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Dispensable role of PTEN in mouse spermatogenesis.

机译:PTEN在小鼠精子发生中的重要作用。

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PTEN (phosphatase and tensin homologue deleted on chromosome ten) plays critical roles in multiple cellular processes, including cell proliferation, survival, migration and transformation. A role of PTEN in mammalian spermatogenesis, however, has not been explored. To address this question, we generated a mouse model with PTEN conditional knockout in postnatal male germ cells. We found that spermatogenesis was normal in PTEN-deleted male germ cells. PTEN conditional mutant males produced sperm and sired offspring as competently as wild-type littermates. Moreover, our biochemical analysis also indicated that the Akt (acutely transforming retrovirus AKT8 in rodent T cell lymphoma) signalling pathway was not affected in mutant testis. Taken together, these findings demonstrate that PTEN is dispensable in mouse spermatogenesis.
机译:PTEN(在第10号染色体上缺失的磷酸酶和张力蛋白同源物)在多种细胞过程中起着关键作用,包括细胞增殖,存活,迁移和转化。然而,尚未探索PTEN在哺乳动物精子发生中的作用。为了解决这个问题,我们在产后雄性生殖细胞中建立了PTEN条件敲除小鼠模型。我们发现精子发生在PTEN缺失的男性生殖细胞中是正常的。 PTEN条件性突变雄性产生的精子和后代与野生型同窝仔一样胜任。此外,我们的生化分析还表明,突变型睾丸中的Akt(啮齿类T细胞淋巴瘤中的急性转化逆转录病毒AKT8)信号通路不受影响。综上所述,这些发现证明PTEN在小鼠精子发生中是可有可无的。

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