Patent application number | Description | Published |
20080206264 | Constrained Hiv V3 Loop Peptides as Novel Immunogens and Receptor Antagonists - The present invention provides constrained peptides and other organic molecules, that mimic the three dimensional characteristics of the HIV-1 V3 loop peptide when bound by a highly potent human neutralizing monoclonal antibody specific for a V3 conformational epitope, which structure is determined by NMR. Methods for screening for, and designing such molecules are disclosed. These molecules are useful as immunogens for inducing broadly-neutralizing antibodies against HIV-1 as well as antagonists for inhibiting the binding of HIV-1 to the relevant co-receptors, and may therefore be used in method of preventing or treating HIV-1 infection and disease. | 08-28-2008 |
20080279879 | INDUCTION OF BROADLY REACTIVE NEUTRALIZING ANTIBODIES BY FOCUSING THE IMMUNE RESPONSE ON V3 EPITOPES OF THE HIV-1 gp120 ENVELOPE - Compositions, kits and methods for boosting, or for priming and boosting, high titer broadly neutralizing cross-clade antibody responses focused on single HIV-1 neutralizing epitopes are disclosed. gp120 DNA plasmids comprising HIV env genes are used to prime the antibody response. Primed subjects are immunized with recombinant fusion proteins that comprise a “carrier” protein fusion partner, preferably a truncated form of the MuLV gp70 Env protein, and a desired HIV neutralizing epitopes. Preferred epitopes are epitopes of V3 from one or more HIV clades. Immune sera from such immunized subjects neutralized primary isolates from virus strains heterologous to those from which the immunogens were constructed. Neutralizing activity was primarily due to V3-specific antibodies and cross-clade neutralizing Abs were present. This approach results in more potent and broader neutralizing antibody levels, a result of “immunofocusing” the humoral immune response on neutralizing epitopes such as V3. | 11-13-2008 |
20090098144 | IMMUNOGEN PRESENTING HIV GP120 V3 LOOP IN A CONFORMATION THAT INDUCES BROADLY NEUTRALIZING ANTIBODIES - Insertion of HIV-1 V3 loop peptides from the viral glycoprotein gp120 into selected, immunogenic scaffold proteins results in a recombinant polypeptide that is a potent V3 immunogen. V3 immunogens include natural and consensus V3 sequences and cyclic and reverse peptides. Preferred scaffold proteins are Cholera Toxin subunit B and homologues thereof including closely related | 04-16-2009 |
20090280140 | Early detection of mycobacterial disease using peptides - A number of protein and glycoprotein antigens secreted by | 11-12-2009 |
20100278853 | CONSTRAINED HIV V3 LOOP PEPTIDES AS NOVEL IMMUNOGENS AND RECEPTOR ANTAGONISTS - The present invention provides constrained peptides and other organic molecules, that mimic the three dimensional characteristics of the HIV-1 V3 loop peptide when bound by a highly potent human neutralizing monoclonal antibody specific for a V3 conformational epitope, which structure is determined by NMR. Methods for screening for, and designing such molecules are disclosed. These molecules are useful as immunogens for inducing broadly-neutralizing antibodies against HIV-1 as well as antagonists for inhibiting the binding of HIV-1 to the relevant co-receptors, and may therefore be used in method of preventing or treating HIV-1 infection and disease. | 11-04-2010 |
20110104194 | IMMUNODOMINANT MYCOBACTERIUM TUBERCULOSIS PEPTIDES FROM CELL WALL PROTEINS FOR EARLY DIAGNOSIS AND IMMUNIZATION - A number of peptide epitopes and fragments from three | 05-05-2011 |
20130071424 | PEPTIDES MIMICKING HIV-1 VIRAL EPITOPES IN THE V2 LOOP FOR THE GP120 SURFACE ENVELOPE GLYCOPROTEIN - The present invention relates to an isolated immunogenic peptide comprising a V2 loop fragment from HIV surface envelope glycoprotein gp120. This peptide binds specifically with antibodies in blood of patients vaccinated with a vaccine that has shown protection from HIV-1 infection, does not react with blood of matched patients who did not receive the vaccine, and can, therefore, elicit anti-HIV-1 antibodies which protect against HIV-1 infection. Other aspects of the present invention relate to an isolated immunogenic polypeptide comprising the peptide inserted into an immunogenic scaffold protein, a vaccine composition comprised of the immunogenic peptide and an immunologically or pharmaceutically acceptable vehicle or excipient as well as methods of inducing an immune response against HIV-1 and methods of detecting HIV-1. | 03-21-2013 |
20130287804 | IMMUNOGENIC POLYPEPTIDES HAVING AN IMMUNOGENIC SCAFFOLD PROTEIN AND A LOOP PEPTIDE, PRESENTING A 3074- OR 2219/2557- MONOCLONAL ANTIBODY-TARGETED EPITOPE, WHICH IS PRESENT IN THE HIV GP120 PROTEIN - The present invention is directed to a recombinant immunogenic polypeptide. The polypeptide includes a loop peptide inserted into an immunogenic scaffold protein. The loop polypeptide has an amino acid sequence which presents the 3074 mAb- or the 2219/2557 mAb-targeted epitope of the HIV gp120 protein and not other known epitopes of the HIV gp120 protein. When used as an immunogen, the polypeptide induces an antibody response which neutralizes heterologous HIV-1 viruses in a pattern similar to that observed for the 3074 mAb- or the 2219/2557 mAb-targeted epitope, respectively. Pharmaceutical compositions containing the immunogenic polypeptide as well as methods of making and using it are also disclosed. | 10-31-2013 |