Compositions and vaccine combinations containing synthetic HIV envelope proteins, and methods for inducing an immune response against human immunodeficiency virus (HIV) infection are described. Viral expression vectors encoding the synthetic HIV envelope proteins can be used in the vaccine combinations to induce immune responses against HIV and provide improved protective immunity against HIV.

The present invention relates to a VC-CAR molecule and a use thereof in removing HIV-1 infected cells. The VC-CAR molecule is characterized by linking an HIV-1 broad-spectrum neutralizing antibody VRC01 sourced scFv sequence and an intracellular domain sequence of a conventional CAR molecule which are respectively used as extracellular and intracellular domains. A T cell modified by the VC-CAR molecule can be specifically activated and secrete a great number of cytotoxicity-related cytokines, so that lysis of a target cell can be powerfully mediated, and it can be better used for anti-infection adoptive immunotherapy.

The present invention relates to anti-HW antibodies. Also disclosed are related methods and compositions. HIV causes acquired immunodeficiency syndrome (AIDS), a condition in humans characterized by clinical features including wasting syndromes, central nervous system degeneration and profound immuno suppression that results in life-threatening opportunistic infections and malignancies. Since its discovery in 1981, HIV type 1 (HIV-1) has led to the death of at least 25 million people worldwide.

A method for determining HIV-1 co-receptor tropism in an HIV-infected patient includes preparing an HIV-1 envelope protein coding sequence from a sample, introducing the HIV-1 envelope protein coding sequence into a first expression construct using yeast homologous recombination, and using the first expression construct in a cell to cell fusion assay to determine HIV-1 co-receptor tropism.

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 may be 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 is a composition including a recombinant nucleic acid sequence that encodes an antibody to an HIV antigen. Also disclosed herein is a method of generating a synthetic antibody in a subject by administering the composition to the subject. The disclosure also provides a method of preventing and/or treating an HIV infection in a subject using said composition and method of generation.

Compositions and vaccine combinations containing synthetic HIV envelope proteins, and methods for inducing an immune response against human immunodeficiency virus (HIV) infection are described. Viral expression vectors encoding the synthetic HIV envelope proteins can be used in the vaccine combinations to induce immune responses against HIV and provide improved protective immunity against HIV.

The present invention relates to broadly neutralizing anti-HIV-1 antibodies and isolated antigens. Also disclosed are related methods and compositions.

The present invention provides nucleic acid, vectors, viruses, and recombinant cells comprising triple-stranded structures, such as those resulting from central initiation and termination of HIV-1 reverse transcription at the center of HIV-1 linear DNA genomes. These triplex structures can act as a cis-determinant of HIV-1 DNA nuclear import, allowing infection of non-dividing target cells. In one aspect, the presence of the DNA triplex sequence in an HIV vector strongly stimulates gene transfer in hematopoietic stem cells. The invention also provides methods of using these triplex structures for making recombinant cells, as well as methods of using the recombinant cells to express proteins of interest both in vitro and in vivo.

The present invention relates to anti-HIV antibodies. Also disclosed are related methods and compositions. HIV causes acquired immunodeficiency syndrome (AIDS), a condition in humans characterized by clinical features including wasting syndromes, central nervous system degeneration and profound immunosuppression that results in life-threatening opportunistic infections and malignancies. Since its discovery in 1981, HIV type 1 (HIV-1) has led to the death of at least 25 million people worldwide.