摘要:
The present invention relates to the use of a mutation of at least one amino acid in the immunosuppressive domain of a HIV or SIV accessory protein, for modulating the immunosuppressive property of said protein.
摘要:
The present invention relates to a polypeptide having a sequence of 7 to 20 amino acid residues, which is capable of modulating the immunosuppressive properties of a viral protein or a fragment thereof, against the host in which it is expressed (immunosuppression-modulatory sequence) when it substitutes the homologous sequence of said viral protein or fragment, said polypeptide comprising the minimum following consensus amino acid sequence: X1Y9Y10Y11CY12X2 wherein, X1 and X2 are selected to impact on said immunosuppressive properties, and Y9 to Y12 represent variable amino acid residues.
摘要:
The present invention is directed to a method for the prevention and/or the treatment of cancer in a mammal, wherein the cancerous cells express at least one protein of endogenous retrovirus, particularly immunosuppressive protein such as env gene encoded protein from HERV-K, particularly the Np9 protein, said method comprising inhibiting the expression and/or the activity of said endogenous retrovirus and/or said env gene encoded immunosuppressive protein. The invention also relates to pharmaceutical compositions comprising nucleic acid capable of inhibiting said expression, ligand such as antibodies capable of inhibiting the activity of said env gene encoded protein, or immunogen or vaccinal composition capable of inducing an immune response, cellular or humoral response directed against said env gene encoded protein. The invention is further directed to the use of such env gene encoded protein, mutated or not, for the manufacture of a medicament or a vaccine composition intended for the prevention or the treatment of cancers.
摘要:
The invention concerns biosensors, the method for obtaining them and their uses in particular for detecting, assaying or locating, in direct immunofluorescence, a ligand such as an antigen or a hapten, in a heterogeneous population. Said biosensors consist of (i) at least a protein-type receptor fragment, capable of binding with a suitable ligand via an active site and in which fragment, at least one of its amino acid residues, located in the proximity of said active site is naturally present in the form of a Cys residue or is substituted in Cys residue, and (ii) a fluorophore coupled with said Cys residue(s).