Peptide-based molecules for modulating car expression or accessibility and uses thereof
10736971 ยท 2020-08-11
Assignee
Inventors
Cpc classification
C12N2710/10311
CHEMISTRY; METALLURGY
C07K14/70596
CHEMISTRY; METALLURGY
A61K38/16
HUMAN NECESSITIES
C07K2319/10
CHEMISTRY; METALLURGY
G01N33/566
PHYSICS
C07K2319/70
CHEMISTRY; METALLURGY
International classification
A61K38/16
HUMAN NECESSITIES
C07K14/705
CHEMISTRY; METALLURGY
G01N33/566
PHYSICS
Abstract
Peptide-based molecules for modulating expression or accessibility to the coxsackievirus and adenovirus receptor (CAR) are disclosed. Cell-permeable peptide-based molecules having a PDZ-decoy domain or PDZ-binding domain are used to modulate the expression or accessibility of CAR molecules, thereby affecting the ability of viral molecules, or molecules containing viral sequences or proteins able to bind CAR, to enter host cells.
Claims
1. A method of decreasing apical surface localization of coxsackievirus and adenovirus receptors (CAR) in a target cell comprising the step of: exposing the target cell to a composition comprising a peptide, wherein said peptide comprises (i) a first peptide portion having a first peptide comprising SEQ ID NO: 2 and (ii) a second peptide portion having a second peptide sequence comprising SEQ ID NO: 32, thereby decreasing apical surface localization of CAR in the target cell.
2. The method of claim 1, wherein the second peptide portion having the first peptide sequence consisting of SEQ ID NO: 2 and the second peptide sequence consisting of 32.
3. A method of reducing CAR-mediated viral infection comprising the step of: decreasing apical surface localization of CAR in an infected target cell, wherein the decreasing apical surface localization of CAR is achieved by exposing the infected target cell to a composition comprising a peptide, wherein said peptide comprises (i) a first peptide portion having a first peptide SEQ ID NO: 2 and (ii) a second peptide portion having a second peptide sequence comprising SEQ ID NO: 32, thereby decreasing apical surface localization of CAR in the target cell.
4. A method of protecting a target cell from CAR mediated viral infection comprising the step of: decreasing apical surface localization of CAR in a target cell to be protected, wherein the decreasing apical surface localization of CAR is achieved by (i) exposing the target cell to be protected to a composition comprising a first peptide, wherein said first peptide comprises (i) a first peptide portion having a first peptide sequence comprising SEQ ID NO: 2 and (ii) a second peptide portion having a second peptide sequence comprising SEQ ID NO: 32, thereby decreasing apical surface localization of CAR in the target cell and thereby protecting the target cell from CAR mediated viral infection.
5. A method of protecting a target cell from CAR mediated viral infection of claim 4, wherein the first peptide consisting of SEQ ID NO: 2 and the second peptide sequence consisting of SEQ ID NO: 32, thereby modulating an apical surface localization of CAR in the target cell.
6. A composition for modulating CAR expression on cells, the composition comprising: a peptide that comprises first and second portions, the first portion (i) comprising a cell penetrating peptide and the second portion (ii), the second portion (ii) comprising the peptide of SEQ ID NO: 32.
7. A composition of claim 6, comprising a peptide, wherein said peptide comprises (i) a first peptide portion having a first peptide sequence comprising SEQ ID NO: 2 and (ii) a second peptide portion having a second peptide sequence comprising SEQ ID NO: 32.
8. The composition according to claim 6, wherein (i) is a peptide having a sequence that has a sequence consisting of SEQ ID NO: 2.
9. The composition according to claim 6, wherein (ii) is a peptide having a sequence that has a sequence consisting of SEQ ID NO: 32.
10. The composition according to claim 6, wherein (i) is a peptide having a sequence that has a sequence consign of SEQ ID NO: 2 and (ii) a second peptide portion having a second peptide sequence consisting SEQ ID NO: 32.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The above, as well as other advantages of the present invention, will become readily apparent to those skilled in the art from the following detailed description when considered in the light of the accompanying drawings in which:
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SEQUENCE LISTING
(21) The nucleic and amino acid sequences listed in the accompanying sequence listing are shown using standard letter abbreviations for nucleotide bases, and three letter code of amino acids, as defined in 37 C.F.R. 1.822.
(22) Only one strand of each nucleic acid sequence may be shown, but the complementary strand is understood as included by any reference to the displayed strand. In the accompanying sequence listing: SEQ ID NO: 1 shows the amino acid sequence of TAT. SEQ ID NO: 2 shows the amino acid sequence of AP. SEQ ID NO: 3 shows the amino acid sequence of poly arginine. SED ID NO: 4 shows the amino acid sequence of Sim2. SED ID NO: 5 shows the amino acid sequence of VP22 SED ID NO: 6 shows the amino acid sequence of pVEC SED ID NO: 7 shows the amino acid sequence of pISL SED ID NO: 8 shows the amino acid sequence of hCT SED ID NO: 9 shows the amino acid sequence of LL-37 SED ID NO: 10 shows the amino acid sequence of Mouse PrP (1-28) SED ID NO: 11 shows the amino acid sequence of Transportan (TP) SED ID NO: 12 shows the amino acid sequence of TP10 SED ID NO: 13 shows the amino acid sequence of Arg 1 SED ID NO: 14 shows the amino acid sequence of MAP SED ID NO: 15 shows the amino acid sequence of Pep-1 SED ID NO: 16 shows the amino acid sequence of Pep-2 SED ID NO: 17 shows the amino acid sequence of MPG SED ID NO: 18 shows the amino acid sequence of KALA SED ID NO: 19 shows the amino acid sequence of ppTG1 SED ID NO: 20 shows the amino acid sequence of ppTG20 SEQ ID NO: 21 shows the amino acid sequence of ESAM. SEQ ID NO: 22 shows the amino acid sequence of Slo1a. SEQ ID NO: 23 shows the amino acid sequence of Slo1b. SEQ ID NO: 24 shows the amino acid sequence of Slo1c. SEQ ID NO: 25 shows the amino acid sequence of CAR.sup.EX7. SEQ ID NO: 26 shows the amino acid sequence of Nephrin. SEQ ID NO: 27 shows the amino acid sequence of BAI-1. SEQ ID NO: 28 shows the amino acid sequence of CAR.sup.EX8. SEQ ID NO: 29 shows the amino acid sequence of Ad9 E4Orf1. SEQ ID NO: 30 shows the amino acid sequence of NET1. SEQ ID NO: 31 shows the amino acid sequence of Beta1AR. SEQ ID NO: 32 shows the amino acid sequence of HPV E6. SEQ ID NO: 33 shows the amino acid sequence of RapGEP. SEQ ID NO: 34 shows the amino acid sequence of Influenza A virus NS1. SEQ ID NO: 35 shows the amino acid sequence of JAM4. SEQ ID NO: 36 shows the amino acid sequence of TAT-ESAM. SEQ ID NO: 37 shows the amino acid sequence of TAT-CAR.sup.EX7 SEQ ID NO: 38 shows the amino acid sequence of TAT-CAR.sup.EX8. SEQ ID NO: 39 shows the amino acid sequence of TAT-NET1. SEQ ID NO: 40 shows the amino acid sequence of TAT-HPV E6. SEQ ID NO: 41 shows the amino acid sequence of control peptide CAR.sup.EX7-AA. SEQ ID NO: 42 shows the amino acid sequence of control peptide CAR.sup.EX8-AA. SEQ ID NO: 43 shows the amino acid sequence of control peptide TAT-CAR.sup.EX7-AA. SEQ ID NO: 44 shows the amino acid sequence of control peptide TAT-CAR.sup.EX8-AA. SEQ ID NO: 45 shows the amino acid sequence of MAGI-1-PDZ1. SEQ ID NO: 46 shows the amino acid sequence of MAGI-1-PDZ3. SEQ ID NO: 47 shows the amino acid sequence of TAT-MAGI-1-PDZ1. SEQ ID NO: 48 shows the amino acid sequence of TAT-MAGI-1-PDZ3.
