A thermosensitive hydrogel capable of releasing bFGF for enhanced differentiation of mesenchymal stem cell into cardiomyocyte-like cells under ischemic conditions.

作者: Zhenqing Li , Xiaolei Guo , Jianjun Guan

DOI: 10.1021/BM300574J

关键词: Cell biologyCell survivalGrowth factorNanotechnologyTrimethylene carbonateLow oxygenInfarcted heartAcrylic acidMesenchymal stem cellChemistry

摘要: A thermosensitive hydrogel capable of differentiating mesenchymal stem cells (MSCs) into cardiomyocyte-like was synthesized. The based on N-isopropylacrylamide (NIPAAm), N-acryloxysuccinimide, acrylic acid, and hydroxyethyl methacrylate-poly(trimethylene carbonate). highly flexible at body temperature with breaking strain >1000% Young’s modulus 45 kPa. When MSCs were encapsulated in the cultured under normal culture conditions (10% FBS 21% O2), differentiated cells. However, differentiation retarded, even diminished, low nutrient oxygen conditions, which are typical infarcted heart. We hypothesized that enhancing MSC survival would restore differentiation. To enhance cell survival, a pro-survival growth factor (bFGF) loaded hydrogel. bFGF able to sustainedly release from for 21 days. Under a...

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