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) A61K 39/00 (2006.01)

Patent

CA 2278116

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 d'agents pathogènes, ainsi que leurs procédés d'utilisation et de production. Les produits extracellulaires prédominants ou les plus abondants d'un agent pathogène cible sont sélectionnés, quelle que soit leur immunogénicité moléculaire absolue, puis utilisés en tant que vaccins afin de stimuler, chez des mammifères, une réponse immunitaire protectrice contre une infection ultérieure par ledit agent pathogène cible. Les produits extracellulaires les plus abondants peuvent se caractériser et se distinguer par leurs séquences respectives aminoacides N-terminales, aminoacides, ou d'ADN. Les vaccins pouvant comprendre différentes combinaisons de produits extracellulaires, de sous-unités de ces produits, ou d'acides nucléiques codants, la présente invention permet d'obtenir une vaste gamme de compositions immunothérapeutiques efficaces. Outre d'autres agents infectieux, les vaccins ainsi produits peuvent être utilisés pour stimuler une réponse immunitaire efficace contre les agents pathogènes intracellulaires, en particulier le Mycobacterium tuberculosis.

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