Abstract: The invention includes stable multimeric, particularly dimeric, forms of PSMA protein, compositions and kits containing dimeric PSMA protein as well as methods of producing, purifying and using these compositions. Such methods include methods for eliciting or enhancing an immune response to cells expressing PSMA, including methods of producing antibodies to dimeric PSMA, as well as methods of treating cancer, such as prostate cancer.

Abstract: This invention provides methods for eliciting an immune response in a subject comprising administering to the subject as part of a regimen (i) more than one dose of a nucleic acid prime, and (ii) more than one dose of a protein boost composition, wherein each dose of the nucleic acid prime is administered to the subject at a first predefined interval and each dose of the protein boost composition is administered to the subject at a second predefined interval, and wherein the protein boost composition comprises a prophylactically or therapeutically effective dose of (a) a trimeric HIV-1 gp140 protein complex, or (b) a superparamagnetic particle and a trimeric HIV-1 gp140 protein complex so affixed thereto as to permit recognition of the complex by a subject's immune system. The invention also provides methods for prophylactically or therapeutically treating HIV-1 infection in a subject.

Abstract: This invention provides a first composition comprising a pharmaceutically acceptable particle and a stable HIV-1 pre-fusion envelope glycoprotein trimeric complex operably affixed thereto. This invention further provides a second composition comprising (a) a pharmaceutically acceptable particle, (b) an antigen, and (c) an agent which is operably affixed to the particle and is specifically bound to the antigen, whereby the antigen is operably bound to the particle. Finally, this invention provides related nucleic acids, vectors, cells, compositions, production methods, and prophylactic and therapeutic methods.

Abstract: This invention provides formulations of the anti-HIV therapeutic, CD4-IgG2, that contain higher concentrations of the therapeutic than were previously prepared, are stable, and safe to administer. Methods for making high-concentration CD4-IgG2 formulations by first concentrating CD4-IgG2 to about 50 mg/ml in a buffer comprising about 6.7 mM histidine/2% maltose, pH 6.0, then lyophilizing the sample and reconstituting it to about 150 mg/ml in a buffer comprising about 20 mM histidine/6% maltose, pH 6.0, are provided. Such high-concentration CD4-IgG2 formulations are suitable for intravenous, subcutaneous and intramuscular delivery, the latter two routes being potentially useful for facilitating self-administration by HIV-infected individuals. This invention is also directed to methods of using the CD4-IgG2 formulations to inhibit or prevent infect CD4+ cells from becoming infected with HIV, and to treat subjects having CD4+ cells infected with HIV.

Abstract: The invention includes stable multimeric, particularly dimeric, forms of PSMA protein, compositions and kits containing dimeric PSMA protein as well as methods of producing, purifying and using these compositions. Such methods include methods for eliciting or enhancing an immune response to cells expressing PSMA, including methods of producing antibodies to dimeric PSMA, as well as methods of treating cancer, such as prostate cancer.

Abstract: This invention provides formulations of the anti-HIV therapeutic, CD4-IgG2, that contain higher concentrations of the therapeutic than were previously prepared, are stable, compatible with lyophilization, and safe to administer. These formulations are suitable for intravenous, subcutaneous and intramuscular delivery, the latter two routes being potentially useful for facilitating self-administration by HIV-infected individuals. This invention is also directed to methods of making the CD4-IgG2 formulations described in the disclosure, and methods of using the formulations to inhibit or prevent infect CD4+ cells from becoming infected with HIV, and to treat subjects having CD4+ cells infected with HIV.

Abstract: This invention provides stable HIV-1 pre-fusion envelope glycoprotein trimeric complexes. This invention also provides related polypeptides and compositions comprising pharmaceutically acceptable particles and the trimeric complexes operably affixed thereto. This invention further provides related nucleic acids, vectors, host cells, compositions, production methods, and prophylactic and therapeutic methods.

Abstract: The invention includes stable multimeric, particularly dimeric, forms of PSMA protein, compositions and kits containing dimeric PSMA protein as well as methods of producing, purifying and using these compositions. Such methods include methods for eliciting or enhancing an immune reponse to cells expressing PSMA, including methods of producing antibodies to dimeric PSMA, as well as methods of treating cancer, such as prostate cancer.

Abstract: The invention includes antibodies or antigen-binding fragments thereof which bind specifically to conformational epitopes on the extracellular domain of PSMA, compositions containing one or a combination of such antibodies or antigen-binding fragments thereof, hybridoma cell lines that produce the antibodies, and methods of using the antibodies or antigen-binding fragments thereof for cancer diagnosis and treatment. The invention also includes oligomeric forms of PSMA proteins, compositions comprising the multimers, and antibodies that selectively bind to the multimers.