Method and material for treating immune diseases

A - Human Necessities – 61 – K

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Details

A61K 31/715 (2006.01) A61K 31/732 (2006.01)

Patent

CA 2451885

An immune response in an organism is controlled by administering to said organism a therapeutically effective amount of a compound which binds to a galectin. In specific instances the compound is selected to bind to galectin-1 or galectin-3. Some therapeutic materials comprise natural or synthetic polymers having galactose or arabinose terminated side chains pendent therefrom. A group of preferred therapeutic compounds comprise modified pectins or other materials having a substantially demethoxylated rhamnogalacturan backbone having rhamnose residues interrupting the backbone. One therapeutic material includes a first functional portion which binds to the carbohydrate binding portion of a galectin, and a second functional portion which is operable denature the galectin protein.

La présente invention concerne la régulation de la réponse immunitaire dans un organisme par administration à cet organisme d'une quantité suffisante d'un composé se liant à une galectine. Dans ces cas spécifiques, on sélectionne le composé pour qu'il se lie à la galectine-1 ou à la galectine-3. Certains produits thérapeutiques comprennent des polymères naturels ou synthétiques portant des chaînes latérales pendantes à terminaisons galactose ou arabinose. Un groupe préféré de ces composés thérapeutiques comprend des pectines modifiées ou d'autres produits dont la colonne vertébrale rhamnigalacturane sensiblement déméthoxylée est interrompue par des résidus rhamnose. L'un de ces produits thérapeutiques comporte une première partie fonctionnelle qui se lie à la partie de liaison aux glucides d'une galectine, et une seconde partie fonctionnelle capable de dénaturer la galectine.

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