1
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Gonzalez E, Lee MD, Tierney BT, Lipieta N, