中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (13): 2074-2080.doi: 10.3969/j.issn.2095-4344.2017.13.018

• 干细胞移植 stem cell transplantation • 上一篇    下一篇

胎盘间充质干细胞修复受损子宫内膜

牛  婷,李爱斌,陈  力   

  1. 武汉大学人民医院生殖中心,湖北省武汉市  430060
  • 修回日期:2016-12-09 出版日期:2017-05-08 发布日期:2017-06-09
  • 通讯作者: 李爱斌,博士,主任医师,武汉大学人民医院生殖中心,湖北省武汉市 430060
  • 作者简介:牛婷,女,1990年生,安徽省淮北市人,汉族,武汉大学人民医院在读硕士,主要从事生殖内分泌及不孕不育等方面的研究。
  • 基金资助:

    湖北省自然科学基金(2014CFB206)

The use of placental mesenchymal stem cells to repair the damaged endometrium

Niu Ting, Li Ai-bin, Chen Li   

  1. Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
  • Revised:2016-12-09 Online:2017-05-08 Published:2017-06-09
  • Contact: Li Ai-bin, M.D., Chief physician, Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
  • About author:Niu Ting, Studying for master’s degree, Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
  • Supported by:

    the Natural Science Foundation of Hubei Province, No. 2014CFB206

摘要:

文章快速阅读:

文题释义:
胎盘间充质干细胞:
是成体干细胞的一种,来源丰富,标本易于获取,且可向成骨细胞、神经细胞及肝细胞等方向分化,临床应用不存在免疫排斥、不涉及伦理问题等优点,因此被认为是成体干细胞的理想来源,在骨组织修复、血管损伤领域及妊娠期高血压疾病等方面均有关于胎盘间充质干细胞的实验研究。动物及临床研究均显示了胎盘间充质干细胞在现代细胞治疗领域及组织工程领域的巨大潜力。
整合素αvβ3:整合素是由α、β亚单位组成的细胞表面受体,αvβ3 在子宫内膜中的表达很重要。Lessey 等发现αvβ3 表达在排卵后的黄体中期的子宫内膜,早孕的蜕膜中也存在,与“着床窗”的时间相吻合。有研究者对行试管助孕患者的子宫内膜进行活检,然后检测子宫内膜组织ανβ3的表达情况,结果显示ανβ3表达较高的患者妊娠率也更高,很多研究表明整合素是子宫内膜容受性的标志之一,因而,ανβ3的表达强度可以作为评价修复效果的指标之一。

 

摘要
背景:
胎盘间充质干细胞来源丰富,易于获取,可向成骨细胞、神经细胞及肝细胞等方向分化,临床应用不存在免疫排斥、不涉及伦理问题等优点,因此被认为是成体干细胞的理想来源。
目的:观察同种异体胎盘间充质干细胞移植修复大鼠子宫内膜损伤的情况。
方法:取雌性SD大鼠,通过热损伤法建立子宫内膜损伤模型,造模后第15天,将造模成功的40只大鼠随机分为4组,宫腔移植组于宫腔局部注射同种异体胎盘间充质干细胞悬液1 mL,宫腔对照组于宫腔注射等量的PBS,尾静脉移植组于尾静脉注射同种异体胎盘间充质干细胞悬液1 mL,尾静脉对照组于尾静脉注射等量PBS。于大鼠第3个动情期时将造模雌鼠与雄鼠合笼,观察阴栓,在观察到阴栓的当天处死造模大鼠,游离出子宫组织,进行子宫内腺体计数、免疫组织化学及Western blot检测。
结果与结论:①腺体计数:宫腔移植组子宫内膜腺体数量多于其余3组(P < 0.05),尾静脉移植组多于宫腔对照组、尾静脉对照组(P  < 0.05);②子宫内膜整合素αVβ3表达:免疫组织化学及Western blot检测均显示宫腔移植组整合素αVβ3强于其余3组(P  < 0.05),尾静脉移植组多于宫腔对照组、尾静脉对照组(P  < 0.05);③结果表明:胎盘间充质干细胞移植可不同程度地修复大鼠子宫内膜损伤组织,增加子宫内膜腺体计数,改善子宫内膜容受性。

 

 

关键词: 干细胞, 移植, 胎盘间充质干细胞, 子宫内膜损伤, 修复, ανβ3, 湖北省自然科学基金

Abstract:

BACKGROUND: Placental mesenchymal stem cells are rich in source and easily obtained, which can differentiate into osteoblasts, nerve cells and liver cells. Additionally, there is no immune rejection and ethical issues in the clinical application. Therefore, placental mesenchymal stem cells are considered to be a good source of adult stem cells.
OBJECTIVE: To observe the effect of placental mesenchymal stem cell transplantation in the repair of endometrial lesions in rats.
METHODS: Endometrial damage models were established in rats by means of thermal damage, and on the 15th day after modeling, these rat models were randomly divided into four groups (n=10 per group): intrauterine injection of 1 mL of allogeneic placenta mesenchymal stem cell suspension (intrauterine transplantation group), intrauterine injection of the same amount of PBS (intrauterine control group), tail vein injection of 1 mL of allogeneic placenta mesenchymal stem cell suspension (intravenous transplantation group), and tail vein injection of the same amount of PBS (intravenous control group). The female rats experiencing the third estrus after modeling were caged with male rats to observe whether the vaginal plug appeared. The female rats were killed the same day when the vaginal plug was observed, and uterus tissues were taken to detect the number of endometrial glands as well as perform immunohistochemistry and western blot detection.
RESULTS AND CONCLUSION: The number of endometrial glands was highest in the intrauterine transplantation group followed by the intravenous transplantation group, and lowest in the two control groups (P < 0.05). The expression of integrin ανβ3 shown by immunohistochemistry and western blot was highest in the intrauterine transplantation group followed by the intravenous transplantation, and lowest in the two control groups (P < 0.05). These findings indicate that the placental mesenchymal stem cell transplantation can repair damaged endometrial tissues in rats to different degrees, by increasing endometrial glands count and improving the endometrial receptivity.

 

 

Key words: Stem Cell Transplantation, Endometrium, Placenta, Integrin alphaVbeta3, Tissue Engineering

中图分类号: