Role of microRNAs in mammalian spermatogenesis and testicular germ cell tumors.

Role of microRNAs in mammalian spermatogenesis and testicular germ cell tumors.
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microRNA 在哺乳动物精子发生和睾丸生殖细胞肿瘤中的作用。

DOI:
10.1530/rep-14-0239
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发表时间:
2015-03
期刊:
影响因子:
3.8
通讯作者:
Xu Chen
Xu Chen
中科院分区:
生物学3区
文献类型:
--
作者:
Wang Li;Xu Chen

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microRNA(miRNAs)是一类内源性小RNA,大小为19-25个核苷酸,在转录和转录后水平上对基因表达起调控作用。精子发生是精原干细胞增殖、分化为成熟精子的一个复杂过程。大量的miRNAs在生精细胞中大量表达。越来越多的证据支持miRNA调控在正常精子发生和男性生育力中的重要作用,累积研究表明这种形式的调控有助于睾丸生殖细胞肿瘤(TGCT)的病因学。本文就miRNA在睾丸组织中的表达谱研究进展进行综述,重点介绍miRNA在SSC更新、精原细胞有丝分裂、精母细胞减数分裂、精子发生以及TGCT发生中的调控作用。
microRNAs (miRNAs) are a class of small endogenous RNAs, 19-25 nucleotides in size, which play a role in the regulation of gene expression at transcriptional and post-transcriptional levels. Spermatogenesis is a complex process through which spermatogonial stem cells (SSCs) proliferate and differentiate into mature spermatozoa. A large number of miRNAs are abundantly expressed in spermatogenic cells. Growing evidence supports the essential role of miRNA regulation in normal spermatogenesis and male fertility and cumulative research has shown that this form of regulation contributes to the etiology of testicular germ cell tumors (TGCTs). In this review, we addressed recent advancements of miRNA expression profiles in testis and focused on the regulatory functions of miRNA in the process of SSC renewal, spermatogonial mitosis, spermatocyte meiosis, spermiogenesis, and the occurrence of TGCTs.
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