Luteinizing hormone receptor splicing variants in bovine Leydig cells.

Luteinizing hormone receptor splicing variants in bovine Leydig cells.
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牛 Leydig 细胞中的黄体生成素受体剪接变异体。

DOI:
10.4238/2012.june.29.4
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发表时间:
2012
期刊:
Genetics and molecular research : GMR
影响因子:
--
通讯作者:
Zhang Jb
Zhang Jb
中科院分区:
--
文献类型:
--
作者:
T. Ma;Qiuhong Xiong;Bao Yuan;Hao Jiang;Yanhang Gao;J. Xu;Siyuan Liu;Yu Ding;G. L. Zhang;Y. M. Zhao;Zhang Jb

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促黄体生成素受体(LHR)通过与促性腺激素、促黄体生成素和绒毛膜促性腺激素相互作用,在睾酮的产生中起关键作用。我们检测了LHR在牛间质细胞中的剪接模式;用实时荧光定量聚合酶链式反应检测了8个克隆的剪接变异体在黄体生成素诱导下的表达。黄体生成素作用于培养的间质细胞后,随着黄体生成素水平的升高,全长LHR及其A、B亚型的表达和睾酮的分泌先增加后下降,然后进一步增加。随着黄体生成素的增加,睾酮的分泌逐渐增加,但LHR(FL、A、B)的表达水平并没有相应的增加。我们的结论是,LHR在牛间质细胞中的剪接模式是复杂的,全长LHR及其异构体A和B的表达在黄体生成素诱导下发生了变化。
The luteinizing hormone receptor (LHR) plays a key role in testosterone production through its interaction with the gonadotropins, LH and chorionic gonadotropin. We examined the LHR splicing pattern in bovine Leydig cells; LH-induced expression of eight cloned splicing variants was detected by real-time PCR. Luteinizing hormone applied to cultured Leydig cells resulted in expression of full-length LHR and the A and B isoforms, as well as secretion of testosterone, which first increased, then declined, and then increased further, with increased LH levels. The secretion of testosterone progressively increased with increasing LH, but the expression levels of LHR (FL, A, and B) did not increase correspondingly. We conclude that the LHR splicing pattern is complex in bovine Leydig cells, and that expression of full-length LHR and isoforms A and B changes when induced with LH.
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