The present invention discloses immunogenic compositions including recombinant peptides and proteins comprising human immunodeficiency viruses (HIV) antigens and immunogens, e.g., gp 120 protein peptides. In some aspects, the immunogenic composition comprises a secreted fusion protein comprising a soluble HIV viral antigen joined by in-frame fusion to a C-terminal portion of a collagen which is capable of self-trimerization to form a disulfide bond-linked trimeric fusion protein. In some aspects, the immunogenic compositions provided herein are useful for generating an immune response, e.g., for treating or preventing an HIV infection. In some aspects, the immunogenic compositions provided herein may be used in a vaccine composition, e.g., as part of a prophylactic and/or therapeutic vaccine. Also provided herein are methods for producing the recombinant peptides and proteins, prophylactic, therapeutic, and/or diagnostic methods, and related kits.

The present disclosure generally relates to, inter alia, to nucleic acid constructs encoding a modified enterovirus genome that is devoid of partial or complete nucleic acid sequences encoding viral structural proteins. The disclosure also provides compositions and methods useful for producing defective interfering particles (DIPs) of enteroviruses, and for the prevention and/or treatment of various health conditions such as immune diseases and viral infections.

The present disclosure generally relates to, inter alia, to nucleic acid constructs encoding a modified enterovirus genome that is devoid of partial or complete nucleic acid sequences encoding viral structural proteins. The disclosure also provides compositions and methods useful for producing defective interfering particles (DIPs) of enteroviruses, and for the prevention and/or treatment of various health conditions such as immune diseases and viral infections.

A recombinant BHV-1 oncolytic virus is provided comprising a BHV-1 mutant with enhanced cancer selectivity and/or enhance immunostimulatory activity as compared to wildtype BHV-1. The BHV-1 mutant is genetically modified to express one or more immunomodulatory molecules that induce an anti-tumor immune response. A method of generating the recombinant BHV-1 oncolytic virus is also provided.

A recombinant BHV-1 oncolytic virus is provided comprising a BHV-1 mutant with enhanced cancer selectivity and/or enhance immunostimulatory activity as compared to wildtype BHV-1. The BHV-1 mutant is genetically modified to express one or more immunomodulatory molecules that induce an anti-tumor immune response. A method of generating the recombinant BHV-1 oncolytic virus is also provided.

The present disclosure provides a replication-competent, recombinant oncolytic vaccinia virus (OVV) comprising one of more of a) a nucleotide sequence encoding a variant A33 polypeptide, b) a nucleotide sequence encoding a variant A34 polypeptide, and c) a nucleotide sequence encoding a variant B5 polypeptide, wherein the variant A33, variant A34, and variant B5 polypeptides comprise one or more amino acid substitutions that provide for enhanced virus spreading or enhanced EEV production as compared with a virus encoding a corresponding wild-type A33, A 34, and B5 polypeptide. The present disclosure also provides compositions comprising the OVV and use of the OVV or the composition for inducing oncolysis in an individual having a tumor.

The present disclosure provides a replication-competent, recombinant oncolytic vaccinia virus (OVV) comprising one of more of a) a nucleotide sequence encoding a variant A33 polypeptide, b) a nucleotide sequence encoding a variant A34 polypeptide, and c) a nucleotide sequence encoding a variant B5 polypeptide, wherein the variant A33, variant A34, and variant B5 polypeptides comprise one or more amino acid substitutions that provide for enhanced virus spreading or enhanced EEV production as compared with a virus encoding a corresponding wild-type A33, A 34, and B5 polypeptide. The present disclosure also provides compositions comprising the OVV and use of the OVV or the composition for inducing oncolysis in an individual having a tumor.

Disclosed in the present disclosure are a recombinant human papillomavirus vaccine composition and a use thereof. Compared with other combinations of antigens and adjuvants, the new vaccine composition provided in the present invention has a more beneficial immune effect.

Disclosed in the present disclosure are a recombinant human papillomavirus vaccine composition and a use thereof. Compared with other combinations of antigens and adjuvants, the new vaccine composition provided in the present invention has a more beneficial immune effect.

Compositions comprising nanoparticles, nanoplexes or virus comprising isolated nucleic acid comprising nucleic acid encoding a mammalian, and methods of using the compositions, are provided.