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  • 标题:Translational and post-translational control of human naïve versus primed pluripotency
  • 本地全文:下载
  • 作者:Cheng Chen ; Xiaobing Zhang ; Yisha Wang
  • 期刊名称:iScience
  • 印刷版ISSN:2589-0042
  • 出版年度:2022
  • 卷号:25
  • 期号:1
  • 页码:1-34
  • DOI:10.1016/j.isci.2021.103645
  • 语种:English
  • 出版社:Elsevier
  • 摘要:SummaryDeciphering the regulatory network for human naive and primed pluripotency is of fundamental theoretical and applicable significance. Here, by combining quantitative proteomics, phosphoproteomics, and acetylproteomics analyses, we revealed RNA processing and translation as the most differentially regulated processes between naive and primed human embryonic stem cells (hESCs). Although glycolytic primed hESCs rely predominantly on the eukaryotic initiation factor 4E (eIF4E)-mediated cap-dependent pathway for protein translation, naive hESCs with reduced mammalian target of rapamycin complex (mTORC1) activity are more tolerant to eIF4E inhibition, and their bivalent metabolism allows for translating selective mRNAs via both eIF4E-dependent and eIF4E-independent/eIF4A2-dependent pathways to form a more compact naive proteome. Globally up-regulated proteostasis and down-regulated post-translational modifications help to further refine the naive proteome that is compatible with the more rapid cycling of naive hESCs, where CDK1 plays an indispensable coordinative role. These findings may assist in better understanding the unrestricted lineage potential of naive hESCs and in further optimizing conditions for future clinical applicationsGraphical abstractDisplay OmittedHighlights•RNA processing and translation are most different between naive and primed hESCs•Glycolytic primed hESCs mainly rely on eIF4E-dependent translation•Bivalent metabolism in naive hESCs promotes eIF4E-independent translation•CDK1 is required for naive pluripotency partially by activating E-cadherin signalingMolecular biology; Stem cells research; Proteomics
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