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Ren P, Lei W, Zhao C, Duan Z. HO-1-induced autophagy establishes a HO-1-p62-Nrf2 positive feedback loop to reduce gut permeability in cholestatic liver disease. Scand J Gastroenterol 2024; 59:906-917. [PMID: 38745449 DOI: 10.1080/00365521.2024.2353108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/22/2024] [Accepted: 05/05/2024] [Indexed: 05/16/2024]
Abstract
OBJECTIVES The gut-liver axis disruption is a unified pathogenetic principle of cholestatic liver disease (CSLD). Increased gut permeability is the leading cause of gut-liver axis disruption. HO-1 is capable of protecting against gut-liver axis injury. However, it has rarely been reported whether autophagy is involved in HO-1 protecting gut-liver barrier integrity and the underlying mechanism. MATERIALS AND METHODS Mice underwent bile duct ligation (BDL) was established as CSLD model in vivo. Caco-2 cells with LPS treatment was established as in vitro cell model. Immunofluorescence, western blot and transepithelial electrical resistance (TER) assay were used to observe epithelial tight junction (TJ) and autophagy. Liver injury and fibrosis were evaluated as well through H&E staining, masson staining, sirius red staining and ELISA. RESULTS AND CONCLUSIONS Our study demonstrated that the epithelial TJ and TER were notably reduced both in BDL mice and in LPS treated intestinal epithelial cells. Increased HO-1 expression could significantly induce intestinal epithelial cell autophagy. Additionally, this increased autophagy level reversed the reduction effects of BDL or LPS on epithelial TJ and TER in vivo and in vitro, therefore decreased transaminase level in serum and relieved liver fibrosis in BDL mice. Besides, increased autophagy level in turn upregulated the expression of HO-1 by p62 degradation of Keap1 and subsequent activation of Nrf2 pathway. Collectively, these results indicate that HO-1 reduces gut permeability by enhancing autophagy level in CSLD, the increased autophagy establishes a HO-1-p62-Nrf2 positive feedback loop to further improve gut-liver axis disruption. Therefore, our study confirms the critical role of autophagy in HO-1 ameliorating gut-liver axis injury during CSLD, highlighting HO-1 as a promising therapeutic target.
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Affiliation(s)
- Pingping Ren
- Second Department of Gastroenterology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
- Second Department of Gastroenterology, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Wei Lei
- Second Department of Gastroenterology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Changcheng Zhao
- Second Department of Gastroenterology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Zhijun Duan
- Second Department of Gastroenterology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
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2
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Zhang W, Wu H, Luo S, Lu X, Tan X, Wen L, Ma X, Efferth T. Molecular insights into experimental models and therapeutics for cholestasis. Biomed Pharmacother 2024; 174:116594. [PMID: 38615607 DOI: 10.1016/j.biopha.2024.116594] [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: 02/02/2024] [Revised: 04/02/2024] [Accepted: 04/10/2024] [Indexed: 04/16/2024] Open
Abstract
Cholestatic liver disease (CLD) is a range of conditions caused by the accumulation of bile acids (BAs) or disruptions in bile flow, which can harm the liver and bile ducts. To investigate its pathogenesis and treatment, it is essential to establish and assess experimental models of cholestasis, which have significant clinical value. However, owing to the complex pathogenesis of cholestasis, a single modelling method can merely reflect one or a few pathological mechanisms, and each method has its adaptability and limitations. We summarize the existing experimental models of cholestasis, including animal models, gene-knockout models, cell models, and organoid models. We also describe the main types of cholestatic disease simulated clinically. This review provides an overview of targeted therapy used for treating cholestasis based on the current research status of cholestasis models. In addition, we discuss the respective advantages and disadvantages of different models of cholestasis to help establish experimental models that resemble clinical disease conditions. In sum, this review not only outlines the current research with cholestasis models but also projects prospects for clinical treatment, thereby bridging basic research and practical therapeutic applications.
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Affiliation(s)
- Wenwen Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hefei Wu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shiman Luo
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaohua Lu
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, Mainz, Germany
| | - Xiyue Tan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Li Wen
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
| | - Xiao Ma
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
| | - Thomas Efferth
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, Mainz, Germany.
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3
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Chen L, Wang F, Zhang H, Cao B. Exploring potential causal associations between autoimmune diseases and colorectal cancer using bidirectional Mendelian randomization. Sci Rep 2024; 14:1557. [PMID: 38238429 PMCID: PMC10796354 DOI: 10.1038/s41598-024-51903-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 01/11/2024] [Indexed: 01/22/2024] Open
Abstract
Several observational studies have revealed an association between autoimmune diseases (AIDs) and colorectal cancer (CRC), although their causal association remained controversial. Therefore, our study used a two-sample Mendelian randomization (MR) analysis to verify the causal association between AIDs and CRC. We employed three common MR approaches, including inverse variance weighted (IVW), weighted median, and MR-Egger methods, to assess the causal association between type 1 diabetes (T1D), systemic lupus erythematosus, rheumatoid arthritis, psoriasis, multiple sclerosis, juvenile idiopathic arthritis, celiac disease, and primary sclerosing cholangitis (PSC) and CRC. The reverse MR analysis was performed to assess the possibility of reverse causation. To evaluate the validity of the analysis, we also performed sensitivity analysis, such as the heterogeneity test, the horizontal pleiotropy test, and the leave-one-out sensitivity analysis, and validated the results in the validation cohort. Our results showed that genetically predicted T1D was nominally associated with a lower risk of CRC (IVW OR = 0.965, 95% CI = 0.939-0.992, P = 0.012). However, genetic susceptibility to psoriasis nominally increased the risk of CRC (IVW OR = 1.026, 95% CI = 1.002-1.050, P = 0.037). Genetically predicted PSC had a significant causal effect on the increasing risk of CRC (IVW OR = 1.038, 95% CI = 1.016-1.060, P = 5.85 × 10-4). Furthermore, the MR analysis between PSC and the CRC validation cohort indicated consistent results. We found no causal association between genetically predicted other five AIDs and CRC (P > 0.05). The results of reverse MR analysis showed that genetically predicted CRC had no causal effect on T1D, psoriasis, and PSC (P > 0.05). The sensitivity analysis demonstrated that the results of the MR analysis were reliable. Our findings help to understand the causal association between AIDs and CRC, which deserves further investigation.
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Affiliation(s)
- Lu Chen
- Department of Medical Oncology and Radiation Sickness, Peking University Third Hospital, Beijing, 100191, China
| | - Feifan Wang
- Gastrointestinal Disease Diagnosis and Treatment Center, The First Hospital of Hebei Medical University, Shijiazhuang, 050000, China
| | - Hua Zhang
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing, 100191, China
| | - Baoshan Cao
- Department of Medical Oncology and Radiation Sickness, Peking University Third Hospital, Beijing, 100191, China.
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4
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Qu R, Zhang Y, Ma Y, Zhou X, Sun L, Jiang C, Zhang Z, Fu W. Role of the Gut Microbiota and Its Metabolites in Tumorigenesis or Development of Colorectal Cancer. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2205563. [PMID: 37263983 PMCID: PMC10427379 DOI: 10.1002/advs.202205563] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 04/20/2023] [Indexed: 06/03/2023]
Abstract
Colorectal cancer (CRC) is the most common cancer of the digestive system with high mortality and morbidity rates. Gut microbiota is found in the intestines, especially the colorectum, and has structured crosstalk interactions with the host that affect several physiological processes. The gut microbiota include CRC-promoting bacterial species, such as Fusobacterium nucleatum, Escherichia coli, and Bacteroides fragilis, and CRC-protecting bacterial species, such as Clostridium butyricum, Streptococcus thermophilus, and Lacticaseibacillus paracasei, which along with other microorganisms, such as viruses and fungi, play critical roles in the development of CRC. Different bacterial features are identified in patients with early-onset CRC, combined with different patterns between fecal and intratumoral microbiota. The gut microbiota may be beneficial in the diagnosis and treatment of CRC; some bacteria may serve as biomarkers while others as regulators of chemotherapy and immunotherapy. Furthermore, metabolites produced by the gut microbiota play essential roles in the crosstalk with CRC cells. Harmful metabolites include some primary bile acids and short-chain fatty acids, whereas others, including ursodeoxycholic acid and butyrate, are beneficial and impede tumor development and progression. This review focuses on the gut microbiota and its metabolites, and their potential roles in the development, diagnosis, and treatment of CRC.
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Affiliation(s)
- Ruize Qu
- Department of General SurgeryPeking University Third HospitalBeijing100191P. R. China
- Cancer CenterPeking University Third HospitalBeijing100191P. R. China
| | - Yi Zhang
- Department of General SurgeryPeking University Third HospitalBeijing100191P. R. China
- Cancer CenterPeking University Third HospitalBeijing100191P. R. China
| | - Yanpeng Ma
- Department of General SurgeryPeking University Third HospitalBeijing100191P. R. China
- Cancer CenterPeking University Third HospitalBeijing100191P. R. China
| | - Xin Zhou
- Department of General SurgeryPeking University Third HospitalBeijing100191P. R. China
- Cancer CenterPeking University Third HospitalBeijing100191P. R. China
| | - Lulu Sun
- State Key Laboratory of Women's Reproductive Health and Fertility PromotionPeking UniversityBeijing100191P. R. China
- Department of Endocrinology and MetabolismPeking University Third HospitalBeijing100191P. R. China
| | - Changtao Jiang
- Center of Basic Medical ResearchInstitute of Medical Innovation and ResearchThird HospitalPeking UniversityBeijing100191P. R. China
- Department of Physiology and PathophysiologySchool of Basic Medical SciencesPeking University and the Key Laboratory of Molecular Cardiovascular Science (Peking University)Ministry of EducationBeijing100191P. R. China
- Center for Obesity and Metabolic Disease ResearchSchool of Basic Medical SciencesPeking UniversityBeijing100191P. R. China
| | - Zhipeng Zhang
- Department of General SurgeryPeking University Third HospitalBeijing100191P. R. China
- Cancer CenterPeking University Third HospitalBeijing100191P. R. China
| | - Wei Fu
- Department of General SurgeryPeking University Third HospitalBeijing100191P. R. China
- Cancer CenterPeking University Third HospitalBeijing100191P. R. China
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5
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Long XQ, Liu MZ, Liu ZH, Xia LZ, Lu SP, Xu XP, Wu MH. Bile acids and their receptors: Potential therapeutic targets in inflammatory bowel disease. World J Gastroenterol 2023; 29:4252-4270. [PMID: 37545642 PMCID: PMC10401658 DOI: 10.3748/wjg.v29.i27.4252] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 05/19/2023] [Accepted: 06/21/2023] [Indexed: 07/13/2023] Open
Abstract
Chronic and recurrent inflammatory disorders of the gastrointestinal tract caused by a complex interplay between genetics and intestinal dysbiosis are called inflammatory bowel disease. As a result of the interaction between the liver and the gut microbiota, bile acids are an atypical class of steroids produced in mammals and traditionally known for their function in food absorption. With the development of genomics and metabolomics, more and more data suggest that the pathophysiological mechanisms of inflammatory bowel disease are regulated by bile acids and their receptors. Bile acids operate as signalling molecules by activating a variety of bile acid receptors that impact intestinal flora, epithelial barrier function, and intestinal immunology. Inflammatory bowel disease can be treated in new ways by using these potential molecules. This paper mainly discusses the increasing function of bile acids and their receptors in inflammatory bowel disease and their prospective therapeutic applications. In addition, we explore bile acid metabolism and the interaction of bile acids and the gut microbiota.
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Affiliation(s)
- Xiong-Quan Long
- Department of Gastroenterology, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha 410005, Hunan Province, China
| | - Ming-Zhu Liu
- Department of Gastroenterology, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha 410005, Hunan Province, China
| | - Zi-Hao Liu
- Department of Gastroenterology, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha 410005, Hunan Province, China
| | - Lv-Zhou Xia
- Department of Gastroenterology, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha 410005, Hunan Province, China
| | - Shi-Peng Lu
- Department of Gastroenterology, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha 410005, Hunan Province, China
| | - Xiao-Ping Xu
- Department of Gastroenterology, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha 410005, Hunan Province, China
| | - Ming-Hao Wu
- Department of Gastroenterology, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha 410005, Hunan Province, China
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6
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Shi L, Jin L, Huang W. Bile Acids, Intestinal Barrier Dysfunction, and Related Diseases. Cells 2023; 12:1888. [PMID: 37508557 PMCID: PMC10377837 DOI: 10.3390/cells12141888] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 07/11/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
The intestinal barrier is a precisely regulated semi-permeable physiological structure that absorbs nutrients and protects the internal environment from infiltration of pathological molecules and microorganisms. Bile acids are small molecules synthesized from cholesterol in the liver, secreted into the duodenum, and transformed to secondary or tertiary bile acids by the gut microbiota. Bile acids interact with bile acid receptors (BARs) or gut microbiota, which plays a key role in maintaining the homeostasis of the intestinal barrier. In this review, we summarize and discuss the recent studies on bile acid disorder associated with intestinal barrier dysfunction and related diseases. We focus on the roles of bile acids, BARs, and gut microbiota in triggering intestinal barrier dysfunction. Insights for the future prevention and treatment of intestinal barrier dysfunction and related diseases are provided.
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Affiliation(s)
- Linsen Shi
- Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes and Metabolism Research Institute, Beckman Research Institute, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Lihua Jin
- Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes and Metabolism Research Institute, Beckman Research Institute, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Wendong Huang
- Department of Diabetes Complications and Metabolism, Arthur Riggs Diabetes and Metabolism Research Institute, Beckman Research Institute, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA 91010, USA
- Irell & Manella Graduate School of Biomedical Science, City of Hope National Medical Center, 1500 E. Duarte Road, Duarte, CA 91010, USA
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7
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Fidelle M, Tian AL, Zitvogel L, Kroemer G. Bile acids regulate MAdCAM-1 expression to link the gut microbiota to cancer immunosurveillance. Oncoimmunology 2023; 12:2224672. [PMID: 37405191 PMCID: PMC10316723 DOI: 10.1080/2162402x.2023.2224672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/09/2023] [Accepted: 06/09/2023] [Indexed: 07/06/2023] Open
Abstract
In a recent paper in Science, Fidelle et al. unravel a gut immune checkpoint that is subverted by antibiotic treatment. Post-antibiotic dysbiosis of the ileum causes an increase in bile acids that downregulate MAdCAM-1, thereby triggering the exodus of immunosuppressive T cells from gut-associated lymphoid tissues toward tumors.
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Affiliation(s)
- Marine Fidelle
- Metabolomics and Cell Biology Platforms, Gustave Roussy, Villejuif, France
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Center, Université Paris Saclay, Villejuif, France
- Equipe Labellisée Par la Ligue Contre le Cancer, Inserm U1015, Villejuif, France
| | - Ai-Ling Tian
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Center, Université Paris Saclay, Villejuif, France
- Centre de Recherche des Cordeliers, Equipe Labellisée Par la Ligue Contre le Cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
| | - Laurence Zitvogel
- Metabolomics and Cell Biology Platforms, Gustave Roussy, Villejuif, France
- Equipe Labellisée Par la Ligue Contre le Cancer, Inserm U1015, Villejuif, France
- Faculty of Medicine, Université Paris Saclay, France
- Department of Biology, Center of Clinical Investigations in Biotherapies of Cancer (CICBT) BIOTHERIS, Villejuif, France
| | - Guido Kroemer
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Center, Université Paris Saclay, Villejuif, France
- Centre de Recherche des Cordeliers, Equipe Labellisée Par la Ligue Contre le Cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Department of Biology, Institut du Cancer Paris Carpem, Hôpital Européen Georges Pompidou, AP-HP, Paris, France
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8
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Fidelle M, Rauber C, Alves Costa Silva C, Tian AL, Lahmar I, de La Varende ALM, Zhao L, Thelemaque C, Lebhar I, Messaoudene M, Pizzato E, Birebent R, Mbogning Fonkou MD, Zoppi S, Reni A, Dalban C, Leduc M, Ferrere G, Durand S, Ly P, Silvin A, Mulder K, Dutertre CA, Ginhoux F, Yonekura S, Roberti MP, Tidjani-Alou M, Terrisse S, Chen J, Kepp O, Schippers A, Wagner N, Suárez-Gosálvez J, Kobold S, Fahrner JE, Richard C, Bosq J, Lordello L, Vitali G, Galleron N, Quinquis B, Le Chatelier E, Blanchard L, Girard JP, Jarry A, Gervois N, Godefroy E, Labarrière N, Koschny R, Daillère R, Besse B, Truntzer C, Ghiringhelli F, Coatnoan N, Mhanna V, Klatzmann D, Drubay D, Albiges L, Thomas AM, Segata N, Danlos FX, Marabelle A, Routy B, Derosa L, Kroemer G, Zitvogel L. A microbiota-modulated checkpoint directs immunosuppressive intestinal T cells into cancers. Science 2023; 380:eabo2296. [PMID: 37289890 DOI: 10.1126/science.abo2296] [Citation(s) in RCA: 49] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 04/14/2023] [Indexed: 06/10/2023]
Abstract
Antibiotics (ABX) compromise the efficacy of programmed cell death protein 1 (PD-1) blockade in cancer patients, but the mechanisms underlying their immunosuppressive effects remain unknown. By inducing the down-regulation of mucosal addressin cell adhesion molecule 1 (MAdCAM-1) in the ileum, post-ABX gut recolonization by Enterocloster species drove the emigration of enterotropic α4β7+CD4+ regulatory T 17 cells into the tumor. These deleterious ABX effects were mimicked by oral gavage of Enterocloster species, by genetic deficiency, or by antibody-mediated neutralization of MAdCAM-1 and its receptor, α4β7 integrin. By contrast, fecal microbiota transplantation or interleukin-17A neutralization prevented ABX-induced immunosuppression. In independent lung, kidney, and bladder cancer patient cohorts, low serum levels of soluble MAdCAM-1 had a negative prognostic impact. Thus, the MAdCAM-1-α4β7 axis constitutes an actionable gut immune checkpoint in cancer immunosurveillance.
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Affiliation(s)
- Marine Fidelle
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Conrad Rauber
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
- Department of Gastroenterology and Infectious Diseases, University Hospital Heidelberg, Heidelberg, Germany
| | - Carolina Alves Costa Silva
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Ai-Ling Tian
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
- Centre de Recherche des Cordeliers, INSERM U1138, Équipe Labellisée - Ligue Nationale contre le Cancer, Université Paris Cité, Sorbonne Université, Paris, France
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Imran Lahmar
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Anne-Laure Mallard de La Varende
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Liwei Zhao
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Centre de Recherche des Cordeliers, INSERM U1138, Équipe Labellisée - Ligue Nationale contre le Cancer, Université Paris Cité, Sorbonne Université, Paris, France
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Cassandra Thelemaque
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Isabelle Lebhar
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Meriem Messaoudene
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Quebec, Canada
| | - Eugenie Pizzato
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Roxanne Birebent
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Maxime Descartes Mbogning Fonkou
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Silvia Zoppi
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Anna Reni
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
- Section of Oncology, Department of Medicine, University of Verona School of Medicine and Verona University Hospital Trust, Verona, Italy
| | - Cécile Dalban
- Clinical Research Department, Centre Léon Bérard, Lyon, France
| | - Marion Leduc
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Centre de Recherche des Cordeliers, INSERM U1138, Équipe Labellisée - Ligue Nationale contre le Cancer, Université Paris Cité, Sorbonne Université, Paris, France
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Gladys Ferrere
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
- EverImmune, Gustave Roussy Cancer Campus, Villejuif Cedex, France
| | - Sylvère Durand
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Centre de Recherche des Cordeliers, INSERM U1138, Équipe Labellisée - Ligue Nationale contre le Cancer, Université Paris Cité, Sorbonne Université, Paris, France
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Pierre Ly
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
- Center of Clinical Investigations in Biotherapies of Cancer (BIOTHERIS), Villejuif, France
| | - Aymeric Silvin
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Kevin Mulder
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Charles-Antoine Dutertre
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Florent Ginhoux
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Satoru Yonekura
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Maria Paula Roberti
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
- Clinical Cooperation Unit Applied Tumor Immunity, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Medical Oncology, National Center for Tumor Diseases (NCT), Heidelberg University Hospital (UKHD), Heidelberg, Germany
| | - Maryam Tidjani-Alou
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Safae Terrisse
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Jianzhou Chen
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Oliver Kepp
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Centre de Recherche des Cordeliers, INSERM U1138, Équipe Labellisée - Ligue Nationale contre le Cancer, Université Paris Cité, Sorbonne Université, Paris, France
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
| | - Angela Schippers
- Department of Pediatrics, University Hospital RWTH Aachen, Aachen, Germany
| | - Norbert Wagner
- Department of Pediatrics, University Hospital RWTH Aachen, Aachen, Germany
| | - Javier Suárez-Gosálvez
- Center of Integrated Protein Science Munich (CIPS-M) and Division of Clinical Pharmacology, Department of Medicine IV, Klinikum der Universität München, LMU Munich, Germany
| | - Sebastian Kobold
- Center of Integrated Protein Science Munich (CIPS-M) and Division of Clinical Pharmacology, Department of Medicine IV, Klinikum der Universität München, LMU Munich, Germany
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
| | - Jean-Eudes Fahrner
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Corentin Richard
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Quebec, Canada
| | | | - Leonardo Lordello
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
| | - Giacomo Vitali
- MetaGenoPolis, INRAe, Université Paris-Saclay, Jouy en Josas, France
| | - Nathalie Galleron
- MetaGenoPolis, INRAe, Université Paris-Saclay, Jouy en Josas, France
| | - Benoît Quinquis
- MetaGenoPolis, INRAe, Université Paris-Saclay, Jouy en Josas, France
| | | | - Lucas Blanchard
- Institut de Pharmacologie et de Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Jean-Philippe Girard
- Institut de Pharmacologie et de Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Anne Jarry
- Nantes Université, Université d'Angers, INSERM, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1302/EMR6001, Nantes, France
| | - Nadine Gervois
- Nantes Université, Université d'Angers, INSERM, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1302/EMR6001, Nantes, France
| | - Emmanuelle Godefroy
- Nantes Université, Université d'Angers, INSERM, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1302/EMR6001, Nantes, France
| | - Nathalie Labarrière
- Nantes Université, Université d'Angers, INSERM, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1302/EMR6001, Nantes, France
- LabEx IGO, Université de Nantes, Nantes, France
| | - Ronald Koschny
- Department of Gastroenterology and Infectious Diseases, University Hospital Heidelberg, Heidelberg, Germany
| | - Romain Daillère
- EverImmune, Gustave Roussy Cancer Campus, Villejuif Cedex, France
| | - Benjamin Besse
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
| | - Caroline Truntzer
- Université de Bourgogne Franche-Comté, Plateforme de Transfert de Biologie du Cancer, Centre Georges-François Leclerc, Equipe Labellisée Ligue Nationale Contre le Cancer, Centre de Recherche INSERM LNC-UMR1231, Institut Médical de Génétique et d'Immunologie, Dijon, France
| | - François Ghiringhelli
- Université de Bourgogne Franche-Comté, Plateforme de Transfert de Biologie du Cancer, Centre Georges-François Leclerc, Equipe Labellisée Ligue Nationale Contre le Cancer, Centre de Recherche INSERM LNC-UMR1231, Institut Médical de Génétique et d'Immunologie, Dijon, France
| | - Nicolas Coatnoan
- AP-HP, Hôpital Pitié-Salpêtrière, Clinical Investigation Center for Biotherapies (CIC-BTi) and Immunology-Inflammation-Infectiology and Dermatology Department (3iD), Paris, France
- Sorbonne Université, INSERM, UMRS959 Immunology-Immunopathology-Immunotherapy Laboratory, Paris, France
| | - Vanessa Mhanna
- AP-HP, Hôpital Pitié-Salpêtrière, Clinical Investigation Center for Biotherapies (CIC-BTi) and Immunology-Inflammation-Infectiology and Dermatology Department (3iD), Paris, France
- Sorbonne Université, INSERM, UMRS959 Immunology-Immunopathology-Immunotherapy Laboratory, Paris, France
| | - David Klatzmann
- AP-HP, Hôpital Pitié-Salpêtrière, Clinical Investigation Center for Biotherapies (CIC-BTi) and Immunology-Inflammation-Infectiology and Dermatology Department (3iD), Paris, France
- Sorbonne Université, INSERM, UMRS959 Immunology-Immunopathology-Immunotherapy Laboratory, Paris, France
| | - Damien Drubay
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Office of Biostatistics and Epidemiology, Gustave Roussy Cancer Campus, Université Paris-Saclay, Villejuif, France
- Inserm, Université Paris-Saclay, CESP U1018, Oncostat, labeled Ligue Contre le Cancer, Villejuif, France
| | - Laurence Albiges
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
| | - Andrew Maltez Thomas
- Department of Computational, Cellular and Integrative Biology, University of Trento, Trento, Italy
| | - Nicola Segata
- Department of Computational, Cellular and Integrative Biology, University of Trento, Trento, Italy
- Istituto Europeo di Oncologia (IEO), National Cancer Institute (IRCCS), Milan, Italy
| | - François-Xavier Danlos
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
- Center of Clinical Investigations in Biotherapies of Cancer (BIOTHERIS), Villejuif, France
- Drug Development Department, Gustave Roussy Cancer Campus, Villejuif Cedex, France
| | - Aurélien Marabelle
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
- Center of Clinical Investigations in Biotherapies of Cancer (BIOTHERIS), Villejuif, France
- Drug Development Department, Gustave Roussy Cancer Campus, Villejuif Cedex, France
| | - Bertrand Routy
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Quebec, Canada
- Hematology-Oncology Division, Department of Medicine, Centre Hospitalier de l'Université de Montréal (CHUM), Montréal, Quebec, Canada
| | - Lisa Derosa
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
- Center of Clinical Investigations in Biotherapies of Cancer (BIOTHERIS), Villejuif, France
| | - Guido Kroemer
- Centre de Recherche des Cordeliers, INSERM U1138, Équipe Labellisée - Ligue Nationale contre le Cancer, Université Paris Cité, Sorbonne Université, Paris, France
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
- Institut du Cancer Paris CARPEM, Department of Biology, Hôpital Européen Georges Pompidou, Assistance Publique - Hôpitaux de Paris (AP-HP), Paris, France
| | - Laurence Zitvogel
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
- Institut National de la Santé Et de la Recherche Médicale (INSERM) U1015, Équipe Labellisée - Ligue Nationale contre le Cancer, Villejuif, France
- Center of Clinical Investigations in Biotherapies of Cancer (BIOTHERIS), Villejuif, France
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9
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Orozco-Aguilar J, Tacchi F, Aguirre F, Valero-Breton M, Castro-Sepulveda M, Simon F, Cabello-Verrugio C. Ursodeoxycholic acid induces sarcopenia associated with decreased protein synthesis and autophagic flux. Biol Res 2023; 56:28. [PMID: 37237400 DOI: 10.1186/s40659-023-00431-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 04/13/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Skeletal muscle generates force and movements and maintains posture. Under pathological conditions, muscle fibers suffer an imbalance in protein synthesis/degradation. This event causes muscle mass loss and decreased strength and muscle function, a syndrome known as sarcopenia. Recently, our laboratory described secondary sarcopenia in a chronic cholestatic liver disease (CCLD) mouse model. Interestingly, the administration of ursodeoxycholic acid (UDCA), a hydrophilic bile acid, is an effective therapy for cholestatic hepatic alterations. However, the effect of UDCA on skeletal muscle mass and functionality has never been evaluated, nor the possible involved mechanisms. METHODS We assessed the ability of UDCA to generate sarcopenia in C57BL6 mice and develop a sarcopenic-like phenotype in C2C12 myotubes and isolated muscle fibers. In mice, we measured muscle strength by a grip strength test, muscle mass by bioimpedance and mass for specific muscles, and physical function by a treadmill test. We also detected the fiber's diameter and content of sarcomeric proteins. In C2C12 myotubes and/or isolated muscle fibers, we determined the diameter and troponin I level to validate the cellular effect. Moreover, to evaluate possible mechanisms, we detected puromycin incorporation, p70S6K, and 4EBP1 to evaluate protein synthesis and ULK1, LC3 I, and II protein levels to determine autophagic flux. The mitophagosome-like structures were detected by transmission electron microscopy. RESULTS UDCA induced sarcopenia in healthy mice, evidenced by decreased strength, muscle mass, and physical function, with a decline in the fiber's diameter and the troponin I protein levels. In the C2C12 myotubes, we observed that UDCA caused a reduction in the diameter and content of MHC, troponin I, puromycin incorporation, and phosphorylated forms of p70S6K and 4EBP1. Further, we detected increased levels of phosphorylated ULK1, the LC3II/LC3I ratio, and the number of mitophagosome-like structures. These data suggest that UDCA induces a sarcopenic-like phenotype with decreased protein synthesis and autophagic flux. CONCLUSIONS Our results indicate that UDCA induces sarcopenia in mice and sarcopenic-like features in C2C12 myotubes and/or isolated muscle fibers concomitantly with decreased protein synthesis and alterations in autophagic flux.
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Affiliation(s)
- Josué Orozco-Aguilar
- Laboratory of Muscle Pathology, Fragility and Aging, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
- Millennium Institute On Immunology and Immunotherapy, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
- Facultad de Farmacia, Universidad de Costa Rica, San José, Costa Rica
| | - Franco Tacchi
- Laboratory of Muscle Pathology, Fragility and Aging, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
- Millennium Institute On Immunology and Immunotherapy, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
| | - Francisco Aguirre
- Laboratory of Muscle Pathology, Fragility and Aging, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
- Millennium Institute On Immunology and Immunotherapy, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
| | - Mayalen Valero-Breton
- Laboratory of Muscle Pathology, Fragility and Aging, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
- Millennium Institute On Immunology and Immunotherapy, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
| | - Mauricio Castro-Sepulveda
- Exercise Physiology and Metabolism Laboratory, School of Kinesiology, Faculty of Medicine, Finis Terrae University, Santiago, Chile
| | - Felipe Simon
- Millennium Institute On Immunology and Immunotherapy, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile.
- Laboratory of Integrative Physiopathology, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile.
- Millennium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Universidad de Chile, Santiago, Chile.
| | - Claudio Cabello-Verrugio
- Laboratory of Muscle Pathology, Fragility and Aging, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile.
- Millennium Institute On Immunology and Immunotherapy, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile.
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10
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He Q, Wu J, Ke J, Zhang Q, Zeng W, Luo Z, Gong J, Chen Y, He Z, Lan P. Therapeutic role of ursodeoxycholic acid in colitis-associated cancer via gut microbiota modulation. Mol Ther 2023; 31:585-598. [PMID: 38556635 PMCID: PMC9931610 DOI: 10.1016/j.ymthe.2022.10.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 09/21/2022] [Accepted: 10/25/2022] [Indexed: 11/09/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a predisposing factor for colitis-associated cancer (CAC). The association between bile acids and the gut microbiota has been demonstrated in colon neoplasia; however, the effect of ursodeoxycholic acid (UDCA) on gut microbiota alteration in development of colitis and CAC is unknown. Our analysis of publicly available datasets demonstrated the association of UDCA treatment and accumulation of Akkermansia. UDCA-mediated alleviation of DSS-induced colitis was microbially dependent. UDCA treatment significantly upregulated Akkermansia colonization in a mouse model. Colonization of Akkermansia was associated with enhancement of the mucus layer upon UDCA treatment as well as activation of bile acid receptors in macrophages. UDCA played a role in CAC prevention and treatment in the AOM-DSS and ApcMin/+-DSS models through downregulation of inflammation and accumulation of Akkermansia. This study suggests that UDCA intervention could reshape intestinal gut homeostasis, facilitating colonization of Akkermansia and preventing and treating colitis and CAC.
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Affiliation(s)
- Qilang He
- The Sixth Affiliated Hospital, School of Medicine, Sun Yat-sen University, Guangzhou, 510655 Guangdong, China; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, Guangzhou, 510655 Guangdong, China
| | - Jinjie Wu
- The Sixth Affiliated Hospital, School of Medicine, Sun Yat-sen University, Guangzhou, 510655 Guangdong, China; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, Guangzhou, 510655 Guangdong, China
| | - Jia Ke
- The Sixth Affiliated Hospital, School of Medicine, Sun Yat-sen University, Guangzhou, 510655 Guangdong, China; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, Guangzhou, 510655 Guangdong, China
| | - Qiang Zhang
- The Sixth Affiliated Hospital, School of Medicine, Sun Yat-sen University, Guangzhou, 510655 Guangdong, China; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, Guangzhou, 510655 Guangdong, China
| | - Wanyi Zeng
- The Sixth Affiliated Hospital, School of Medicine, Sun Yat-sen University, Guangzhou, 510655 Guangdong, China; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, Guangzhou, 510655 Guangdong, China
| | - Zhanhao Luo
- The Sixth Affiliated Hospital, School of Medicine, Sun Yat-sen University, Guangzhou, 510655 Guangdong, China; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, Guangzhou, 510655 Guangdong, China
| | - Junli Gong
- The Sixth Affiliated Hospital, School of Medicine, Sun Yat-sen University, Guangzhou, 510655 Guangdong, China; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, Guangzhou, 510655 Guangdong, China
| | - Yuan Chen
- The Sixth Affiliated Hospital, School of Medicine, Sun Yat-sen University, Guangzhou, 510655 Guangdong, China
| | - Zhen He
- The Sixth Affiliated Hospital, School of Medicine, Sun Yat-sen University, Guangzhou, 510655 Guangdong, China; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, Guangzhou, 510655 Guangdong, China.
| | - Ping Lan
- The Sixth Affiliated Hospital, School of Medicine, Sun Yat-sen University, Guangzhou, 510655 Guangdong, China; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangdong Institute of Gastroenterology, Guangzhou, 510655 Guangdong, China.
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11
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Calzadilla N, Comiskey SM, Dudeja PK, Saksena S, Gill RK, Alrefai WA. Bile acids as inflammatory mediators and modulators of intestinal permeability. Front Immunol 2022; 13:1021924. [PMID: 36569849 PMCID: PMC9768584 DOI: 10.3389/fimmu.2022.1021924] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 10/26/2022] [Indexed: 12/12/2022] Open
Abstract
Bile acids are critical for the digestion and absorption of lipids and fat-soluble vitamins; however, evidence continues to emerge supporting additional roles for bile acids as signaling molecules. After they are synthesized from cholesterol in the liver, primary bile acids are modified into secondary bile acids by gut flora contributing to a diverse pool and making the composition of bile acids highly sensitive to alterations in gut microbiota. Disturbances in bile acid homeostasis have been observed in patients with Inflammatory Bowel Diseases (IBD). In fact, a decrease in secondary bile acids was shown to occur because of IBD-associated dysbiosis. Further, the increase in luminal bile acids due to malabsorption in Crohn's ileitis and ileal resection has been implicated in the induction of diarrhea and the exacerbation of inflammation. A causal link between bile acid signaling and intestinal inflammation has been recently suggested. With respect to potential mechanisms related to bile acids and IBD, several studies have provided strong evidence for direct effects of bile acids on intestinal permeability in porcine and rodent models as well as in humans. Interestingly, different bile acids were shown to exert distinct effects on the inflammatory response and intestinal permeability that require careful consideration. Such findings revealed a potential effect for changes in the relative abundance of different bile acids on the induction of inflammation by bile acids and the development of IBD. This review summarizes current knowledge about the roles for bile acids as inflammatory mediators and modulators of intestinal permeability mainly in the context of inflammatory bowel diseases.
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Affiliation(s)
- Nathan Calzadilla
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois, Chicago, IL, United States
- Department of Bioengineering, University of Illinois, Chicago, IL, United States
| | - Shane M. Comiskey
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois, Chicago, IL, United States
| | - Pradeep K. Dudeja
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois, Chicago, IL, United States
- Research and Development, Jesse Brown VA Medical Center, Chicago, IL, United States
| | - Seema Saksena
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois, Chicago, IL, United States
- Research and Development, Jesse Brown VA Medical Center, Chicago, IL, United States
| | - Ravinder K. Gill
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois, Chicago, IL, United States
| | - Waddah A. Alrefai
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois, Chicago, IL, United States
- Research and Development, Jesse Brown VA Medical Center, Chicago, IL, United States
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12
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Wang JS, Liu JC. Intestinal microbiota in the treatment of metabolically associated fatty liver disease. World J Clin Cases 2022; 10:11240-11251. [PMID: 36387806 PMCID: PMC9649557 DOI: 10.12998/wjcc.v10.i31.11240] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/07/2022] [Accepted: 09/27/2022] [Indexed: 02/05/2023] Open
Abstract
Metabolically associated fatty liver disease (MAFLD) is a common cause of chronic liver disease, the hepatic manifestation of metabolic syndrome. Despite the increasing incidence of MAFLD, no effective treatment is available. Recent research indicates a link between the intestinal microbiota and liver diseases such as MAFLD. The composition and characteristics of the intestinal microbiota and therapeutic perspectives of MAFLD are reviewed in the current study. An imbalance in the intestinal microbiota increases intestinal permeability and exposure of the liver to adipokines. Furthermore, we focused on reviewing the latest "gut-liver axis" targeted therapy.
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Affiliation(s)
- Ji-Shuai Wang
- Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - Jin-Chun Liu
- Department of Gastroenterology, The First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
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13
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Zhu T, Hu B, Ye C, Hu H, Yin M, Zhang Z, Li S, Liu Y, Liu H. Bletilla striata Oligosaccharides Improve Ulcerative Colitis by Regulating Gut Microbiota and Intestinal Metabolites in Dextran Sulfate Sodium-Induced Mice. Front Pharmacol 2022; 13:867525. [PMID: 35548331 PMCID: PMC9081565 DOI: 10.3389/fphar.2022.867525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 03/28/2022] [Indexed: 12/11/2022] Open
Abstract
This study aimed to elucidate the mechanism of Bletilla striata oligosaccharides (BO) in the treatment of ulcerative colitis (UC). A UC mouse model was induced by 3% Dextran sodium sulfate (DSS), and BO (200 mg/kg/d) were administered for intervention. The results show that BO effectively inhibited the release of intestinal inflammatory cytokines such as IL-6, TNF-α, and IL-1β. Also, BO profoundly elevated the secretion of mucins and the expression of tight junction (TJ) proteins to attenuate dysfunction of the intestinal barrier. The 16S rDNA sequencing and liquid chromatography/gas chromatography-mass spectrometer (LC/GC-MS) analysis of mouse feces revealed that BO regulated the disturbance of gut microbiota and intestinal metabolites. By using the in vitro fermentation broth of BO and gut microbiota-depleted mice treated with antibiotics, we confirmed the protection of BO against UC. In conclusion, BO played a role in improving UC by modulating gut microbial composition and intestinal metabolites, which provided new therapeutic strategies for UC treatment.
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Affiliation(s)
- Tianxiang Zhu
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, China
| | - Baifei Hu
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, China
| | - Cheng Ye
- Wuhan Customs Technology Center, Wuhan, China
| | - Haiming Hu
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, China
| | - Mingzhu Yin
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, China
| | - Zhigang Zhang
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, China
| | - Shuiqing Li
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, China
| | - Yanju Liu
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, China
- *Correspondence: Yanju Liu, ; Hongtao Liu,
| | - Hongtao Liu
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, China
- *Correspondence: Yanju Liu, ; Hongtao Liu,
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14
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De Muynck K, Vanderborght B, Van Vlierberghe H, Devisscher L. The Gut-Liver Axis in Chronic Liver Disease: A Macrophage Perspective. Cells 2021; 10:2959. [PMID: 34831182 PMCID: PMC8616442 DOI: 10.3390/cells10112959] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 02/07/2023] Open
Abstract
Chronic liver disease (CLD) is a growing health concern which accounts for two million deaths per year. Obesity, alcohol overconsumption, and progressive cholestasis are commonly characterized by persistent low-grade inflammation and advancing fibrosis, which form the basis for development of end-stage liver disease complications, including hepatocellular carcinoma. CLD pathophysiology extends to the intestinal tract and is characterized by intestinal dysbiosis, bile acid dysregulation, and gut barrier disruption. In addition, macrophages are key players in CLD progression and intestinal barrier breakdown. Emerging studies are unveiling macrophage heterogeneity and driving factors of their plasticity in health and disease. To date, in-depth investigation of how gut-liver axis disruption impacts the hepatic and intestinal macrophage pool in CLD pathogenesis is scarce. In this review, we give an overview of the role of intestinal and hepatic macrophages in homeostasis and gut-liver axis disruption in progressive stages of CLD.
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Affiliation(s)
- Kevin De Muynck
- Gut-Liver Immunopharmacology Unit, Department of Basic and Applied Medical Sciences, Liver Research Center Ghent, Ghent University, 9000 Ghent, Belgium; (K.D.M.); (B.V.)
- Hepatology Research Unit, Department of Internal Medicine and Pediatrics, Liver Research Center Ghent, Ghent University, 9000 Ghent, Belgium;
| | - Bart Vanderborght
- Gut-Liver Immunopharmacology Unit, Department of Basic and Applied Medical Sciences, Liver Research Center Ghent, Ghent University, 9000 Ghent, Belgium; (K.D.M.); (B.V.)
- Hepatology Research Unit, Department of Internal Medicine and Pediatrics, Liver Research Center Ghent, Ghent University, 9000 Ghent, Belgium;
| | - Hans Van Vlierberghe
- Hepatology Research Unit, Department of Internal Medicine and Pediatrics, Liver Research Center Ghent, Ghent University, 9000 Ghent, Belgium;
| | - Lindsey Devisscher
- Gut-Liver Immunopharmacology Unit, Department of Basic and Applied Medical Sciences, Liver Research Center Ghent, Ghent University, 9000 Ghent, Belgium; (K.D.M.); (B.V.)
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15
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Alexeev EE, Dowdell AS, Henen MA, Lanis JM, Lee JS, Cartwright IM, Schaefer REM, Ornelas A, Onyiah JC, Vögeli B, Colgan SP. Microbial-derived indoles inhibit neutrophil myeloperoxidase to diminish bystander tissue damage. FASEB J 2021; 35:e21552. [PMID: 33826788 DOI: 10.1096/fj.202100027r] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 03/03/2021] [Accepted: 03/08/2021] [Indexed: 01/20/2023]
Abstract
During episodes of acute inflammation, polymorphonuclear leukocytes (PMNs) are actively recruited to sites of inflammation or injury where they provide anti-microbial and wound-healing functions. One enzyme crucial for fulfilling these functions is myeloperoxidase (MPO), which generates hypochlorous acid from Cl- and hydrogen peroxide. The potential exists, however, that uncontrolled the extracellular generation of hypochlorous acid by MPO can cause bystander tissue damage and inhibit the healing response. Previous work suggests that the microbiota-derived tryptophan metabolites 1H-indole and related molecules ("indoles") are protective during intestinal inflammation, although their precise mechanism of action is unclear. In the present work, we serendipitously discovered that indoles are potent and selective inhibitors of MPO. Using both primary human PMNs and recombinant human MPO in a cell-free system, we revealed that indoles inhibit MPO at physiologic concentrations. Particularly, indoles block the chlorinating activity of MPO, a reliable marker for MPO-associated tissue damage, as measured by coulometric-coupled HPLC. Further, we observed direct interaction between indoles and MPO using the established biochemical techniques microscale thermophoresis and STD-NMR. Utilizing a murine colitis model, we demonstrate that indoles inhibit bystander tissue damage, reflected in decreased colon 3-chlorotyrosine and pro-inflammatory chemokine expression in vivo. Taken together, these results identify microbiota-derived indoles that acts as endogenous immunomodulatory compounds through their actions on MPO, suggesting a symbiotic association between the gut microbiota and host innate immune system. Such findings offer exciting new targets for future pharmacological intervention.
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Affiliation(s)
- Erica E Alexeev
- Mucosal Inflammation Program, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.,Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Alexander S Dowdell
- Mucosal Inflammation Program, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Morkos A Henen
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.,Department of Pharmaceutical Organic Chemistry, Mansoura University, Mansoura, Egypt
| | - Jordi M Lanis
- Mucosal Inflammation Program, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - J Scott Lee
- Mucosal Inflammation Program, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Ian M Cartwright
- Mucosal Inflammation Program, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Rachel E M Schaefer
- Mucosal Inflammation Program, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Alfredo Ornelas
- Mucosal Inflammation Program, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Joseph C Onyiah
- Mucosal Inflammation Program, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Beat Vögeli
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Sean P Colgan
- Mucosal Inflammation Program, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
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16
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Moslemi Z, Bahrami M, Hosseini E, Mansourian M, Daneshyar Z, Eftekhari M, Shakerinasab N, Asfaram A, Panahi kokhdan E, Barmoudeh Z, Doustimotlagh AH. Portulaca oleracea methanolic extract attenuate bile duct ligation-induced acute liver injury through hepatoprotective and anti-inflammatory effects. Heliyon 2021; 7:e07604. [PMID: 34355097 PMCID: PMC8322275 DOI: 10.1016/j.heliyon.2021.e07604] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 05/15/2021] [Accepted: 07/14/2021] [Indexed: 12/12/2022] Open
Abstract
Introduction Cholestasis is a liver disease caused by a malfunction of the hepato-biliary system. Oxidative stress as a systemic complication is the main characteristic of cholestasis. The aim of this study was to evaluate the anti-inflammatory and hepatoprotective effects of Portulaca oleracea (PO) methanolic extract on liver dysfunction and tissue damage induced by bile duct ligation (BDL) in rats. Materials and methods Twenty-eight male Wistar rats were randomly divided into four groups: sham control (SC), BDL alone, SC plus 500 mg/kg methanolic extract of PO orally for 1 week, and BDL plus 500 mg/kg methanolic extract of PO orally for 1 week. After 1 week, the animals were anesthetized, and the liver and blood samples were taken from each animal. Biochemical parameters, oxidative stress biomarkers, histopathological changes, as well as the gene expression of IL-1, TNF-α, TGF-β, and α-SMA have been evaluated. Results The methanolic extract of PO at a dose of 500 mg/kg significantly decreased the plasma levels of aminotransferases, alkaline phosphatase as compared to BDL group (P < 0.05), while it had no significant effect on the levels of oxidative stress markers in the hepatic tissue. The plasma level of malondialdehyde and ferric-reducing antioxidant power were markedly elevated in the BDL group in comparison to SC group (P < 0.05), while treatment with PO significantly reduced these markers (P < 0.05). The administration of PO attenuated hydroxyproline content, bile duct proliferation, and inflammation score in the cholestatic liver in contrast to non-treated BDL rats (P < 0.05). Moreover, the methanolic extract of PO markedly declined the expression of TNF-α and TGF-β pro inflammatory genes in contrast to BDL rats. Conclusions Taken together, our findings showed that PO attenuated liver injury by decreasing liver function tests, inflammation, and hydroxyproline content. As a result, it is suggested that PO can be applied in cholestatic liver damage as a therapeutic or adjuvant agent.
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Affiliation(s)
- Zahra Moslemi
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Mina Bahrami
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Ebrahim Hosseini
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Mahboubeh Mansourian
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Zahra Daneshyar
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Mahdieh Eftekhari
- Department of Pharmacognosy and Pharmaceutical Biotechnology, Faculty of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Nasrin Shakerinasab
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Arash Asfaram
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | | | - Zahra Barmoudeh
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Amir Hossein Doustimotlagh
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
- Corresponding author.
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17
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Gijbels E, Pieters A, De Muynck K, Vinken M, Devisscher L. Rodent models of cholestatic liver disease: A practical guide for translational research. Liver Int 2021; 41:656-682. [PMID: 33486884 PMCID: PMC8048655 DOI: 10.1111/liv.14800] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 01/08/2021] [Accepted: 01/15/2021] [Indexed: 12/12/2022]
Abstract
Cholestatic liver disease denotes any situation associated with impaired bile flow concomitant with a noxious bile acid accumulation in the liver and/or systemic circulation. Cholestatic liver disease can be subdivided into different types according to its clinical phenotype, such as biliary atresia, drug-induced cholestasis, gallstone liver disease, intrahepatic cholestasis of pregnancy, primary biliary cholangitis and primary sclerosing cholangitis. Considerable effort has been devoted to elucidating underlying mechanisms of cholestatic liver injuries and explore novel therapeutic and diagnostic strategies using animal models. Animal models employed according to their appropriate applicability domain herein play a crucial role. This review provides an overview of currently available in vivo animal models, fit-for-purpose in modelling different types of cholestatic liver diseases. Moreover, a practical guide and workflow is provided which can be used for translational research purposes, including all advantages and disadvantages of currently available in vivo animal models.
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Affiliation(s)
- Eva Gijbels
- Department of In Vitro Toxicology and Dermato‐CosmetologyVrije Universiteit BrusselBrusselsBelgium,Gut‐Liver Immunopharmacology Unit, Basic and Applied Medical SciencesLiver Research Center GhentFaculty of Medicine and Health SciencesGhent UniversityGhentBelgium
| | - Alanah Pieters
- Department of In Vitro Toxicology and Dermato‐CosmetologyVrije Universiteit BrusselBrusselsBelgium
| | - Kevin De Muynck
- Gut‐Liver Immunopharmacology Unit, Basic and Applied Medical SciencesLiver Research Center GhentFaculty of Medicine and Health SciencesGhent UniversityGhentBelgium,Hepatology Research UnitInternal Medicine and PaediatricsLiver Research Center GhentFaculty of Medicine and Health SciencesGhent UniversityGhentBelgium
| | - Mathieu Vinken
- Department of In Vitro Toxicology and Dermato‐CosmetologyVrije Universiteit BrusselBrusselsBelgium
| | - Lindsey Devisscher
- Gut‐Liver Immunopharmacology Unit, Basic and Applied Medical SciencesLiver Research Center GhentFaculty of Medicine and Health SciencesGhent UniversityGhentBelgium
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18
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Gut Immunity and Microbiota Dysbiosis Are Associated with Altered Bile Acid Metabolism in LPS-Challenged Piglets. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6634821. [PMID: 33833852 PMCID: PMC8018853 DOI: 10.1155/2021/6634821] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 03/08/2021] [Accepted: 03/12/2021] [Indexed: 12/11/2022]
Abstract
Bacterial infections are among the major factors that cause stress and intestinal diseases in piglets. Lipopolysaccharide (LPS), a major component of the Gram-negative bacteria outer membrane, is commonly employed for inducing an immune response in normal organisms for convenience. The association between LPS stimulation and gut immunity has been reported. However, the effects of gut immunity on microbial homeostasis and metabolism of host, especially bile acid and lipid metabolism in piglets, remain unclear. Hence, in the current study, we elucidated the effect of gut immunity on microbial balance and host metabolism. Twenty-one-day-old healthy piglets (male) were randomly assigned into the CON and LPS groups. After 4 hours of treatment, related tissues and cecal contents were obtained for further analysis. The obtained results showed that stimulated LPS considerably damaged the morphology of intestinal villi and enhanced the relative expression of proinflammatory cytokines. Besides, LPS partially changed the microbial structure as indicated by β-diversity and increased operational taxonomic units (OTUs) related to Oxalobacter and Ileibacterium. Furthermore, bile acid, a large class of gut microbiota metabolites, was also assessed by many proteins related to the enterohepatic circulation of bile acids. It was also revealed that LPS markedly inhibited the mRNA and protein expression of TGR5 and FXR (bile acid receptors) in the ileum, which expressed negative feedback on bile acid de novo synthesis. Additionally, results indicated upregulated mRNA of genes associated with the production of bile acid in the liver tissues. Moreover, LPS reduced the expression of bile acid transporters in the ileum and liver tissues and further disturbed the normal enterohepatic circulation. Taken together, gut immunity and microbial dysbiosis are associated with altered bile acid metabolism in LPS-challenged piglets, which provided theoretical basis for revealing the potential mechanism of intestinal inflammation in swine and seeking nutrients to resist intestinal damage.
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