ALKBH5 Protects Against Hepatic Ischemia-Reperfusion Injury by Regulating YTHDF1-Mediated YAP Expression

Overview

Journal Int J Mol Sci

Publisher MDPI

Specialties Biochemistry
Chemistry
Molecular Biology

Date 2024 Nov 9

PMID 39519091

Authors

Pixiao Wang

Mei Xiang

Ling Zhu

Rixin Zhang

Xiaolin Zheng

Zhi Zheng

Kai Li

Affiliations

Soon will be listed here.

Abstract

Ischemia/reperfusion (I/R) injury with severe cell death is a major complication involved in liver transplantation and resection. The identification of key regulators improving hepatocyte activity may provide potential strategies to clinically resolve I/R-induced injury. N-methyladenosine (mA) RNA modification is essential for tissue homeostasis and pathogenesis. However, the potential involvement of mA in the regulation of hepatocyte activity and liver injury has not been fully explored. In the present study, we found that hepatocyte AlkB homolog H5 (ALKBH5) levels were decreased both in vivo and in vitro I/R models. Hepatocyte-specific ALKBH5 overexpression effectively attenuated I/R-induced liver necrosis and improved cell proliferation in mice. Mechanistically, ALKBH5-mediated mA demethylation improved the mRNA stability of YTH N-methyladenosine RNA-binding protein 1 (YTHDF1), thereby increasing its expression, which consequently promoted the translation of Yes-associated protein (YAP). In conclusion, ALKBH5 is a regulator of hepatic I/R injury that improves hepatocyte repair and proliferation by maintaining YTHDF1 stability and YAP content. The ALKBH5-mA-YTHDF1-YAP axis represents promising therapeutic targets for hepatic I/R injury to improve the prognosis of liver surgery.

Citing Articles

FTO Alleviates Hepatic Ischemia-Reperfusion Injury by Regulating Apoptosis and Autophagy.

Wang P, Zhu L, Xiang M, Zhang R, Zheng X, Zheng Z Gastroenterol Res Pract. 2025; 2025():5587859.

PMID: 39811145 PMC: 11730018. DOI: 10.1155/grp/5587859.

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