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METHODS AND COMPOSITIONS FOR TREATING ATOPIC DERMATITIS

20230033663 · 2023-02-02

    Inventors

    Cpc classification

    International classification

    Abstract

    Methods and compositions are provided herein for treating atopic dermatitis in a subject, using one or more bacterial strains such as Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, or Streptococcus intermedius 393.

    Claims

    1. A method for identifying a subject as having atopic dermatitis, the method comprising: (a) identifying a subject having a sample that has: (i) an increased level of one or more bacterial species selected from: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium. striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of one or more bacterial species selected from: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius; as having atopic dermatitis; or (b) identifying a subject having a sample that does not have: (i) an increased level of one or more bacterial species selected from: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; or (ii) a decreased level of one or more bacterial species selected from: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius; as not having atopic dermatitis.

    2. A method for diagnosing a subject as having atopic dermatitis, the method comprising: (a) diagnosing a subject having a sample that has: (i) an increased level of one or more bacterial species selected from: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of one or more bacterial species selected from: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius; as having atopic dermatitis; or (b) diagnosing a subject having a sample that does not have: (i) an increased level of one or more bacterial species selected from: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; or (ii) a decreased level of one or more bacterial species selected from: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius; as not having atopic dermatitis.

    3. A method of treating atopic dermatitis in a subject, the method comprising: (a) administering an atopic dermatitis therapy to a subject determined to have a sample that has: (i) an increased level of one or more of: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium. striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of one or more of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius; or (b) not administering an atopic dermatitis therapy to a subject determined not to have a sample that has: (i) an increased level of one or more of: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of one or more of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius.

    4. A method of treating atopic dermatitis in a subject, the method comprising: (a) administering a composition comprising an effective amount of a bacterial species selected from the group consisting of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius, and a combination thereof, as a monotherapy, or in conjunction with an atopic dermatitis therapy, to a subject determined to have a sample that has: (i) an increased level of one or more of: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium. striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of one or more of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius; or (b) not administering a composition comprising an effective amount of a bacterial species selected from the group consisting of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius, and a combination thereof, to a subject determined not to have a sample that has: (i) an increased level of one or more of: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium. striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of one or more of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella, Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius.

    5. The method of any one of claims 1-4, wherein the method comprises detecting the level of one or more bacterial species in the sample from the subject.

    6. The method of any one of claims 1-5, wherein the level of Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, or Turicella otitidis is increased in comparison to the same bacterial species in a reference sample.

    7. The method of any one of claims 1-6, wherein the method comprises determining that the sample has: (i) an increased level of two or more of: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of two or more of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius.

    8. The method of any one of claims 1-7, wherein the method comprises determining that the sample has: (i) an increased level of three or more of: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of two or more of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius.

    9. The method of any one of claims 1-8, wherein the method comprises determining that the sample has: (i) an increased level of four or more of: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of two or more of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius.

    10. The method of any one of claims 3 and 5-9, wherein the atopic dermatitis therapy comprises a probiotic.

    11. The method of claims 3 and 5-10, wherein the atopic dermatitis therapy comprises vitamin D, an antihistamine, a corticosteroid, a calcineurin inhibitor, an immunosuppressant, a phosphodiesterase-4 inhibitor, an anti-interleukin-4 receptor (IL-4Rα) antibody, an antibiotic, phototherapy, or a combination thereof.

    12. The method of claim 11, wherein the corticosteroid comprises hydrocortisone, clobetasol propionate, betamethasone dipropionate, halobetasol propionate, diflorasone diacetate, fluocinonide, halcinonide, amcinonide, desoximetasone, triamcinolone acetonide, mometasone furoate, fluticasone propionate, betamethasone dipropionate, halometasone, fluocinolone acetonide, hydrocortisone valerate, hydrocortisone butyrate, flurandrenolide, triamcinolone acetonide, mometasone furoate, fluticasone propionate, desonide, fluocinolone acetonide, hydrocortisone valerate, alclometasone dipropionate, triamcinolone acetonide, fluocinolone acetonide, desonide, or a combination thereof.

    13. The method of claim 11 or 12, wherein the atopic dermatitis therapy comprises diphenhydramine, tacrolimus, pimecrolimus, cyclosporine A, methotrexate, interferon gamma, mycophenolate mofetil, azathioprine, crisaborole, dupilumab, or a combination thereof.

    14. A method for treating a subject in need thereof, the method comprising administering to the subject a composition comprising an effective amount of a bacterial species selected from the group consisting of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius, and a combination thereof.

    15. The method of claim 14, wherein the subject has atopic dermatitis.

    16. A method for treating atopic dermatitis in a subject, the method comprising administering to the subject a composition comprising an effective amount of a bacterial species selected from the group consisting of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius, and a combination thereof.

    17. A method for treating atopic dermatitis in a subject, the method comprising: (a) detecting a dysbiosis associated with atopic dermatitis in a sample from the subject; and (b) administering to the subject a composition comprising an effective amount of a bacterial species selected from the group consisting of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius, and a combination thereof.

    18. The method of claim 17, wherein detecting the dysbiosis associated with atopic dermatitis comprises determining bacterial gene expression in the sample from the subject.

    19. The method of claim 17 or 18, wherein detecting the dysbiosis associated with atopic dermatitis comprises determining bacterial composition in the sample from the subject.

    20. The method of claim any one of claims 17-19, wherein detecting the dysbiosis associated with atopic dermatitis comprises determining that Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, Turicella otitidis, or a combination thereof, is increased in the sample from subject.

    21. The method of claim any one of claims 17-20, wherein detecting the dysbiosis associated with atopic dermatitis comprises determining that Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, Streptococcus intermedius, or a combination thereof, is decreased in the sample from subject.

    22. The method of claim 21, wherein Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, Streptococcus intermedius, or a combination thereof, is decreased in the gastrointestinal tract of the subject.

    23. The method of any one of claims 1-13 and 17-22, wherein the sample is a skin swab sample.

    24. A method for treating a subject in need thereof, the method comprising decreasing a population of an increased bacterial strain in the subject, wherein the increased bacterial strain is selected from the group consisting of: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, Turicella otitidis, and a combination thereof.

    25. The method of claim 24, wherein the subject has atopic dermatitis.

    26. The method of claim 24 or 25, wherein decreasing the population of an increased bacterial strain comprises administering to the subject a bacteriophage.

    27. The method of any one of claims 24-26, wherein decreasing the population of an increased bacterial strain comprises administering to the subject a composition comprising an effective amount of a bacterial species selected from the group consisting of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, Streptococcus intermedius, and a combination thereof.

    28. The method of any one of claims 1-13 and 20-27, wherein the bacterial species Corynebacterium genitalium comprises the bacterial strain Corynebacterium genitalium 418H.

    29. The method of any one of claims 1-13 and 20-28, wherein the bacterial species Corynebacterium matruchotii comprises the bacterial strain Corynebacterium matruchotii ATCC 33806.

    30. The method of any one of claims 1-13 and 20-29, wherein the bacterial species Corynebacterium.striatum comprises the bacterial strain Corynebacterium striatum ATCC 6940.

    31. The method of any one of claims 1-13 and 20-30, wherein the bacterial species Corynebacterium matruchotii comprises the bacterial strain Corynebacterium tuberculostearicum CIP 102857.

    32. The method of any one of claims 1-13 and 20-31, wherein the bacterial species Finegoldia magna comprises the bacterial strain Finegoldia magna 312.

    33. The method of any one of claims 1-13 and 20-32, wherein the bacterial species Gordonia terrae comprises the bacterial strain Gordonia terrae T5.

    34. The method of any one of claims 1-13 and 20-33, wherein the bacterial species Micrococcus luteus comprises the bacterial strain Micrococcus luteus SK58.

    35. The method of any one of claims 1-13 and 20-34, wherein the bacterial species Peptococcus saccharolyticus comprises the bacterial strain Peptococcus saccharolyticus S1.

    36. The method of any one of claims 1-13 and 20-35, wherein the bacterial species Prevotella oris comprises the bacterial strain Prevotella oris F0302.

    37. The method of any one of claims 1-13 and 20-36, wherein the bacterial species Staphylococcus aureus comprises the bacterial strain Staphylococcus aureus C-243, Staphylococcus aureus MRSA252, Staphylococcus aureus MSSA476, Staphylococcus aureus MU3, Staphylococcus aureus ACM 2434, or a combination thereof.

    38. The method of any one of claims 1-13 and 20-37, wherein the bacterial species Staphylococcus caprae comprises the bacterial strain Staphylococcus caprae 143.22, Staphylococcus caprae M23864 W1, or a combination thereof.

    39. The method of any one of claims 1-13 and 20-38, wherein the bacterial species Staphylococcus cohnii comprises the bacterial strain Staphylococcus cohnii CCS 85.

    40. The method of any one of claims 1-13 and 20-39, wherein the bacterial species Staphylococcus devriesei comprises the bacterial strain Staphylococcus devriesei KS SP60.

    41. The method of any one of claims 1-13 and 20-40, wherein the bacterial species Staphylococcus epidermidis comprises the bacterial strain Staphylococcus epidermidis WHO 12.

    42. The method of any one of claims 1-13 and 20-41, wherein the bacterial species Staphylococcus hominis comprises the bacterial strain Staphylococcus hominis DM 122.

    43. The method of any one of claims 1-13 and 20-42, wherein the bacterial species Streptococcus mitis comprises the bacterial strain Streptococcus mitis R 360.

    44. The method of any one of claims 1-13 and 20-43, wherein the bacterial species Turicella otitidis comprises the bacterial strain Turicella otitidis 234/92.

    45. The method of any one of claims 1-13 and 20-44, wherein the bacterial species Brevundimonas nasdae comprises the bacterial strain Brevundimonas nasdae W1-2B.

    46. The method of any one of claims 1-13 and 20-45, wherein the bacterial species Capnocytophaga sputigena comprises the bacterial strain Capnocytophaga sputigena 4.

    47. The method of any one of claims 1-13 and 20-46, wherein the bacterial species Moraxella sp. comprises the bacterial strain Moraxella sp. LMG 5131.

    48. The method of any one of claims 1-13 and 20-47, wherein the bacterial species Neisseria elongata comprises the bacterial strain Neisseria elongata ATCC 29315.

    49. The method of any one of claims 1-13 and 20-48, wherein the bacterial species Staphylococcus felis comprises the bacterial strain Staphylococcus felis GD521.

    50. The method of any one of claims 1-13 and 20-49, wherein the bacterial species Staphylococcus sciuri comprises the bacterial strain Staphylococcus sciuri SC116.

    51. The method of any one of claims 1-13 and 20-50, wherein the bacterial species Streptococcus intermedius comprises the bacterial strain Streptococcus intermedius 393.

    52. The method of any one of claims 45-51, wherein the Brevundimonas nasdae W1-2B has a 16S RNA gene that is at least 95% identical to SEQ ID NO:1.

    53. The method of any one of claims 46-52, wherein the Capnocytophaga sputigena 4 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:2.

    54. The method of any one of claims 46-52, wherein the Capnocytophaga sputigena 4 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:3.

    55. The method of any one of claims 46-52, wherein the Capnocytophaga sputigena 4 has a 16S+RNA gene that is at least 95% identical to SEQ ID NO:4.

    56. The method of any one of claims 46-52, wherein the Capnocytophaga sputigena 4 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:5.

    57. The method of any one of claims 46-52, wherein the Capnocytophaga sputigena 4 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:6.

    58. The method of any one of claims 47-57, wherein the Moraxella sp. LMG 5131 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:7.

    59. The method of any one of claims 47-57, wherein the Moraxella sp. LMG 5131 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:8.

    60. The method of any one of claims 47-57, wherein the Moraxella sp. LMG 5131 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:9.

    61. The method of any one of claims 47-57, wherein the Moraxella sp. LMG 5131 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:10.

    62. The method of any one of claims 47-57, wherein the Moraxella sp. LMG 5131 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:11.

    63. The method of any one of claims 48-62, wherein the Neisseria elongata ATCC 29315 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:12.

    64. The method of any one of claims 48-62, wherein the Neisseria elongata ATCC 29315 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:13.

    65. The method of any one of claims 48-62, wherein the Neisseria elongata ATCC 29315 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:14.

    66. The method of any one of claims 48-62, wherein the Neisseria elongata ATCC 29315 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:15.

    67. The method of any one of claims 48-62, wherein the Neisseria elongata ATCC 29315 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:16.

    68. The method of any one of claims 48-62, wherein the Neisseria elongata ATCC 29315 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:17.

    69. The method of any one of claims 49-68, wherein the Staphylococcus fells GD521 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:18.

    70. The method of any one of claims 50-69, wherein the Staphylococcus sciuri SC116 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:19.

    71. The method of any one of claims 51-70, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:20.

    72. The method of any one of claims 51-70, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:21.

    73. The method of any one of claims 51-70, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:22.

    74. The method of any one of claims 51-70, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:23.

    75. The method of any one of claims 51-70, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:24.

    76. The method of any one of claims 51-70, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:25.

    77. The method of any one of claims 51-70, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:26.

    78. The method of any one of claims 51-70, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:27.

    79. The method of any one of claims 51-70, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:28.

    80. The method of any one of claims 51-70, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:29.

    81. The method of any one of claims 51-70, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:30.

    82. The method of any one of claims 4, 14-23, and 27-81, wherein administering the composition improves epidermal barrier function of the subject.

    83. The method of any one of claims 4, 14-23, and 27-82, wherein the bacterial species in the composition is viable.

    84. The method of any one of claims 4, 14-23, and 27-83, wherein the bacterial strain is lyophilized.

    85. The method of any one of claims 4, 14-23, and 27-84, wherein the composition further comprises one or more cryopreservants.

    86. The method of any one of claims 4, 14-23, and 27-85, wherein the effective amount of the bacterial strain comprises at least about 1×10.sup.3 colony forming units (CFU) of the bacterial strain.

    87. The method of any one of claims 4, 14-23, and 27-86, wherein the effective amount of the bacterial strain comprises about 1×10.sup.4 to about 1×10.sup.15 CFU of the bacterial strain.

    88. The method of any one of claims 4, 14-23, and 27-87, wherein the effective amount of the bacterial strain comprises about 1×10.sup.6 to about 1×10.sup.10 CFU of the bacterial strain.

    89. The method of any one of claims 4, 14-23, and 27-82, wherein the bacterial strain in the composition is non-viable.

    90. The method of claim 89, wherein the non-viable bacterial strain is heat-killed, irradiated, or lysed.

    91. The method of any one of claims 4, 14-23, and 27-90, wherein the method comprises administering the composition to the subject once, twice, or three times per day.

    92. The method of any one of claims 4, 14-23, and 27-91, wherein the composition is formulated for topical administration.

    93. The method of any one of claims 4, 14-23, and 27-92, wherein the composition is formulated as a paste, gel, cream, spray, mousse, emollient, ointment, foam, or suspension.

    94. The method of any one of claims 4, 14-23, and 27-91, wherein the composition is formulated for oral administration.

    95. The method of any one of claims 4, 14-23, and 27-91, wherein the composition is formulated for rectal administration.

    96. The method of any one of claims 4, 14-23, 27-91, 94, and 95, wherein the composition is formulated as a tablet, a capsule, a powder, or a liquid.

    97. The method of any one of claims 4, 14-23, 27-91, and 94-96, wherein the composition is formulated as a tablet.

    98. The method of claim 97, wherein the tablet is coated.

    99. The method of claim 98, wherein the coating comprises an enteric coating.

    100. The method of any one of claims 14-99, wherein the method further comprises administering another atopic dermatitis therapy and/or adjunct therapy to the subject.

    101. The method of claim 100, wherein the composition comprising the bacterial strain and the atopic dermatitis therapy and/or adjunct therapy are administered simultaneously.

    102. The method of claim 100, wherein the composition comprising the bacterial strain and theatopic dermatitis therapy and/or adjunct therapy are administered sequentially.

    103. The method of claim 100, wherein the composition comprising the bacterial strain further comprises the atopic dermatitis therapy and/or adjunct therapy.

    104. The method of any one of claims 100-103, wherein the atopic dermatitis therapy and/or adjunct therapy comprises a probiotic.

    105. The method of claim 100-104, wherein the atopic dermatitis therapy and/or adjunct therapy comprises vitamin D, an antihistamine, a corticosteroid, a calcineurin inhibitor, an immunosuppressant, a phosphodiesterase-4 inhibitor, an anti-interleukin-4 receptor (IL-4Rα) antibody, an antibiotic, phototherapy, or a combination thereof.

    106. The method of claim 105, wherein the corticosteroid comprises hydrocortisone, clobetasol propionate, betamethasone dipropionate, halobetasol propionate, diflorasone diacetate, fluocinonide, halcinonide, amcinonide, desoximetasone, triamcinolone acetonide, mometasone furoate, fluticasone propionate, betamethasone dipropionate, halometasone, fluocinolone acetonide, hydrocortisone valerate, hydrocortisone butyrate, flurandrenolide, triamcinolone acetonide, mometasone furoate, fluticasone propionate, desonide, fluocinolone acetonide, hydrocortisone valerate, alclometasone dipropionate, triamcinolone acetonide, fluocinolone acetonide, desonide, or a combination thereof.

    107. The method of claim 105 or 106, wherein the atopic dermatitis therapy and/or adjunct therapy comprises diphenhydramine, tacrolimus, pimecrolimus, cyclosporine A, methotrexate, interferon gamma, mycophenolate mofetil, azathioprine, crisaborole, dupilumab, or a combination thereof.

    108. The method of any one of claims 1-107, wherein the subject is a human.

    109. A method for treating a subject in need thereof, the method comprising administering to the subject a composition comprising an effective amount of a bacterial strain selected from the group consisting of: Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, Streptococcus intermedius 393, and a combination thereof.

    110. The method of claim 109, wherein the subject has atopic dermatitis.

    111. A method for treating atopic dermatitis in a subject, the method comprising administering to the subject a composition comprising an effective amount of a bacterial strain selected from the group consisting of: Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, Streptococcus intermedius 393, and a combination thereof.

    112. A method for treating atopic dermatitis in a subject, the method comprising: (a) detecting a dysbiosis associated with atopic dermatitis in a sample from the subject; and (b) administering to the subject a composition comprising an effective amount of a bacterial strain selected from the group consisting of: Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, Streptococcus intermedius 393, and a combination thereof.

    113. The method of claim 112, wherein the sample is a skin swab sample.

    114. The method of claim 112 or 113, wherein detecting the dysbiosis associated with atopic dermatitis comprises determining bacterial gene expression in the sample from the subject.

    115. The method of any one of claims 112-114, wherein detecting the dysbiosis associated with atopic dermatitis comprises determining bacterial composition in the sample from the subject.

    116. The method of claim any one of claims 112-115, wherein detecting the dysbiosis associated with atopic dermatitis comprises determining that Corynebacterium genitalium 418H, Corynebacterium matruchotii ATCC 33806, Corynebacterium.striatum ATCC 6940, Corynebacterium tuberculostearicum CIP 102857, Finegoldia magna 312, Gordonia terrae T5, Micrococcus luteus SK58, Peptococcus saccharolyticus S1, Prevotella oris F0302, Staphylococcus aureus C-243, Staphylococcus aureus MRSA252, Staphylococcus aureus MSSA476, Staphylococcus aureus MU3, Staphylococcus aureus ACM 2434, Staphylococcus caprae 143.22, Staphylococcus caprae M23864 W1, Staphylococcus cohnii CCS 85, Staphylococcus devriesei KS SP60, Staphylococcus epidermidis WHO 12, Staphylococcus hominis DM 122, Streptococcus mitis R 360, Turicella otitidis 234/92, or a combination thereof, is increased in the sample from subject.

    117. The method of claim any one of claims 112-116, wherein detecting the dysbiosis associated with atopic dermatitis comprises determining that Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, Streptococcus intermedius 393, or a combination thereof, is decreased in the sample from subject.

    118. The method of claim 117, wherein Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, Streptococcus intermedius 393, or a combination thereof, is decreased in the gastrointestinal tract of the subject.

    119. A method for treating a subject in need thereof, the method comprising decreasing a population of an increased bacterial strain in the subject, wherein the increased bacterial strain is selected from the group consisting of: Corynebacterium genitalium 418H, Corynebacterium matruchotii ATCC 33806, Corynebacterium.striatum ATCC 6940, Corynebacterium tuberculostearicum CIP 102857, Finegoldia magna 312, Gordonia terrae T5, Micrococcus luteus SK58, Peptococcus saccharolyticus S1, Prevotella oris F0302, Staphylococcus aureus C-243, Staphylococcus aureus MRSA252, Staphylococcus aureus MSSA476, Staphylococcus aureus MU3, Staphylococcus aureus ACM 2434, Staphylococcus caprae 143.22, Staphylococcus caprae M23864 W1, Staphylococcus cohnii CCS 85, Staphylococcus devriesei KS SP60, Staphylococcus epidermidis WHO 12, Staphylococcus hominis DM 122, Streptococcus mitis R 360, Turicella otitidis 234/92, and a combination thereof.

    120. The method of claim 119, wherein the subject has atopic dermatitis.

    121. The method of claim 119 or 120, wherein decreasing the population of an increased bacterial strain comprises administering to the subject a bacteriophage.

    122. The method of any one of claims 119-121, wherein decreasing the population of an increased bacterial strain comprises administering to the subject a composition comprising an effective amount of a bacterial strain selected from the group consisting of: Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, Streptococcus intermedius 393, and a combination thereof.

    123. The method of any one of claims 109-118 and 122, wherein the bacterial strain comprises Brevundimonas nasdae W1-2B.

    124. The method of any one of claims 109-118, 122, and 123, wherein the bacterial strain comprises Capnocytophaga sputigena 4.

    125. The method of any one of claims 109-118 and 122-124, wherein the bacterial strain comprises Moraxella sp. LMG 5131.

    126. The method of any one of claims 109-118 and 122-125, wherein the bacterial strain comprises Neisseria elongata ATCC 29315.

    127. The method of any one of claims 109-118 and 122-126, wherein the bacterial strain comprises Staphylococcus felis GD521.

    128. The method of any one of claims 109-118 and 122-127, wherein the bacterial strain comprises Staphylococcus sciuri SC116.

    129. The method of any one of claims 109-118 and 122-128, wherein the bacterial strain comprises Streptococcus intermedius 393.

    130. The method of any one of claims 109-118 and 122-129, wherein the bacterial strain improves epidermal barrier function of the subject.

    131. The method of any one of claims 109-118 and 122-130, wherein the Brevundimonas nasdae W1-2B has a 16S RNA gene that is at least 95% identical to SEQ ID NO:1.

    132. The method of any one of claims 109-118 and 122-131, wherein the Capnocytophaga sputigena 4 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:2.

    133. The method of any one of claims 109-118 and 122-132, wherein the Capnocytophaga sputigena 4 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:3.

    134. The method of any one of claims 109-118 and 122-133, wherein the Capnocytophaga sputigena 4 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:4.

    135. The method of any one of claims 109-118 and 122-134, wherein the Capnocytophaga sputigena 4 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:5.

    136. The method of any one of claims 109-118 and 122-135, wherein the Capnocytophaga sputigena 4 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:6.

    137. The method of any one of claims 109-118 and 122-136, wherein the Moraxella sp. LMG 5131 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:7.

    138. The method of any one of claims 109-118 and 122-137, wherein the Moraxella sp. LMG 5131 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:8.

    139. The method of any one of claims 109-118 and 122-138, wherein the Moraxella sp. LMG 5131 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:9.

    140. The method of any one of claims 109-118 and 122-139, wherein the Moraxella sp. LMG 5131 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:10.

    141. The method of any one of claims 109-118 and 122-140, wherein the Moraxella sp. LMG 5131 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:11.

    142. The method of any one of claims 109-118 and 122-141, wherein the Neisseria elongata ATCC 29315 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:12.

    143. The method of any one of claims 109-118 and 122-142, wherein the Neisseria elongata ATCC 29315 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:13.

    144. The method of any one of claims 109-118 and 122-143, wherein the Neisseria elongata ATCC 29315 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:14.

    145. The method of any one of claims 109-118 and 122-144, wherein the Neisseria elongata ATCC 29315 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:15.

    146. The method of any one of claims 109-118 and 122-145, wherein the Neisseria elongata ATCC 29315 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:16.

    147. The method of any one of claims 109-118 and 122-146, wherein the Neisseria elongata ATCC 29315 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:17.

    148. The method of any one of claims 109-118 and 122-147, wherein the Staphylococcus felis GD521 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:18.

    149. The method of any one of claims 109-118 and 122-148, wherein the Staphylococcus sciuri SC116 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:19.

    150. The method of any one of claims 109-118 and 122-149, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:20.

    151. The method of any one of claims 109-118 and 122-150, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:21.

    152. The method of any one of claims 109-118 and 122-151, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:22.

    153. The method of any one of claims 109-118 and 122-152, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:23.

    154. The method of any one of claims 109-118 and 122-153, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:24.

    155. The method of any one of claims 109-118 and 122-154, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:25.

    156. The method of any one of claims 109-118 and 122-155, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:26.

    157. The method of any one of claims 109-118 and 122-156, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:27.

    158. The method of any one of claims 109-118 and 122-157, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:28.

    159. The method of any one of claims 109-118 and 122-158, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:29.

    160. The method of any one of claims 109-118 and 122-159, wherein the Streptococcus intermedius 393 has a 16S RNA gene that is at least 95% identical to SEQ ID NO:30.

    161. The method of any one of claims 109-118 and 122-160, wherein the bacterial strain in the composition is viable.

    162. The method of any one of claims 109-118 and 122-161, wherein the bacterial strain is lyophilized.

    163. The method of any one of claims 109-118 and 122-162, wherein the composition further comprises one or more cryopreservants.

    164. The method of any one of claims 109-118 and 122-163, wherein the effective amount of the bacterial strain comprises at least about 1×10.sup.3 colony forming units (CFU) of the bacterial strain.

    165. The method of any one of claims 109-118 and 122-164, wherein the effective amount of the bacterial strain comprises about 1×10.sup.4 to about 1×10.sup.15 CFU of the bacterial strain.

    166. The method of any one of claims 109-118 and 122-165, wherein the effective amount of the bacterial strain comprises about 1×10.sup.6 to about 1×10.sup.10 CFU of the bacterial strain.

    167. The method of any one of claims 109-118 and 122-160, wherein the bacterial strain in the composition is non-viable.

    168. The method of claim 167, wherein the non-viable bacterial strain is heat-killed, irradiated, or lysed.

    169. The method of any one of claims 109-118 and 122-168, wherein the method comprises administering the composition to the subject once, twice, or three times per day.

    170. The method of any one of claims 109-118 and 122-169, wherein the composition is formulated for topical administration.

    171. The method of any one of claims 109-118 and 122-170, wherein the composition is formulated as a paste, gel, cream, spray, mousse, emollient, ointment, foam, or suspension.

    172. The method of any one of claims 109-169, wherein the composition is formulated for oral administration.

    173. The method of any one of claims 109-169, wherein the composition is formulated for rectal administration.

    174. The method of any one of claims 109-173, wherein the composition is formulated as a tablet, a capsule, a powder, or a liquid.

    175. The method of any one of claims 109-174, wherein the composition is formulated as a tablet.

    176. The method of claim 175, wherein the tablet is coated.

    177. The method of claim 176, wherein the coating comprises an enteric coating.

    178. The method of any one of claims 109-177, wherein the method further comprises administering another treatment for atopic dermatitis and/or adjunct therapy to the subject.

    179. The method of claim 178, wherein the composition comprising the bacterial strain treatment and the treatment for atopic dermatitis and/or adjunct therapy are administered simultaneously.

    180. The method of claim 178, wherein the composition comprising the bacterial strain treatment and the treatment for atopic dermatitis and/or adjunct therapy are administered sequentially.

    181. The method of claim 178, wherein the composition comprising the bacterial strain further comprises the treatment for atopic dermatitis and/or adjunct therapy.

    182. The method of any one of claims 178-181, wherein the treatment for atopic dermatitis and/or adjunct therapy comprises a probiotic.

    183. The method of claim 178-182, wherein the treatment for atopic dermatitis and/or adjunct therapy comprises vitamin D, an antihistamine, a corticosteroid, a calcineurin inhibitor, an immunosuppressant, a phosphodiesterase-4 inhibitor, an anti-interleukin-4 receptor (IL-4Rα) antibody, an antibiotic, phototherapy, or a combination thereof.

    184. The method of claim 183, wherein the corticosteroid comprises hydrocortisone, clobetasol propionate, betamethasone dipropionate, halobetasol propionate, diflorasone diacetate, fluocinonide, halcinonide, amcinonide, desoximetasone, triamcinolone acetonide, mometasone furoate, fluticasone propionate, betamethasone dipropionate, halometasone, fluocinolone acetonide, hydrocortisone valerate, hydrocortisone butyrate, flurandrenolide, triamcinolone acetonide, mometasone furoate, fluticasone propionate, desonide, fluocinolone acetonide, hydrocortisone valerate, alclometasone dipropionate, triamcinolone acetonide, fluocinolone acetonide, desonide, or a combination thereof.

    185. The method of claim 183 or 184, wherein the treatment for atopic dermatitis and/or adjunct therapy comprises diphenhydramine, tacrolimus, pimecrolimus, cyclosporine A, methotrexate, interferon gamma, mycophenolate mofetil, azathioprine, crisaborole, dupilumab, or a combination thereof.

    186. The method of any one of claims 109-185, wherein the subject is a human.

    187. A method of characterizing a biopsy sample obtained from a subject as comprising a lesion or healthy tissue comprising: characterizing a biopsy sample that has: (i) an increased level of one or more bacterial species selected from: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of one or more bacterial species selected from: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius; as comprising a lesion; or (b) characterizing a biopsy sample that does not have: (i) an increased level of one or more bacterial species selected from: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; or (ii) a decreased level of one or more bacterial species selected from: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius; as comprising healthy tissue.

    Description

    DESCRIPTION OF DRAWINGS

    [0221] FIG. 1 is an exemplary schematic of the analysis.

    [0222] FIG. 2 has plots showing the tallies of strains detected (after prevalence filtering). The top panel tallies the strains detected in increasing number of datasets. The middle panel shows the number of strains that were significantly differentially abundant in 1 or more datasets. The bottom panel shows the number of strains that exhibit concordance in direction of the log 2 fold change, in increasing proportions of datasets in which they were detected. Only strains detected in at least two datasets are included.

