Muscle morphogenic protein and use thereof

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Implant or insert

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424423, 514 2, 514 21, 530300, 530353, 530840, 623 14, A61K 3702, A61K 3712, A61F 208, C07K 1528

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053286952

ABSTRACT:
A myogenic protein isolate from mammalian bone is provided that stimulates lineage commitment and differentiation of stem cells in vitro and in vivo. The protein isolate is characterized by its ability to cause muscle stem cell differentiation without excessive proliferation of connective tissue proximal to the delivery site. Treated muscle stem cells differentiate into myotubes and multinucleated structures with minimal formation of scar tissue, resulting in functional muscle tissue restoration in vivo, and therefore useful in the treatment of a number of disorders and injuries. The protein isolate is preferably administered by implanting a bioerodible polymer matrix, preferably a surface erodible polymer such as a polyanhydride or a polyorthoester, interspersed with the protein isolate near the site of muscle injury or degeneration, but can be administered directly to cells cultured in vitro.

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