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Yang D, Lyu C, He K, Pang K, Guo Z, Wu D. Bile Acid Diarrhea: From Molecular Mechanisms to Clinical Diagnosis and Treatment in the Era of Precision Medicine. Int J Mol Sci 2024; 25:1544. [PMID: 38338820 PMCID: PMC10855108 DOI: 10.3390/ijms25031544] [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: 12/19/2023] [Revised: 01/18/2024] [Accepted: 01/25/2024] [Indexed: 02/12/2024] Open
Abstract
Bile acid diarrhea (BAD) is a multifaceted intestinal disorder involving intricate molecular mechanisms, including farnesoid X receptor (FXR), fibroblast growth factor receptor 4 (FGFR4), and Takeda G protein-coupled receptor 5 (TGR5). Current diagnostic methods encompass bile acid sequestrants (BAS), 48-h fecal bile acid tests, serum 7α-hydroxy-4-cholesten-3-one (C4), fibroblast growth factor 19 (FGF19) testing, and 75Selenium HomotauroCholic acid test (75SeHCAT). Treatment primarily involves BAS and FXR agonists. However, due to the limited sensitivity and specificity of current diagnostic methods, as well as suboptimal treatment efficacy and the presence of side effects, there is an urgent need to establish new diagnostic and treatment methods. While prior literature has summarized various diagnostic and treatment methods and the pathogenesis of BAD, no previous work has linked the two. This review offers a molecular perspective on the clinical diagnosis and treatment of BAD, with a focus on FXR, FGFR4, and TGR5, emphasizing the potential for identifying additional molecular mechanisms as treatment targets and bridging the gap between diagnostic and treatment methods and molecular mechanisms for a novel approach to the clinical management of BAD.
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Affiliation(s)
- Daiyu Yang
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China; (D.Y.); (K.P.); (Z.G.)
| | - Chengzhen Lyu
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China; (C.L.); (K.H.)
| | - Kun He
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China; (C.L.); (K.H.)
| | - Ke Pang
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China; (D.Y.); (K.P.); (Z.G.)
| | - Ziqi Guo
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China; (D.Y.); (K.P.); (Z.G.)
| | - Dong Wu
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China; (C.L.); (K.H.)
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van Rosmalen BV, Visentin M, Furumaya A, van Delden OM, Kazemier G, van Gulik TM, Verheij J, Stieger B. Association Between Gadoxetic Acid-Enhanced Magnetic Resonance Imaging, Organic Anion Transporters, and Farnesoid X Receptor in Benign Focal Liver Lesions. Drug Metab Dispos 2024; 52:118-125. [PMID: 38050024 DOI: 10.1124/dmd.123.001492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/21/2023] [Accepted: 11/27/2023] [Indexed: 12/06/2023] Open
Abstract
The organic anion uptake and efflux transporters [organic anion-transporting polypeptide (OATP)1B1, OATP1B3 and multidrug resistance-associated protein (MRP)2 and MRP3] that mediate the transport of the hepatobiliary-specific contrast agent gadoxetate (Gd-EOB-DTPA) are direct or indirect targets of the farnesoid X receptor (FXR), a key regulator of bile acid and lipid homeostasis. In benign liver tumors, FXR expression and activation is not yet characterized. We investigated the expression and activation of FXR and its targets in hepatocellular adenoma (HCA) and focal nodular hyperplasia (FNH) and their correlation with Gd-EOB-DTPA-enhanced magnetic resonance imaging (MRI). Gd-EOB-DTPA MRI patterns were assessed by an expert radiologist. The intensity of the lesions on the hepatobiliary phase was correlated to mRNA expression levels of OATP1B1, OATP1B3, MRP2, MRP3, FXR, and small heterodimer partner (SHP) in fresh surgical specimens of patients with FNH or HCA subtypes. Normal and tumor sample pairs of 43 HCA and 14 FNH were included. All FNH (14/14) were hyperintense. Of the 34 HCA with available Gd-EOB-DTPA-enhanced MRI, 6 were hyperintense and 28 HCA were hypointense. OATP1B3 was downregulated in the hypointense tumors compared with normal surrounding liver tissue (2.77±3.59 vs. 12.9±15.6, P < 0.001). A significant positive correlation between FXR expression and activation and OATP1B3 expression level was found in the HCA cohort. SHP showed a trend toward downregulation in hypointense HCA. In conclusion, this study suggests that the MRI relative signal in HCA may reflect expression level and/or activity of SHP and FXR. Moreover, our data confirms the pivotal role of OATP1B3 in Gd-EOB-DTPA uptake in HCA. SIGNIFICANCE STATEMENT: FXR represents a valuable target for the treatment of liver disease and metabolic syndrome. Currently, two molecules, ursodeoxycholate and obeticholate, are approved for the treatment of primary biliary cirrhosis and cholestasis, with several compounds in clinical trials for the treatment of metabolic dysfunction-associated fatty liver disease. Because FXR expression and activation is associated with gadoxetate accumulation in HCA, an atypical gadoxetate-enhanced MRI pattern might arise in patients under FXR-targeted therapy, thereby complicating the differential diagnosis.
