基底力学微环境对胚胎干细胞肝向分化的影响

来源 :中国细胞生物学学会2015年全国学术大会 | 被引量 : 0次 | 上传用户:wuhaoxust
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  胚胎干细胞具有无限增殖、自我更新和分化的特性,可被诱导为机体几乎所有的细胞种类,为细胞的遗传操作和分化研究提供丰富的实验材料,其全能性一直是研究的热点。生物化学和力学环境的协同作用是影响ESCs分化的关键因素,然而力学因素(尤其是基于肝血窦特殊力学微环境)调控ESCs的肝向分化知之甚少。本文立足于体外模拟ESCs体内生存环境的硬度及基底微结构,采用生物相容性好的聚丙烯酰胺水凝胶(PA胶),利用软接触式光刻技术制作两种硬度耦合四种拓扑结构(四方柱状、沟状、六边形、平面)的丙烯酰胺水凝胶基底,用于研究上述八种基底对人胚胎干细胞H1细胞系生长、分化的影响。
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