Compositions and methods of use are provided to boost a primed immune response to HIV. More specifically, the present invention relates to vaccine compositions comprising an HIV-protein boost or an MVA-expressed Env protein and methods of use. Exemplary HIV proteins for protein boosts include proteins such as gp120 proteins B.63521A11mutC and full-length single chain (FLSC), which has been modified to stabilize a CD4-induced Env structure. Exemplary MVAs expressing secreted Methods of administration and dosing regimens are also provided.

The present invention provides HIV-1 vaccine immunogens. Some of the immunogens contain a soluble gp140-derived protein that harbors a modified N-terminus of the HR1 region in gp41. Some of the immunogens contain an HIV-1 Env-derived trimer protein that is presented on a nanoparticle platform. The invention also provides methods of using the HIV-1 vaccine immunogens for eliciting an immune response or treating HIV infections.

Disclosed are compositions for generating an immune response against human immunodeficiency virus (HIV) and their methods of uses.

The present disclosure relates to recombinant rhesus cytomegalovirus (RhCMV) and human cytomegalovirus (HCMV) vectors encoding heterologous antigens, such as pathogen-specific antigens or tumor antigens, which may be used, for example, for the treatment or prevention of infectious disease or cancer. The recombinant RhCMV or HCMV vectors elicit and maintain high level cellular immune responses specific for the heterologous antigen while including deletions in one or more genes essential or augmenting for CMV replication, dissemination or spread.

The subject invention pertains to materials and methods for detecting, preventing and treating retroviral infections in humans and other animals susceptible to infection by retrovirus. It has been discovered that FIV can be transmitted from cats to humans and that the FIV can infect human cells in vivo and that antibodies generated by the infected person cross-react with HIV antigens. Thus, the methods and compositions of the subject invention can be used to detect, prevent and treat FIV infection in humans and other non-feline animals that are susceptible to FIV infection. The methods and compositions of the invention can also be used to prevent and treat infection by HIV in humans.

The invention features stabilized human immunodeficiency virus (HIV) envelope (Env) trimers. The invention also features vaccines, nucleic acids, and vectors to deliver and/or facilitate production of the stabilized HIV Env trimers. In addition, the invention features methods of making and using the stabilized HIV Env trimers of the invention.

Disclosed herein are methods and compositions for treating a subject having or at risk of having an HIV infection. Disclosed herein are peptide immunogens and nucleic acids that have epitopes in which mutations are most likely to have deleterious effects on the HIV virus. An algorithm is disclosed for the selection of the epitopes based on the HIV fitness landscape, and it accounts for the effect of coupling mutations.

Immunogens comprising a recombinant HIV-1 Env ectodomain trimer stabilized in a prefusion closed conformation and methods of their use and production are disclosed. In several embodiments, the immunogen can be used to elicit an immune response to HIV-1 in a subject.

Provided herein are HIV-1-specific transforming antibodies (tAbs) and antigens that are recognized by HIV-1-specific tAbs. Also provided herein are methods for screening and/or generating HIV-1-specific tAbs and uses of tAbs for prevention and treatment of HIV-1 infection.

The present application relates to a lipopeptide for potently inhibiting HIV, a derivative thereof, or a pharmaceutical composition thereof, and use thereof. The lipopeptide is the following a) or b): a) a lipopeptide formed by linking a polypeptide having an antiviral activity to a lipophilic compound linked to the carboxyl-terminus of the polypeptide; or b) a lipopeptide formed by linking a polypeptide having an antiviral activity to a terminal protecting group and a lipophilic compound linked to the carboxyl-terminus of the polypeptide, wherein the terminal protecting group is an amino-terminal protecting group and/or a carboxyl-terminal protecting group, the polypeptide has a sequence of 28 amino acid residues, corresponding to amino acids at positions of 127-154 of the sequence of gp41 from HIV-1 strain HXB2. The anti-HIV activity of the lipopeptide of the present invention is higher than that of T-20 by several thousands of times or even tens of thousands of times, and is also significantly higher than that of the anti-HIV lipopeptides such as C34-Chol, LP-19 and the like.