(23) The Sequence Listing material in the 16,105 byte ASCII text file named 1-25003-seq1.txt, created on Jul. 16, 2018, is hereby incorporated-by-reference in its entirety.
DETAILED DESCRIPTION
A. In General
(24) The embodiments herein described are not intended to be exhaustive or to limit the invention to the precise forms disclosed. They are chosen and described to explain the principles of the invention and the application of the method to practical uses so that others skilled in the art may practice the invention.
(25) As used in the specification and the appended claims, the singular forms a, an and the include plural referents unless the context clearly dictates otherwise. Thus, for example, a cell may refer to a population of cells or reference to a cell-permeable peptides may include both reference to a single cell-permeable peptide and reference to a plurality of cell-permeable peptides. Likewise, the use of a plural noun is to be construed as including the singular thereof, unless the context clearly dictates otherwise.
(26) It should be understood that every maximum numerical limitation given throughout this specification includes every lower numerical limitation, as if such lower numerical limitations were expressly written herein. Every minimum numerical limitation given throughout this specification will include every higher numerical limitation, as if such higher numerical limitations were expressly written herein. Every numerical range given throughout this specification will include every narrower numerical range that falls within such broader numerical range, as if such narrower numerical ranges were all expressly written herein.
(27) Ranges can be expressed herein as from about one particular value, and/or to about another particular value. When values are expressed as approximations, by use of the antecedent about, it will be understood that the particular value forms another embodiment.
(28) The use of the word or in this description is used conjunctively to mean one of the series, or any combination thereof, unless the context clearly dictates otherwise.
(29) All publications and documents cited herein are incorporated to the extent permitted by law. In case of any conflict, this disclosure prevails. The citation of any document is not to be construed as an admission that it is prior art with respect to the present disclosure.
B. Terms and Abbreviations
(30) Unless otherwise noted, technical terms are used according to conventional usage. Definitions of common terms in molecular biology may be found in Benjamin Lewin, Genes V., published by Oxford University Press, 1994 (ISBN 0-19-854287-9); Kendre et al. (eds.), The Encyclopedia of Molecular Biology, published by Blackwell Science Ltd., 1994 (ISBN 0-632-2182-9); and Robert A. Meyers (ed.), Molecular Biology and Biotechnology: a Comprehensive Desk Reference, published by VCH Publishers, Inc. 1995 (ISBN 1-56081-569-8).
Terms
(31) Transmembrane protein refers to a protein that has a portion of its protein sequence projecting outside of a cell (i.e. the extracellular domain), a portion of a protein running through the lipid membrane (i.e. the transmembrane domain), and/or a portion of a protein projecting into the cytoplasm inside of a cell (i.e. the cytoplasmic domain).
(32) Polarized cell refers to a differentiated cell that has distinct regions which are capable of functioning in distinct ways. For example, epithelial cells have a portion thereof external to the body and exposed to the external world, e.g., the surface of skin (i.e. the apical surface) and a portion internal to the body (i.e. the basolateral surface). The lung airway epithelium is composed of polarized cells. For example, breathing allows air to enter the lung and is in contact with the apical surface. However, interstitial fluid (e.g. blood) is in contact with the basolateral surface. Neurons also have polarity with an axon leading to the cell body and neurites leading to connections with the axons of other neurons creating a polarized network of excitatory cells.
(33) CAR and Coxsackievirus and Adenovirus Receptor refer to a cell-cell adhesion protein and viral receptor. There are two transmembrane isoforms of CAR, i.e., CAR.sup.EX7 and CAR.sup.EX8. Such isoforms differ in the extreme C-termini and although both function as viral receptors, their normal functions differ as cellular adhesion proteins.
