Pecam-1 modulation

A - Human Necessities – 61 – K

Patent

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Details

A61K 39/395 (2006.01) A61P 7/00 (2006.01) A61P 9/00 (2006.01) C07K 16/28 (2006.01) G01N 33/50 (2006.01)

Patent

CA 2470696

Activation of PECAM-1 (platelet endothelial cell adhesion molecule-1) with for example a small molecule or antibody derivative provides a new therapeutic route for modifying platelet activation and thrombus formation which has utility in the treatment or prevention of cardiovascular diseases, such as thrombosis, stroke and vascular occlusion and in the treatment or prevention of homeostasis disorders. This gives a better approach to the treatment of these conditions than existing drugs as it activates a general inhibitory mechanism rather than merely blocking one arm of the activation system. A screen for activators of PECAM-1 comprises PECAM-1, an ectodomain of PECAM-1, the cytoplasmic tail of PECAM-1, the ITIM of PECAM-1, an active site of PECAM- 1, a recombinant extracellular domain of PECAM-1, or a part of derivative thereof and means for detecting activation or cross-linking or phosphorylation or tyrosine phosphorylation of PECAM-1, an ectodomain of PECAM-1, the cytoplasmic tail of PECAM-1, the IPIM of PECAM-1, an active site of PECAM-1, a recombinant extracellular domain of PECAM-1, or a part or derivative thereof.

Selon l'invention, l'activation de PECAM-1 (molécule d'adhésion des cellules endothéliales aux plaquettes 1) avec, par exemple, une petite molécule ou un dérivé d'anticorps fournit une nouvelle voie thérapeutique pour la modification de l'activation plaquettaire et de la formation de thrombus, d'où une utilité dans le traitement ou la prévention de maladies cardiovasculaires telles que la thrombose, l'accident vasculaire cérébral et l'occlusion vasculaire, et dans le traitement ou la prévention de troubles hémostatiques. L'invention permet d'obtenir un traitement amélioré de ces affections par rapport aux médicaments existants en ce sens qu'on active un mécanisme inhibiteur général au lieu de simplement bloquer un bras du système d'activation. L'invention concerne également un crible destiné à des activateurs de PECAM-1 et comprenant PECAM-1, un ectodomaine de PECAM-1, la queue cytoplasmique de PECAM-1, l'ITIM de PECAM-1, un site actif de PECAM-1, un domaine extracellulaire recombinant de PECAM-1, ou une partie ou un dérivé correspondant, ainsi que des moyens destinés à détecter l'activation, la réticulation, la phosphorylation ou la tyrosine phosphorylation de PECAM-1, d'un ectodomaine de PECAM-1, de la queue cytoplasmique de PECAM-1, de l'ITIM de PECAM-1, d'un site actif de PECAM-1, d'un domaine extracellulaire recombinant de PECAM-1, ou d'une partie ou d'un dérivé correspondant.

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