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胚胎干细胞源性表皮干细胞在腹腔微环境中分化潜能的初步研究
Authors
程树军
Publication date
1 January 2004
Publisher
Editorial Office of Journal of Sun Yat-sen University
Abstract
目的】 探讨胚胎干细胞源性的表皮干细胞在腹腔微环境中的分化情况,为研究其在不同微环境中的分化稳定性和全能性及寻找新的皮肤工程种子细胞奠定基础?【方法】 小鼠ES E14细胞与人羊膜共培养4~5 d,定向诱导其分化为表皮样干细胞克隆,它们呈β1整合素?CK15和CK19阳性,移植入裸鼠腹腔?对移植后细胞的分化情况进行形态学和CEA?CK10?CK18?CK19免疫组织化学观察?【结果】 小鼠胚胎干细胞源性表皮样干细胞在裸鼠腹腔内1~4周,细胞分化为由单层或复层上皮样细胞构成的管状和泡状结构?种植5周后,除上述结构外,可见角化复层扁平上皮?毛囊样?汗腺样及皮脂腺样等结构?免疫组化表明汗腺样结构分别呈CEA和CK18阳性,而角化复层扁平上皮的基底层细胞分别呈CK19和CK10阳性?【结论】 初步结果表明小鼠胚胎干细胞源性表皮样干细胞在腹腔微环境下同样具有分化为角化复层上皮?毛囊样?汗腺样和皮脂腺样结构的潜能
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Last time updated on 15/10/2024