Apoptosis-inducing protein complexes and therapeutic use...

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 14/705 (2006.01) A61K 38/17 (2006.01) C07K 19/00 (2006.01)

Patent

CA 2634292

The invention relates to the fields of immunology and molecular medicine. In particular, it relates to protein complexes that can be applied as therapeutic agent to induce apoptotic cell death in a target cell population, for example tumour cells or virally infected cells. Provided is a multivalent monospecific protein complex comprising at least six polypeptides capable of recognizing and binding to a specific Major Histocompatibility Complex (MHC)- peptide complex, which complex induces apoptosis through the recognition of and binding to MHC-peptide molecules of a target cell. Also provided is the therapeutic use of a protein complex, for example for the manufacture of a medicament for the treatment of cancer, a viral or a microbial infection.

L'invention concerne les domaines de l'immunologie et de la médecine moléculaire. En particulier, l'invention concerne des complexes de protéines qui peuvent être utilisés en tant qu'agent thérapeutique pour induire la mort cellulaire apoptotique dans une population de cellules cibles, par exemple des cellules tumorales ou des cellules infectées par un virus. L'invention concerne un complexe de protéines monospécifique multivalent comprenant au moins six polypeptides capables de reconnaître et de se lier à un complexe peptide-complexe majeur d'histocompatibilité (CMH) spécifique, lequel complexe induit l'apoptose via la reconnaissance d'une cellule cible et à la liaison de molécules de CMH-peptide à celle-ci. L'invention concerne également l'utilisation thérapeutique d'un complexe de protéines, par exemple pour la fabrication d'un médicament pour le traitement d'un cancer, d'une infection virale ou microbienne.

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