(34) CAR.sup.EX7 refers to a basolateral adhesion protein able to traffic PDZ-domain-containing proteins to cell-cell junctions. In polarized cells, the extracellular domain of CAR.sup.EX7 is not exposed to the outside world but rather the basolateral interstitial fluid between cells. CAR.sup.EX7 is responsible for holding two adjacent cells together and causing PDZ-domain containing proteins to localize at basolateral cell-cell junctions. CAR.sup.EX7 functions to traffic, drive, or guide MAGI-1 to cell junctions.
(35) CAR.sup.EX8 refers to an apical adhesion protein. In polarized epithelial cells, the extracellular domain of CAR.sup.EX8 is exposed to the external world or air exposed apical surface where it can come into contact with viruses transmitted via air (such as, e.g., via droplets like those produced by a sneeze). CAR.sup.EX8 is an adhesion protein for white blood cells, such as, e.g., neutrophils or macrophages or T cells, which transmigrate from inside the body to outside the body (i.e., to the apical surface) to kill and/or eliminate microbes and/or other molecules (such as, e.g., pollen, dirt, etc.) which enter the airway and/or other epithelial surfaces. CAR.sup.EX8 is regulated by MAGI-1. For example, if CAR.sup.Ex8 binds to and/or interacts with the PDZ3 domain of MAGI-1, CAR.sup.Ex8 will be degraded or modified or retained within the cell and unable to reach the apical surface. Alternatively, if CAR.sup.EX8 binds to or interacts with the PDZ1 domain of MAGI-1, CAR.sup.EX8 is not degraded and can reach the apical surface of polarized cells
(36) PDZ domain, a term derived from the names of the first three proteins identified to contain the domain: Post-Synaptic Density-95/Drosophila Disc Large Tumor Suppressor/Zonula Occludens 1 protein (i.e. PSD-95/DIg1/ZO-1), refers to an approximately 90 amino acid protein-based sequences that can fold into an independent region of the overall protein. Such protein-based sequences may mediate protein-protein interactions by binding to a PDZ-binding domain. Only a subset of proteins within a cell may contain PDZ domains.
(37) PDZ-binding domain refers to a 4 amino acid motif often found at a terminus of proteins that can interact with PDZ domains. Only a subset of proteins within a cell may contain PDZ-binding domains.
(38) PDZ1-binding peptide may refer to any peptide comprising both (i) a first peptide portion having substantial homology with a first peptide sequence selected from the group: SEQ ID NOs: 1-20 and (ii) a second peptide portion having substantial homology with a second peptide sequence selected from the group: SEQ ID NOs: 28-35. The two peptide portions that make up the PDZ1-binding peptide may have sequence separating them or may be continuous. The two peptide portions may be presented in any order. In certain embodiments, the first peptide portion having substantial homology with a first peptide sequence selected from the group: SEQ ID NOs: 1-20 will be closer to the 5 end than the second peptide portion having substantial homology with a second peptide sequence selected from the group: SEQ ID NOs: 28-35. In certain embodiments, the PDZ1-binding peptide will have substantial homology with a peptide sequence selected from the group: SEQ ID NO: 39 and 40.
(39) PDZ3-binding peptide may refer to any peptide comprising both (i) a first peptide portion having substantial homology with a first peptide sequence selected from the group: SEQ ID NOs: 1-20 and (ii) a second peptide portion having substantial homology with a second peptide sequence selected from the group: SEQ ID NOs: 21-29. The two peptide portions that make up the PDZ3-binding peptide may have sequence separating them or may be continuous. The two peptide portions may be presented in any order. In certain embodiments, the first peptide portion having substantial homology with the first peptide sequence selected from the group: SEQ ID NOs: 1-20 will be closer to the 5 end than the second peptide portion having substantial homology with the second peptide sequence selected from the group: SEQ ID NOs: 21-29. In certain embodiments, the PDZ3-binding peptide will have substantial homology with a peptide sequence selected from the group: SEQ ID NO: 36, 37, and 38.
