The non-redundant functions of PIWI family proteins in gametogenesis in golden hamsters.

The non-redundant functions of PIWI family proteins in gametogenesis in golden hamsters.
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Piwi家族蛋白在金仓鼠中的配子发生中的非冗余功能。

DOI:
10.1038/s41467-023-40650-x
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发表时间:
2023-08-29
影响因子:
16.6
通讯作者:
Wu, Ligang
Wu, Ligang
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Lv, Xiaolong;Xiao, Wen;Lai, Yana;Zhang, Zhaozhen;Zhang, Hongdao;Qiu, Chen;Hou, Li;Chen, Qin;Wang, Duanduan;Gao, Yun;Song, Yuanyuan;Shui, Xinjia;Chen, Qinghua;Qin, Ruixin;Liang, Shuang;Zeng, Wentao;Shi, Aimin;Li, Jianmin;Wu, Ligang

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皮尔纳通路对于金仓鼠和可能的人类中的雌性生育力是必需的,但在小鼠中不是。然而,个别PIWI在哺乳动物生殖中的作用在小鼠之外仍然知之甚少。在这里,我们描述的表达谱,亚细胞定位,和敲除相关的生殖缺陷的所有四个PIWI在金黄色仓鼠。在雌性金黄仓鼠中,PIWIL 1和PIWIL 3在整个卵子发生和早期胚胎发生中高度表达,而PIWIL 1的敲除导致不育,PIWIL 3缺乏导致受精力低下,合子发育滞后。PIWIL 1可以部分补偿PIWIL 3敲除雌性中的TE沉默,但反之亦然。PIWIL 1和PIWIL 4分别是在成年和出生后睾丸中表达的主要PIWI,而PIWIL 2存在于这两个阶段。睾丸中表达的任何PIWI的缺失导致不育和严重但明显的精子发生障碍。这些发现说明了PIWI-piRNA在金仓鼠的配子发生和早期胚胎发生中的非冗余调节功能,促进了它们在人类生育力中的作用的研究。PIWI蛋白在哺乳动物生殖中的作用仍然知之甚少。在这里,使用金黄仓鼠,作者建立了配子发生过程中所有四种PIWI的表达谱,并描述了其相关的生殖缺陷。
The piRNA pathway is essential for female fertility in golden hamsters and likely humans, but not in mice. However, the role of individual PIWIs in mammalian reproduction remains poorly understood outside of mice. Here, we describe the expression profiles, subcellular localization, and knockout-associated reproductive defects for all four PIWIs in golden hamsters. In female golden hamsters, PIWIL1 and PIWIL3 are highly expressed throughout oogenesis and early embryogenesis, while knockout of PIWIL1 leads to sterility, and PIWIL3 deficiency results in subfertility with lagging zygotic development. PIWIL1 can partially compensate for TE silencing in PIWIL3 knockout females, but not vice versa. PIWIL1 and PIWIL4 are the predominant PIWIs expressed in adult and postnatal testes, respectively, while PIWIL2 is present at both stages. Loss of any PIWI expressed in testes leads to sterility and severe but distinct spermatogenesis disorders. These findings illustrate the non-redundant regulatory functions of PIWI-piRNAs in gametogenesis and early embryogenesis in golden hamsters, facilitating study of their role in human fertility. The role of PIWI proteins in mammalian reproduction remains poorly understood. Here, using golden hamsters, the authors establish expression profiles for all four PIWIs during gametogenesis and characterize their associated reproductive defects.
金仓鼠中精子和肥沃的卵母细胞的形成需要PIRNA。
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发表时间: 2021-09
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