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过表达细胞周期蛋白的Dl对成熟表皮细胞去分化为表皮干细胞的作用 被引量:1

Overexpression of CCND1 promote mature epidermal cells to differentiate into epidermal item cells
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摘要 目的:观察过表达细胞周期蛋白D1(CCND1)对成熟表皮细胞去分化为表皮干细胞的调控作用。方法:构建携带CCND1基因的真核表达载体PEGFP-N1-CCND1,将PEGFP-N1-CCND1转染人成熟表皮细胞,5 d后,倒置显微镜下观察细胞形态;细胞计数法观察细胞的增殖情况;免疫荧光法检测表皮干细胞标志抗原β1整合素和成熟表皮细胞标志抗原CK10的表达变化。结果:转染PEGFP-N1-CCND1后,细胞体积变小,核浆比例增大;细胞增殖较快,细胞数量比对照组增加了4倍(P<0.01);表型检测结果显示,转染PEGFP-N1-CCND1组,表达干细胞标志性蛋白β1整合素表达阳性,成熟表皮细胞标志性蛋白CK10表达阴性,而转染空载体组则相反。结论:CCND1过表达能够诱导成熟表皮细胞去分化为表皮干细胞。
出处 《中国应用生理学杂志》 CAS CSCD 2016年第3期263-265,I0005,共4页 Chinese Journal of Applied Physiology
基金 国家973计划资助项目(2012CB518105) 国家自然科学基金面上项目(81571905 81121004 81230041 81171798)
关键词 CCND1 去分化 表皮干细胞 成熟表皮细胞 cyclin D1 dedifferentiation epidermal stem cells mature skin cells
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