    [0223] FIG. 3 is a plot showing that significant findings from isolated dataset analysis rarely exhibits concordance in the direction of shifts across multiple datasets. Each row represents a strain identified as significantly differentially abundant by at least one isolated analysis. Asterisk denotes dataset(s) where significant changes of a strain was observed. Cell color indicates direction of the log 2 fold change: reduced (decreased) (green) or enriched (increased) (pink) in dysbiosis and not detected (white). Cells are shaded dark if the direction of log 2 fold change is concordant across all datasets a strain was detected in, i.e., the strain is associated with homeostasis or dysbiosis only. Two contrasts were analyzed from each of the two cohorts of patients. Results from analysis of cohort 1 and cohort 2 are represented in first and second columns, and third and fourth columns, respectively. See FIG. 8 for details on contrasts analyzed within each cohort of subjects.

    [0224] FIG. 4 is a plot showing the distribution of effect sizes per dataset. 16S-NGS refers to sequencing of the 16S rRNA gene via next generation sequencing (NGS).

    [0225] FIG. 5 is a plot showing strains (dots) significantly differentially abundant in eubiotic or dysbiotic state by isolated-dataset analysis (grey squares) or MTMA (grey spheres) in atopic dermatitis. Strains (dots) are sized by the number of datasets in which they were detected and colored as follows: significant by isolated analysis only (dark green); MTMA only (purple); or both (blue). Solid lines connect MTMA results to strains and dashed lines connect isolated analysis results to strains. Thick and thin lines indicate significant and non-significant findings, respectively. Red and green lines indicate enrichment (increase) and reduction (decrease) in dysbiotic state, respectively. Annotation for strains described here are provided in FIG. 9.

    [0226] FIG. 6 is a forest plot demonstrating distribution of log 2 fold changes and 95% confidence intervals for strains that were identified as significantly differentially abundant by MTMA. Circles and triangles indicate log 2 fold change estimated by isolated analysis and MTMA, respectively. Error bars in the forest plots correspond to the 95% confidence interval. Green and blue indicate significant and nonsignificant findings, respectively, and grey indicates cases where an adjusted p-value could not be imputed by the statistical test.

    [0227] FIG. 7 is a plot of MTMA-derived adjusted p-values and log 2 fold changes. Data points are shaded according to the proportion of datasets in which the strain was detected. Significantly dysbiosis-associated strains plot in the upper left quadrant, whereas homeostasis-associated strains plot in the upper right quadrant. FIG. 9 provides strain names for strain identifiers indicated in the plot.

    [0228] FIG. 8 is a table showing details on contrasts analyzed within each cohort of subjects.

    [0229] FIG. 9 is a table showing the association between the strain identifiers and strain names.

    DETAILED DESCRIPTION

    [0230] This document provides compositions and methods for treating subjects in need thereof (e.g., subjects having atopic dermatitis) using one or more bacterial strains. Atopic dermatitis (AD) is a chronic, inflammatory skin disease (Rusu. Exp Ther Med. 2019 August; 18(2): 926-931). It can be characterized by pruritus, xerosis (dry skin), eczematous lesions, and lichenification. Chronic, localized, or even generalized pruritus are major characteristics of atopic dermatitis (Hong. Semin Cutan Med Surg. 2011 June; 30(2): 71-86.).

    [0231] In some embodiments, methods for treating a subject in need thereof are provided herein. In some embodiments, one or more of Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, and Streptococcus intermedius 393 are reduced (decreased) in a sample (e.g., a fecal sample or a skin swab sample) from the subject in need thereof. For example, one or more of Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, and Streptococcus intermedius 393 are reduced in a sample (e.g., a fecal sample or a skin swab sample) from the subject in need thereof compared to a control sample. Determining that one or more of Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, and Streptococcus intermedius 393 is reduced (decreased) in the sample from the subject in need thereof can comprise sequencing one or more nucleic acids from the bacteria. In some embodiments, the subject in need thereof has been diagnosed with atopic dermatitis. The methods provided herein can include administering to the subject a composition that includes an effective amount of a bacterial strain. In some embodiments, the bacterial strain can be selected from the group consisting of: Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, Streptococcus intermedius 393, and a combination thereof (e.g., any two, any three, any four, any five, any six, or seven of the bacterial strains).

    [0232] In some embodiments, the bacterial strain in the composition comprises Brevundimonas nasdae W1-2B. In some embodiments, Brevundimonas nasdae W1-2B included in a composition provided herein has a 16S RNA gene that is at least 90% identical to SEQ ID NO:1. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to SEQ ID NO:1

    [0233] In some embodiments, the bacterial strain in the composition comprises Capnocytophaga sputigena 4. A complete genomic sequence for Capnocytophaga sputigena 4 is available in the GenBank database as, e.g., Accession No. GCF_000173675. In some embodiments, the Capnocytophaga sputigena 4 included in a composition provided herein can have a genomic sequence with at least about 95% sequence identity to the genomic sequence published as GCF_000173675. For example, Capnocytophaga sputigena 4 included in a composition provided herein can have a genomic sequence with at least about 96%, about 97%, about 98%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% sequence identity to the genomic sequence published as GCF_000173675. In some embodiments, Capnocytophaga sputigena 4 included in a composition provided herein has a 16S RNA gene that is at least 90% identical to one or more (e.g., one, two, three, four, five, or all) of SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, and SEQ ID NO:6. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or more (e.g., one, two, three, four, five, or all) of SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, and SEQ ID NO:6.

    [0234] In some embodiments, the bacterial strain in the composition comprises Moraxella sp. LMG 5131. A complete genomic sequence for Moraxella sp. LMG 5131 is available in the GenBank database as, e.g., Accession No. GCF_001553955. In some embodiments, the Moraxella sp. LMG 5131 included in a composition provided herein can have a genomic sequence with at least about 95% sequence identity to the genomic sequence published as GCF_001553955. For example, Moraxella sp. LMG 5131 included in a composition provided herein can have a genomic sequence with at least about 96%, about 97%, about 98%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% sequence identity to the genomic sequence published as GCF_001553955. In some embodiments, Moraxella sp. LMG 5131 included in a composition provided herein has a 16S RNA gene that is at least 90% identical to one or more (e.g., one, two, three, four, or all) of SEQ ID NO:7, SEQ ID NO:8, SEQ ID NO:9, SEQ ID NO:10, and SEQ ID NO:11. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or more (e.g., one, two, three, four, or all) of SEQ ID NO:7, SEQ ID NO:8, SEQ ID NO:9, SEQ ID NO:10, and SEQ ID NO:11.

    [0235] In some embodiments, the bacterial strain in the composition comprises Neisseria elongata ATCC 29315. A complete genomic sequence for Neisseria elongata ATCC 29315 is available in the GenBank database as, e.g., Accession No. GCF_000176755 and GCF_000818035. In some embodiments, the Neisseria elongata ATCC 29315 included in a composition provided herein can have a genomic sequence with at least about 95% sequence identity to the genomic sequence published as GCF_000176755 and/or GCF_000818035. For example, Neisseria elongata ATCC 29315 included in a composition provided herein can have a genomic sequence with at least about 96%, about 97%, about 98%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% sequence identity to the genomic sequence published as GCF_000176755 and/or GCF_000818035. In some embodiments, Neisseria elongata ATCC 29315 included in a composition provided herein has a 16S RNA gene that is at least 90% identical to one or more (e.g., one, two, three, four, five, or all) of SEQ ID NO:12, SEQ ID NO:13, SEQ ID NO:14, SEQ ID NO:15, SEQ ID NO:16, and SEQ ID NO:17. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or more (e.g., one, two, three, four, five, or all) of SEQ ID NO:12, SEQ ID NO:13, SEQ ID NO:14, SEQ ID NO:15, SEQ ID NO:16, and SEQ ID NO:17.

    [0236] In some embodiments, the bacterial strain in the composition comprises Staphylococcus felis GD521. A complete genomic sequence for Staphylococcus felis GD521 is available in the GenBank database as, e.g., Accession No. GCF_000156495. In some embodiments, the Staphylococcus felis GD521 included in a composition provided herein can have a genomic sequence with at least about 95% sequence identity to the genomic sequence published as GCF_000156495. For example, Staphylococcus felis GD521 included in a composition provided herein can have a genomic sequence with at least about 96%, about 97%, about 98%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% sequence identity to the genomic sequence published as GCF_000156495. In some embodiments, Staphylococcus felis GD521 included in a composition provided herein has a 16S RNA gene that is at least 90% identical to SEQ ID NO:18. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to SEQ ID NO:18.

    [0237] In some embodiments, the bacterial strain in the composition comprises Staphylococcus sciuri SC116. A complete genomic sequence for Staphylococcus sciuri SC116 is available in the GenBank database as, e.g., Accession No. GCF_001046995. In some embodiments, the Staphylococcus sciuri SC116 included in a composition provided herein can have a genomic sequence with at least about 95% sequence identity to the genomic sequence published as GCF_001046995. For example, Staphylococcus sciuri SC116 included in a composition provided herein can have a genomic sequence with at least about 96%, about 97%, about 98%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% sequence identity to the genomic sequence published as GCF_001046995. In some embodiments, Staphylococcus sciuri SC116 included in a composition provided herein has a 16S RNA gene that is at least 90% identical to SEQ ID NO:19. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to SEQ ID NO:19.

    [0238] In some embodiments, the bacterial strain in the composition comprises Streptococcus intermedius 393. A complete genomic sequence for Streptococcus intermedius 393 is available in the GenBank database as, e.g., Accession No. GCF_000474095, GCF_000413475, and GCF_000258445. In some embodiments, the Streptococcus intermedius 393 included in a composition provided herein can have a genomic sequence with at least about 95% sequence identity to the genomic sequence published as one or more of GCF_000474095, GCF_000413475, and GCF_000258445. For example, Streptococcus intermedius 393 included in a composition provided herein can have a genomic sequence with at least about 96%, about 97%, about 98%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% sequence identity to the genomic sequence published as one or more of GCF_000474095, GCF_000413475, and GCF_000258445. In some embodiments, Streptococcus intermedius 393 included in a composition provided herein has a 16S RNA gene that is at least 90% identical to one or more (e.g., one, two, three, four, five, six, seven, eight, nine, ten, or all) of SEQ ID NO:20, SEQ ID NO:21, SEQ ID NO:22, SEQ ID NO:23, SEQ ID NO:24, SEQ ID NO:25, SEQ ID NO:26, SEQ ID NO:27, SEQ ID NO:28, SEQ ID NO:29, and SEQ ID NO:30. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or more (e.g., one, two, three, four, five, six, seven, eight, nine, ten, or all) of SEQ ID NO:20, SEQ ID NO:21, SEQ ID NO:22, SEQ ID NO:23, SEQ ID NO:24, SEQ ID NO:25, SEQ ID NO:26, SEQ ID NO:27, SEQ ID NO:28, SEQ ID NO:29, and SEQ ID NO:30.

