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Wang S, Wang X, Shan Y, Tan Z, Su Y, Cao Y, Wang S, Dong J, Gu J, Wang Y. Region-specific cellular and molecular basis of liver regeneration after acute pericentral injury. Cell Stem Cell 2024; 31:341-358.e7. [PMID: 38402618 DOI: 10.1016/j.stem.2024.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 12/08/2023] [Accepted: 01/30/2024] [Indexed: 02/27/2024]
Abstract
Liver injuries often occur in a zonated manner. However, detailed regenerative responses to such zonal injuries at cellular and molecular levels remain largely elusive. By using a fate-mapping strain, Cyp2e1-DreER, to elucidate liver regeneration after acute pericentral injury, we found that pericentral regeneration is primarily compensated by the expansion of remaining pericentral hepatocytes, and secondarily by expansion of periportal hepatocytes. Employing single-cell RNA sequencing, spatial transcriptomics, immunostaining, and in vivo functional assays, we demonstrated that the upregulated expression of the mTOR/4E-BP1 axis and lactate dehydrogenase A in hepatocytes contributes to pericentral regeneration, while activation of transforming growth factor β (TGF-β1) signaling in the damaged area mediates fibrotic responses and inhibits hepatocyte proliferation. Inhibiting the pericentral accumulation of monocytes and monocyte-derived macrophages through an Arg-Gly-Asp (RGD) peptide-based strategy attenuates these cell-derived TGF-β1 signalings, thus improving pericentral regeneration. Our study provides integrated and high-resolution spatiotemporal insights into the cellular and molecular basis of pericentral regeneration.
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Affiliation(s)
- Shuyong Wang
- Hepatopancreatobiliary Center, Clinical Translational Science Center, Beijing Tsinghua Changgung Hospital, Beijing 102218, China; Beijing Key Laboratory of New Techniques of Tuberculosis Diagnosis and Treatment, Senior Department of Tuberculosis, the Eighth Medical Center of PLA General Hospital, Beijing 100091, China
| | - Xuan Wang
- Hepatopancreatobiliary Center, Clinical Translational Science Center, Beijing Tsinghua Changgung Hospital, Beijing 102218, China
| | - Yiran Shan
- MOE Key Laboratory of Bioinformatics, BNRIST Bioinformatics Division, Department of Automation, Tsinghua University, Beijing 100084, China
| | - Zuolong Tan
- Department of Stem Cell and Regenerative Medicine, Beijing Institute of Health Service and Transfusion Medicine, Beijing 100850, China
| | - Yuxin Su
- Hepatopancreatobiliary Center, Clinical Translational Science Center, Beijing Tsinghua Changgung Hospital, Beijing 102218, China
| | - Yannan Cao
- Hepatopancreatobiliary Center, Clinical Translational Science Center, Beijing Tsinghua Changgung Hospital, Beijing 102218, China
| | - Shuang Wang
- Hepatopancreatobiliary Center, Clinical Translational Science Center, Beijing Tsinghua Changgung Hospital, Beijing 102218, China
| | - Jiahong Dong
- Hepatopancreatobiliary Center, Clinical Translational Science Center, Beijing Tsinghua Changgung Hospital, Beijing 102218, China; School of Clinical Medicine, Tsinghua University, Beijing 100084, China
| | - Jin Gu
- MOE Key Laboratory of Bioinformatics, BNRIST Bioinformatics Division, Department of Automation, Tsinghua University, Beijing 100084, China.
| | - Yunfang Wang
- Hepatopancreatobiliary Center, Clinical Translational Science Center, Beijing Tsinghua Changgung Hospital, Beijing 102218, China; School of Clinical Medicine, Tsinghua University, Beijing 100084, China.
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