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Wang J, He M, Yang M, Ai X. Gut microbiota as a key regulator of intestinal mucosal immunity. Life Sci 2024; 345:122612. [PMID: 38588949 DOI: 10.1016/j.lfs.2024.122612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/14/2024] [Accepted: 04/02/2024] [Indexed: 04/10/2024]
Abstract
Gut microbiota is a complex microbial community with the ability of maintaining intestinal health. Intestinal homeostasis largely depends on the mucosal immune system to defense external pathogens and promote tissue repair. In recent years, growing evidence revealed the importance of gut microbiota in shaping intestinal mucosal immunity. Therefore, according to the existing findings, this review first provided an overview of intestinal mucosal immune system before summarizing the regulatory roles of gut microbiota in intestinal innate and adaptive immunity. Specifically, this review delved into the gut microbial interactions with the cells such as intestinal epithelial cells (IECs), macrophages, dendritic cells (DCs), neutrophils, and innate lymphoid cells (ILCs) in innate immunity, and T and B lymphocytes in adaptive immunity. Furthermore, this review discussed the main effects of gut microbiota dysbiosis in intestinal diseases and offered future research prospects. The review highlighted the key regulatory roles of gut microbiota in intestinal mucosal immunity via various host-microbe interactions, providing valuable references for the development of microbial therapy in intestinal diseases.
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Affiliation(s)
- Jing Wang
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China; Department of Pharmacy, North Sichuan Medical College, Nanchong 637000, China
| | - Mei He
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China; Department of Pharmacy, North Sichuan Medical College, Nanchong 637000, China
| | - Ming Yang
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China; Department of Pharmacy, North Sichuan Medical College, Nanchong 637000, China.
| | - Xiaopeng Ai
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China; Department of Pharmacy, North Sichuan Medical College, Nanchong 637000, China.
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Zhang Y, Tu S, Ji X, Wu J, Meng J, Gao J, Shao X, Shi S, Wang G, Qiu J, Zhang Z, Hua C, Zhang Z, Chen S, Zhang L, Zhu SJ. Dubosiella newyorkensis modulates immune tolerance in colitis via the L-lysine-activated AhR-IDO1-Kyn pathway. Nat Commun 2024; 15:1333. [PMID: 38351003 PMCID: PMC10864277 DOI: 10.1038/s41467-024-45636-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 01/29/2024] [Indexed: 02/16/2024] Open
Abstract
Commensal bacteria generate immensely diverse active metabolites to maintain gut homeostasis, however their fundamental role in establishing an immunotolerogenic microenvironment in the intestinal tract remains obscure. Here, we demonstrate that an understudied murine commensal bacterium, Dubosiella newyorkensis, and its human homologue Clostridium innocuum, have a probiotic immunomodulatory effect on dextran sulfate sodium-induced colitis using conventional, antibiotic-treated and germ-free mouse models. We identify an important role for the D. newyorkensis in rebalancing Treg/Th17 responses and ameliorating mucosal barrier injury by producing short-chain fatty acids, especially propionate and L-Lysine (Lys). We further show that Lys induces the immune tolerance ability of dendritic cells (DCs) by enhancing Trp catabolism towards the kynurenine (Kyn) pathway through activation of the metabolic enzyme indoleamine-2,3-dioxygenase 1 (IDO1) in an aryl hydrocarbon receptor (AhR)-dependent manner. This study identifies a previously unrecognized metabolic communication by which Lys-producing commensal bacteria exert their immunoregulatory capacity to establish a Treg-mediated immunosuppressive microenvironment by activating AhR-IDO1-Kyn metabolic circuitry in DCs. This metabolic circuit represents a potential therapeutic target for the treatment of inflammatory bowel diseases.
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Affiliation(s)
- Yanan Zhang
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China
| | - Shuyu Tu
- Department of Cardiology, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, Guangdong, 510080, PR China
| | - Xingwei Ji
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China
| | - Jianan Wu
- Department of Critical Care Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310016, PR China
| | - Jinxin Meng
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong, 266109, PR China
| | - Jinsong Gao
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China
| | - Xian Shao
- Shaoxing People's Hospital, Zhejiang University Shaoxing Hospital, Shaoxing, Zhejiang, 312000, PR China
| | - Shuai Shi
- Shaoxing People's Hospital, Zhejiang University Shaoxing Hospital, Shaoxing, Zhejiang, 312000, PR China
| | - Gan Wang
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China
| | - Jingjing Qiu
- College of Veterinary Medicine, Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, 130118, PR China
| | - Zhuobiao Zhang
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China
| | - Chengang Hua
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China
| | - Ziyi Zhang
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China
| | - Shuxian Chen
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China
| | - Li Zhang
- Department of Cardiology, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, Guangdong, 510080, PR China
| | - Shu Jeffrey Zhu
- Department of Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China.
- Department of Critical Care Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310016, PR China.
- Shaoxing People's Hospital, Zhejiang University Shaoxing Hospital, Shaoxing, Zhejiang, 312000, PR China.
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Zhou M, Li J, Xu J, Zheng L, Xu S. Exploring human CYP4 enzymes: physiological roles, function in diseases and focus on inhibitors. Drug Discov Today 2023; 28:103560. [PMID: 36958639 DOI: 10.1016/j.drudis.2023.103560] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 03/06/2023] [Accepted: 03/16/2023] [Indexed: 03/25/2023]
Abstract
The cytochrome P450 (CYP)4 family of enzymes are monooxygenases responsible for the ω-oxidation of endogenous fatty acids and eicosanoids and play a crucial part in regulating numerous eicosanoid signaling pathways. Recently, CYP4 gained attention as a potential therapeutic target for several human diseases, including cancer, cardiovascular diseases and inflammation. Small-molecule inhibitors of CYP4 could provide promising treatments for these diseases. The aim of the present review is to highlight the advances in the field of CYP4, discussing the physiology and pathology of the CYP4 family and compiling CYP4 inhibitors into groups based on their chemical classes to provide clues for the future discovery of drug candidates targeting CYP4. Teaser: This review provides an updated view of the physiology and pathology of CYP4 enzymes. CYP4 inhibitors are compiled based on their skeletons to provide clues for the future discovery of drug candidates targeting CYP4.
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Affiliation(s)
- Manzhen Zhou
- Department of Medicinal Chemistry, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Junda Li
- Department of Medicinal Chemistry, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Jinyi Xu
- Department of Medicinal Chemistry, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Lufeng Zheng
- School of Life Science and Technology, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Shengtao Xu
- Department of Medicinal Chemistry, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China; Department of Hepatobiliary Surgery, The First People's Hospital of Kunshan, Suzhou, 215300, China.
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Li Q, Sun X, Yu K, Lv J, Miao C, Yang J, Wang S, Fu Z, Sun Y, Zhang H, Zhang ZS, Keller ET, Yao Z, Wang Q. Enterobacter ludwigii protects DSS-induced colitis through choline-mediated immune tolerance. Cell Rep 2022; 40:111308. [PMID: 36044853 DOI: 10.1016/j.celrep.2022.111308] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 06/29/2022] [Accepted: 08/11/2022] [Indexed: 11/03/2022] Open
Abstract
Commensal intestinal bacteria play key roles in regulating host immune tolerance; however, bacterial strains and related metabolites directly involved in this regulation are largely unknown. Here, using a mouse model of dextran sulfate sodium (DSS)-induced colitis combined with different antibiotic treatment, Enterobacter ludwigii, abundant in microbiota of mice treated with metronidazole, is screened out to have prophylactic and therapeutic effects on DSS-induced colitis with or without the presence of complex intestinal bacteria. E. ludwigii is found to induce CD103+DC and regulatory T (Treg)-mediated immune tolerance for colitis remission using in vitro and in vivo experiments. Moreover, choline, one metabolite of E. ludwigii, is identified to increase dendritic cells' (DCs) immune tolerance to promote Treg differentiation. E. ludwigii is found to induce DCs' immune tolerance ability for Treg differentiation through choline and α7nAChR-mediated retinoic acid (RA) and transforming growth factor beta (TGF-β) upregulation, resulting in protecting mice against DSS-induced colitis. This study suggests potential therapeutic approaches for inflammatory bowel diseases (IBDs).
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Affiliation(s)
- Qianqian Li
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Xuan Sun
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Kaiyuan Yu
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Junqiang Lv
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Chunhui Miao
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Jianming Yang
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Song Wang
- Tianjin Kangzhe Pharmaceutical Technology Development Company, Ltd., Tianjin 300042, China
| | - Zheng Fu
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China; Tianjin Kangzhe Pharmaceutical Technology Development Company, Ltd., Tianjin 300042, China
| | - Yamin Sun
- Tianjin Biochip Corporation, Tianjin, China
| | - Hong Zhang
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Zhi-Song Zhang
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Collaborative Innovation Center for Biotherapy, and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300350, China
| | - Evan T Keller
- Department of Urology, University of Michigan, Ann Arbor, MI, USA; Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA
| | - Zhi Yao
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China; The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Medical University, Tianjin 300070, China.
| | - Quan Wang
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), Tianjin Institute of Immunology, Tianjin Institute of Urology, Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China; The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Medical University, Tianjin 300070, China.
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Wang L, Liao Y, Yang R, Zhu Z, Zhang L, Wu Z, Sun X. An engineered probiotic secreting Sj16 ameliorates colitis via Ruminococcaceae/butyrate/retinoic acid axis. Bioeng Transl Med 2021; 6:e10219. [PMID: 34589596 PMCID: PMC8459592 DOI: 10.1002/btm2.10219] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/14/2021] [Accepted: 03/18/2021] [Indexed: 12/29/2022] Open
Abstract
Most inflammatory bowel disease (IBD) patients are unable to maintain a lifelong remission. Developing a novel therapeutic strategy is urgently needed. In this study, we adopt a new strategy to attenuate colitis using the Escherichia coli Nissle 1917 probiotic strain to express a schistosome immunoregulatory protein (Sj16) in the gastrointestinal tract. The genetically engineered Nissle 1917 (EcN-Sj16) highly expressed Sj16 in the gastrointestinal tracts of dextran sulfate sodium-induced colitis mice and significantly attenuated the clinical activity of colitis mice. Mechanistically, EcN-Sj16 increased the intestinal microbiota diversity and selectively promoted the growth of Ruminococcaceae and therefore enhanced the butyrate production. Butyrate induced the expression of retinoic acid, which further attenuated the clinical activity of colitis mice by increasing Treg cells and decreasing Th17. Strikingly, retinoic acid inhibitor inhibited the therapeutic effects of EcN-Sj16 in colitis mice. These findings suggest that EcN-Sj16 represents a novel engineered probiotic that may be used to treat IBD.
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Affiliation(s)
- Lifu Wang
- Department of Parasitology, Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Tropical Disease ControlMinistry of Education, Sun Yat‐sen UniversityGuangzhouChina
- Provincial Engineering Technology Research Center for Biological Vector ControlGuangzhouChina
| | - Yao Liao
- Department of Parasitology, Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Tropical Disease ControlMinistry of Education, Sun Yat‐sen UniversityGuangzhouChina
- Provincial Engineering Technology Research Center for Biological Vector ControlGuangzhouChina
| | - Ruibing Yang
- Department of Parasitology, Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Tropical Disease ControlMinistry of Education, Sun Yat‐sen UniversityGuangzhouChina
- Provincial Engineering Technology Research Center for Biological Vector ControlGuangzhouChina
| | - Zifeng Zhu
- Department of Parasitology, Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Tropical Disease ControlMinistry of Education, Sun Yat‐sen UniversityGuangzhouChina
- Provincial Engineering Technology Research Center for Biological Vector ControlGuangzhouChina
| | - Lichao Zhang
- Department of Parasitology, Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Tropical Disease ControlMinistry of Education, Sun Yat‐sen UniversityGuangzhouChina
- Provincial Engineering Technology Research Center for Biological Vector ControlGuangzhouChina
| | - Zhongdao Wu
- Department of Parasitology, Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Tropical Disease ControlMinistry of Education, Sun Yat‐sen UniversityGuangzhouChina
- Provincial Engineering Technology Research Center for Biological Vector ControlGuangzhouChina
| | - Xi Sun
- Department of Parasitology, Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouChina
- Key Laboratory of Tropical Disease ControlMinistry of Education, Sun Yat‐sen UniversityGuangzhouChina
- Provincial Engineering Technology Research Center for Biological Vector ControlGuangzhouChina
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