Flavivirus fusion inhibitors

A - Human Necessities – 61 – K

Patent

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Details

A61K 39/12 (2006.01) A61K 38/00 (2006.01) A61K 38/16 (2006.01) A61K 39/193 (2006.01) A61K 39/29 (2006.01) A61K 39/38 (2006.01) A61P 31/14 (2006.01) C07K 16/10 (2006.01)

Patent

CA 2503303

The present invention relates to peptides and methods of inhibiting fusion between the virion envelope of Flaviviruses and membranes of the target cell, the process that delivers the viral genome into the cell cytoplasm. The invention provides for methods which employ peptides or peptide derivatives to inhibit Flavivirus:cell fusion. The present invention is based in part on the discovery that El envelope glycoprotein of hepaciviruses and E2 envelope glycoprotein of pestivirus have previously undescribed structures, truncated class II fusion proteins. The present invention provides peptides and methods of treatment and prophylaxis of diseases induced by Flaviviruses.

La présente invention concerne des peptides et des méthodes pouvant inhiber la fusion entre l'enveloppe des particules virales des flavivirus et les membranes de la cellule cible, processus qui amène le génome viral à l'intérieur du cytoplasme cellulaire. L'invention concerne des méthodes qui utilisent des peptides ou leurs dérivés pour inhiber la fusion des flavivirus et des cellules. La présente invention est fondée, en partie, sur la découverte selon laquelle la glycoprotéine d'enveloppe E1 des hépacivirus et la glycoprotéine d'enveloppe E2 du pestivirus présentent des protéines hybrides de classe II tronquées, dont les structures n'étaient pas décrites antérieurement. L'invention concerne en outre des peptides et des méthodes de traitement et de prophylaxie de maladies induites par des flavivirus.

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