基础医学与临床 ›› 2015, Vol. 35 ›› Issue (11): 1481-1485.

• 研究论文 • 上一篇    下一篇

双氢睾酮对原代培养大鼠Sertoli细胞GDNF表达的调节

常青1,王丽梅1,黑常春1,蔡玉芳1,吴凯1,孔斌1,朱万平1,沈新生1,赵承军2   

  1. 1. 宁夏医科大学基础医学院
    2. 宁夏医科大学
  • 收稿日期:2015-03-23 修回日期:2015-08-13 出版日期:2015-11-05 发布日期:2015-11-03
  • 通讯作者: 赵承军 E-mail:yczcj@126.com
  • 基金资助:
    促卵泡激素对睾丸支持细胞胶质细胞源性神经营养因子表达调节的机理研究;性相关激素对同种异体移植睾丸影响的研究

Regulation of dihydrotestosterone on the expression of GDNF in primary cultured rat Sertoli cell

  • Received:2015-03-23 Revised:2015-08-13 Online:2015-11-05 Published:2015-11-03
  • Supported by:
    The study of regulation mechanism of follice-stimulating hormone on GFNF experssion in Sertoli cell???;Study of the effects of sex hormone on allograftic testis

摘要: 目的 观察双氢睾酮对原代培养大鼠Sertoli细胞GDNF及相关细胞信号通路关键蛋白的表达,探讨Sertoli细胞GDNF表达调控的机理。方法 原代培养出生后20d大鼠Sertoli细胞,给予双氢睾酮干预,免疫荧光检测GDNF在细胞中定位和表达强度,Western blot检测GDNF,ERK和CREB蛋白的表达及磷酸化情况,并用ERK和cAMP/PKA信号通路抑制剂干预。结果 GDNF表达在Sertoli细胞质中,双氢睾酮干预可增加GDNF的表达(P<0.05),并使ERK和CREB磷酸化水平增高(P<0.05),使用ERK和cAMP/PKA信号通路抑制剂可减低双氢睾酮诱导的GDNF表达(P<0.05)。结论 双氢睾酮通过激活ERK信号通路诱导Sertoli细胞GDNF的表达。

关键词: 双氢睾酮, Sertoli细胞, GDNF , ERK

Abstract: Objective To study the effects of Dihydrotestosterone (DHT) on the expression of GDNF and the changes of signaling pathway in primary cultured rat Sertoli cells. Method the primary cultured 20 days old sertoli cells stimulateused by DHT, immumofluorescence was used to detect the localization and expression of GDNF in Sertoli cell, Western-blot to detect the expressions of GDNF, ERK1/2 and CREB , and the phosphorylations of ERK1/2 and CREB. while the inhibitors of ERK and cAMP/PKA signaling pathway were used. Result GDNF expressed in cytoplasm of Sertoli cell. DHT promoted the expression of GDNF, while the levels of ERK1/2 and CREB phosphorylation were increased. U0126 and H89 decreased the GDNF expression induced by DHT. Conclusion DHT stimulated the expression of GDNF of Setoli cell by activing the ERK signaling pathway.

Key words: Dihydrotestosterone, Sertoli cell, GDNF, ERK