中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (14): 2098-2103.doi: 10.3969/j.issn.2095-4344.2016.14.018

• 干细胞培养与分化 stem cell culture and differentiation • 上一篇    下一篇

人早孕蜕膜组织子宫内膜间质干细胞向子宫内膜上皮细胞的分化

陈 波   

  1. 菏泽市立医院产科,山东省菏泽市 274031
  • 收稿日期:2016-02-19 出版日期:2016-04-01 发布日期:2016-04-01

Endometrial stromal stem cells from early-pregnancy decidua differentiate into endometrial epithelial cells

Chen Bo   

  1. Department of Obstetrics, Heze Municipal Hospital, Heze 274031, Shandong Province, China
  • Received:2016-02-19 Online:2016-04-01 Published:2016-04-01

摘要:

文章快速阅读:

 

文题释义:
蜕膜组织:是子宫内膜间质受蜕膜化诱导因子刺激而增殖和再分化形成的一种特殊组织,它对于妊娠的建立和维持至关重要。
上皮细胞:是位于皮肤或腔道表层的细胞。上皮细胞根据器官的不同而有所不同:尿常规的上皮细胞,是衰亡、脱落的皮细胞,没有很特定的指向意义。
 
背景:蜕膜组织是重要的子宫内膜干细胞来源之一,从蜕膜组织中可分离出间充质干细胞。通过对其进行一定的诱导,可分化为不同的细胞类型。
目的:从人早孕蜕膜组织中分离得到子宫内膜间质干细胞,对其进行诱导分化,观察其向子宫内膜上皮细胞分化的情况。
方法:获得人早孕蜕膜组织,进行子宫内膜间质干细胞分离培养和鉴定。对子宫内膜间质干细胞进行定向分化诱,进行实验分组,分别为实验组(子宫内膜条件培养液)和对照组(含胎牛血清的正常培养基),利用免疫荧光法检测角蛋白表达情况。并进行Western bolt检测,检测实验组与对照组细胞的角蛋白相对表达量。
结果与结论:①从人早孕蜕膜组织中成功分离培养获得子宫内膜间质干细胞,细胞体外生长曲线呈“S”形,接种后1-48 h,曲线平缓上升,细胞处于适应期。接种48 h之后,曲线陡峭上升,细胞增殖速度加快,进入对数期;接种60 h之后,细胞生长速度下降,曲线平稳上升;②经流式细胞仪检测,子宫内膜间质干细胞可以表达CD73、CD90,不表达CD34、CD45、细胞角蛋白;③经免疫荧光检测,角蛋白表达方面,对照组不表达,实验组大部分细胞均呈阳性表达;④经Western bolt检测,实验组细胞的角蛋白相对表达量显著高于对照组(P < 0.05);⑤实验结果表明,从人早孕蜕膜组织中可以分离获得子宫内膜间质干细胞,通过对细胞进行定向诱导,可以使其向子宫内膜上皮细胞发生分化。
中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程
ORCID: 0000-0002-8634-1310(陈波)

关键词: 干细胞, 培养, 子宫内膜干细胞, 子宫, 子宫内膜, 干细胞, 间质干细胞, 蜕膜组织, 细胞分化, 上皮细胞

Abstract:

BACKGROUND: Decidua tissue is one of the most important sources of endometrial stem cells, from which stromal stem cells can differentiate into various kinds of cells under contain inductions.

OBJECTIVE: To observe the differentiation of endometrial stromal stem cells isolated from early-pregnancy decidua into endometrial epithelial cells.
METHODS: Endometrial stromal stem cells from early-pregnancy decidua were cultured, identified and directionally induced. Then induced cells were randomized into test group cultured in conditioned medium and control group cultured in normal culture medium containing fetal bovine serum. Expression of keratin was detected by immunofluorescence assay and western bolt assay in the two groups.
RESULTS AND CONCLUSION: The endometrial stromal stem cells from early-pregnancy decidua were successfully isolated and cultured, and presented with a S-shaped curve. Within 1-48 hours after inoculation, cultured cells were in the adaptation phase; then, the cells proliferated rapidly and began to grow logarithmically at 48 hours after culture; after 60 hours of culture, the cell growth rate decreased, with a steady rise in the cell curve. Results from the flow cytometry detection showed that the endometrial stromal stem cells could express CD73 and CD90, but not express CD34, CD45 and cytokeratin. Immunofluorescence findings showed the expression of keratin negative in the control group, and mostly positive in the test group. Besides, the relative expression of keratin in the test group was significantly higher than that in the control group (P < 0.05). These results suggest that the endometrial stromal stem cells can be isolated from the human decidua in early pregnancy, and differentiate into endometrial epithelial cells by directional induction.
中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

Key words: Uterus, Stem Cells, Decidua, Tissue Engineering