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Open Access | 10.1172/JCI184653
1Department of Pathophysiology, Southern Medical University, Guangzhou, China
2Department of Infectious Diseases, Southern Medical University, Guangzhou, China
3Department of Pathogen Biology, Southern Medical University, Guangzhou, China
4Department of Critical Care Medicine, Southern Medical University, Guangzhou, China
5Department of Medicine, University of California San Diego, La Jolla, United States of America
Find articles by Li, J. in: PubMed | Google Scholar
1Department of Pathophysiology, Southern Medical University, Guangzhou, China
2Department of Infectious Diseases, Southern Medical University, Guangzhou, China
3Department of Pathogen Biology, Southern Medical University, Guangzhou, China
4Department of Critical Care Medicine, Southern Medical University, Guangzhou, China
5Department of Medicine, University of California San Diego, La Jolla, United States of America
Find articles by Xie, S. in: PubMed | Google Scholar
1Department of Pathophysiology, Southern Medical University, Guangzhou, China
2Department of Infectious Diseases, Southern Medical University, Guangzhou, China
3Department of Pathogen Biology, Southern Medical University, Guangzhou, China
4Department of Critical Care Medicine, Southern Medical University, Guangzhou, China
5Department of Medicine, University of California San Diego, La Jolla, United States of America
Find articles by Chen, M. in: PubMed | Google Scholar
1Department of Pathophysiology, Southern Medical University, Guangzhou, China
2Department of Infectious Diseases, Southern Medical University, Guangzhou, China
3Department of Pathogen Biology, Southern Medical University, Guangzhou, China
4Department of Critical Care Medicine, Southern Medical University, Guangzhou, China
5Department of Medicine, University of California San Diego, La Jolla, United States of America
Find articles by Hong, C. in: PubMed | Google Scholar
1Department of Pathophysiology, Southern Medical University, Guangzhou, China
2Department of Infectious Diseases, Southern Medical University, Guangzhou, China
3Department of Pathogen Biology, Southern Medical University, Guangzhou, China
4Department of Critical Care Medicine, Southern Medical University, Guangzhou, China
5Department of Medicine, University of California San Diego, La Jolla, United States of America
Find articles by Chen, Y. in: PubMed | Google Scholar
1Department of Pathophysiology, Southern Medical University, Guangzhou, China
2Department of Infectious Diseases, Southern Medical University, Guangzhou, China
3Department of Pathogen Biology, Southern Medical University, Guangzhou, China
4Department of Critical Care Medicine, Southern Medical University, Guangzhou, China
5Department of Medicine, University of California San Diego, La Jolla, United States of America
Find articles by Lyu, F. in: PubMed | Google Scholar
1Department of Pathophysiology, Southern Medical University, Guangzhou, China
2Department of Infectious Diseases, Southern Medical University, Guangzhou, China
3Department of Pathogen Biology, Southern Medical University, Guangzhou, China
4Department of Critical Care Medicine, Southern Medical University, Guangzhou, China
5Department of Medicine, University of California San Diego, La Jolla, United States of America
Find articles by Tang, N. in: PubMed | Google Scholar
1Department of Pathophysiology, Southern Medical University, Guangzhou, China
2Department of Infectious Diseases, Southern Medical University, Guangzhou, China
3Department of Pathogen Biology, Southern Medical University, Guangzhou, China
4Department of Critical Care Medicine, Southern Medical University, Guangzhou, China
5Department of Medicine, University of California San Diego, La Jolla, United States of America
Find articles by Chen, T. in: PubMed | Google Scholar
1Department of Pathophysiology, Southern Medical University, Guangzhou, China
2Department of Infectious Diseases, Southern Medical University, Guangzhou, China
3Department of Pathogen Biology, Southern Medical University, Guangzhou, China
4Department of Critical Care Medicine, Southern Medical University, Guangzhou, China
5Department of Medicine, University of California San Diego, La Jolla, United States of America
Find articles by Zhao, L. in: PubMed | Google Scholar
1Department of Pathophysiology, Southern Medical University, Guangzhou, China
2Department of Infectious Diseases, Southern Medical University, Guangzhou, China