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Affiliation(s)
- Belle V van Rosmalen
- Amsterdam UMC Location University of Amsterdam, Department of Surgery, Amsterdam, The Netherlands (B.V.vR., A.F., T.M.vG.); Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, The Netherlands (B.V.vR., A.F., O.M.vD., T.M.vG., J.V.); Department of Clinical Pharmacology and Toxicology, University Hospital Zurich, Zürich, Switzerland (M.V., B.S.); Amsterdam UMC Location University of Amsterdam, Department of Radiology, Amsterdam, The Netherlands (O.M.vD.); Amsterdam UMC Location Vrije Universiteit Amsterdam, Department of Surgery, Amsterdam, The Netherlands (G.K.); Cancer Center Amsterdam, Amsterdam, The Netherlands (G.K.); and Amsterdam UMC Location University of Amsterdam, Department of Pathology, Amsterdam, The Netherlands (J.V.)
| | - Michele Visentin
- Amsterdam UMC Location University of Amsterdam, Department of Surgery, Amsterdam, The Netherlands (B.V.vR., A.F., T.M.vG.); Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, The Netherlands (B.V.vR., A.F., O.M.vD., T.M.vG., J.V.); Department of Clinical Pharmacology and Toxicology, University Hospital Zurich, Zürich, Switzerland (M.V., B.S.); Amsterdam UMC Location University of Amsterdam, Department of Radiology, Amsterdam, The Netherlands (O.M.vD.); Amsterdam UMC Location Vrije Universiteit Amsterdam, Department of Surgery, Amsterdam, The Netherlands (G.K.); Cancer Center Amsterdam, Amsterdam, The Netherlands (G.K.); and Amsterdam UMC Location University of Amsterdam, Department of Pathology, Amsterdam, The Netherlands (J.V.)
| | - Alicia Furumaya
- Amsterdam UMC Location University of Amsterdam, Department of Surgery, Amsterdam, The Netherlands (B.V.vR., A.F., T.M.vG.); Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, The Netherlands (B.V.vR., A.F., O.M.vD., T.M.vG., J.V.); Department of Clinical Pharmacology and Toxicology, University Hospital Zurich, Zürich, Switzerland (M.V., B.S.); Amsterdam UMC Location University of Amsterdam, Department of Radiology, Amsterdam, The Netherlands (O.M.vD.); Amsterdam UMC Location Vrije Universiteit Amsterdam, Department of Surgery, Amsterdam, The Netherlands (G.K.); Cancer Center Amsterdam, Amsterdam, The Netherlands (G.K.); and Amsterdam UMC Location University of Amsterdam, Department of Pathology, Amsterdam, The Netherlands (J.V.)
| | - Otto M van Delden
- Amsterdam UMC Location University of Amsterdam, Department of Surgery, Amsterdam, The Netherlands (B.V.vR., A.F., T.M.vG.); Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, The Netherlands (B.V.vR., A.F., O.M.vD., T.M.vG., J.V.); Department of Clinical Pharmacology and Toxicology, University Hospital Zurich, Zürich, Switzerland (M.V., B.S.); Amsterdam UMC Location University of Amsterdam, Department of Radiology, Amsterdam, The Netherlands (O.M.vD.); Amsterdam UMC Location Vrije Universiteit Amsterdam, Department of Surgery, Amsterdam, The Netherlands (G.K.); Cancer Center Amsterdam, Amsterdam, The Netherlands (G.K.); and Amsterdam UMC Location University of Amsterdam, Department of Pathology, Amsterdam, The Netherlands (J.V.)
| | - Geert Kazemier
- Amsterdam UMC Location University of Amsterdam, Department of Surgery, Amsterdam, The Netherlands (B.V.vR., A.F., T.M.vG.); Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, The Netherlands (B.V.vR., A.F., O.M.vD., T.M.vG., J.V.); Department of Clinical Pharmacology and Toxicology, University Hospital Zurich, Zürich, Switzerland (M.V., B.S.); Amsterdam UMC Location University of Amsterdam, Department of Radiology, Amsterdam, The Netherlands (O.M.vD.); Amsterdam UMC Location Vrije Universiteit Amsterdam, Department of Surgery, Amsterdam, The Netherlands (G.K.); Cancer Center Amsterdam, Amsterdam, The Netherlands (G.K.); and Amsterdam UMC Location University of Amsterdam, Department of Pathology, Amsterdam, The Netherlands (J.V.)
| | - Thomas M van Gulik
- Amsterdam UMC Location University of Amsterdam, Department of Surgery, Amsterdam, The Netherlands (B.V.vR., A.F., T.M.vG.); Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, The Netherlands (B.V.vR., A.F., O.M.vD., T.M.vG., J.V.); Department of Clinical Pharmacology and Toxicology, University Hospital Zurich, Zürich, Switzerland (M.V., B.S.); Amsterdam UMC Location University of Amsterdam, Department of Radiology, Amsterdam, The Netherlands (O.M.vD.); Amsterdam UMC Location Vrije Universiteit Amsterdam, Department of Surgery, Amsterdam, The Netherlands (G.K.); Cancer Center Amsterdam, Amsterdam, The Netherlands (G.K.); and Amsterdam UMC Location University of Amsterdam, Department of Pathology, Amsterdam, The Netherlands (J.V.)
| | - Joanne Verheij
- Amsterdam UMC Location University of Amsterdam, Department of Surgery, Amsterdam, The Netherlands (B.V.vR., A.F., T.M.vG.); Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, The Netherlands (B.V.vR., A.F., O.M.vD., T.M.vG., J.V.); Department of Clinical Pharmacology and Toxicology, University Hospital Zurich, Zürich, Switzerland (M.V., B.S.); Amsterdam UMC Location University of Amsterdam, Department of Radiology, Amsterdam, The Netherlands (O.M.vD.); Amsterdam UMC Location Vrije Universiteit Amsterdam, Department of Surgery, Amsterdam, The Netherlands (G.K.); Cancer Center Amsterdam, Amsterdam, The Netherlands (G.K.); and Amsterdam UMC Location University of Amsterdam, Department of Pathology, Amsterdam, The Netherlands (J.V.)
