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Hao J, Liu C, Gu Z, Yang X, Lan X, Guo X. Dysregulation of Wnt/β-catenin signaling contributes to intestinal inflammation through regulation of group 3 innate lymphoid cells. Nat Commun 2024; 15:2820. [PMID: 38561332 PMCID: PMC10985070 DOI: 10.1038/s41467-024-45616-1] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 01/30/2024] [Indexed: 04/04/2024] Open
Abstract
RORγt+ group 3 innate lymphoid cells (ILC3s) are essential for intestinal homeostasis. Dysregulation of ILC3s has been found in the gut of patients with inflammatory bowel disease and colorectal cancer, yet the specific mechanisms still require more investigation. Here we observe increased β-catenin in intestinal ILC3s from inflammatory bowel disease and colon cancer patients compared with healthy donors. In contrast to promoting RORγt expression in T cells, activation of Wnt/β-catenin signaling in ILC3s suppresses RORγt expression, inhibits its proliferation and function, and leads to a deficiency of ILC3s and subsequent intestinal inflammation in mice. Activated β-catenin and its interacting transcription factor, TCF-1, cannot directly suppress RORγt expression, but rather alters global chromatin accessibility and inhibits JunB expression, which is essential for RORγt expression in ILC3s. Together, our findings suggest that dysregulated Wnt/β-catenin signaling impairs intestinal ILC3s through TCF-1/JunB/RORγt regulation, further disrupting intestinal homeostasis, and promoting inflammation and cancer.
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Affiliation(s)
- Jiacheng Hao
- Institute for Immunology, Tsinghua University, 100084, Beijing, China
- Department of Basic Medical Sciences, School of Medicine, Tsinghua University, 100084, Beijing, China
- School of Life Sciences, Tsinghua University, 100084, Beijing, China
- Beijing Key Lab for Immunological Research on Chronic Diseases, Tsinghua University, 100084, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
| | - Chang Liu
- Department of Basic Medical Sciences, School of Medicine, Tsinghua University, 100084, Beijing, China
| | - Zhijie Gu
- Institute for Immunology, Tsinghua University, 100084, Beijing, China
- Department of Basic Medical Sciences, School of Medicine, Tsinghua University, 100084, Beijing, China
- School of Life Sciences, Tsinghua University, 100084, Beijing, China
- Beijing Key Lab for Immunological Research on Chronic Diseases, Tsinghua University, 100084, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
| | - Xuanming Yang
- Sheng Yushou Center of Cell Biology and Immunology, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 200240, Shanghai, China
- Joint International Research Laboratory of Metabolic and Developmental Sciences, Shanghai Jiao Tong University, 200240, Shanghai, China
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, 200240, Shanghai, China
| | - Xun Lan
- Department of Basic Medical Sciences, School of Medicine, Tsinghua University, 100084, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
| | - Xiaohuan Guo
- Institute for Immunology, Tsinghua University, 100084, Beijing, China.
- Department of Basic Medical Sciences, School of Medicine, Tsinghua University, 100084, Beijing, China.
- Beijing Key Lab for Immunological Research on Chronic Diseases, Tsinghua University, 100084, Beijing, China.
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