Decorin binding protein compositions and methods of use

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/31 (2006.01) A61K 31/70 (2006.01) A61K 39/02 (2006.01) A61K 39/40 (2006.01) A61K 48/00 (2006.01) C07K 14/20 (2006.01) C07K 16/12 (2006.01) C12Q 1/68 (2006.01) G01N 33/569 (2006.01) A61K 38/00 (2006.01) A61K 39/00 (2006.01)

Patent

CA 2244147

Disclosed are the dbp gene and dbp-derived nucleic acid segments from Borrelia burgdorferi, the etiological agent of Lyme disease, and DNA segments encoding dbp from related borrelias. Also disclosed are decorin binding protein compositions and methods of use. The DBP protein and antigenic epitopes derived therefrom are contemplated for use in the treatment of pathological Borrelia infections, and in particular, for use in the prevention of bacterial adhesion to decorin. DNA segments encoding these proteins and anti-(decorin binding protein) antibodies will also be of use in various screening, diagnostic and therapeutic applications including active and passive immunization and methods for the prevention of Borrelia colonization in an animal. These DNA segments and the peptides derived therefrom are contemplated for use in the preparation of vaccines and, also, for use as carrier proteins in vaccine formulations, and in the formulation of compositions for use in the prevention of Lyme disease.

L'invention concerne le gène dbp et des segments d'acide nucléique dérivés de la dbp provenant de Borrelia burgdorferi, agent étiologique de la maladie de Lyme, ainsi que des segments d'ADN codant pour la dbp provenant de borrelias voisines. Elle concerne également des compositions de protéines de liaison de la décorine et leurs modes d'utilisation. Il est proposé d'utiliser la protéine DBP, ainsi que les épitopes antigéniques qui en sont dérivés, pour le traitement des infections pathologiques à Borrelia et notamment pour la prévention de l'adhésion bactérienne à la décorine. Les segments d'ADN codant pour ces protéines et les anticorps anti-(protéine de liaison de la décorine) peuvent également être utilisés pour diverses applications de criblage, de diagnostic et de thérapeutique, parmi lesquelles l'immunisation passive et active, ainsi que des méthodes de prévention de la colonisation par Borrelia chez l'animal. Il est proposé d'utiliser ces segments d'ADN et les peptides qui en sont dérivés pour la préparation de vaccins et comme protéines porteuses dans des formulations de vaccins, ainsi que dans la formulation de compositions destinées à la prévention de la maladie de Lyme.

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