Modulation of excitable tissue function by peripherally...

A - Human Necessities – 61 – K

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A61K 38/00 (2006.01) A61K 38/18 (2006.01) C07K 14/00 (2006.01)

Patent

CA 2383940

Methods and compositions are provided for protecting or enhancing excitable tissue function in mammals by systemic administration of an erythropoietin receptor activity modulator, such as erythropoietin, which signals via an EPO- activated receptor to modulate the function of excitable tissue. Excitable tissues include central neuronal tissues, such as the brain, peripheral neuronal tissues, retina, and heart tissue. Protection of excitable tissues provides treatement of hypoxia, seizure disorders, neurodegenerative diseases, hypoglycemia, and neurotoxin poisoning. Enhancement of function is useful in learning and memory. The invention is also directed to compositions and methods for facilitating the transport of molecules across endothelial cell tight junction barriers, such as the blood-brain barrier, by association of molecules with an erythropoietin receptor activity modulator, such as an erythropoietin.

L'invention concerne des procédés et des compositions permettant de protéger et d'améliorer la fonction de tissus excitables chez les mammifères par administration systémique d'un modulateur de l'activité du récepteur de l'érythropoïétine, notamment l'érythropoïétine, par le biais de signaux via un récepteur activé par EPO pour moduler la fonction de tissus excitables. Ces tissus excitables sont formés de tissus neuronaux centraux, notamment du cerveau, de tissus neuronaux périphériques et de tissus de la rétine et du coeur. Grâce à la protection de ces tissus, on peut traiter l'hypoxie, les troubles épileptiques, les maladies neurodégénératives, l'hypoglycémie et l'empoisonnement neurotoxique. L'amélioration de la fonction des tissus excitables contribue à faciliter l'apprentissage et développer la mémoire. L'invention concerne également des compositions et des procédés tendant à faciliter le transport de molécules à travers les barrières de la zone de déplétion de cellules endothéliales, notamment la barrière hémato-encéphalique par l'association de molécules avec un modulateur de l'activité du récepteur de l'érythropoïétine, notamment une érythropoïétine.

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