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Deng X, Ge T, Shen K, Wang J, Mu W, Luo H, Gu J, Zhang M, Xiao M. Novel heterozygous mutations of TNFRSF13B in EBV-associated T/NK lymphoproliferative diseases (EBV-T/NK-LPDs). BLOOD SCIENCE 2024; 6:e00180. [PMID: 38226020 PMCID: PMC10789450 DOI: 10.1097/bs9.0000000000000180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 12/10/2023] [Indexed: 01/17/2024] Open
Affiliation(s)
- Xinyue Deng
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
- Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei 430030, China
| | - Tong Ge
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
- Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei 430030, China
| | - Kefeng Shen
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
- Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei 430030, China
| | - Jiachen Wang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
- Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei 430030, China
| | - Wei Mu
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
- Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei 430030, China
| | - Hui Luo
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
- Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei 430030, China
| | - Jia Gu
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
- Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei 430030, China
| | - Meilan Zhang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
- Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei 430030, China
| | - Min Xiao
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
- Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei 430030, China
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Li D, Zhou J, Wang L, Gong Z, Le H, Huang Y, Xu C, Tian C, Cai W, Wu J. Gut microbial metabolite deoxycholic acid facilitates Th17 differentiation through modulating cholesterol biosynthesis and participates in high-fat diet-associated colonic inflammation. Cell Biosci 2023; 13:186. [PMID: 37789469 PMCID: PMC10548658 DOI: 10.1186/s13578-023-01109-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 08/18/2023] [Indexed: 10/05/2023] Open
Abstract
BACKGROUND High-fat diet (HFD) is closely associated with the increased prevalence of inflammatory bowel disease (IBD). Excessive gut microbial metabolite deoxycholic acid (DCA) caused by HFD plays significant roles in eliciting intestinal inflammation, however, the mechanism underlining the induction of inflammatory response by DCA has not been fully elucidated. The purpose of this study was to investigate the role of DCA in the triggering of inflammation via affecting CD4+ T cell differentiation. RESULTS Murine CD4+T cells were cultured under Th1, Th2 or Th17-polarizing conditions treated with or without different dosage of DCA, and flowcytometry was conducted to detect the effect of DCA on CD4+ T cell differentiation. Alteration of gene expression in CD4+ T cells upon DCA treatment was determined by RNA-sequencing and qRT-PCR. Bioinformatic analysis, cholesterol metabolic profiling, ChIP assay and immuno-fluorescent staining were further applied to explore the DCA-regulated pathway that involved in CD4+T cell differentiation. The results showed that DCA could dose-dependently promote the differentiation of CD4+ T cell into Th17 linage with pathogenic signature. Mechanistically, DCA stimulated the expression of cholesterol biosynthetic enzymes CYP51 and led to the increased generation of endogenous RORγt agonists, including zymosterol and desmosterol, therefore facilitating Th17 differentiation. Up-regulation of CYP51 by DCA was largely mediated via targeting transcription factor SREBP2 and at least partially through bile acid receptor TGR5. In addition, DCA-supplemented diet significantly increased intestinal Th17 cell infiltration and exacerbated TNBS-induced colitis. Administration of cholestyramine to eliminate fecal bile acid obviously alleviated colonic inflammation accompanied by decreased Th17 cells in HFD-fed mice. CONCLUSIONS Our data establish a link between DCA-induced cholesterol biosynthesis in immune cells and gut inflammation. Modulation of bile acid level or targeting cholesterol metabolic pathway may be potential therapeutic measurements for HFD-related colitis.
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Affiliation(s)
- Dan Li
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
- Shanghai Institute for Pediatric Research, School of Medicine, Shanghai Jiaotong University, Shanghai, China
- Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China
| | - Jiefei Zhou
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
- Shanghai Institute for Pediatric Research, School of Medicine, Shanghai Jiaotong University, Shanghai, China
- Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China
| | - Lingyu Wang
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
- Shanghai Institute for Pediatric Research, School of Medicine, Shanghai Jiaotong University, Shanghai, China
- Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China
| | - Zizhen Gong
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
- Shanghai Institute for Pediatric Research, School of Medicine, Shanghai Jiaotong University, Shanghai, China
- Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China
| | - Huijuan Le
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
- Shanghai Institute for Pediatric Research, School of Medicine, Shanghai Jiaotong University, Shanghai, China
- Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China
| | - Ye Huang
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
- Shanghai Institute for Pediatric Research, School of Medicine, Shanghai Jiaotong University, Shanghai, China
- Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China
| | - Congfeng Xu
- Department of Cardiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Chunyan Tian
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China.
- Research Unit of Proteomics-Driven Cancer Precision Medicine, Chinese Academy of Medical Sciences, Beijing, China.
| | - Wei Cai
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.
- Shanghai Institute for Pediatric Research, School of Medicine, Shanghai Jiaotong University, Shanghai, China.
- Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China.
| | - Jin Wu
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.
- Shanghai Institute for Pediatric Research, School of Medicine, Shanghai Jiaotong University, Shanghai, China.
- Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China.
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