Norovirus and sapovirus antigens

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 14/08 (2006.01) A61K 39/12 (2006.01) C07K 16/10 (2006.01)

Patent

CA 2630220

Immunogenic compositions that elicit immune responses against Norovirus and Sapovirus antigens are described. In particular, the invention relates to polynucleotides encoding one or more capsid proteins or other immunogenic viral polypeptides from one or more strains of Norovirus and/or Sapovirus, coexpression of such immunogenic viral polypeptides with adjuvants, and methods of using the polynucleotides in applications including immunization and production of immunogenic viral polypeptides and viral-like particles (VLPs). Methods for producing Norovirus- or Sapovirus-derived multiple epitope fusion antigens or polyproteins and immunogenic compositions comprising one or more immunogenic polypeptides, polynucleotides, VLPs, and/or adjuvants are also described. The immunogenic compositions of the invention may also contain antigens other than Norovirus or Sapovirus antigens, including antigens that can be used in immunization against pathogens that cause diarrheal diseases, such as antigens derived from rotavirus.

Cette invention concerne des compositions immunogènes qui provoquent des réponses immunitaires contre les antigènes de Norovirus et de Sapovirus. Cette invention concerne en particulier des polynucléotides codant une ou plusieurs protéines de capsides ou autres polypeptides viraux immunogènes d'une ou plusieurs souches de Norovirus et/ou de Sapovirus, la coexpression de tels polypeptides viraux immunogènes avec des adjuvants et des procédés d'utilisation des polynucléotides dans des applications comprenant l'immunisation et la production de polypeptides viraux et de particules de type viral (VLP) immunogènes. Cette invention concerne également des procédés de production d'antigènes ou de polyprotéines de fusion à épitopes multiples dérivés de Norovirus ou de Sapovirus et des compositions immunogènes comprenant un ou plusieurs polypeptides, polynucléotides, particules de type viral et/ou adjuvants immunogènes. Les compositions immunogènes de cette invention peuvent également contenir des antigènes autres que des antigènes de Norovirus ou de Sapovirus, y compris des antigènes qui peuvent être utilisés dans l'immunisation contre des pathogènes qui provoquent les maladies diarrhéiques tels que des antigènes dérivés de rotavirus.

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