Human monoclonal antibody against hepatitis c virus e2...

C - Chemistry – Metallurgy – 12 – N

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C12N 15/13 (2006.01) A61K 31/00 (2006.01) A61K 39/42 (2006.01) A61P 31/14 (2006.01) C07K 14/18 (2006.01) C07K 16/10 (2006.01) C12N 5/28 (2006.01)

Patent

CA 2412460

Disclosed is a hybridoma cell line which produces human antibodies capable of binding to the hepatitis C virus (HCV) E2 glycoprotein and capable of neutralizing HCV infection in vivo in an animal model, as well as antibodies produced by the cell line. Also disclosed are various uses of said antibodies in the prevention and treatment of HCV infection. Peripheral blood lymphocytes obtained from human donors having a high titer of anti HCV E2 antibodies are transformed in vitro by Epstein-Barr virus and then fused with heteromyeloma cells to generate hybridomas secreting human antibodies having a high affinity and specificity to HCV E2 glycoprotein.

L'invention concerne une lignée cellulaire d'hybridomes qui produit des anticorps pouvant se lier à la glycoprotéine E2 du virus de l'hépatite C (VHC) et neutraliser l'infection à VHC in vivo chez un modèle animal, ainsi que des anticorps produits par ladite lignée cellulaire. L'invention concerne également diverses utilisations desdits anticorps pour la prévention et le traitement de l'infection à VHC. Des lymphocytes du sang périphérique obtenus de donneurs humains présentant une teneur élevée en anticorps anti E2 du VHC sont transformés in vitro par le virus d'Epstein-Barr puis mélangés avec des cellules hétéromyélomateuses pour générer des hybridomes, lesquels sécrétent des anticorps présentant une grande affinité et spécificité pour la glycoprotéine E2 du VHC.

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