    [0239] In some embodiments, the composition can include two or more bacterial strains selected from the group consisting of: Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, and Streptococcus intermedius 393. For example, the composition can include three or more, four or more, five or more, six or more, or all seven bacterial strains selected from the group consisting of: Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, and Streptococcus intermedius 393. Identifying characteristics of each strain are described above.

    [0240] In some embodiments, a method can include detecting, in a sample from the subject, a dysbiosis associated with atopic dermatitis, e.g., before administering to the subject an effective amount of a bacterial strain or a composition containing the bacterial strain. The sample can be a skin swab sample and/or a fecal sample. See, e.g., Watanabe et al. J Allergy Clin. Immunol. 2003, 111(3):587-91.

    [0241] In some embodiments, detecting the dysbiosis associated with atopic dermatitis can include determining bacterial gene expression in the sample from the subject. (e.g., fecal sample or a skin swab sample). For example, the bacterial gene expression can be determined in the sample from the subject e.g., before administering to the subject an effective amount of a bacterial strain or a composition containing the bacterial strain and/or after administering to the subject an effective amount of a bacterial strain or a composition containing the bacterial strain. Determining the bacterial gene expression can include performing, for example, RNAseq and/or RT-qPCR. In some embodiments, detecting the dysbiosis associated with atopic dermatitis comprises determining bacterial composition in the sample from the subject (e.g., a skin swab sample). For example, the bacterial composition can be determined in a sample from the subject, e.g., before administering to the subject an effective amount of a bacterial strain or a composition containing the bacterial strain and/or after administering to the subject an effective amount of a bacterial strain or a composition containing the bacterial strain. Determining the bacterial composition can include, for example, sequencing one or more nucleic acids from the bacteria. In some embodiments, bacteria can be identified by their 16S rRNA gene sequence.

    [0242] In some embodiments, detecting the dysbiosis comprises determining that Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, Streptococcus intermedius 393, or a combination thereof, is reduced (decreased) in the sample from subject (e.g., reduced (decreased) on the skin of the subject). In some embodiments, detecting the dysbiosis comprises determining that Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, Streptococcus intermedius 393, or a combination thereof, is reduced (decreased) in the sample from subject (e.g., reduced (decreased) on the skin of the subject).

    [0243] In some embodiments, detecting the dysbiosis associated with atopic dermatitis comprises determining that Corynebacterium genitalium 418H, Corynebacterium matruchotii ATCC 33806, Corynebacterium.striatum ATCC 6940, Corynebacterium tuberculostearicum CIP 102857, Finegoldia magna 312, Gordonia terrae T5, Micrococcus luteus SK58, Peptococcus saccharolyticus S1, Prevotella oris F0302, Staphylococcus aureus C-243, Staphylococcus aureus MRSA252, Staphylococcus aureus MSSA476, Staphylococcus aureus MU3, Staphylococcus aureus ACM 2434, Staphylococcus caprae 143.22, Staphylococcus caprae M23864 W1, Staphylococcus cohnii CCS 85, Staphylococcus devriesei KS SP60, Staphylococcus epidermidis WHO 12, Staphylococcus hominis DM 122, Streptococcus mitis R 360, Turicella otitidis 234/92, or a combination thereof, is enriched (increased) in the sample from subject.

    [0244] In some embodiments, a method as provided herein can include decreasing a population of an enriched (increased) bacterial strain in a subject (e.g., a subject with atopic dermatitis). In some embodiments, detecting the decrease in the population of an enriched (increased) bacterial strain comprises determining the bacterial composition in a sample from the subject (e.g., a fecal sample or a skin swab sample). For example, the bacterial composition can be determined in a sample from the subject before administering to the subject an effective amount of a bacterial strain or a composition containing the bacterial strain and after administering to the subject an effective amount of a bacterial strain or a composition containing the bacterial strain. For example, the population of an enriched (increased) bacterial strain can be decreased by at least 1%, at least 2%, at least 3%, at least 4%, at least 5%, at least 6%, at least 7%, at least 10%, at least 20%, at least 25%, at least 30%, at least 35%, at least 40%, or at least 50%, e.g., in a sample from the subject after administration of a bacterial strain or a composition containing the bacterial strain to the subject compared to before administration to the subject of an effective amount of a bacterial strain or a composition containing the bacterial strain. Determining the bacterial composition can include, for example, sequencing one or more nucleic acids from the bacteria. In some embodiments, bacteria can be identified by their 16S rRNA gene sequence.

    [0245] In some embodiments, the enriched (increased) bacterial strain can be selected from the group consisting of: Corynebacterium genitalium 418H, Corynebacterium matruchotii ATCC 33806, Corynebacterium.striatum ATCC 6940, Corynebacterium tuberculostearicum CIP 102857, Finegoldia magna 312, Gordonia terrae T5, Micrococcus luteus SK58, Peptococcus saccharolyticus S1, Prevotella oris F0302, Staphylococcus aureus C-243, Staphylococcus aureus MRSA252, Staphylococcus aureus MSSA476, Staphylococcus aureus MU3, Staphylococcus aureus ACM 2434, Staphylococcus caprae 143.22, Staphylococcus caprae M23864 W1, Staphylococcus cohnii CCS 85, Staphylococcus devriesei KS SP60, Staphylococcus epidermidis WHO 12, Staphylococcus hominis DM 122, Streptococcus mitis R 360, Turicella otitidis 234/92, and a combination thereof.

    [0246] In some embodiments, Corynebacterium genitalium 418H has a 16S RNA gene that is at least 90% identical to SEQ ID NO:31. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to SEQ ID NO:31.

    [0247] In some embodiments, Corynebacterium matruchotii ATCC 33806 has a 16S RNA gene that is at least 90% identical to one or more (e.g., one, two, or all) of SEQ ID NO:32, SEQ ID NO:33, and SEQ ID NO:34. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or more (e.g., one, two, or all) of SEQ ID NO:32, SEQ ID NO:33, and SEQ ID NO:34.

    [0248] In some embodiments, Corynebacterium.striatum ATCC 6940 has a 16S RNA gene that is at least 90% identical to one or more (e.g., one, two, three, or all) of SEQ ID NO:35, SEQ ID NO:36, SEQ ID NO:37, and SEQ ID NO:38. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or more (e.g., one, two, three, or all) of SEQ ID NO:35, SEQ ID NO:36, SEQ ID NO:37, and SEQ ID NO:38.

    [0249] In some embodiments, Corynebacterium tuberculostearicum CIP 102857 has a 16S RNA gene that is at least 90% identical to SEQ ID NO:39. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to SEQ ID NO:39.

    [0250] In some embodiments, Finegoldia magna 312 has a 16S RNA gene that is at least 90% identical to one or more (e.g., one, two, three, or all) of SEQ ID NO:40, SEQ ID NO:41, SEQ ID NO:42, and SEQ ID NO:43. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or more (e.g., one, two, three, or all) of SEQ ID NO:40, SEQ ID NO:41, SEQ ID NO:42, and SEQ ID NO:43.

    [0251] In some embodiments, Gordonia terrae T5 has a 16S RNA gene that is at least 90% identical to one or more (e.g., one, two, three, or all) SEQ ID NO:44, SEQ ID NO:45, SEQ ID NO:46, and SEQ ID NO:47. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or more (e.g., one, two, three, or all) SEQ ID NO:44, SEQ ID NO:45, SEQ ID NO:46, and SEQ ID NO:47.

    [0252] In some embodiments, Micrococcus luteus SK58 has a 16S RNA gene that is at least 90% identical to one or more (e.g., one, two, three, or all) of SEQ ID NO:48, SEQ ID NO:49, SEQ ID NO:50, and SEQ ID NO:51. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or more (e.g., one, two, three, or all) of SEQ ID NO:48, SEQ ID NO:49, SEQ ID NO:50, and SEQ ID NO:51.

    [0253] In some embodiments, Peptococcus saccharolyticus 51 has a 16S RNA gene that is at least 90% identical to one or both of SEQ ID NO:52 and SEQ ID NO:53. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or both of SEQ ID NO:52 and SEQ ID NO:53.

    [0254] In some embodiments, Prevotella oris F0302 has a 16S RNA gene that is at least 90% identical to one or more (e.g., one, two, three, or all) of SEQ ID NO:54, SEQ ID NO:55, SEQ ID NO:56, and SEQ ID NO:57. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or more (e.g., one, two, three, or all) of SEQ ID NO:54, SEQ ID NO:55, SEQ ID NO:56, and SEQ ID NO:57.

    [0255] In some embodiments, Staphylococcus aureus C-243 has a 16S RNA gene that is at least 90% identical to one or both of SEQ ID NO:77 and SEQ ID NO:78. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or both of SEQ ID NO:77 and SEQ ID NO:78.

    [0256] In some embodiments, Staphylococcus aureus MRSA252 has a 16S RNA gene that is at least 90% identical to one or more (e.g., one, two, three, four, five, or all) SEQ ID NO:79, SEQ ID NO:80, SEQ ID NO:81, SEQ ID NO:82, SEQ ID NO:83, and SEQ ID NO:84. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or more (e.g., one, two, three, four, five, or all) SEQ ID NO:79, SEQ ID NO:80, SEQ ID NO:81, SEQ ID NO:82, SEQ ID NO:83, and SEQ ID NO:84.