| | - Bruno Stieger
- Amsterdam UMC Location University of Amsterdam, Department of Surgery, Amsterdam, The Netherlands (B.V.vR., A.F., T.M.vG.); Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam, The Netherlands (B.V.vR., A.F., O.M.vD., T.M.vG., J.V.); Department of Clinical Pharmacology and Toxicology, University Hospital Zurich, Zürich, Switzerland (M.V., B.S.); Amsterdam UMC Location University of Amsterdam, Department of Radiology, Amsterdam, The Netherlands (O.M.vD.); Amsterdam UMC Location Vrije Universiteit Amsterdam, Department of Surgery, Amsterdam, The Netherlands (G.K.); Cancer Center Amsterdam, Amsterdam, The Netherlands (G.K.); and Amsterdam UMC Location University of Amsterdam, Department of Pathology, Amsterdam, The Netherlands (J.V.)
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Shi L, Zhao T, Huang L, Pan X, Wu T, Feng X, Chen T, Wu J, Niu J. Engineered FGF19 ΔKLB protects against intrahepatic cholestatic liver injury in ANIT-induced and Mdr2-/- mice model. BMC Biotechnol 2023; 23:43. [PMID: 37789318 PMCID: PMC10548598 DOI: 10.1186/s12896-023-00810-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 09/07/2023] [Indexed: 10/05/2023] Open
Abstract
BACKGROUND The major safety concern of the clinical application of wild type FGF19 (FGF19WT) emerges given that its extended treatment causes hepatocellular carcinoma. Therefore, we previously generated a safer FGF19 variant - FGF19ΔKLB, which have same effects on glycemic control and bile acid production but much less mitogenic activity. However, it remains unclear as to whether FGF19ΔKLB ameliorates intrahepatic cholestasis. RESULTS We found that, similar to that of FGF19WT, the chronic administration of FGF19ΔKLB protects mice from cholestatic liver injury in these two models. The therapeutic benefits of FGF19ΔKLB on cholestatic liver damage are attributable, according to the following mechanistic investigation, to the reduction of BA production, liver inflammation, and fibrosis. More importantly, FGF19ΔKLB did not induce any tumorigenesis effects during its prolonged treatment. CONCLUSIONS Together, our findings raise hope that FGF19ΔKLB may represent a useful therapeutic strategy for the treatment of intrahepatic cholestasis.
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Affiliation(s)
- Lu Shi
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Tiantian Zhao
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Lei Huang
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Xiaomin Pan
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Tianzhen Wu
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Xin Feng
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Taoli Chen
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Jiamin Wu
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China.
| | - Jianlou Niu
- Pingyang Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325499, Zhejiang, China.
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Ahmad F, Saha P, Singh V, Wahid M, Mandal RK, Nath Mishra B, Fagoonee S, Haque S. Diet as a modifiable factor in tumorigenesis: Focus on microbiome-derived bile acid metabolites and short-chain fatty acids. Food Chem 2023; 410:135320. [PMID: 36610090 DOI: 10.1016/j.foodchem.2022.135320] [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: 08/31/2022] [Revised: 12/01/2022] [Accepted: 12/23/2022] [Indexed: 12/25/2022]
Abstract
Several lines of evidences have implicated the resident microbiome as a key factor in the modulation of host physiology and pathophysiology; including the resistance to cancers. Gut microbiome heavily influences host lipid homeostasis by their modulatory effects on the metabolism of bile acids (BAs). Microbiota-derived BA metabolites such as deoxycholic acid (DCA), lithocholic acid (LCA), and ursodeoxycholic acid (UDCA) are implicated in the pathogeneses of various cancer types. The pathogenic mechanisms are multimodal in nature, with widespread influences on the host immunes system, cell survival and growth signalling and DNA damage. On the other hand, short-chain fatty acids (SCFAs) produced by the resident microbial activity on indigestible dietary fibres as well as during intermittent fasting regimens (such as the Ramazan fasting) elicit upregulation of the beneficial anti-inflammatory and anticancer pathways in the host. The present review first provides a brief overview of the molecular mechanisms of microbiota-derived lipid metabolites in promotion of tumour development. The authors then discuss the potential of diet as a therapeutic route for beneficial alteration of microbiota and the consequent changes in the production of SCFAs, particularly butyrate, in relation to the cancer prevention and treatment.
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Affiliation(s)
- Faraz Ahmad
- Department of Biotechnology, School of Bio-Sciences and Technology (SBST), Vellore Institute of Technology, Vellore 632014, India.
| | - Priyanka Saha
- Department of Biotechnology, School of Bio-Sciences and Technology (SBST), Vellore Institute of Technology, Vellore 632014, India
| | - Vineeta Singh
- Department of Biotechnology, Institute of Engineering and Technology, Dr. A.P.J. Abdul Kalam Technical University, Lucknow 226021 (Uttar Pradesh), India
| | - Mohd Wahid
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan 45142, Saudi Arabia
| | - Raju K Mandal
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan 45142, Saudi Arabia
| | - Bhartendu Nath Mishra
- Department of Biotechnology, Institute of Engineering and Technology, Dr. A.P.J. Abdul Kalam Technical University, Lucknow 226021 (Uttar Pradesh), India
| | - Sharmila Fagoonee
- Institute of Biostructure and Bioimaging, National Research Council (CNR), Molecular Biotechnology Center, Turin, Italy
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan 45142, Saudi Arabia; Centre of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates.
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Yu L, Liu Y, Wang S, Zhang Q, Zhao J, Zhang H, Narbad A, Tian F, Zhai Q, Chen W. Cholestasis: exploring the triangular relationship of gut microbiota-bile acid-cholestasis and the potential probiotic strategies. Gut Microbes 2023; 15:2181930. [PMID: 36864554 PMCID: PMC9988349 DOI: 10.1080/19490976.2023.2181930] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 02/09/2023] [Indexed: 03/04/2023] Open
Abstract
Cholestasis is a condition characterized by the abnormal production or excretion of bile, and it can be induced by a variety of causes, the factors of which are extremely complex. Although great progress has been made in understanding cholestasis pathogenesis, the specific mechanisms remain unclear. Therefore, it is important to understand and distinguish cholestasis from different etiologies, which will also provide indispensable theoretical support for the development of corresponding therapeutic drugs. At present, the treatment of cholestasis mainly involves several bile acids (BAs) and their derivatives, most of which are in the clinical stage of development. Multiple lines of evidence indicate that ecological disorders of the gut microbiota are strongly related to the occurrence of cholestasis, in which BAs also play a pivotal role. Recent studies indicate that probiotics seem to have certain effects on cholestasis, but further confirmation from clinical trials is required. This paper reviews the etiology of and therapeutic strategies for cholestasis; summarizes the similarities and differences in inducement, symptoms, and mechanisms of related diseases; and provides information about the latest pharmacological therapies currently available and those under research for cholestasis. We also reviewed the highly intertwined relationship between gut microbiota-BA-cholestasis, revealing the potential role and possible mechanism of probiotics in the treatment of cholestasis.
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Affiliation(s)
- Leilei Yu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- International Joint Research Laboratory for Probiotics, Jiangnan University, Wuxi, Jiangsu, China
| | - Yaru Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Shunhe Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Qingsong Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- International Joint Research Laboratory for Probiotics, Jiangnan University, Wuxi, Jiangsu, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- International Joint Research Laboratory for Probiotics, Jiangnan University, Wuxi, Jiangsu, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, China
| | - Arjan Narbad
- International Joint Research Laboratory for Probiotics, Jiangnan University, Wuxi, Jiangsu, China
- Gut Health and Microbiome Institute Strategic Programme, Quadram Institute Bioscience, Norwich, UK
| | - Fengwei Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- International Joint Research Laboratory for Probiotics, Jiangnan University, Wuxi, Jiangsu, China
| | - Qixiao Zhai
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- International Joint Research Laboratory for Probiotics, Jiangnan University, Wuxi, Jiangsu, China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- International Joint Research Laboratory for Probiotics, Jiangnan University, Wuxi, Jiangsu, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, China
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Dong Y, Xu T, Xiao G, Hu Z, Chen J. Opportunities and challenges for synthetic biology in the therapy of inflammatory bowel disease. Front Bioeng Biotechnol 2022; 10:909591. [PMID: 36032720 PMCID: PMC9399643 DOI: 10.3389/fbioe.2022.909591] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/15/2022] [Indexed: 11/13/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a complex, chronic intestinal inflammatory disorder that primarily includes Crohn’s disease (CD) and ulcerative colitis (UC). Although traditional antibiotics and immunosuppressants are known as the most effective and commonly used treatments, some limitations may be expected, such as limited efficacy in a small number of patients and gut flora disruption. A great many research studies have been done with respect to the etiology of IBD, while the composition of the gut microbiota is suggested as one of the most influential factors. Along with the development of synthetic biology and the continuing clarification of IBD etiology, broader prospects for novel approaches to IBD therapy could be obtained. This study presents an overview of the currently existing treatment options and possible therapeutic targets at the preclinical stage with respect to microbial synthesis technology in biological therapy. This study is highly correlated to the following topics: microbiota-derived metabolites, microRNAs, cell therapy, calreticulin, live biotherapeutic products (LBP), fecal microbiota transplantation (FMT), bacteriophages, engineered bacteria, and their functional secreted synthetic products for IBD medical implementation. Considering microorganisms as the main therapeutic component, as a result, the related clinical trial stability, effectiveness, and safety analysis may be the major challenges for upcoming research. This article strives to provide pharmaceutical researchers and developers with the most up-to-date information for adjuvant medicinal therapies based on synthetic biology.
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Affiliation(s)
- Yumeng Dong
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
- Suzhou U-Synbio Co., Ltd., Suzhou, China
| | - Tiangang Xu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Guozheng Xiao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Ziyan Hu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Jingyu Chen
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
- *Correspondence: Jingyu Chen,
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Huang X, Fan M, Huang W. Pleiotropic roles of FXR in liver and colorectal cancers. Mol Cell Endocrinol 2022; 543:111543. [PMID: 34995680 PMCID: PMC8818033 DOI: 10.1016/j.mce.2021.111543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 12/15/2021] [Accepted: 12/20/2021] [Indexed: 12/01/2022]
Abstract
Nuclear receptor farnesoid X receptor (FXR) is generally considered a cell protector of enterohepatic tissues and a suppressor of liver cancer and colorectal carcinoma (CRC). Loss or reduction of FXR expression occurs during carcinogenesis, and the FXR level is inversely associated with the aggressive behaviors of the malignancy. Global deletion of FXR and tissue-specific deletion of FXR display distinct effects on tumorigenesis. Epigenetic silencing and inflammatory context are two main contributors to impaired FXR expression and activity. FXR exerts its antitumorigenic function via the following mechanisms: 1) FXR regulates multiple metabolic processes, notably bile acid homeostasis; 2) FXR antagonizes hepatic and enteric inflammation; 3) FXR impedes aberrant activation of some cancer-related pathways; and 4) FXR downregulates a number of oncogenes while upregulating some tumor suppressor genes. Restoring FXR functions via its agonists provides a therapeutic approach for patients with liver cancer and CRC. However, an in-depth understanding of the species-specific pharmacological effects is a prerequisite for assessing the clinical safety and efficacy of FXR agonists in human cancer treatment.
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Affiliation(s)
- Xiongfei Huang
- Department of Pathology and Institute of Oncology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, 350004, PR China; Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, 350108, PR China.
| | - Mingjie Fan
- 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.
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Interplay between Dysbiosis of Gut Microbiome, Lipid Metabolism, and Tumorigenesis: Can Gut Dysbiosis Stand as a Prognostic Marker in Cancer? DISEASE MARKERS 2022; 2022:2941248. [PMID: 35178126 PMCID: PMC8847007 DOI: 10.1155/2022/2941248] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 01/11/2022] [Indexed: 02/07/2023]
Abstract
The gut bacterial community is involved in the metabolism of bile acids and short-chain fatty acids (SCFAs). Bile acids are involved in the absorption of fat and the regulation of lipid homeostasis through emulsification and are transformed into unconjugated bile acids by the gut microbiota. The gut microbiota is actively involved in the production of bile acid metabolites, such as deoxycholic acid, lithocholic acid, choline, and SCFAs such as acetate, butyrate, and propionate. Metabolites derived from the gut microbiota or modified gut microbiota metabolites contribute significantly to host pathophysiology. Gut bacterial metabolites, such as deoxycholic acid, contribute to the development of hepatocellular carcinoma and colon cancer by factors such as inflammation and oxidative DNA damage. Butyrate, which is derived from gut bacteria such as Megasphaera, Roseburia, Faecalibacterium, and Clostridium, is associated with the activation of Treg cell differentiation in the intestine through histone acetylation. Butyrate averts the action of class I histone deacetylases (HDAC), such as HDAC1 and HDAC3, which are responsible for the transcription of genes such as p21/Cip1, and cyclin D3 through hyperacetylation of histones, which orchestrates G1 cell cycle arrest. It is essential to identify the interaction between the gut microbiota and bile acid and SCFA metabolism to understand their role in gastrointestinal carcinogenesis including colon, gastric, and liver cancer. Metagenomic approaches with bioinformatic analyses are used to identify the bacterial species in the metabolism of bile acids and SCFAs. This review provides an overview of the current knowledge of gut microbiota-derived bile acid metabolism in tumor development and whether it can stand as a marker for carcinogenesis. Additionally, this review assesses the evidence of gut microbiota-derived short-chain fatty acids including butyric acid in antitumor activity. Future research is required to identify the beneficial commensal gut bacteria and their metabolites which will be considered to be therapeutic targets in inflammation-mediated gastrointestinal cancers.
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Xia J, Yu P, Zeng Z, Ma M, Yan X, Zhao J, Gong D, Zhang G, Wang J. Effects of Medium Chain Triglycerides on Lipid Metabolism in High-fat Diet Induced Obese Rats. Food Funct 2022; 13:8998-9009. [DOI: 10.1039/d2fo01711c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study aimed to compare effects of three different medium chain triglycerides (MCT) on lipid metabolism in obese rats. High fat diet was fed to the Sprague–Dawley rats to induce...
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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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Abstract
Our understanding of nonalcoholic fatty liver disease pathophysiology continues to advance rapidly. Accordingly, the field has moved from describing the clinical phenotype through the presence of nonalcoholic steatohepatitis (NASH) and degree of fibrosis to deep phenotyping with a description of associated comorbidities, genetic polymorphisms and environmental influences that could be associated with disease progression. These insights have fuelled a robust therapeutic pipeline across a variety of new targets to resolve steatohepatitis or reverse fibrosis, or both. Additionally, some of these therapies have beneficial effects that extend beyond the liver, such as effects on glycaemic control, lipid profile and weight loss. In addition, emerging therapies for NASH cirrhosis would have to demonstrate either reversal of fibrosis with associated reduction in portal hypertension or at least delay the progression with eventual decrease in liver-related outcomes. For non-cirrhotic NASH, it is the expectation that reversal of fibrosis by one stage or resolution of NASH with no worsening in fibrosis will need to be accompanied by overall survival benefits. In this Review, we summarize NASH therapies that have progressed to phase II and beyond. We also discuss some of the potential clinical challenges with the use of these new therapies when approved.
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The Role of Fibroblast Growth Factor 19 in Hepatocellular Carcinoma. THE AMERICAN JOURNAL OF PATHOLOGY 2021; 191:1180-1192. [PMID: 34000282 DOI: 10.1016/j.ajpath.2021.04.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 04/09/2021] [Accepted: 04/22/2021] [Indexed: 12/12/2022]
Abstract
Hepatocellular carcinoma (HCC) is the fifth most common type of cancer and the third leading cause of cancer-related deaths worldwide. Liver resection or liver transplantation is the most effective therapy for HCC because drugs approved by the US Food and Drug Administration to treat patients with unresectable HCC have an unfavorable overall survival rate. Therefore, the development of biomarkers for early diagnosis and effective therapy strategies are still necessary to improve patient outcomes. Fibroblast growth factor (FGF) 19 was amplified in patients with HCC from various studies, including patients from The Cancer Genome Atlas. FGF19 plays a syngeneic function with other signaling pathways in primary liver cancer development, such as epidermal growth factor receptor, Wnt/β-catenin, the endoplasmic reticulum-related signaling pathway, STAT3/IL-6, RAS, and extracellular signal-regulated protein kinase, among others. The current review presents a comprehensive description of the FGF19 signaling pathway involved in liver cancer development. The use of big data and bioinformatic analysis can provide useful clues for further studies of the FGF19 pathway in HCC, including its application as a biomarker, targeted therapy, and combination therapy strategies.
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Jia W, Wei M, Rajani C, Zheng X. Targeting the alternative bile acid synthetic pathway for metabolic diseases. Protein Cell 2020; 12:411-425. [PMID: 33252713 PMCID: PMC8106556 DOI: 10.1007/s13238-020-00804-9] [Citation(s) in RCA: 158] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 10/21/2020] [Indexed: 12/12/2022] Open
Abstract
The gut microbiota is profoundly involved in glucose and lipid metabolism, in part by regulating bile acid (BA) metabolism and affecting multiple BA-receptor signaling pathways. BAs are synthesized in the liver by multi-step reactions catalyzed via two distinct routes, the classical pathway (producing the 12α-hydroxylated primary BA, cholic acid), and the alternative pathway (producing the non-12α-hydroxylated primary BA, chenodeoxycholic acid). BA synthesis and excretion is a major pathway of cholesterol and lipid catabolism, and thus, is implicated in a variety of metabolic diseases including obesity, insulin resistance, and nonalcoholic fatty liver disease. Additionally, both oxysterols and BAs function as signaling molecules that activate multiple nuclear and membrane receptor-mediated signaling pathways in various tissues, regulating glucose, lipid homeostasis, inflammation, and energy expenditure. Modulating BA synthesis and composition to regulate BA signaling is an interesting and novel direction for developing therapies for metabolic disease. In this review, we summarize the most recent findings on the role of BA synthetic pathways, with a focus on the role of the alternative pathway, which has been under-investigated, in treating hyperglycemia and fatty liver disease. We also discuss future perspectives to develop promising pharmacological strategies targeting the alternative BA synthetic pathway for the treatment of metabolic diseases.
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Affiliation(s)
- Wei Jia
- Center for Translational Medicine and Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China. .,School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Meilin Wei
- Center for Translational Medicine and Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Cynthia Rajani
- University of Hawaii Cancer Center, Honolulu, HI, 96813, USA
| | - Xiaojiao Zheng
- Center for Translational Medicine and Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China.
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Hu Y, Xu J, Chen Q, Liu M, Wang S, Yu H, Zhang Y, Wang T. Regulation effects of total flavonoids in Morus alba L. on hepatic cholesterol disorders in orotic acid induced NAFLD rats. BMC Complement Med Ther 2020; 20:257. [PMID: 32807146 PMCID: PMC7433163 DOI: 10.1186/s12906-020-03052-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 08/11/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Mulberry leaves are the dried leaves of Morus alba L., flavonoids from mulberry leaves (MLF) has showed regulatory effect on abnormal lipid metabolism, but the regulatory mechanism of MLF on cholesterol metabolism is still missing. This study was designed to investigate the effect of MLF and its active metabolite quercetin on regulating cholesterol disorders. METHODS The mechanism of MLF on alleviating liver injury and regulating cholesterol was examined in dyslipidemic SD rats. The regulatory mechanism of quercetin for cholesterol disorders have also been detected through lipid laden HepG2 cell model. RESULTS Our results showed that MLF significantly inhibited lipid accumulation and alleviate hepatic injury in NAFLD rat model. The hepatic expression level of SREBP2, HMGCR and miR-33a were significantly down-regulated, while CYP7A1 was induced by MLF treatment. In vitro, Quercetin significantly decreased lipid accumulation in HepG2 cells. Mechanistically, quercetin could inhibit the mRNA and protein expression level of SREBP2 and HMGCR with or without LDL treatment. In addition, quercetin could also reduce the LXRβ while induced SR-BI mRNA expression. CONCLUSION Our findings indicate that MLF and quercetin could reduce the excessive cholesterol accumulation in vivo and in vitro. These cholesterol-regulating phenomenon might attribute to its effect on down-regulating the expression of lipid-related markers such as SREBP2 and HMGCR, which may exert a protective role in the NAFLD treatment.
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Affiliation(s)
- Yucheng Hu
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Jingqi Xu
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Qian Chen
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Mengyang Liu
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Sijian Wang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Haiyang Yu
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Yi Zhang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Tao Wang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
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Wang SZ, Yu YJ, Adeli K. Role of Gut Microbiota in Neuroendocrine Regulation of Carbohydrate and Lipid Metabolism via the Microbiota-Gut-Brain-Liver Axis. Microorganisms 2020; 8:microorganisms8040527. [PMID: 32272588 PMCID: PMC7232453 DOI: 10.3390/microorganisms8040527] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/10/2020] [Accepted: 04/03/2020] [Indexed: 02/06/2023] Open
Abstract
Gut microbiota play an important role in maintaining intestinal health and are involved in the metabolism of carbohydrates, lipids, and amino acids. Recent studies have shown that the central nervous system (CNS) and enteric nervous system (ENS) can interact with gut microbiota to regulate nutrient metabolism. The vagal nerve system communicates between the CNS and ENS to control gastrointestinal tract functions and feeding behavior. Vagal afferent neurons also express receptors for gut peptides that are secreted from enteroendocrine cells (EECs), such as cholecystokinin (CCK), ghrelin, leptin, peptide tyrosine tyrosine (PYY), glucagon-like peptide-1 (GLP-1), and 5-hydroxytryptamine (5-HT; serotonin). Gut microbiota can regulate levels of these gut peptides to influence the vagal afferent pathway and thus regulate intestinal metabolism via the microbiota-gut-brain axis. In addition, bile acids, short-chain fatty acids (SCFAs), trimethylamine-N-oxide (TMAO), and Immunoglobulin A (IgA) can also exert metabolic control through the microbiota-gut-liver axis. This review is mainly focused on the role of gut microbiota in neuroendocrine regulation of nutrient metabolism via the microbiota-gut-brain-liver axis.
