Recombinant microorganisms

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/67 (2006.01) A61K 39/02 (2006.01) C07K 14/24 (2006.01) C12N 1/20 (2006.01) C12N 1/21 (2006.01) C12N 15/74 (2006.01)

Patent

CA 2382067

A method of enhancing expression of a desired protein at mucosal effector sites, said method comprising placing the protein to be expressed under the control of a promoter having SEQ ID NO 2, SEQ ID NO 3 or SEQ ID NO 4 or a fragment or variant or any of these which has promoter activity, and causing expression in mucosal cells. Constructs used in the methods, as well as suitable recombinant gut-colonising microorganisms such as a Salmonella spp. are also described and claimed. Such organisms are useful in the preparation of vaccines.

L'invention porte sur un procédé visant à améliorer l'expression d'une protéine désirée au niveau des sites des muqueuses d'un effecteur. Ce procédé consiste à placer la protéine devant être exprimée sous la régulation d'un promoteur ayant les numéros de séquences: SEQ ID NO 2, SEQ ID NO 3 ou SEQ ID NO 4 ou un fragment ou une variante ou n'importe lequel de ceux-ci qui a l'activité du promoteur et à générer l'expression dans les cellules des muqueuses. L'invention porte également sur des produits de recombinaison utilisés dans ces procédés, ainsi que sur des micro-organismes de recombinaison appropriés colonisant les intestins tels que Salmonella spp., ces organismes étant utilisés dans la préparation de vaccins.

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