New immunoprotective influenza antigen and its use in...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/00 (2006.01) C07K 14/02 (2006.01) C07K 14/11 (2006.01) C07K 14/47 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2297786

The present invention relates to an influenza antigen, comprising a fusion product of at least the extracellular part of a conserved influenza membrane protein or a functional fragment thereof and a presenting carrier, which may be a presenting (poly)peptide or a non-peptidic structure, such as glycans, peptide mimetics, synthetic polymers. The invention further relates to a vaccine against influenza, comprising at least an antigen of the invention, optionally in the presence of one or more excipients. The invention also relates to use of the antigen, a method for preparing the antigen and acceptor cells expressing the antigen.

La présente invention se rapporte à un antigène de la grippe de type A, comprenant un produit de fusion provenant au moins de la partie extracellulaire d'une protéine membranaire conservée de la grippe A, ou d'un fragment fonctionnel de celle-ci, et un porteur de présentation, pouvant être une structure de présentation (poly)peptidique ou non polypeptidique, telle des glycanes, des mimétiques de peptides et des polymères synthétiques. L'invention se rapporte également à un vaccin contre la grippe A, comprenant au moins un antigène de l'invention et éventuellement un ou plusieurs excipients, à un procédé de préparation de cet antigène et de cellules receveuses l'exprimant, et enfin, a l'utilisation de cet antigène.

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