Oocyte specific lncRNA variant Rose influences oocyte and embryo development.

Oocyte specific lncRNA variant Rose influences oocyte and embryo development.
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卵母细胞特异性lncRNA变体Rose影响卵母细胞和胚胎发育。

DOI:
10.1016/j.ncrna.2021.06.001
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发表时间:
2021-06
影响因子:
5
通讯作者:
Susor A
Susor A
中科院分区:
生物学4区
文献类型:
--
作者:
Iyyappan R;Aleshkina D;Zhu L;Jiang Z;Kinterova V;Susor A

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完全发育的哺乳动物卵母细胞储存了大量在转录活跃生长阶段合成的RNA。储存的大部分RNA属于长非编码类,它们包含转录噪声或细胞生理学的重要贡献者。尽管与lncrna相关的研究越来越多,但它们对卵母细胞生理的影响仍然是一个谜。我们发现了卵母细胞特异性反义长链非编码RNA“Rose”(lncRNA in oocyte specific expression)在两个变体中表达,分别包含两个和三个非编码外显子。玫瑰定位于转录活跃的卵母细胞细胞核和细胞质中多体占有的胚胎中。在完全成熟的卵母细胞中过表达Rose对减数分裂成熟没有任何影响。然而,敲除Rose会导致卵母细胞分裂异常和着床前胚胎发育受损。总之,我们已经确定了一个卵母细胞特异性lncRNA,它对哺乳动物卵母细胞和胚胎的成功发育至关重要。
Fully grown mammalian oocytes store a large amount of RNA synthesized during the transcriptionally active growth stage. A large part of the stored RNA belongs to the long non-coding class which contain either transcriptional noise or important contributors to cellular physiology. Despite the expanding number of studies related to lncRNAs, their influence on oocyte physiology remains enigmatic. We found an oocyte specific antisense, long non-coding RNA, “Rose” (lncRNA in Oocyte Specifically Expressed) expressed in two variants containing two and three non-coding exons, respectively. Rose is localized in the nucleus of transcriptionally active oocyte and in embryo with polysomal occupancy in the cytoplasm. Experimental overexpression of Rose in fully grown oocyte did not show any differences in meiotic maturation. However, knocking down Rose resulted in abnormalities in oocyte cytokinesis and impaired preimplantation embryo development. In conclusion, we have identified an oocyte-specific maternal lncRNA that is essential for successful mammalian oocyte and embryo development.
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