Sci Rep:睾丸障壁完整性依赖Pin1在睾丸支持细胞中的表达

2017-08-07 AlexYang MedSci原创

一部分丝氨酸和苏氨酸磷酸化的蛋白的构造和功能可通过脯氨酰异构酶Pin1来进行调控,机理是磷酸化的Ser/Thr-Pro结合键的异构化作用。Pin1可在睾丸支持细胞中高度表达,但是它在这个有丝分裂后细胞中的作用并不清楚。最近,有研究人员调查了Pin1在睾丸支持细胞中的作用。研究发现,Pin1的缺失可以引起睾丸障壁的破坏。之后,研究人员通过在睾丸组织中与Smad3蛋白的免疫染色,调查了是否睾丸支持细胞

一部分丝氨酸和苏氨酸磷酸化的蛋白的构造和功能可通过脯氨酰异构酶Pin1来进行调控,机理是磷酸化的Ser/Thr-Pro结合键的异构化作用。Pin1可在睾丸支持细胞中高度表达,但是它在这个有丝分裂后细胞中的作用并不清楚。

最近,有研究人员调查了Pin1在睾丸支持细胞中的作用。研究发现,Pin1的缺失可以引起睾丸障壁的破坏。之后,研究人员通过在睾丸组织中与Smad3蛋白的免疫染色,调查了是否睾丸支持细胞中的激活素通路受Pin1缺失的影响。研究发现,Pin1的缺乏确实可以引起睾丸组织中Smad3表达的减少,同样,N-钙粘着蛋白,Smad3的作用靶标,含量水平也减少了。另外,Pin1-/- 检测表达睾丸支持细胞标记的mRNA与在小鼠中Smad3+/-观察到的相似,除了Wt1表达量的增加。最后,研究人员指出,Pin1缺失而引起的N-钙粘着蛋白、连接蛋白43和Wt1靶标的异常调节影响了睾丸支持细胞间质-上皮转化的平衡,并且干扰了睾丸障壁。Pin1剂量在睾丸支持细胞中的影响也许在毒物调节的不育、性腺癌以及设计男性避孕药方面非常有用。

原始出处:

Rabia Islam, Heein Yoon, Bong-soo Kim et al. Blood-testis barrier integrity depends on Pin1 expression in Sertoli cells. Sci Rep. 01 August 2017.

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    2018-03-29 zhangyxzsh
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    2017-08-09 zhangph
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    2017-08-08 184****9840

    学习了谢谢分享

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    2017-08-08 189****1577

    值得推荐一下

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