This disclosure relates to methods of promoting immune responses against HIV and compositions related thereto. In certain embodiments, this disclosure relates to methods of vaccinating for HIV comprising administering to the subject a priming composition followed by a boosting composition. In certain embodiments, the priming composition comprises a recombinant virus such as recombinant MVA that encodes an Env protein of HIV or segment thereof. In certain embodiments, the boosting composition comprises a trimeric cyclically permuted gp120 chimeric protein reported herein or DNA encoding the same.

This disclosure relates to methods of promoting immune responses against HIV and compositions related thereto. In certain embodiments, this disclosure relates to methods of vaccinating for HIV comprising administering to the subject a priming composition followed by a boosting composition. In certain embodiments, the priming composition comprises a recombinant virus such as recombinant MVA that encodes an Env protein of HIV or segment thereof. In certain embodiments, the boosting composition comprises a trimeric cyclically permuted gp120 chimeric protein reported herein or DNA encoding the same.

The invention provides a method for obtaining a broadly neutralizing antibody (bNab), including screening memory B cell cultures from a donor PBMC sample for neutralization activity against a plurality of HIV-1 species, cloning a memory B cell that exhibits broad neutralization activity; and rescuing a monoclonal antibody from that memory B cell culture. The resultant monoclonal antibodies are characterized by their ability to selectively bind epitopes from the Env proteins in native or monomeric form, as well as to inhibit infection of HIV-1 species from a plurality of clades. Compositions containing human monoclonal anti-HIV antibodies used for prophylaxis, diagnosis and treatment of HIV infection are provided. Methods for generating such antibodies by immunization using epitopes from conserved regions within the variable loops of gp120 are provided. Immunogens for generating anti-HIV1 bNAbs are also provided. Furthermore, methods for vaccination using suitable epitopes are provided.

The invention provides a method for obtaining a broadly neutralizing antibody (bNab), including screening memory B cell cultures from a donor PBMC sample for neutralization activity against a plurality of HIV-1 species, cloning a memory B cell that exhibits broad neutralization activity; and rescuing a monoclonal antibody from that memory B cell culture. The resultant monoclonal antibodies are characterized by their ability to selectively bind epitopes from the Env proteins in native or monomeric form, as well as to inhibit infection of HIV-1 species from a plurality of clades. Compositions containing human monoclonal anti-HIV antibodies used for prophylaxis, diagnosis and treatment of HIV infection are provided. Methods for generating such antibodies by immunization using epitopes from conserved regions within the variable loops of gp120 are provided. Immunogens for generating anti-HIV1 bNAbs are also provided. Furthermore, methods for vaccination using suitable epitopes are provided.

Disclosed herein are methods, compositions, and kits useful to enhance an immune response against an antigen and to improve vaccine efficacy. The disclosed methods, compositions, and kits may be utilized to improve vaccine immunogenicity and enhance immune protection following subsequent antigen challenges. In some embodiments, the methods include co-administering a blocker of the IFN-I pathway with an antigen that is used as part of a vaccine, such as a viral vaccine.

Disclosed herein are methods, compositions, and kits useful to enhance an immune response against an antigen and to improve vaccine efficacy. The disclosed methods, compositions, and kits may be utilized to improve vaccine immunogenicity and enhance immune protection following subsequent antigen challenges. In some embodiments, the methods include co-administering a blocker of the IFN-I pathway with an antigen that is used as part of a vaccine, such as a viral vaccine.

The present invention relates generally to immunization and immunotherapy for the treatment or prevention of HIV. In particular, the methods include in vivo and/or ex vivo enrichment of HIV-specific CD4+ T cells.

The present invention relates generally to immunization and immunotherapy for the treatment or prevention of HIV. In particular, the methods include in vivo and/or ex vivo enrichment of HIV-specific CD4+ T cells.

Immunogenic compositions containing a human immunodeficiency virus (HIV) gp140 protein, sorbitol, polysorbate 20, and histidine buffer are described. The described immunogenic compositions are advantageous in that they are stable at refrigerated temperature for extended periods of time, and are compatible with an adjuvant. Also described are methods for storing the immunogenic compositions.

Immunogenic compositions containing a human immunodeficiency virus (HIV) gp140 protein, sorbitol, polysorbate 20, and histidine buffer are described. The described immunogenic compositions are advantageous in that they are stable at refrigerated temperature for extended periods of time, and are compatible with an adjuvant. Also described are methods for storing the immunogenic compositions.