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p53 coordinates glucose and choline metabolism during the mesendoderm differentiation of human embryonic stem cells. 2020
Gaoyang Zhu, and
Yue Ying, and
Kaiyuan Ji, and
Xinyue Duan, and
Taoyi Mai, and
Jinchul Kim, and
Qingjiao Li, and
Lili Yu, and
Yang Xu
Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan, Guangdong 528308, China.
Metabolism plays crucial roles in the fate decision of human embryonic stem cells (hESCs). Here, we show that the depletion of p53 in hESCs enhances glycolysis and reduces oxidative phosphorylation, and delays mesendoderm differentiation of hESCs. More intriguingly, the disruption of p53 in hESCs leads to dramatic upregulation of phosphatidylcholine and decrease of total choline in both pluripotent and differentiated state of hESCs, suggesting abnormal choline metabolism in the absence of p53. Collectively, our study reveals the indispensable role of p53 in orchestrating both glucose and lipid metabolism to maintain proper hESC identity.
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