A distinct isoform of ZNF207 controls self-renewal and pluripotency of human embryonic stem cells.

A distinct isoform of ZNF207 controls self-renewal and pluripotency of human embryonic stem cells.
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DOI:
10.1038/s41467-018-06908-5
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发表时间:
2018-10-22
影响因子:
16.6
通讯作者:
Reijo Pera RA
Reijo Pera RA
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Fang F;Xia N;Angulo B;Carey J;Cady Z;Durruthy-Durruthy J;Bennett T;Sebastiano V;Reijo Pera RA

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人类胚胎干细胞(hESC)的自我更新和多能性取决于非常少量的主转录因子(TF)的功能,包括OCT 4,SOX 2和NANOG。调节和维持hESC中主TF表达的内源性因子在很大程度上仍然未知和/或未表征。在这里,我们使用全基因组蛋白质组学方法来鉴定与OCT 4增强子相关的蛋白质。我们确定了已知的OCT 4调节剂,加上一个潜在的调节剂,包括锌指蛋白,ZNF 207,在发展过程中发挥不同的作用。在hESC中,ZNF 207与主多能性TF合作以管理自我更新和多能性,同时通过直接调节神经元TF(包括OTX 2)来控制细胞向外胚层的定型。ZNF 207在分化过程中的独特作用通过同种型转换发生。因此,ZNF 207的不同亚型在hESC中在平衡多能性和向外胚层分化的关系处起作用。人胚胎干细胞(human embryonic stem cells,hESC)的自我更新和多能性依赖于转录因子OCT 4的功能。在这里,作者鉴定了与OCT 4增强子相关的蛋白质,特别是ZNF 207,它通过同种型转换保持多能性和向外胚层分化。
Self-renewal and pluripotency in human embryonic stem cells (hESCs) depends upon the function of a remarkably small number of master transcription factors (TFs) that include OCT4, SOX2, and NANOG. Endogenous factors that regulate and maintain the expression of master TFs in hESCs remain largely unknown and/or uncharacterized. Here, we use a genome-wide, proteomics approach to identify proteins associated with the OCT4 enhancer. We identify known OCT4 regulators, plus a subset of potential regulators including a zinc finger protein, ZNF207, that plays diverse roles during development. In hESCs, ZNF207 partners with master pluripotency TFs to govern self-renewal and pluripotency while simultaneously controlling commitment of cells towards ectoderm through direct regulation of neuronal TFs, including OTX2. The distinct roles of ZNF207 during differentiation occur via isoform switching. Thus, a distinct isoform of ZNF207 functions in hESCs at the nexus that balances pluripotency and differentiation to ectoderm. Self-renewal and pluripotency of human embryonic stem cells (hESCs) depends upon the function of the transcription factor OCT4. Here, the authors identified proteins associated with the OCT4 enhancer, notably ZNF207 that maintains both pluripotency and differentiation towards ectoderm through isoform switching.
克隆衍生的人类胚胎干细胞系在长期培养过程中保持多能性和增殖潜力
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