    [0257] In some embodiments, Staphylococcus aureus MSSA476 has a 16S RNA gene that is at least 90% identical to one or more (e.g., one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, or all) of SEQ ID NO:85, SEQ ID NO:86, SEQ ID NO:87, SEQ ID NO:88, SEQ ID NO:89. SEQ ID NO:90, SEQ ID NO:91, SEQ ID NO:92, SEQ ID NO:93, SEQ ID NO:94, SEQ ID NO:95, SEQ ID NO:96, and SEQ ID NO:97. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or more (e.g., one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, or all) of SEQ ID NO:85, SEQ ID NO:86, SEQ ID NO:87, SEQ ID NO:88, SEQ ID NO:89. SEQ ID NO:90, SEQ ID NO:91, SEQ ID NO:92, SEQ ID NO:93, SEQ ID NO:94, SEQ ID NO:95, SEQ ID NO:96, and SEQ ID NO:97.

    [0258] In some embodiments, Staphylococcus aureus MU3 has a 16S RNA gene that is at least 90% identical to one or more (e.g., one, two, three, four, five, six, or all) of SEQ ID NO:98, SEQ ID NO:99, SEQ ID NO:100, SEQ ID NO:101, SEQ ID NO:102, SEQ ID NO:103, and SEQ ID NO:104. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or more (e.g., one, two, three, four, five, six, or all) of SEQ ID NO:98, SEQ ID NO:99, SEQ ID NO:100, SEQ ID NO:101, SEQ ID NO:102, SEQ ID NO:103, and SEQ ID NO:104.

    [0259] In some embodiments, Staphylococcus aureus ACM 2434 has a 16S RNA gene that is at least 90% identical to one or more (e.g., one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, or all) of SEQ ID NO:58, SEQ ID NO:59, SEQ ID NO:60, SEQ ID NO:61, SEQ ID NO:62, SEQ ID NO:63, SEQ ID NO:64, SEQ ID NO:65, SEQ ID NO:66, SEQ ID NO:67, SEQ ID NO:68, SEQ ID NO:69, SEQ ID NO:70, SEQ ID NO:71, SEQ ID NO:72, SEQ ID NO:73, SEQ ID NO:74, SEQ ID NO:75, and SEQ ID NO:76. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or more (e.g., one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, or all) of SEQ ID NO:58, SEQ ID NO:59, SEQ ID NO:60, SEQ ID NO:61, SEQ ID NO:62, SEQ ID NO:63, SEQ ID NO:64, SEQ ID NO:65, SEQ ID NO:66, SEQ ID NO:67, SEQ ID NO:68, SEQ ID NO:69, SEQ ID NO:70, SEQ ID NO:71, SEQ ID NO:72, SEQ ID NO:73, SEQ ID NO:74, SEQ ID NO:75, and SEQ ID NO:76.

    [0260] In some embodiments, Staphylococcus caprae 143.22 has a 16S RNA gene that is at least 90% identical to one or both of SEQ ID NO:105 and SEQ ID NO:106. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or both of SEQ ID NO:105 and SEQ ID NO:106.

    [0261] In some embodiments, Staphylococcus caprae M23864 W1 has a 16S RNA gene that is at least 90% identical to one or more (e.g., one, two, three, or all) of SEQ ID NO:107, SEQ ID NO:108, SEQ ID NO:109, and SEQ ID NO:110. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or more (e.g., one, two, three, or all) of SEQ ID NO:107, SEQ ID NO:108, SEQ ID NO:109, and SEQ ID NO:110.

    [0262] In some embodiments, Staphylococcus cohnii CCS 85 has a 16S RNA gene that is at least 90% identical to SEQ ID NO:111. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to SEQ ID NO:111.

    [0263] In some embodiments, Staphylococcus devriesei KS SP60 has a 16S RNA gene that is at least 90% identical to SEQ ID NO:112. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to SEQ ID NO:112.

    [0264] In some embodiments, Staphylococcus epidermidis WHO 12 has a 16S RNA gene that is at least 90% identical to one or more (e.g., one, two, three, four, five, six, or all) of SEQ ID NO:113, SEQ ID NO:114, SEQ ID NO:115, SEQ ID NO:116, SEQ ID NO:117, SEQ ID NO:118, and SEQ ID NO:119. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or more (e.g., one, two, three, four, five, six, or all) of SEQ ID NO:113, SEQ ID NO:114, SEQ ID NO:115, SEQ ID NO:116, SEQ ID NO:117, SEQ ID NO:118, and SEQ ID NO:119.

    [0265] In some embodiments, Staphylococcus hominis DM 122 has a 16S RNA gene that is at least 90% identical to one or both of SEQ ID NO:120 and SEQ ID NO:121. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or both of SEQ ID NO:120 and SEQ ID NO:121.

    [0266] In some embodiments, Streptococcus mitis R 360 has a 16S RNA gene that is at least 90% identical to one or more (e.g., one, two, three, or all) of SEQ ID NO:122, SEQ ID NO:123, SEQ ID NO:124, and SEQ ID NO:125. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or more (e.g., one, two, three, or all) of SEQ ID NO:122, SEQ ID NO:123, SEQ ID NO:124, and SEQ ID NO:125.

    [0267] In some embodiments, Turicella otitidis 234/92 has a 16S RNA gene that is at least 90% identical to one or more (e.g., one, two, three, four, or all) SEQ ID NO:126, SEQ ID NO:127, SEQ ID NO:128, SEQ ID NO:129, and SEQ ID NO:130. For example, at least about 91%, about 91.5% about 92%, about 92.5%, about 93%, about 93.5%, about 94%, about 94.5%, about 95%, about 95.5%, about 96%, about 96.5%, about 97%, about 97.5%, about 98%, about 98.5%, about 99%, about 99.1%, about 99.2%, about 99.3%, about 99.4%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% identical to one or more (e.g., one, two, three, four, or all) SEQ ID NO:126, SEQ ID NO:127, SEQ ID NO:128, SEQ ID NO:129, and SEQ ID NO:130.

    [0268] In some embodiments, decreasing the population of an enriched (increased) bacterial strain can include administering a bacteriophage to the subject. See, for example, Sabino et al. Aliment Pharmacol Ther. 51(1):53-63, 2020. In some embodiments, decreasing the population of an enriched (increased) bacterial strain can include administering to the subject a composition comprising an effective amount of a bacterial strain (e.g., a bacterial strain selected from the group consisting of: Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, Streptococcus intermedius 393, and a combination thereof.

    [0269] In some embodiments, methods provided herein can include administering the composition that includes an effective amount of one or more bacterial strains to the subject at least once per day. For example, the composition can be administered two, three, four, or more times per day. In some embodiments, an effective amount of the bacterial strain is administered in one dose, e.g., once per day. In some embodiments, an effective amount of the bacterial strain is administered in more than one dose, e.g., more than once per day. In some embodiments, the method comprises administering the composition to the subject daily, every other day, every three days, or once a week.

    [0270] In some embodiments, an effective amount of a bacterial strain (e.g., Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, Streptococcus intermedius 393, or a combination thereof) in a composition described herein can include at least about 1×10.sup.3 CFUs of the bacterial strain. For example, an effective amount of a bacterial strain can be at least about 1×10.sup.3, about 1×10.sup.4, about 1×10.sup.5, about 1×10.sup.6, about 1×10.sup.7, about 1×10.sup.8, about 1×10.sup.9, about 1×10.sup.10, about 1×10.sup.11, about 1×10.sup.12, about 1×10.sup.13, or about 1×10.sup.14 CFUs of the bacterial strain. In some embodiments, the effective amount of a bacterial strain in a composition described herein comprises about 1×10.sup.3 to about 1×10.sup.15 CFUs of the bacterial strain (e.g., about 1×10.sup.3 to about 1×10.sup.6, about 1×10.sup.3 to about 1×10.sup.8, about 1×10.sup.3 to about 1×10.sup.10, about 1×10.sup.3 to about 1×10.sup.12, about 1×10.sup.3 to about 1×10.sup.14, about 1×10.sup.7 to about 1×10.sup.12, about 1×10.sup.13 to about 1×10.sup.15, about 1×10.sup.11 to about 1×10.sup.15, about 1×10.sup.9 to about 1×10.sup.15, about 1×10.sup.7 to about 1×10.sup.15, or about 1×10.sup.5 to about 1×10.sup.15 CFUs of the bacterial strain).

    [0271] In some embodiments, methods provided herein can include administering a composition comprising a bacterial strain as described herein in combination with one or more other treatments of atopic dermatits and/or in combination with adjunct therapies such as a therapeutic agent to inflammation. The composition comprising a bacterial strain and any other treatments and/or adjunct therapies can be administered together (e.g., in the same formulation), or the composition comprising the bacterial strain can be administered concurrently with, prior to, or subsequent to, the one or more other treatments or adjunct therapies.

    [0272] In some embodiments, the treatment of atopic dermatits and/or adjunct therapy administered in combination with a composition comprising a bacterial strain as described herein comprises vitamin D, an antihistamine, a corticosteroid, a calcineurin inhibitor, an immunosuppressant, a phosphodiesterase-4 inhibitor, an anti-interleukin-4 receptor (IL-4Rα) antibody, an antibiotic, phototherapy, or a combination thereof. In some embodiments, the corticosteroid comprises hydrocortisone, clobetasol propionate, betamethasone dipropionate, halobetasol propionate, diflorasone diacetate, fluocinonide, halcinonide, amcinonide, desoximetasone, triamcinolone acetonide, mometasone furoate, fluticasone propionate, betamethasone dipropionate, halometasone, fluocinolone acetonide, hydrocortisone valerate, hydrocortisone butyrate, flurandrenolide, triamcinolone acetonide, mometasone furoate, fluticasone propionate, desonide, fluocinolone acetonide, hydrocortisone valerate, alclometasone dipropionate, triamcinolone acetonide, fluocinolone acetonide, desonide, or a combination thereof. In some embodiments, the treatment of atopic dermatits and/or adjunct therapy agent comprises diphenhydramine, tacrolimus, pimecrolimus, cyclosporine A, methotrexate, interferon gamma, mycophenolate mofetil, azathioprine, crisaborole, dupilumab, or a combination thereof.

    [0273] In some embodiments, a prebiotic and/or probiotic can be administered in combination with a composition comprising a bacterial strain as described herein. Non-limiting examples of a probiotic include one of more of Bifidobacteria (e.g., B. animalis, B. breve, B. lactis, B. longum, B. longum, or B. infantis), Lactobacillus (e.g., L. acidophilus, L. reuteri, L. bulgaricus, L. lactis, L. casei, L. rhamnosus, L. plantarum, L. paracasei, or L. delbreuckii/bulgaricus), Saccharomyces boulardii, E. coli Nissle 1917, and Streptococcus thermophiles. Non-limiting examples of a prebiotic include a fructooligosaccharide (e.g., oligofructose, inulin, or an inulin-type fructan), a galactooligosaccharide, an amino acid, or an alcohol. See, for example, Ramirez-Farias et al. (2008. Br. J Nutr. 4:1-10) and Pool-Zobel and Sauer (2007. J Nutr. 137:2580-2584).

