Abundant extracellular products and methods for their...

A - Human Necessities – 61 – K

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A61K 39/04 (2006.01) C07K 14/35 (2006.01) C12N 15/31 (2006.01)

Patent

CA 2222000

Vaccines based on one or more combinations of majorly abundant extracellular products of pathogens and methods for their use and production are presented. The most prevalent or majorly abundant extracellular products of a target pathogen are selected irrespective of their absolute molecular immunogenicity and used as vaccines to stimulate a protective immune response in mammalian hosts against subsequent infection by the target pathogen. The majorly abundant extracellular products may be characterized and distinguished by their respective N-terminal amino acid, amino acid, or DNA sequences. As the vaccines may comprise different combinations of the extracellular products, subunits thereof, or encoding nucleic acids, a broad range of effective immunotherapeutic compositions are provided by the present invention. In addition to other infectious agents, the vaccines so produced can be used to stimulate an effective immune response against intracellular pathogens and in particular Mycobacterium tuberculosis.

L'invention concerne des vaccins à base d'une ou plusieurs combinaisons de produits extracellulaires abondants de pathogènes et des procédés pour leur utilisation et leur production. Les produits extracellulaires les plus abondants ou prédominants d'un pathogène cible sont sélectionnés, quelle que soit leur immunogénécité moléculaire absolue, et utilisés comme vaccins pour stimuler une réponse immunitaire protective chez les mammifères contre l'infection ultérieure par le pathogène cible. Les produits extracellulaires les plus abondants peuvent être caractérisés et distingués par leur acide aminé terminal N respectif, leur acide aminé ou leurs séquences d'ADN. Les vaccins peuvent comprendre différentes combinaisons de produits extracellulaires, des sous-unités de ces derniers, ou des acides nucléiques codants, et de ce fait, il est possible d'obtenir un grand nombre de compositions immunothérapeutiques efficaces selon l'invention. Outre d'autres agents infectieux, les vaccins ainsi produits peuvent être utilisés pour stimuler une réponse immunitaire efficace contre les pathogènes intracellulaires et, en particulier, le Mycobacterium tuberculosis.

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