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ResearchIn-Press PreviewCell biologyHepatologyMetabolism Open Access | 10.1172/JCI205758

Epigenetic regulation of DOT1L methyltransferase activityremodels lipid metabolism to alleviate ferroptosis-induced liver injury

Jia-ming Hu,1 Shuo Liu,2 Zheng-ze Pan,3 Yi-jia Gao,4 Wei-wei Cui,3 Xiao Zhuang,3 Rong Wang,5 Ya-jing Han,5 Jia-xing Liu,6 Xiang-chuang Fan,6 Dan-dan Song,3 Zi-yang Zhang,6 Wan-yang Sun,5 Zong-li Zhang,1 Rong-rong He,5 Yun-fei Xu,1 Wei Gu,7 Chang Pan,8 and Bo Chu3

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by Hu, J. in: PubMed | Google Scholar

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by Liu, S. in: PubMed | Google Scholar

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by Pan, Z. in: PubMed | Google Scholar

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by Gao, Y. in: PubMed | Google Scholar

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by Cui, W. in: PubMed | Google Scholar

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by Zhuang, X. in: PubMed | Google Scholar

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by Wang, R. in: PubMed | Google Scholar

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by Han, Y. in: PubMed | Google Scholar

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by Liu, J. in: PubMed | Google Scholar

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by Fan, X. in: PubMed | Google Scholar

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by Song, D. in: PubMed | Google Scholar

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by Zhang, Z. in: PubMed | Google Scholar

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by Sun, W. in: PubMed | Google Scholar

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by Zhang, Z. in: PubMed | Google Scholar

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by He, R. in: PubMed | Google Scholar

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by Xu, Y. in: PubMed | Google Scholar

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by Gu, W. in: PubMed | Google Scholar

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by Pan, C. in: PubMed | Google Scholar

1Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China

2Department of Geriatric Medicine, Qilu Hospital of Shandong University, Jinan, China

3Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China

4Department of Neurology, Aerospace Center Hospital, School of Life, Beijing Institute of Technology, Beijing, China

5State Key Laboratory of Bioactive Molecules and Druggability Assessment/Gua, College of Pharmacy, Jinan University, Guangzhou, China

6Department of Orthopaedics, Qilu Hospital of Shandong University, Shandong University Centre for Orthopaedics, Cheeloo College of Medicine, Shandong University, Jinan, China

7Institute for Cancer Genetics, and Department of Pathology and Cell Biology, College of Physicians & Surgeons, Columbia University, New York, United States of America

8Department of Emergency and Chest Pain Center, Shandong Provincial Clinical, Qilu Hospital of Shandong University, Jinan, China

Find articles by Chu, B. in: PubMed | Google Scholar

Published November 12, 2026 - More info

J Clin Invest. https://doi.org/10.1172/JCI205758.
Copyright © 2026, Hu et al. This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Published November 12, 2026 - Version history
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Abstract

Epigenetic modifications contribute to lipid-related disorders by modulating the expression of key genes involved in lipid metabolism. Accumulating evidence suggests that lipid metabolism-mediated ferroptosis drives the progression of metabolic associated steatohepatitis (MASH) and liver injury. However, whether epigenetic mechanisms remodel lipid metabolism to regulate ferroptosis-induced liver damage remains unclear. Here, through pharmacological screening of epigenetics-related compounds and CRISPR-Cas9-based screening targeting epigenetic factors, we identified DOT1 Like Histone Lysine Methyltransferase (DOT1L) as a key sensitizer of hepatocytes to ferroptosis and subsequent liver injury, whereas inhibition of DOT1L reverses the phenomenon. DOT1L loss remodeled the phospholipid landscape by decreasing PUFA-containing phospholipids while increasing monounsaturated and lysophospholipid species. Mechanistically, DOT1L depletion reduced H3K79me1 and H3K79me2 occupancy at the PLA2G7, ALDH3B1, and PLCXD3 loci, particularly across gene-body regions, while increasing promoter-proximal accessibility and expression of these phospholipid-remodeling genes. These genes suppress ferroptosis by reducing the levels of phospholipids containing polyunsaturated fatty acids (PL-PUFAs). Furthermore, we demonstrated that AMPK phosphorylates DOT1L at Ser786, weakens its association with AF9, and suppresses H3K79 methyltransferase activity and ferroptosis sensitivity. Collectively, our findings reveal the AMPK–DOT1L–H3K79 methylation axis as a novel lipid metabolic pathway that regulates ferroptosis and maintains hepatic homeostasis, offering new therapeutic insights for ferroptosis-related liver injury.

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