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ID

doi:10.1038/s41392-022-01017-8

Author
Li, Jin-Tao Yang, Hai Lei, Ming-Zhu Zhu, Wei-Ping Su, Ying Li, Kai-Yue Zhu, Wen-Ying Wang, Jian Zhang, Lei Qu, Jia Lv, Lei Lu, Hao-Jie Chen, Zheng-Jun Wang, Lu Yin, Miao Lei, Qun-Ying
Langue
en
Editor

Nature

Category

Medicine & Public Health

Year

2022

listing date

7/5/2022

Keywords
tissues one-carbon diet hfd-induced cancer protein development matiiα hcc methionine metabolism folate
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Abstract

Folic acid, served as dietary supplement, is closely linked to one-carbon metabolism and methionine metabolism. Previous clinical evidence indicated that folic acid supplementation displays dual effect on cancer development, promoting or suppressing tumor formation and progression. However, the underlying mechanism remains to be uncovered. Here, we report that high-folate diet significantly promotes cancer development in mice with hepatocellular carcinoma (HCC) induced by DEN/high-fat diet (HFD), simultaneously with increased expression of methionine adenosyltransferase 2A (gene name, MAT2A; protein name, MATIIα), the key enzyme in methionine metabolism, and acceleration of methionine cycle in cancer tissues. In contrast, folate-free diet reduces MATIIα expression and impedes HFD-induced HCC development. Notably, methionine metabolism is dynamically reprogrammed with valosin-containing protein p97/p47 complex-interacting protein (VCIP135) which functions as a deubiquitylating enzyme to bind and stabilize MATIIα in response to folic acid signal. Consistently, upregulation of MATIIα expression is positively correlated with increased VCIP135 protein level in human HCC tissues compared to adjacent tissues. Furthermore, liver-specific knockout of Mat2a remarkably abolishes the advocating effect of folic acid on HFD-induced HCC, demonstrating that the effect of high or free folate-diet on HFD-induced HCC relies on Mat2a . Moreover, folate and multiple intermediate metabolites in one-carbon metabolism are significantly decreased in vivo and in vitro upon Mat2a deletion. Together, folate promotes the integration of methionine and one-carbon metabolism, contributing to HCC development via hijacking MATIIα metabolic pathway. This study provides insight into folate-promoted cancer development, strongly recommending the tailor-made folate supplement guideline for both sub-healthy populations and patients with cancer expressing high level of MATIIα expression.

Li, Jin-Tao,Yang, Hai,Lei, Ming-Zhu,Zhu, Wei-Ping,Su, Ying,Li, Kai-Yue,Zhu, Wen-Ying,Wang, Jian,Zhang, Lei,Qu, Jia,Lv, Lei,Lu, Hao-Jie,Chen, Zheng-Jun,Wang, Lu,Yin, Miao,Lei, Qun-Ying, 2022, Dietary folate drives methionine metabolism to promote cancer development by stabilizing MAT IIA, Nature

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