3Department of Pathogen Biology, Southern Medical University, Guangzhou, China
4Department of Critical Care Medicine, Southern Medical University, Guangzhou, China
5Department of Medicine, University of California San Diego, La Jolla, United States of America
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1Department of Pathophysiology, Southern Medical University, Guangzhou, China
2Department of Infectious Diseases, Southern Medical University, Guangzhou, China
3Department of Pathogen Biology, Southern Medical University, Guangzhou, China
4Department of Critical Care Medicine, Southern Medical University, Guangzhou, China
5Department of Medicine, University of California San Diego, La Jolla, United States of America
Find articles by Peng, H. in: PubMed | Google Scholar
1Department of Pathophysiology, Southern Medical University, Guangzhou, China
2Department of Infectious Diseases, Southern Medical University, Guangzhou, China
3Department of Pathogen Biology, Southern Medical University, Guangzhou, China
4Department of Critical Care Medicine, Southern Medical University, Guangzhou, China
5Department of Medicine, University of California San Diego, La Jolla, United States of America
Find articles by Bao, J. in: PubMed | Google Scholar
1Department of Pathophysiology, Southern Medical University, Guangzhou, China
2Department of Infectious Diseases, Southern Medical University, Guangzhou, China
3Department of Pathogen Biology, Southern Medical University, Guangzhou, China
4Department of Critical Care Medicine, Southern Medical University, Guangzhou, China
5Department of Medicine, University of California San Diego, La Jolla, United States of America
Find articles by Gu, P. in: PubMed | Google Scholar
1Department of Pathophysiology, Southern Medical University, Guangzhou, China
2Department of Infectious Diseases, Southern Medical University, Guangzhou, China
3Department of Pathogen Biology, Southern Medical University, Guangzhou, China
4Department of Critical Care Medicine, Southern Medical University, Guangzhou, China
5Department of Medicine, University of California San Diego, La Jolla, United States of America
Find articles by Schnabl, B. in: PubMed | Google Scholar
1Department of Pathophysiology, Southern Medical University, Guangzhou, China
2Department of Infectious Diseases, Southern Medical University, Guangzhou, China
3Department of Pathogen Biology, Southern Medical University, Guangzhou, China
4Department of Critical Care Medicine, Southern Medical University, Guangzhou, China
5Department of Medicine, University of California San Diego, La Jolla, United States of America
Find articles by Chen, J. in: PubMed | Google Scholar
1Department of Pathophysiology, Southern Medical University, Guangzhou, China
2Department of Infectious Diseases, Southern Medical University, Guangzhou, China
3Department of Pathogen Biology, Southern Medical University, Guangzhou, China
4Department of Critical Care Medicine, Southern Medical University, Guangzhou, China
5Department of Medicine, University of California San Diego, La Jolla, United States of America
Find articles by Chen, P. in: PubMed | Google Scholar
Published June 6, 2025 - More info
Acute-on-chronic liver failure (ACLF) is a leading cause of global liver-related mortality. Bacterial infection, especially in patients with decompensated cirrhosis (DC), commonly triggers ACLF and is difficult to treat with antibiotics. Therefore, finding alternative strategies for preventing and managing bacterial infection is an urgent priority. Here, we observed that infected DC patients and ACLF mice exhibited lower fecal panose levels than uninfected controls. Megamonas funiformis (M. funiformis), with 4α-glucanosyltransferase (4αGT) as a key enzyme for panose production, was identified as a potential panose producer. Animal experiments demonstrated that panose efficiently reduced liver injury and extended survival in ACLF mice by mitigating bacterial infection. Further results revealed that panose enhanced resistance to bacterial infection by inhibiting oxidative stress-induced gut barrier disruption, thereby limiting bacterial dissemination. Mechanistically, panose interacted with the solute carrier family 7 member 11 (SLC7A11, also known as xCT) protein to boost antioxidant glutathione (GSH) levels in intestinal epithelial cells. These findings highlight panose's potential in preventing bacterial infection, offering a valuable insight into mitigating ACLF progression.