(40) PDZ1-decoy may refer to any peptide comprising both (i) a first peptide portion having substantial homology with a first peptide sequence selected from the group: SEQ ID NOs: 1-20 and (ii) a peptide portion having substantial homology with SEQ ID NO: 45. The two peptide portions that make up the PDZ1-decoy may have sequence separating them or may be continuous. The two peptide portions may be presented in any order. In certain embodiments, the first peptide portion having substantial homology with the first peptide sequence selected from the group: SEQ ID NOs: 1-20 will be closer to the 5 end than the second peptide portion having substantial homology with SEQ ID NO: 45. In certain embodiments, the PDZ1-decoy will have substantial homology with SEQ ID NO: 47.
(41) PDZ3-decoy may refer to any peptide comprising both (i) a first peptide portion having substantial homology with a first peptide sequence selected from the group: SEQ ID NOs: 1-20 and (ii) a second peptide portion having substantial homology with SEQ ID NO: 46. The two peptide portions that make up the PDZ3-decoy may have sequence separating them or may be continuous. The two peptide portions may be presented in any order. In certain embodiments, the first peptide portion having substantial homology with the first peptide sequence selected from the group of: SEQ ID NOs: 1-20 will be closer to the 5 end than the second peptide portion having substantial homology with SEQ ID NO: 46. In certain embodiments, the PDZ3-decoy will have substantial homology with SEQ ID NO: 48.
(42) MAGI-1 refers to a membrane-associated guanylate kinase with an inverted domain structure-1, also known as Membrane Associated Guanylate Kinase, WW and PDZ Domain Containing 1, BAI1-Associated Protein 1, and Atrophin-1-Interacting Protein 3. MAGI-1 is a large protein with several types of protein-protein interaction domains including, e.g., up to six PDZ domains, two WW domains, and a guanylate kinase domain, that altogether can act as a scaffold in the cell to bring several interacting proteins together and create a signaling center, wherein each domain can interact with a different protein that has a unique function and can affect the other proteins being held in close proximity by binding other MAGI-1 domains, theoretically including up to at least nine simultaneous interactions. MAGI-1 is alternatively spliced such that it may include all domains and/or only some domains. PDZ1 (SEQ ID NO: 45) and PDZ3 (SEQ ID NO: 46) are of particular relevance to this disclosure.
(43) Substantially homolgous or substantial homology means a degree of sequence homology to any one of the peptides having the amino acid sequences set forth in SEQ ID NOs: 1-48 where the degree of sequence homology is preferably at least 70%, most preferably at least 80%, and even more preferably at least 90% or even 95%. It also means that one or more particular amino acid in any given peptide may be modified as is known in the art without exceeding the scope of the invention. For example, one or more amino acids may be replaced with artificial amino acids or the peptide could be conjugated to a marker molecule or dye.
Abbreviations
(44) CAR: Coxsackievirus and adenovirus receptor; qPCR: quantitative polymerase chain reaction; MDCK: Madin-Darby canine kidney epithelial cells; AdV5-B-Gal: adenovirus beta galactose delivery vector; Vg: viral genome; MG 132: a proteasome inhibitor; CHX: cyclohexamide; DAPI: a nucleic acid stain; kDa: kilodalton; AdV5-Cre; adenovirus cre recombinase delivery vector; tdT: tdTomato transmembrane red fluorescent protein (used in the context of transgenic tdTomato-LoxP-GFP genetically altered mice); GFP: green fluorescent protein; RT-PCR: reverse transcriptase polymerase chain reaction; HIV-TAT-CPP: HIV derived transactivator of transcription cell penetrating peptide; TAMRA: 5-Carboxytetramethylrhodamine red fluorescent dye; CHO: Chinese hamster ovary cells; ER: endoplasmic reticulum; TER: transepithelial resistance; Dox: doxycycline; FLAG: protein tag; PBS; phosphate buffered saline; AAV: adeno-associated virus; RIP: regulated intramembrane proteolysis; AdV: adenovirus, CPP: cell penetrating (permeable) peptide (see Table 2 for a non-exhaustive list of possible CPPs that can be used in accordance with the invention).
C. Description of Various Embodiments
(45) As described above, the primary receptor for Coxsackie B viruses, adenoviruses, and Swine Vesicular Disease Virus is the Coxsackie and adenovirus receptor (CAR). The abundance of CAR on a host cell surface is a major predictor of the susceptibility of host cells to adenoviruses, whether wild-type or as used as a gene therapy vector. Two opposing interactions within a single host cell scaffolding protein, membrane-associated guanylate kinase with inverted domain structure-1 (hereinafter MAGI-1), has provided the means to directly affect the amount of CAR accessible for viral infection both in vitro and in vivo.
(46) Firstly, disclosed is an approach to block the interaction between CAR.sup.EX8 and MAGI-1 by administering small, peptide-based molecules, which are less than 50 amino acids in length, that are cell permeable and that interact with the first (i.e., PDZ1) and/or third (i.e., PDZ3) PDZ domains of MAGI-1. In embodiments, disruption of the CAR.sup.EX8-PDZ1 interaction attenuates CAR.sup.EX8 intracellular and cell surface protein levels. In embodiments, disruption of the PDZ3 interaction potentiates CAR.sup.EX8 intracellular and cell surface protein levels. As shown in Table 1, a list of suitable, but not limiting, potential peptide-based potentiator and attenuator molecules are disclosed.
(47) Secondly, disclosed is an approach utilizing peptide-based molecules having decoy cell permeable MAGI-1 PDZ1 or PDZ3 domains. In embodiments, the individual decoy PDZ1 domain is able to bind CAR.sup.EX8, to sequester CAR.sup.Ex8 from interacting with full length endogenous MAGI-1, and to potentiate CAR.sup.EX8 intracellular and cell surface protein levels. In contrast, in embodiments, the individual decoy PDZ3 domain is able to bind CAR.sup.EX8, to sequester it from interacting with full length endogenous MAGI-1, and to hold CAR.sup.EX8 within the cell or cause CAR.sup.EX8 degradation. Thus, in embodiments, the individual PDZ3 domain attenuates CAR.sup.EX8 intracellular and cell surface protein levels.
(48) 1. Attenuators and Methods of Using the Same
(49) Small molecules that decrease CAR would be used as protection from or reduction of adenovirus (groups A, C-G), CAR binding adenoviruses from other species, group B Coxsackievirus infections, and Swine Vesicular Disease Virus. These small molecules could be applied proactively to protect susceptible populations or those entering a situation knowing they may be at risk of exposure (e.g. during an outbreak, during military training, healthcare providers, etc.), or could be applied after an infection has occurred to reduce the spread (e.g. within an individual or to others in the community) and burden of the disease.
(50) 2. Potentiators and Methods of Using the Same
(51) Small molecules that increase CAR would be used to potentiate or to increase recombinant adenovirus (groups A, C-G), CAR-binding adenoviruses from other species, such as, but not limited to, canine or gorilla, and group B Coxsackievirus infections. These small molecules could be applied proactively to enhance adenovirus and group B Coxsackievirus as gene therapy vectors or oncolytic viral therapy for genetic and acquired diseases such as, but not limited in any way to, cystic fibrosis, asthma, chronic obstructive pulmonary disease (COPD), and cancers such as glioblastoma or lung cancer. These small molecules could be applied proactively as adjuvants to enhance adenovirus and group B Coxsackievirus immunization strategies for cancer and infectious diseases such as, but not limited to, metastatic melanoma or ebolavirus. Increasing the availability of CAR with these molecules is expected to decrease viral inoculum dose and increase specificity of target tissue uptake.
(52) With regard to Table 1, PDZ-binding peptides described interact with MAGI-1 PDZ1 or PDZ3. In bold are the peptide sequences that are used in the examples that follow. Mutant control peptides may be created by replacing the last amino acid and 3 amino acids with alanine (i.e. . . . AXA).
