Neutralizing conformation epitopes of chicken anemia virus

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/34 (2006.01) A61K 39/12 (2006.01) A61K 39/42 (2006.01) C07K 14/01 (2006.01) C07K 16/08 (2006.01) C12N 7/01 (2006.01) C12N 7/04 (2006.01) G01N 33/569 (2006.01) G01N 33/577 (2006.01) A61K 38/00 (2006.01) A61K 39/00 (2006.01)

Patent

CA 2221570

The production of the conformational neutralizing epitope of chicken anemia virus is described and compositions for preventing or treating CAV infections, in particular vaccines less pathogenic than CAV itself. All these compositions were shown to synthesize the conformational neutralizing epitope, necessary for the protective immune response against CAV infections. The invention provides recombinant DNA molecules derived from the CAV genome, and recombinant DNA fragments of the CAV genome integrated in the genome of other virus vectors. In particular, these compositions comprise a sub-unit vaccine, a recombinant live virus vaccine and an attenuated vaccine against CAV infections. The invention also provides the production of neutralizing antibodies directed against CAV and diagnostic kits for the detection of CAV.

L'invention concerne la production de l'épitope conformationnel qui neutralise le virus de l'anémie infectieuse du poulet et des compositions prophylactiques ou thérapeutiques de l'anémie infectieuse du poulet, notamment des vaccins moins pathogènes que le virus lui-même de l'anémie infectieuse du poulet. Toutes ces compositions synthétisent l'épitope conformationnel neutralisant nécessaire pour déclencher une réponse immunitaire de protection contre l'anémie infectieuse du poulet. L'invention concerne des molécules d'ADN recombinant dérivées du génome du virus de l'anémie infectieuse du poulet et des fragments d'ADN recombinant du génome du virus de l'anémie infectieuse du poulet intégrés dans le génome d'autres vecteurs de virus. En particulier, ces compositions comprennent une sous-unité de vaccination, un vaccin à virus vivants recombinants et un vaccin atténué contre l'anémie infectieuse du poulet. L'invention concerne en outre la production d'anticorps neutralisants du virus de l'anémie infectieuse du poulet et des kits de diagnostic qui permettent de détecter l'anémie infectieuse du poulet.

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