Abstract:
A secretion signal peptide sequence (SP) in combination with a cleavage inhibition sequence (CIS) fused to a structural gene sequence in a recombinant expression system can be used to express a full length protein with an SP in a cell. Such a fusion protein may be purified to homogeneity from a membrane fraction of the cell. The SP in combination with the CIS is a protein transduction domain that exhibits superior intracellular protein transduction efficiency when the SP precedes the CIS in a N to C-terminus direction.
Abstract:
Nonlamellar bioresorbable microparticles to which protein substances are bonded, and a method for preparing the microparticles, comprising: (i) preparing the microparticles from at least one bioresorbable polymer without stabilizer and without surfactant; and (ii) bonding the protein substances to the microparticles obtained in step (i) without surfactant.
Abstract:
The present invention is directed to compositions of matter useful for the diagnosis and treatment of tumor in mammals and to methods of using those compositions of matter for the same.
Abstract:
The present invention relates to a method for preparing nonlamellar bioresorbable microparticles to which protein substances are bonded, characterized in that it comprises the steps of: (i) preparing said microparticles from at least one bioresorbable polymer without stabilizer and without surfactant, and (ii) bonding said protein substances to the microparticles obtained in step (i) without surfactant. It further relates to the bioresorbable microparticles thus obtained and use thereof in diagnosis and therapy.
Abstract:
The present invention relates to a substance that specifically binds a nuclear localization signal (NLS)-containing molecule. Said substance may be a naturally occurring, synthetic or recombinant antibody, or it may be a protein, a peptide or a small molecule. Preferably, said NLS-containing molecule is a HIV-1 protein, more preferably Vpr or Tat. In addition, the present invention relates to a composition or a vaccine comprising the substance of the invention, as well as methods of inhibiting viral infection through the administration thereof.
Abstract:
A single isolated antibody or antibody fragment thereof binds to multiple variant sequences within an epitope of HIV-1 Tat protein displayed in multiple strains and subtypes of HIV-1. This “pan-epitope” antibody is useful in therapeutic and prophylactic compositions and treatments of HIV-1 infection, regardless of strain. This pan-epitope antibody is useful in assays for the detection of levels of HIV-1 based on a measurement of the amount of Tat protein in a biological sample.
Abstract:
The invention relates to compositions containing polynucleotide vectors capable of expressing a nucleic acid encoding a fusion polypeptide on the surface of a viral particle and/or a eukaryotic cell.
Abstract:
The present invention provides novel polypeptides which can effectively penetrate into cells thereby transporting a substance of interest into the cells.
Abstract:
The present invention provides for peptide conjugate compositions, methods of using the peptide conjugate compositions, and pharmaceutical compositions comprising the peptide conjugate compositions. The peptide conjugate compositions comprise peptides with amino acid sequences similar to the gp 120 principal neutralizing domain (PND) of HIV, gp41, and Nef (p27) of HIV and carriers which enhance immunogenicity. The peptide conjugate compositions of the present invention may comprise a multivalent cocktail of several different peptide conjugates. Also provided by present invention is a method for reducing the level of HIV titers in a mammal by administering to the mammal a peptide composition of the present invention in an amount effective to reduce the level of HIV titers. The peptide conjugate compositions of the present invention induce prolonged antibody response in serum, a high level of antibody in the mucosa, and the production of cytotoxic lymphocytes. The peptide conjugate compositions of the present invention also elicit neutralizing antibodies and decrease viral loads in a subject.
Abstract:
The present invention provides for peptide conjugate compositions, methods of using the peptide conjugate compositions, and pharmaceutical compositions comprising the peptide conjugate compositions. The peptide conjugate compositions comprise peptides with amino acid sequences similar to the gp120 principal neutralizing domain (PND) of HIV, gp41, and Nef (p27) of HIV and carriers which enhance immunogenicity. The peptide conjugate compositions of the present invention may comprise a multivalent cocktail of several different peptide conjugates. Also provided by present invention is a method for reducing the level of HIV titers in a mammal by administering to the mammal a peptide composition of the present invention in an amount effective to reduce the level of HIV titers. The peptide conjugate compositions of the present invention induce prolonged antibody response in serum, a high level of antibody in the mucosa, and the production of cytotoxic lymphocytes. The peptide conjugate compositions of the present invention also elicit neutralizing antibodies and decrease viral loads in a subject.