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乏氧环境下骨骺干细胞株在仿生矿化支架材料中的相容性及增殖和矿化的实验研究 被引量:2

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摘要 目的 观察在乏氧环境下转染甲状旁腺相关肽(PTHrP)基因的骨骺干细胞株与组织工程支架材料的相容性,以及细胞在材料中的增殖、分化及矿化作用。方法 乏氧环境下,携带骨骺干细胞株的仿生矿化的多孔材料置于含不同浓度低氧诱导因子(HIF)-1(0-160 pmol/L)的培养诱导液中培养,进行形态学观察、扫描电镜观察及四唑盐比色法(MTT)测定,了解细胞增殖及黏附情况;培养4周后,扫描电镜观察多孔材料中矿化结节的形成情况。结果 细胞在载体上黏附率90.5%,乏氧环境下转基因骨骺干细胞与仿生矿化多孔材料具有良好的相容性,HIF-1对细胞增殖、分化及矿化有促进作用,4周时可见新生类骨样组织形成。结论 乏氧环境下转基因骨骺干细胞与仿生矿化多孔材料相容性良好,黏附能力强,HIF-1能促进细胞增殖、分化成骨,其作用有一定的剂量依赖性。
机构地区 宁波市第二医院
出处 《现代实用医学》 2015年第7期940-942,F0004,共4页 Modern Practical Medicine
基金 浙江省医药卫生科学研究基金(2007A173)
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参考文献10

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