Virus coat protein/receptor chimeras and methods of use

A - Human Necessities – 61 – K

Patent

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Details

A61K 39/00 (2006.01) C07K 14/155 (2006.01) C07K 14/16 (2006.01) C07K 14/73 (2006.01) C07K 16/10 (2006.01) C07K 16/28 (2006.01) G01N 33/569 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2457414

The invention relates to chimeric molecules comprising a virus coat sequence and a receptor sequence that can inter-act with each other to form a complex that is capable of binding a co-receptor. Such chimeric molecules therefore exhibit functional properties characteristic of a receptor-coat protein complex and are useful as agents that inhibit virus infection of cells due to occupancy of a co-receptor present on the cell. In particular aspects, the chimeric polypeptide includes an immunodeficiency virus envelope polypeptide, such as that of HN , SN, FIV, FeL V, FPV and herpes virus. Receptor sequences suitable for use in a chimeric polypeptide include, for example, CD4 DID2 and CD4M9 sequences.

L'invention concerne des molécules chimériques comprenant une séquence d'enveloppe virale ainsi qu'une séquence de récepteur pouvant interagir l'une avec l'autre de façon à former un complexe capable de se lier à un co-récepteur. Par conséquent, ces molécules chimériques présentent des propriétés fonctionnelles caractéristiques d'un complexe récepteur-protéine d'enveloppe, et sont utiles comme agents inhibant une infection virale de cellules liée à l'occupation d'un co-récepteur présent sur la cellule. Dans des aspects particuliers de l'invention, le polypeptide chimérique comprend un polypeptide d'enveloppe d'un virus d'immunodéficience, et notamment du VIH, du VIS, du VIF, du FeLV, du PVF et du virus herpétique. Les séquences de récepteur pouvant être utilisées dans un polypeptide chimérique comprennent, par exemple, des séquences CD4 D1D2 et CD4M9.

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