The disclosure relates to compositions and methods for treating infection, allergic reactions, colitis, IBD, contact dermatitis, psoriasis, atopic dermatitis, graft vs. host disease and disorders and other disease and disorders comprising dendritic cell activation as well as compositions and method to improve allergen sensitization.

Provided are methods of treatments with combinations or compositions containing a soluble hyaluronidase, such as a polymer-modified hyaluronidase, and an immune checkpoint inhibitor treating cancers, including solid and non-solid tumors. The combinations and compositions also are provided.

The present invention provides, among other things, methods of formulating nucleic acid-containing nanoparticles with an enzyme to afford efficient delivery of payload to a cell or tissue of interest via subcutaneous administration. In some embodiments, the present invention provides a process in which mRNA-loaded lipid nanoparticles are co-mixed with various amounts of hyaluronidase and administered via subcutaneous administration. The resulting payload can be efficiently delivered to the liver and other organs or tissues of a treated subject.

The invention relates to stable formulations of antibodies against human programmed death receptor PD-1, or antigen binding fragments thereof and a PH20 variant or fragment thereof. The invention further provides methods for treating various cancers with formulations of the invention. In some embodiments of the methods of the invention, the formulations are administered to a subject by subcutaneous administration.

Methods, compositions, and kits are provided for rapidly analyzing microbial growth and/or number in a plurality of water-in-oil emulsion droplets.

Modified PH20 hyaluronidase polypeptides, including modified polypeptides that exhibit increased stability and/or increased activity, are provided. Also provided are compositions and formulations and uses thereof.

Modified PH20 hyaluronidase polypeptides, including modified polypeptides that exhibit increased stability and/or increased activity, are provided. Also provided are compositions and formulations and uses thereof.

This disclosure provides a modified oncolytic virus that can contain modifications in the viral genome and exogenous nucleic acids coding for proteins. The modified oncolytic virus can be utilized as a platform vector for systemic delivery.

The invention belongs to the field of cosmetic biotechnology, and specifically relates to an Enterobacter that degrades hyaluronic acid and a cultivation method and application thereof. The Enterobacter sp. CGJ001 of the present invention was deposited in the China General Microbiological Culture Collection Center on Oct. 10, 2019, and the preservation number is CGMCC NO. 18661. The Enterobacter strain can efficiently produce hyaluronidase, and can be used in the process of preparing low molecular hyaluronic acid and oligomeric hyaluronic acid from high molecular hyaluronic acid. The enzyme has high specificity towards hyaluronic acid, excellent thermal stability and pH stability, and is suitable for large-scale industrial application. Thus it can replace the traditional hyaluronidase extracted from expensive animal tissues. There should be broad application prospects in the fields of medicine and cosmetics.

The present invention is related to the field of protein engineering technology which increases the enzymatic activity and thermal stability of human hyaluronidase which is an enzyme that hydrolyzes hyaluronic acid; and more particularly to hyaluronidase PH20 variants or fragments thereof, which comprise one or more amino acid residue substitutions in the region corresponding to the alpha-helix region and its linker region in the amino acid sequence of wild-type PH20 of SEQ ID NO: 1 and in which one or more amino acid residues at the N-terminus and/or the C-terminus are selectively cleaved additionally.

Specifically, the present invention relates to PH20 variants or fragments thereof, which comprise one or more amino acid residue substitutions selected from the group consisting of T341A, T341C, T341G, S343E, M345T, K349E, L353A, L354I, N356E and I361T in wild-type PH20 having the amino acid sequence of SEQ ID NO: 1, and additionally comprise the substitution of amino acids located in the alpha-helix 8 region and/or a linker region between alpha-helix 7 and alpha-helix 8 in the amino acid sequence of wild-type PH20, and in which one or more amino acids located at the N-terminal and C-terminal regions are deleted.