    [0274] In some embodiments, an effective amount of the treatment of atopic dermatits and/or adjunct therapy is administered in combination with a composition comprising a bacterial strain as described herein.

    [0275] In some embodiments, methods provided herein can include monitoring the subject after treatment with a composition described herein to determine if one or more symptoms have been alleviated, if the severity of one or more symptoms has been reduced, or if progression of the disease has been delayed or inhibited in the subject. There are numerous scores and clinical markers that can be utilized to assess the efficacy of administering a composition that includes bacterial strain as described herein in treating atopic dermatitis. Non-limiting examples of clinical scores that can be used to the efficacy of administering a composition that includes bacterial strain as described herein include the Eczema Area and Severity Index (EAST), Scoring Atopic Dermatitis (SCORAD), and Itch Numeric Rating Scale (NRS). Non-limiting examples of biomarkers include soluble CD30, serum interleukin-31 (IL-31), serum Th2 chemokines, serum CCL17, serum CCL22, and serum CCL27 (see, e.g., Eichenfield et al. J Am Acad Dermatol. 2014 February; 70(2): 338-351). In some embodiments, an improvement in one or more of the above indexes or biomarkers after administering a bacterial strain, or a composition thereof, as described herein to the subject indicates treatment of the atopic dermatitis.

    [0276] In some embodiments, compositions provided herein can include one or more excipients and can be formulated for any of a number of delivery systems suitable for administration to a subject (e.g., probiotic or LBP delivery systems). Non-limiting examples of an excipient include a buffering agent, a diluent, a preservative, a stabilizer, a binding agent, a filler, a lubricant, a dispersion enhancer, a disintegrant, a lubricant, a disintegrant, a wetting agent, a glidant, a flavoring agent, a sweetener, and a coloring agent. For example, in some embodiments, tablets or capsules can be prepared by conventional means with excipients such as binding agents, fillers, lubricants, disintegrants, or wetting agents. In some embodiments, topical compositions can be prepared by conventional means with excipients. Any of the compositions described herein can be administered to a subject to treat atopic dermatitis as described herein.

    [0277] In some embodiments, a composition as described herein can be formulated for oral delivery. In some embodiments, the composition can be formulated as a tablet, a chewable tablet, a capsule, a stick pack, a powder, effervescent powder, or a liquid. In some embodiments, a composition can include coated beads that contain the bacterial strain. In some embodiments, a powder comprising the bacterial strain can be suspended or dissolved in a drinkable liquid such as water for administration. In some embodiments, the composition is a solid composition.

    [0278] In some embodiments, a composition described herein can be formulated for various immediate and controlled release profiles of the bacterial strain. For example, a controlled release formulation can include a controlled release coating disposed over the bacterial strain. In some embodiments, the controlled release coating is an enteric coating, a semi-enteric coating, a delayed release coating, or a pulsed release coating. In some embodiments, a coating can be suitable if it provides an appropriate lag in active release (i.e., release of the bacterial strain). For example, in some embodiments, the composition can be formulated as a tablet that includes a coating (e.g., an enteric coating).

    [0279] In some embodiments, the composition can be formulated for topical delivery. In some embodiments, the composition can be in the form of a paste, gel, cream, spray, suppository, mousse, emollient, ointment, foam, or suspension.

    [0280] In some embodiments, the bacterial strain in the composition is a culture of a single strain of organism. In some embodiments, the composition comprises a bacterial strain that is isolated. In some embodiments, the bacterial strain is isolated and cultured in vitro to increase the number or concentration of the bacterial strain. Increasing the number or concentration of the bacterial strain can be useful, for example, to enhance the efficacy of a composition comprising the bacterial strain.

    [0281] In some embodiments, an effective amount of the bacterial strain in a composition described herein comprises at least about 1×10.sup.3 CFU of the bacterial strain. For example, at least about 1×10.sup.3, about 1×10.sup.4, about 1×10.sup.5, about 1×10.sup.6, about 1×10.sup.7, about 1×10.sup.8, about 1×10.sup.9, about 1×10.sup.10, about 1×10.sup.11, about 1×10.sup.12, about 1×10.sup.13, or about 1×10.sup.14 CFUs of the bacterial strain. In some embodiments, the effective amount of a bacterial strain in a composition described herein comprises about 1×10.sup.3 to about 1×10.sup.15 CFUs of the bacterial strain. For example, about 1×10.sup.3 to about 1×10.sup.6, about 1×10.sup.3 to about 1×10.sup.8, about 1×10.sup.3 to about 1×10.sup.10, about 1×10.sup.3 to about 1×10.sup.12, about 1×10.sup.3 to about 1×10.sup.14, about 1×10.sup.7 to about 1×10.sup.12, about 1×10.sup.13 to about 1×10.sup.15, about 1×10.sup.11 to about 1×10.sup.15, about 1×10.sup.9 to about 1×10.sup.15, about 1×10.sup.7 to about 1×10.sup.15, or about 1×10.sup.5 to about 1×10.sup.15 CFUs of the bacterial strain.

    [0282] In some embodiments, the composition can include one or more biologically pure strains (e.g., two or more, three or more, four or more, five or more, six or more, or seven bacterial strains). For example, the composition can include biologically pure Bacteroides eggerthii 1 2 48FAA, biologically pure Brevundimonas nasdae W1-2B, biologically pure Capnocytophaga sputigena 4, biologically pure Moraxella sp. LMG 5131, biologically pure Neisseria elongata ATCC 29315, biologically pure Staphylococcus felis GD521, biologically pure Staphylococcus sciuri SC116, biologically pure Streptococcus intermedius 393, or any combination thereof.

    [0283] In some embodiments, the composition is a solid composition that includes at least 1×10.sup.3 CFUs of a bacterial strain (e.g., a biologically pure strain) and one or more excipients. Identifying characteristics of suitable strains, including homology to 16S rRNA sequences are described above.

    [0284] In some embodiments, each member of the same bacterial strain has a 16S rRNA gene sequence with at least about 90%, about 91%, about 92%, about 93%, about 94%, about 95%, about 96%, about 97%, about 98%, about 99%, about 99.5%, about 99.6%, about 99.7%, about 99.8%, or about 99.9% sequence identity to the 16S rRNA gene sequence of each other member of the same bacterial strain.

    [0285] In some embodiments, a bacterial strain in a composition described herein is preserved. Methods for preserving bacterial strains can include lyophilization and cryopreservation, optionally in the presence of a protectant. Non-limiting examples of protectants include sucrose, inulin, and glycerol. In some embodiments, a composition can include a lyophilized or cryopreserved bacterial strain such as Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, Streptococcus intermedius 393, or a combination thereof, and an optional protectant.

    [0286] In some embodiments, wherein the bacterial strain is a combination of two or more of: Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, and Streptococcus intermedius 393 one or more of Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, and Streptococcus intermedius 393 are lyophilized or cryopreserved.

    [0287] In some embodiments, the composition is a live bacterial product (LBP). In some embodiments, the bacterial strain in the composition is viable. The viable bacterial strain may be, for example, cryopreserved and/or lyophilized. In some embodiments, a composition for delivery of live bacterial strains (e.g., Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, Streptococcus intermedius 393, or a combination thereof), can be formulated to maintain viability of the bacterial strain. In some embodiments, the composition comprises elements that protect the bacterial strain from the acidic environment of the stomach (e.g., an enteric coating).

    [0288] In some embodiments, wherein the bacterial strain is a combination of two or more of: Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, and Streptococcus intermedius 393 one or more of Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, and Streptococcus intermedius 393 are viable.

    [0289] In some embodiments, the bacterial strain in the composition can be non-viable. In some embodiments, the non-viable bacterial strain is heat-killed, irradiated, or lysed.

    [0290] In some embodiments, wherein the bacterial strain is a combination of two or more of: Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, and Streptococcus intermedius 393 one or more of Brevundimonas nasdae W1-2B, Capnocytophaga sputigena 4, Moraxella sp. LMG 5131, Neisseria elongata ATCC 29315, Staphylococcus felis GD521, Staphylococcus sciuri SC116, and Streptococcus intermedius 393 are non-viable (e.g., heat-killed, irradiated, or lysed).

    [0291] In some embodiments, the bacterial strain as described herein may be used in prophylactic applications. For example, in a prophylactic application, a bacterial strain or a composition described herein can be administered to a subject susceptible to, or otherwise at risk of, a particular disease in an amount that is sufficient to at least partially reduce the risk of developing a disease. One of ordinary skill in the art will appreciate that the precise amounts of the bacterial strain administered may depend on a number of subject specific factors such as the subject's state of health and/or weight.

    [0292] Also provided herein are methods for identifying a subject as having atopic dermatitis that include: (a) identifying a subject having a sample that has: (i) an increased level of one or more (e.g., two or more, three or more, four or more, five or more, six or more, seven or more, eight or more, nine or more, ten or more, eleven or more, twelve or more, thirteen or more, fourteen or more, fifteen or more, sixteen or more, or seventeen) bacterial species selected from: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of one or more (e.g., two or more, three or more, four or more, five or more, six or more, or seven) bacterial species selected from: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius; as having atopic dermatitis; or (b) identifying a subject having a sample that does not have: (i) an increased level of one or more (e.g., two or more, three or more, four or more, five or more, six or more, seven or more, eight or more, nine or more, ten or more, eleven or more, twelve or more, thirteen or more, fourteen or more, fifteen or more, sixteen or more, or seventeen) bacterial species selected from: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; or (ii) a decreased level of one or more (e.g., two or more, three or more, four or more, five or more, six or more, or seven) bacterial species selected from: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius; as not having atopic dermatitis.

    [0293] Also provided are methods for diagnosing a subject as having atopic dermatitis that include: (a) diagnosing a subject having a sample that has: (i) an increased level of one or more (e.g., two or more, three or more, four or more, five or more, six or more, seven or more, eight or more, nine or more, ten or more, eleven or more, twelve or more, thirteen or more, fourteen or more, fifteen or more, sixteen or more, or seventeen) bacterial species selected from: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of one or more (e.g., two or more, three or more, four or more, five or more, six or more, or seven) bacterial species selected from: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius; as having atopic dermatitis; or (b) diagnosing a subject having a sample that does not have: (i) an increased level of one or more (e.g., two or more, three or more, four or more, five or more, six or more, seven or more, eight or more, nine or more, ten or more, eleven or more, twelve or more, thirteen or more, fourteen or more, fifteen or more, sixteen or more, or seventeen) bacterial species selected from: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; or (ii) a decreased level of one or more (e.g., two or more, three or more, four or more, five or more, six or more, or seven) bacterial species selected from: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius; as not having atopic dermatitis.

    [0294] Also provided herein are methods of treating atopic dermatitis in a subject that include: (a) administering an atopic dermatitis therapy to a subject determined to have a sample that has: (i) an increased level of one or more (e.g., two or more, three or more, four or more, five or more, six or more, seven or more, eight or more, nine or more, ten or more, eleven or more, twelve or more, thirteen or more, fourteen or more, fifteen or more, sixteen or more, or seventeen) of: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium. striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of one or more (e.g., two or more, three or more, four or more, five or more, six or more, or seven) of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius; or (b) not administering an atopic dermatitis therapy to a subject determined not to have a sample that has: (i) an increased level of one or more (e.g., two or more, three or more, four or more, five or more, six or more, seven or more, eight or more, nine or more, ten or more, eleven or more, twelve or more, thirteen or more, fourteen or more, fifteen or more, sixteen or more, or seventeen) of: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of one or more (e.g., two or more, three or more, four or more, five or more, six or more, or seven) of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius.

    [0295] Also provided herein are methods of treating atopic dermatitis in a subject, the method comprising: (a) administering a composition comprising an effective amount of a bacterial species selected from the group consisting of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius, and a combination thereof, as a monotherapy, or in conjunction with an atopic dermatitis therapy, to a subject determined to have a sample that has: (i) an increased level of one or more (e.g., two or more, three or more, four or more, five or more, six or more, seven or more, eight or more, nine or more, ten or more, eleven or more, twelve or more, thirteen or more, fourteen or more, fifteen or more, sixteen or more, or seventeen) of: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of one or more (e.g., two or more, three or more, four or more, five or more, six or more, or seven) of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius; or (b) not administering a composition comprising an effective amount of a bacterial species selected from the group consisting of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius, and a combination thereof, to a subject determined not to have a sample that has: (i) an increased level of one or more (e.g., two or more, three or more, four or more, five or more, six or more, seven or more, eight or more, nine or more, ten or more, eleven or more, twelve or more, thirteen or more, fourteen or more, fifteen or more, sixteen or more, or seventeen) of: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of one or more (e.g., two or more, three or more, four or more, five or more, six or more, or seven) of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella, Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius.

    [0296] Some embodiments of these methods include detecting the level of one or more bacterial species in the sample from the subject. In some embodiments, the level of Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, or Turicella otitidis is increased in comparison to the same bacterial species in a reference (control) sample.

    [0297] In some embodiments, the method comprises determining that the sample has: (i) an increased level of two or more of: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of two or more of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius.

    [0298] In some embodiments, the method comprises determining that the sample has: (i) an increased level of three or more of: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of two or more of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius.

    [0299] In some embodiments, the method comprises determining that the sample has: (i) an increased level of four or more of: Corynebacterium genitalium, Corynebacterium matruchotii, Corynebacterium.striatum, Corynebacterium tuberculostearicum, Finegoldia magna, Gordonia terrae, Micrococcus luteus, Peptococcus saccharolyticus, Prevotella oris, Staphylococcus aureus, Staphylococcus caprae, Staphylococcus cohnii, Staphylococcus devriesei, Staphylococcus epidermidis, Staphylococcus hominis, Streptococcus mitis, and Turicella otitidis; and/or (ii) a decreased level of two or more of: Brevundimonas nasdae, Capnocytophaga sputigena, Moraxella sp., Neisseria elongata, Staphylococcus felis, Staphylococcus sciuri, and Streptococcus intermedius.

    [0300] The invention will be further described in the following examples, which do not limit the scope of the invention described in the claims.

    EXAMPLES

    Example 1. Identification of Bacterial Strains Associated with Atopic Dermatitis

    [0301] A multiple-technology meta-analysis (MTMA) approach was applied to datasets, which led to the identification of strains unique to atopic dermatitis. To overcome challenges of comparing clinical variables across datasets from multiple institutes, a controlled vocabulary of hierarchically organized terms and manually re-annotated metadata from public datasets using this vocabulary was created. FIG. 8 provides the details regarding the cohorts, datasets, and contrasts analyzed to identify differentially abundant (DA) taxa correlating with disease progression. Statistical analysis of each dataset was performed using the workflow described in FIG. 1. Strain-level annotation was achieved using StrainSelect, a database containing sequence information of bacterial and archaeal strains connected to genome identifiers, which facilitated comparative analysis of taxa abundances at a strain-level across datasets

    Methods

    Procurement of Raw Data and Metadata Curation

    [0302] Fastq/Fasta files and metadata were procured from public repositories. Metadata stored with raw data, such as NCBI's Runlnfo table associated with the SRA Run Selector, and/or metadata published in tables in the primary text or supplementary files of the publication, were retrieved and manually re-annotated using a controlled vocabulary of hierarchically organized terms. An in-house database was created to store all study-related data and facilitate appropriate metadata annotation of all datasets via manual curation. Clinical metadata was stored in this database as a series of label:value pairs attached to the biospecimen from which the data files were generated.

    Processing, Strain Annotation and Statistical Analyses of Raw Data

    [0303] 16S rRNA Sequencing Datasets (16S-NGS and 16S-Sanger)

    [0304] For NGS datasets, paired-end reads were merged and aligned to the StrainSelect database version 2014 (SS14) using USEARCH (usearch_global) (see, Edgar. Bioinformatics 26, 2460-2461 (2010)). All sequences matching a unique strain at an identity ≥99% were assigned a strain-level annotation. To ensure specificity of these strain matches, a difference of ≥0.25% between the identity of the best match and the second best match was required e.g., 99.75 vs. 99.5. StrainSelect is a repository of strain identifiers obtained from gene sequencing, genome sequencing, draft genomes, and metagenomic assemblies of known prokaryotic strains. Distinct strain matches counted to generate strain-level abundances. Remaining sequences were quality-filtered, chimera-filtered and clustered at ≥97% similarity via UPARSE (Allali et al. doi:10.1186/s12866-017-1101-8) to generated de-novo OTUs. OTU abundances were generated by aligning and counting all non-strain sequences against OTU representatives.

    [0305] Downstream of a 5% prevalence filter, DESeq2 (Wood and Salzberg. Genome Biol. 15, R46 (2014)) was used to calculate significant differences in isolated analysis across all bins (OTUs and strains) and adjusted p-values were determined with the Benjamini-Hochberg correction. Significant results were determined as adjusted p-values <0.05. Log 2 fold change and standard error were calculated via DESeq2 and applied to subsequent analyses.

    Multi-Technology Meta-Analysis

    [0306] Log 2 fold change and standard errors pertaining to per-dataset statistical results in each disease area were integrated in MTMA using a Random effects model (REM), generated using the metafor R package. Only bins with strain-level annotations in each dataset, and only those strains observed in at least two datasets, post prevalence filtering, were retained for REM analysis. False discovery correction for REM generated p-values was achieved using the Benjamini-Hochberg method. Differences are deemed to be statistically significant at adjusted (Benjamini-Hochberg corrected) p-values <0.05 in both isolated dataset analysis and MTMA.

    Results

    [0307] Identification of differentially abundant strains across cohorts from a simple comparison of isolated datasets was limited as less than 80% of the strains were detected across all datasets (FIG. 2, top panel). Further, while isolated analysis identified 15 strains as significantly differentially abundant, these strain-disease associations were cohort-specific (FIG. 2, middle panel) and in many cases not supported in trend, i.e., a strain being consistently associated with either homeostasis or dysbiosis, across cohorts (FIG. 3; light-shaded rows). Variation was also observed in the magnitude of differential abundance derived from the cohorts (log 2 fold change; FIG. 4). 13 of the 27 significantly differentially abundant strains were Staphylococci, confirming the known association of species in this genera, particularly the deleterious effect of S. aureus with atopic dermatitis. Interestingly, while previous work identified S. epidermidis and S. hominis species to be associated with a healthy skin microbiome.sup.32, we identified specific strains within these species that were enriched (increased) in AD and hence potentially disease promoting, highlighting that strain-identity even within species may be important to the role played by a bacterium in disease.

    [0308] Strain-level results were integrated from isolated analyses in each disease via MTMA as described in FIG. 1. Significant associations were identified only when the direction of differential abundance of the strain was supported by multiple datasets (FIG. 5; blue strains connected to MTMA nodes via thick-solid lines). The associations in isolated analyses that were not supported in trend by other datasets were not significant by MTMA (FIG. 5; dark-green circles). Several strain-disease associations identified in MTMA were not identified in isolated analyses of the datasets (FIG. 5; purple dots). Thus, MTMA corroborates findings from isolated analysis if supported across datasets but eliminates if discordant, and MTMA identifies novel disease-strain associations that isolated analyses failed to detect.

    [0309] Enrichment (increase) of disease-associated bacteria in atopic dermatitis (FIG. 6), many of which were classified as belonging to pathogenic species, indicated that colonization by pathogens as opposed to a lack of homeostasis could be a key driver (FIG. 7).

    [0310] MTMA can enable synthesis of existing knowledge of the microbiome, and the approach as shown in FIG. 1 can facilitate comparative analysis of taxa abundances at a strain-level across datasets generated with different DNA-profiling technologies. Harnessing the MTMA framework, with its ability to integrate datasets across DNA-profiling technologies and pinpoint specific strains, can allow for identification of robust microbiome modulators of disease by integrating the growing body of evidence on the role played by microbiome in disease.

    Other Embodiments

    [0311] It is to be understood that while the invention has been described in conjunction with the detailed description thereof, the foregoing description is intended to illustrate and not limit the scope of the invention which is defined by the scope of the appended claims. Other aspects, advantages, and modification are within the scope of the following claims.