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Affiliation(s)
- Shu-Zhi Wang
- Institute of Pharmacy and Pharmacology, University of South China, Hengyang 421001, China;
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, China
- Molecular Medicine, Research Institute, The Hospital for Sick Children and Department of Physiology, University of Toronto, Toronto, ON M5G 1X8, Canada
| | - Yi-Jing Yu
- Molecular Medicine, Research Institute, The Hospital for Sick Children and Department of Physiology, University of Toronto, Toronto, ON M5G 1X8, Canada
| | - Khosrow Adeli
- Molecular Medicine, Research Institute, The Hospital for Sick Children and Department of Physiology, University of Toronto, Toronto, ON M5G 1X8, Canada
- Correspondence: ; Tel.: +1-416-813-8682; Fax: +1-416-813-6257
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Lamers C, Merk D. Discovery, Structural Refinement and Therapeutic Potential of Farnesoid X Receptor Activators. ANTI-FIBROTIC DRUG DISCOVERY 2020. [DOI: 10.1039/9781788015783-00076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Farnesoid X receptor acts as bile acid sensing transcription factor and has been identified as valuable molecular drug target to treat severe liver disorders, such as non-alcoholic steatohepatitis (NASH). Preclinical and clinical data indicate anti-fibrotic effects obtained with FXR activation that also appear promising for other fibrotic diseases beyond NASH. Strong efforts in FXR ligand discovery have yielded potent steroidal and non-steroidal FXR activators, some of which have been studied in clinical trials. While the structure–activity relationship of some FXR agonist frameworks have been studied extensively, the structural diversity of potent FXR activator chemotypes is still limited to a handful of well-studied compound classes. Together with safety concerns related to full therapeutic activation of FXR, this indicates the need for novel innovative FXR ligands with selective modulatory properties. This chapter evaluates FXR's value as drug target with emphasis on fibrotic diseases, analyses FXR ligand recognition and requirements and focuses on the discovery and structural refinement of leading FXR activator chemotypes.
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Affiliation(s)
- Christina Lamers
- University Basel, Molecular Pharmacy Klingelberstr. 50 CH-4056 Basel Switzerland
| | - Daniel Merk
- Goethe University Frankfurt, Institute of Pharmaceutical Chemistry Max-von-Laue-Str. 9 D-60438 Frankfurt Germany
- Swiss Federal Institute of Technology (ETH) Zurich, Institute of Pharmaceutical Sciences Vladimir-Prelog-Weg 4 CH-8093 Zurich Switzerland
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Chiang JYL, Ferrell JM. Bile acid receptors FXR and TGR5 signaling in fatty liver diseases and therapy. Am J Physiol Gastrointest Liver Physiol 2020; 318:G554-G573. [PMID: 31984784 PMCID: PMC7099488 DOI: 10.1152/ajpgi.00223.2019] [Citation(s) in RCA: 190] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Bile acid synthesis is the most significant pathway for catabolism of cholesterol and for maintenance of whole body cholesterol homeostasis. Bile acids are physiological detergents that absorb, distribute, metabolize, and excrete nutrients, drugs, and xenobiotics. Bile acids also are signal molecules and metabolic integrators that activate nuclear farnesoid X receptor (FXR) and membrane Takeda G protein-coupled receptor 5 (TGR5; i.e., G protein-coupled bile acid receptor 1) to regulate glucose, lipid, and energy metabolism. The gut-to-liver axis plays a critical role in the transformation of primary bile acids to secondary bile acids, in the regulation of bile acid synthesis to maintain composition within the bile acid pool, and in the regulation of metabolic homeostasis to prevent hyperglycemia, dyslipidemia, obesity, and diabetes. High-fat and high-calorie diets, dysbiosis, alcohol, drugs, and disruption of sleep and circadian rhythms cause metabolic diseases, including alcoholic and nonalcoholic fatty liver diseases, obesity, diabetes, and cardiovascular disease. Bile acid-based drugs that target bile acid receptors are being developed for the treatment of metabolic diseases of the liver.
