期刊
ELIFE
卷 12, 期 -, 页码 -出版社
eLIFE SCIENCES PUBL LTD
DOI: 10.7554/eLife.78421
关键词
LncRNA; germ cell; transcriptional regulation; LHX8; reproductive biology; human gonadal development; Human
类别
Non-coding RNAs, including long non-coding RNAs (lncRNAs), have important functions in shaping and directing the fate of germ cells during human gonadal development. Through comprehensive bioinformatic analysis and experimental verification, the presence and regulatory roles of lncRNAs, such as LNC1845, have been identified in female and male germ cells. These lncRNAs modulate the levels of histone modifications and have been shown to function as cis regulators of important transcription factors involved in ovarian follicle development.
Non-coding RNAs exert diverse functions in many cell types. In addition to transcription factors from coding genes, non-coding RNAs may also play essential roles in shaping and directing the fate of germ cells. The presence of many long non-coding RNAs (lncRNAs) which are specifically expressed in the germ cells during human gonadal development were reported and one divergent lncRNA, LNC1845, was functionally characterized. Comprehensive bioinformatic analysis of these lncRNAs indicates that divergent lncRNAs occupied the majority of female and male germ cells. Integrating lncRNA expression into the bioinformatic analysis also enhances the cell-type classification of female germ cells. Functional dissection using in vitro differentiation of human pluripotent stem cells to germ cells revealed the regulatory role of LNC1845 on a transcription factor essential for ovarian follicle development, LHX8, by modulating the levels of histone modifications, H3K4me3 and H3K27Ac. Hence, bioinformatical analysis and experimental verification provide a comprehensive analysis of lncRNAs in developing germ cells and elucidate how an lncRNA function as a cis regulator during human germ cell development.
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