Conditioned medium of autologous or allogenic progenitor...

C - Chemistry – Metallurgy – 12 – N

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C12N 5/08 (2006.01)

Patent

CA 2578815

A therapeutic composition is provided that comprises a cell-free conditioned medium containing mixed secretion products of isolated angiogenic progenitor cells obtained from bone marrow, peripheral blood, or adipose tissue. The composition may additionally contain angiogenesis-promoting proteins obtained by transfecting the progenitors cells in culture with an angiogenesis promoting transgene. The composition is useful to promote angiogenesis when introduced into or adjacent to an ischemic site in a patient, such as in myocardium or peripheral limb. Methods are also provided for utilizing such cell-free conditioned medium to deliver angiogenesis-promoting proteins to a patient. The cell-free conditioned medium can also be injected into the blood stream for delivery to the ischemic tissue. The cells can derive from either an autologous or allogenic source and can be lyophilized or frozen for storage.

Composition thérapeutique comprenant un support conditionné acellulaire renfermant des produits mixtes de sécrétion de cellules progénitrices angiogènes isolées obtenues à partir de moelle osseuse, de sang périphérique ou de tissus adipeux. De plus, cette composition peut comprendre des protéines favorisant l'angiogenèse obtenues par transfection de cellules progénitrices dans une cultures avec un transgène favorisant l'angiogenèse. La composition permet de favoriser l'angiogenèse lorsqu'elle est introduite dans ou contre un site ischémique chez un patient, tel que le myocarde ou un membre périphérique. Sont également décrites des méthodes d'utilisation d'un tel support conditionné acellulaire pour l'administration de protéines favorisant angiogenèse chez un patient. Le support conditionné acellulaire peut également être administré au tissu ischémique par injection dans la circulation sanguine. Les cellules peuvent être d'origine autologue ou allogène et être lyophilisées ou congelées à des fins de stockage. .

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