(53) With regard to Table 1, it is noted that the TAT cell permeable portion of the peptide-based molecules is provided to facilitate entry of the bioactive PDZ domain or binding domain into target cells, such as, e.g., host cells. It is further noted that such cell permeable portion of the peptide based molecules could be any number of available cell permeable peptides and/or polypeptides sequences known to those of ordinary skill in the art, which include, but are not limited to, TAT, antennapedia protein, or Sim2, or SEQ ID NO: 1-20.
(54) In embodiments, the peptide-based molecules described herein are synthesized by standard commercially available procedures known to those of ordinary skill in the art. For example, such peptide-based molecules may be produced by standard methods known to those of ordinary skill in the art in peptide synthesizers, bacteria and/or eukaryotic cells such as, e.g., CHO cells. Moreover, PDZ domains may be produced according to methods known to those of ordinary skill in the art, such as, e.g., in bacteria and/or eukaryotic cells such as, e.g., CHO cells.
(55) In embodiments, the peptide-based molecules described herein may be administered to and/or contacted with a target cell or tissue, such as, e.g., a host cell or lungs. For example, to administer and/or contact such peptide-based molecules with a target cell or tissue, the peptide-based molecules may be diluted in isotonic solutions such as, e.g., standard saline, phosphate-buffered saline, or the like. The peptide-based molecules may then be administered systemically and/or topically. More specifically, the peptide-based molecules may be administered via inhalation, aerosolization, nebulization, injection and/or other standard methods such as, e.g., topical creams.
(56) It is expected that a single administration will have sufficient biological effect but readministration may be necessary depending on the application method or the desired result. For example, if there is an outbreak of wild-type adenovirus or Coxsackievirus, or other virus, multiple administrations may be required for full protection from viral infection. In contrast, to improve adenovirus and/or other virus-mediated gene therapy, a single administration may be sufficient for clinical efficacy.
(57) Additionally in further embodiments, the administering and/or contacting is effective to control, treat, prevent, and/or correct an adenovirus infection and/or a Coxsackie virus infection. As shown in Table 3 below, adenovirus pathogenesis is associated with various diseases. In embodiments, the methods described herein could be effective to treat and/or prevent at least some of such diseases.
(58) Small molecules that decrease CAR expression or accessibility would be used as protection from or reduction of adenovirus (groups A, C-G, see Table 3), CAR-binding adenoviruses from other species, group B Coxsackievirus infections, or Swine Vesicular Disease Virus. These small molecules could be applied proactively to protect susceptible populations or those entering a situation knowing they may be at risk of exposure (e.g. during an outbreak, during military training, healthcare providers, etc.), or could be applied after an infection has occurred to reduce the spread (e.g. within an individual or to others in the community) and burden of the disease.
(59) In embodiments, while both of CAR.sup.EX8 and CAR.sup.Ex7 can bind to and/or interact with PDZ3 of MAGI-1, if CAR.sup.EX8 does so, it will be degraded and/or modified and/or retained in the cell. However, if CAR.sup.Ex7 binds to and/or interacts with PDZ3 of MAGI-1, it may traffic, drive, and/or guide MAGI-1 to basolateral junctions. Without being bound by the theory, it is believed that such mechanism may: (1) maintain low levels of CAR.sup.EX8 in order to limit apical viral infection and inflammation by binding viruses or pro-inflammatory white blood cells, respectively; and/or (2) prevent MAGI-1 (and anything bound to and/or complexed therewith) from being trafficked to the apical surface.
(60) Further, several approaches to controlling, modulating, treating, and/or preventing viral infection and inflammation associated with and/or correlated to the level of CAR.sup.Ex8 at the apical surface of the epithelium have also been devised. In embodiments, peptide- and/or polypeptide-based molecules that are capable of modulating CAR expression on target cells are disclosed. More specifically, in embodiments, peptide- and/or polypeptide-based molecules that are capable of increasing and/or decreasing the level of CAR on cells, such as, e.g., host cells, are disclosed. Such peptide- and/or polypeptide-based molecules have been developed using two approaches to modulating the level of CAR, such as, e.g., the level of apical adenovirus receptor CAR.sup.EX8.
D. Examples
(61) The following non-limiting examples illustrate the methods and compositions of a selection of embodiments.
(62) MAGI-1 PDZ binding peptides (BP) can alter CAR.sup.EX8 apical protein levels and AdV infection. As shown in
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E. References
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F. Tables
(82) TABLE-US-00001 TABLE1 (singleletteraminoacidcode) Protein MAGI-1 SEQID (Gene) Sequence PDZdomain No PotentialPotentiators ESAM AQSQAGSLV 3 21 Slo1a(KCNMA1) QKYVQEERL 3 22 Slo1b(KCNMA1) QNRKEMVYR 3 23 Slo1c(KCNMA1) PIREVEDEC 3 24 CAR.sup.Ex7 AQSKDGSIV 3 25 Nephrin LPFELRGHLV 2,3 26 BAI-1 QDIIDLQTEV 3,4 27 CAR.sup.Ex8 YKTDGITVV 1,3 28 Ad9E4Orf1 PSVKIATLV 1,3 29 PotentialAttenuators NET1 GGKKKETLV 1 30 Beta1AR(ADRB1) PGFASESKV 1 31 HPVE6 SRTRRETQL 1 32 RapGEP DEDEQVSAV 0,1 33 InfluenzaA MARTARSKV 1,5 34 virusNS1 JAM4 QKVRNVTLV 1,4 35
(83) TABLE-US-00002 TABLE2 (singleletteraminoacidcode) Cell- penetrating SEQ peptide Sequence IDNO: Tat GRKKRRQRRRPPQ 1 AP/Penetratin RQIKIWFQNRRMKWKK 2 Poly-arginine RRRRRRRRR 3 Sim2 AKAARQAAR 4 VP22 DAATATRGRSAASRPTERPRAPARSASRPRRVD 5 pVEC LLIILRRRIRKQAHAHSK-amide 6 pISL RVIRVWFQNKRCKDKK-amide 7 hCT(9-32) LGTYTQDFNKFHTFPQTAIGVGAP 8 derived peptide LL-37 LLGDFFRKSKEKIGKEFKRIVQRIKDFLRNLVPRTES 9 MousePrP MANLGYWLLALFVTMWTDVGLCKKRPKP-amide 10 (1-28) Transportan GVVTLNSAGYLLGKINLKALAALAKKIL-amide 11 (TP) TP10 AGYLLGKINLKALAALAKKIL-amide 12 Arg11 RRRRRRRRRRR 13 MAP KLALKLALKALKAALKLA-amide 14 Pep-1 KETWWETWVVTEWSQPKKKRKV 15 Pep-2 KETWFETVVFTEWSQPKKKRKV 16 MPG GALFLGWLGAAGSTMGAPKKKRKV 17 KALA WEAKLAKALAKALAKHLAKALAKALKACEA 18 ppTG1 GLFKALLKLLKSLWKLLLKA 19 ppTG20 GLFRALLRLLRSLWRLLLRAS 20
(84) TABLE-US-00003 TABLE 3 Summary of human adenoviruses Subgroup Types Disease Receptor A 12, 18, 31 Respiratory CAR Meningoencephalitis B1 16, 21, 35, Respiratory, Cystitis CD46 50 B2 3, 7, 14 Pharyngo- DSG2 conjunctivitis B3 11 CD46, DSG2 B 34, 55 ? C 1, 2, 5, 6, Respiratory, CAR 57 Hepatitis D 8-10, 13, Keratoconjunctivitis CAR 15, 17, 19, 20, 22-30, 32, 33, 36-39, 42-49, 51, 53, 54, 56 E 4 Respiratory CAR F 40, 41 Gastroenteritis CAR G 52 Gastroenteritis CAR