Disclosed herein are methods of eliciting an immune response against a polyomavirus (for example, BKV serotype I (BKV-I), BKV serotype II (BKV-II), BKV serotype III (BKV-III) and/or BKV serotype IV (BKV-IV)) and methods of treating or inhibiting polyomavirus-associated pathology (such as polyomavirus-associated nephropathy, BKV-associated hemorrhagic cystitis, or JC virus-associated progressive multifocal leukoencephalopathy; PML). Further disclosed are immunogenic compositions of use in the disclosed methods. Also disclosed are methods of selecting an organ transplant donor and/or recipient including detecting whether the prospective donor and/or recipient has BKV serotype-specific (such as BKV serotype IV-specific) neutralizing antibodies.

Nucleic acid molecules and compositions comprising one or more nucleotide sequences that encode a consensus Merkel Cell Polyomavirus (MCV) T antigen. Immunomodulatory methods and methods of inducing an immune response against MCV are disclosed. Method of treating infection by MCV and methods of treating or preventing Merkel Cell Carcinoma associated with MCV are disclosed. Modified consensus MCV T antigens are disclosed.

Provided herein are compositions and methods related to a multivirus-specific T cell immunotherapy.

Nucleic acid molecules and compositions comprising one or more nucleotide sequences that encode a consensus Merkel Cell Polyomavirus (MCV) T antigen. Immunomodulatory methods and methods of inducing an immune response against MCV are disclosed. Method of treating infection by MCV and methods of treating or preventing Merkel Cell Carcinoma associated with MCV are disclosed. Modified consensus MCV T antigens are disclosed.

Provided herein are methods and compositions related to polyomavirus epitopes useful in the treatment of cancer or a polyomavirus infection.

The present invention relates to an anti-inflammatory, skin-regenerative, whitening, antioxidant, or wound-healing composition containing a culture medium of adipose-derived stem cell-T (ADSC-T) cells as an active ingredient, in which T-antigen is introduced into an adipose-derived stem cell. The culture medium of ADSC-T cells, according to the present invention, has remarkable effects for treating or inhibiting inflammation by alleviating atopic dermatitis, which is an autoimmune disease, and inhibiting NF-κB activities through an increase of an Iκbα expression. Additionally, the culture medium, according to the present invention, exhibits: excellent skin regenerative effects by having effects of enhancing skin collagen elasticity and reducing wounds, in a collagen culture; excellent skin whitening effects by inhibiting tyrosinase activities and melanin production; and excellent anti-oxidation effects by inhibiting DPPH radical activities. Furthermore, the present invention has remarkable wound-healing effects by enhancing cell mobility of fibroblast, and is thus useful for anti-inflammation, skin-regeneration, whitening, anti-oxidation, or healing wounds.

The present invention relates to the field of vaccination or immunization, in particular therapeutic vaccination, and diagnosis. Pharmaceutical compositions and kits capable of eliciting a protective immune response against polyoma virus JC (JCV) are disclosed, which may be used e.g., for therapy or for prevention of progressive multifocal leukoencephalopathy (PML) and/or progressive multifocal leukoencephalopathy-immune reconstitution inflammatory syndrome (PML-IRIS). Individuals in danger of such PML or PML-IRIS may, e.g., be immuno-compromised or immunosuppressed patients or patients having an autoimmune disease eligible for immunosuppressive treatment. The invention also relates to compositions comprising at least one CD4+ epitope of a JCV protein and to therapeutic, prophylactic and diagnostic uses thereof.

Disclosed herein are methods of eliciting an immune response against a polyomavirus (for example, BKV serotype I (BKV-I), BKV serotype II (BKV-II), BKV serotype III (BKV-III) and/or BKV serotype IV (BKV-IV)) and methods of treating or inhibiting polyomavirus-associated pathology (such as polyomavirus-associated nephropathy, BKV-associated hemorrhagic cystitis, or JC virus-associated progressive multifocal leukoencephalopathy; PML). Further disclosed are immunogenic compositions of use in the disclosed methods. Also disclosed are methods of selecting an organ transplant donor and/or recipient including detecting whether the prospective donor and/or recipient has BKV serotype-specific (such as BKV serotype IV-specific) neutralizing antibodies.

The subject matter disclosed herein is generally directed to epitopes that specifically bind to subject specific HLA class I molecules in MCC. The epitope identified is specific for MCC and is encoded for in the Merkel Cell Polyomavirus (MCPyV) large T antigen (MCPyV LT).

Provided is an isolated mammalian negative strand RNA virus, metapneumovirus (MPV), within the sub-family Pneumoviridae, of the family Paramyxoviridae. Also provided are isolated mammalian negative strand RNA viruses identifiable as phylogenetically corresponding or relating to the genus Metapneumovirus and components thereof. In particular, provided is a mammalian MPV, subgroups and variants thereof. Also provided are genomic nucleotide sequences of different isolates of mammalian MPV, in particular, human MPV. Disclosed is the use of the sequence information of different isolates of mammalian MPV for diagnostic and therapeutic methods. Provided are nucleotide sequences encoding the genome of an MPV or a portion thereof, including both mammalian and avian MPV. Further described are chimeric or recombinant viruses encoded by the nucleotide sequences and chimeric and recombinant mammalian MPV that comprise one or more non-native or heterologous sequences. Also provided are vaccine formulations comprising mammalian or avian MPV, including recombinant and chimeric forms thereof. The vaccine preparations encompass multivalent vaccines, including bivalent and trivalent vaccine preparations.