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Affiliation(s)
- John Y. L. Chiang
- Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, Ohio
| | - Jessica M. Ferrell
- Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, Ohio
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Liu T, Song X, Khan S, Li Y, Guo Z, Li C, Wang S, Dong W, Liu W, Wang B, Cao H. The gut microbiota at the intersection of bile acids and intestinal carcinogenesis: An old story, yet mesmerizing. Int J Cancer 2019; 146:1780-1790. [DOI: 10.1002/ijc.32563] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 07/05/2019] [Indexed: 12/24/2022]
Affiliation(s)
- Tianyu Liu
- Department of Gastroenterology and Hepatology, General HospitalTianjin Medical University Tianjin China
| | - Xueli Song
- Department of Gastroenterology and Hepatology, General HospitalTianjin Medical University Tianjin China
| | - Samiullah Khan
- Department of Gastroenterology and Hepatology, General HospitalTianjin Medical University Tianjin China
| | - Yun Li
- Department of Pharmacy, General HospitalTianjin Medical University Tianjin China
| | - Zixuan Guo
- Department of Gastroenterology and Hepatology, General HospitalTianjin Medical University Tianjin China
| | - Chuqiao Li
- Department of Gastroenterology and Hepatology, General HospitalTianjin Medical University Tianjin China
| | - Sinan Wang
- Department of Gastroenterology and Hepatology, General HospitalTianjin Medical University Tianjin China
| | - Wenxiao Dong
- Department of Gastroenterology and Hepatology, General HospitalTianjin Medical University Tianjin China
| | - Wentian Liu
- Department of Gastroenterology and Hepatology, General HospitalTianjin Medical University Tianjin China
| | - Bangmao Wang
- Department of Gastroenterology and Hepatology, General HospitalTianjin Medical University Tianjin China
| | - Hailong Cao
- Department of Gastroenterology and Hepatology, General HospitalTianjin Medical University Tianjin China
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Kovač U, Skubic C, Bohinc L, Rozman D, Režen T. Oxysterols and Gastrointestinal Cancers Around the Clock. Front Endocrinol (Lausanne) 2019; 10:483. [PMID: 31379749 PMCID: PMC6653998 DOI: 10.3389/fendo.2019.00483] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 07/03/2019] [Indexed: 12/24/2022] Open
Abstract
This review focuses on the role of oxidized sterols in three major gastrointestinal cancers (hepatocellular carcinoma, pancreatic, and colon cancer) and how the circadian clock affects the carcinogenesis by regulating the lipid metabolism and beyond. While each field of research (cancer, oxysterols, and circadian clock) is well-studied within their specialty, little is known about the intertwining mechanisms and how these influence the disease etiology in each cancer type. Oxysterols are involved in pathology of these cancers, but final conclusions about their protective or damaging effects are elusive, since the effect depends on the type of oxysterol, concentration, and the cell type. Oxysterol concentrations, the expression of key regulators liver X receptors (LXR), farnesoid X receptor (FXR), and oxysterol-binding proteins (OSBP) family are modulated in tumors and plasma of cancer patients, exposing these proteins and selected oxysterols as new potential biomarkers and drug targets. Evidence about how cholesterol/oxysterol pathways are intertwined with circadian clock is building. Identified key contact points are different forms of retinoic acid receptor related orphan receptors (ROR) and LXRs. RORs and LXRs are both regulated by sterols/oxysterols and the circadian clock and in return also regulate the same pathways, representing a complex interplay between sterol metabolism and the clock. With this in mind, in addition to classical therapies to modulate cholesterol in gastrointestinal cancers, such as the statin therapy, the time is ripe also for therapies where time and duration of the drug application is taken as an important factor for successful therapies. The final goal is the personalized approach with chronotherapy for disease management and treatment in order to increase the positive drug effects.
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Li M, Hu X, Xu Y, Hu X, Zhang C, Pang S. A Possible Mechanism of Metformin in Improving Insulin Resistance in Diabetic Rat Models. Int J Endocrinol 2019; 2019:3248527. [PMID: 31737069 PMCID: PMC6815615 DOI: 10.1155/2019/3248527] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 04/11/2019] [Accepted: 09/03/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Type 2 diabetes has become one of the most common diseases worldwide, causing a serious social burden. As a first-line treatment for diabetes, metformin can effectively improve insulin resistance. It has been reported that 12α-hydroxylated BA (mainly CA) is associated with insulin resistance. The purpose of this study was to analyze the changes in CA and possible signaling mechanisms in diabetic rats after metformin intervention. METHODS HepG2 cells were cultured after adding different concentrations of metformin. The cell viability was measured using CCK8 kit, and the expression of FXR, MAFG, and CYP8B1 in cells was detected by WB. The rat models of type 2 diabetes were induced by low-dose streptozotocin by feeding a high-fat diet, and the control rats (CON) were fed on normal food; the diabetic rats (DM) were given a high-fat diet without supplementation with metformin, while the metformin-treated diabetic rats (DM + MET) were given a high-fat diet and supplemented with metformin. Biochemical parameters were detected at the end of the test. Expression levels of FXR, CYP8B1, and MAFG were assessed by WB. Serum CA were measured using an enzyme-linked immunosorbent assay (ELISA). RESULTS In HepG2 cells, metformin dose-dependently enhanced the transcriptional activity of FXR and MAFG and inhibited the expression of CYP8B1. Metformin-treated DM rats showed improved glucose and bile acid metabolism. In addition, significantly increased FXR and MAFG and decreased CYP8B1 were observed in DM + MET rats. At the same time, the CA content of metformin-treated rats was lower than that of diabetic rats. CONCLUSION Changes in CA synthesis after metformin treatment may be associated with inhibition of CYP8B1. These results may play an important role in improving insulin sensitivity after metformin treatment.
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Affiliation(s)
- Mengsiyu Li
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan, China
| | - Xiaowen Hu
- Department of Infectious Diseases, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Yeqiu Xu
- Department of Endocrinology, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Xiaolin Hu
- Department of Endocrinology, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Chunxue Zhang
- Department of Radiology, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Shuguang Pang
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan, China
- Department of Endocrinology, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
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