T cell antigen receptor peptides

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 14/725 (2006.01) A61K 38/08 (2006.01) A61K 38/10 (2006.01) A61K 38/17 (2006.01) A61K 47/48 (2006.01) C07K 7/06 (2006.01) C07K 7/08 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2257973

The present invention provides peptides which affect T-cells, presumably by action on the T-cell antigen receptor. The present invention further relates to the therapy of various inflammatory and autoimmune disease states involving the use of these peptides. Specifically, the peptides are useful in the treatment of disorders where T- cells are involved or recruited. In one aspect the peptides have the formula: R1-A-B-A-R2 in which A is a hydrophobic amino acid or a hydrophobic peptide sequence comprising between 2 and amino acids; B is a charged amino acid; R1 is NH2 and R2 is COOH. In another aspect the peptides have the formula: R1-A-B-C-R2 in which A is a peptide sequence of between 0 and 5 amino acids; B is cysteine; C is a peptide sequence of between 2 to 10 amino acids; R1 is NH2; and R2 is COOH.

La présente invention concerne des peptides qui affectent les cellules T, probablement en agissant sur le récepteur d'antigène des cellules T. La présente invention se rapporte également à la thérapie de divers états pathologiques inflammatoires et autoimmuns par l'utilisation desdits peptides. En particulier, ces peptides sont utiles dans le traitement de troubles dans lesquels les cellules T interviennent ou sont recrutées. Dans un mode de réalisation, les peptides ont la formule: R1-A-B-A-R2 où A est un acide aminé hydrophobe ou une séquence peptidique hydrophobe comprenant entre 2 et 10 acides aminés; B est un acide aminé chargé; R1 est NH2; et R2 est COOH. Selon un autre mode de réalisation, les peptides ont la formule: R1-A-B-C-R2 où A est une séquence peptides comprenant entre 0 et 5 acides aminés; B est une cystéine; C est une séquence peptidique comprenant entre 2 et 10 acides aminés; R1 est NH2; et R2 est COOH.

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