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- W3209655739 abstract "Lipid metabolism is essential for stemness maintenance, self-renewal, and differentiation of stem cells, however, the regulatory function of cholesterol metabolism in erythroid differentiation is poorly studied. In the present study, a critical role for cholesterol homeostasis in terminal erythropoiesis is uncovered. The master transcriptional factor GATA1 binds to Sterol-regulatory element binding protein 2 (SREBP2) to downregulate cholesterol biosynthesis, leading to a gradual reduction in intracellular cholesterol levels. It is further shown that reduced cholesterol functions to block erythroid proliferation via the cholesterol/mTORC1/ribosome biogenesis axis, which coordinates cell cycle exit in the late stages of erythroid differentiation. The interaction of GATA1 and SREBP2 also provides a feedback loop for regulating globin expression through the transcriptional control of NFE2 by SREBP2. Importantly, it is shown that disrupting intracellular cholesterol hemostasis resulted in defect of terminal erythroid differentiation in vivo. These findings demonstrate that fine-tuning of cholesterol homeostasis emerges as a key mechanism for regulating erythropoiesis." @default.
- W3209655739 created "2021-11-08" @default.
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- W3209655739 date "2021-11-05" @default.
- W3209655739 modified "2023-10-05" @default.
- W3209655739 title "Fine‐Tuning of Cholesterol Homeostasis Controls Erythroid Differentiation" @default.
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- W3209655739 doi "https://doi.org/10.1002/advs.202102669" @default.
- W3209655739 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34739188" @default.
- W3209655739 hasPublicationYear "2021" @default.
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