Rabies virus-based recombinant immunocontraceptive...

A - Human Necessities – 61 – K

Patent

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Details

A61K 39/205 (2006.01) A61K 39/00 (2006.01) C07K 14/145 (2006.01) C12N 15/86 (2006.01)

Patent

CA 2736604

Described herein are recombinant rabies viruses comprising a heterologous nucleic acid sequence encoding an immunocontraceptive protein, such as gonadotropin-releasing hormone (GnRH) or zona pellucida 3 (ZP3). The recombinant rabies viruses disclosed herein are recovered by reverse genetics, replicate efficiently, elicit rabies virus neutralizing antibodies and immunocontraceptive peptide-specific antibodies in vaccinated animals, and protect vaccinated animals against wild-type rabies virus challenge. Further provided is a method of immunizing a non-human animal against rabies virus infection and simultaneously inhibiting fertility of the animal, comprising administering an immunogenic composition comprising one or more of the recombinant rabies viruses described herein.

La présente invention concerne des virus recombinants de la rage comprenant une séquence dacide nucléique hétérologue codant pour une protéine immunocontraceptive, telle que lhormone de libération de la gonadotropine (GnRH) ou la zone pellucide 3 (ZP3). Les virus recombinants de la rage décrits dans ce document sont récupérés par génétique inverse, se répliquent de manière efficace, déclenchent des anticorps neutralisant le virus de la rage et des anticorps spécifiques des peptides immunocontraceptifs chez les animaux vaccinés et ils protègent les animaux vaccinés contre une provocation avec le virus de la rage de type sauvage. Linvention a en outre pour objet une méthode dimmunisation dun animal non humain contre une infection par le virus de la rage et simultanément dinhibition de la fertilité de lanimal, comprenant ladministration dune composition immunogénique renfermant un ou plusieurs des virus recombinants de la rage décrits dans ce document.

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