Abstract: Provided herein are HIV immunogens and uses thereof for generating an immune response in a subject. This disclosure further provides a method for treating or preventing a human immunodeficiency type I (HIV-I) infection in a subject using the disclosed HIV immunogens and/or antibodies generated by any of the methods disclosed herein.

Abstract: Embodiments of the present invention are directed to compositions and methods for anti-HIV (anti-CD4 binding site) potent VRC01-like (PVL) antibodies targeted to gp120 having an amino acid substitution at a residue in the anti-CD4 binding site PVL antibody that is equivalent to Phe43 in CD4, these antibodies having improved potency and breadth.

Abstract: This disclosure provides novel broadly neutralizing anti-HIV antibodies and antigen-binding fragments thereof. The disclosed anti-HIV antibodies exhibited improved biophysical properties, e.g, reduced polyreactivity, prolonged half-life, while retaining broad and potent neutralization activity. The anti-HIV bNAb variants as disclosed constitute a novel therapeutic strategy for treating and/or preventing HIV infection.

Abstract: Embodiments of the present invention are directed to compositions and methods for anti-HIV (anti-CD4 binding site) broadly neutralizing antibodies having improved potency and breadth for neutralizing a range of HIV strains. Combinations of broadly neutralizing antibodies can also improve potency over a single antibody composition.

Abstract: Embodiments of the present invention are directed to compositions and methods for anti-HIV (anti-CD4 binding site) potent VRC01-like (PVL) antibodies targeted to gp120 having an amino acid substitution at a residue in the anti-CD4 binding site PVL antibody that is equivalent to Phe43 in CD4, these antibodies having improved potency and breadth.

Abstract: Embodiments of the present invention are directed to compositions and methods for anti-HIV (anti-CD4 binding site) potent VRC01-like (PVL) antibodies targeted to gp120 having an amino acid substitution at a residue in the anti-CD4 binding site PVL antibody that is equivalent to Phe43 in CD4, these antibodies having improved potency and breadth.

Abstract: Embodiments of the present invention are directed to compositions and methods for anti-HIV (anti-CD4 binding site) potent VRC01-like (PVL) antibodies targeted to gp120 having an amino acid substitution at a residue in the anti-CD4 binding site PVL antibody that is equivalent to Phe43 in CD4, these antibodies having improved potency and breadth.

Abstract: Embodiments of the present invention are directed to compositions and methods for anti-HIV (anti-CD4 binding site) broadly neutralizing antibodies having improved potency and breadth for neutralizing a range of HIV strains. Combinations of broadly neutralizing antibodies can also improve potency over a single antibody composition.

Abstract: Embodiments of the present invention are directed to compositions and methods for anti-HIV (anti-CD4 binding site) broadly neutralizing antibodies having improved potency and breadth for neutralizing a range of HIV strains. Combinations of broadly neutralizing antibodies can also improve potency over a single antibody composition.

Abstract: An anti-HIV-1 spike composition includes a first anti-HIV-1 antibody Fab and a second anti-HIV-1 antibody Fab linked by a DNA or protein linker molecule to form a crosslinked homo-diFab or hetero-diFab having improved viral potency and neutralization. The anti-HIV-1 antibody Fabs include anti-gp120 CD4, anti-gp120 V1V2, anti-gp120 V3, and anti-gp41.

Abstract: Broad neutralizing antibodies directed to epitopes of Human Immunodeficiency Virus, or HIV, especially the preparation and use of highly neutralizing antibodies directed to HIV gp120 envelope protein, in the vaccination and treatment of HIV-infected patients.

Abstract: Embodiments of the present invention are directed to compositions and methods for anti-HIV (anti-CD4 binding site) broadly neutralizing antibodies having improved potency and breadth for neutralizing a range of HIV strains. Combinations of broadly neutralizing antibodies can also improve potency over a single antibody composition.

Abstract: Methods are provided for the enhanced delivery of an antigen to antigen-presenting cells such as dendritic cells by conjugating an antigen to a molecule targeted to an endocytic receptor on the dendritic cell, such as DEC-205. The molecule targeted to an endocytic receptor may be a natural ligand to the receptor or an antibody thereto. Conjugates may be covalent complexes or single-chain polypeptides. Together with modulation of the maturation of the dendritic cell, an enhanced immune response or tolerizing immune response may be generated to the antigen. In addition, conjugate molecules including single-chain polypeptides are provided which contain at least an endocytic receptor-binding molecule and a preselected antigen.