Compositions and methods related to production of...

A - Human Necessities – 61 – K

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A61K 38/00 (2006.01) A61K 38/18 (2006.01) A61P 7/06 (2006.01)

Patent

CA 2521979

Disclosed are methods and compositions that are related to the production of erythropoietin. The disclosed compositions generally comprise a poly amino acid, such as a poly amino acid comprising one or more glutamic acid residues. The production of erythropoietin by use of the disclosed compositions and methods can take place in vivo, in which the proliferation of a subject~s erythropoietin-producing cells leads to an increased level of production of erythropoietin, in vitro, in which increased proliferation of cultured erythropoietin-producing cells leads to an increased production of erythropoietin, ex vivo, in which cells or tissues harvested from a subject produce erythropoietin. The disclosed compositions can be administered to a subject or applied to cells or tissues to stimulate increased production of erythropoietin. The disclosed compositions and methods can be used, for example, to treat anemia, such as anemia associated with diseases and disorders such as chronic renal failure, end stage renal disease, malignancies, HIV infections and AIDS, rheumatoid arthritis, myeloma, and myeloplastic syndrome, and other diseases and disorders.

La présente invention a trait à des procédés et des compositions associés à la production d'érythropoiétine. Les compositions de l'invention comportent, de manière générale, un polyamino acide, tel qu'un polyamino acide comprenant un ou des résidus d'acide glutamique. La production d'érythropoiétine au moyen des compositions et des procédés de l'invention peut s'effectuer in vivo, dans lequel cas la prolifération des cellules de production d'érythropoiétine entraîne un accroissement dans le niveau de production d'érythropoiétine, in vitro, dans lequel cas la prolifération de cellules cultivées de production d'érythropoiétine entraîne un niveau de production accru d'érythropoiétine, ex vivo, dans lequel cas des cellules ou tissus recueillis à partir d'un sujet produit de l'érythropoiétine. Les compositions de l'invention peuvent être administrées à un sujet ou appliquées à des cellules ou tissus en vue de la stimulation de production accrue d'érythropoiétine. Les compositions et les procédés de l'invention peuvent être utilisés, par exemple, pour le traitement de l'anémie associée aux maladies et aux troubles tels que l'insuffisance rénale chronique, l'insuffisance rénale terminale, des malignités, des infections par VIH et le SIDA, la polyarthrite rhumatoïde, le myélome, et le syndrome myélodysplasique, et d'autres maladies et troubles.

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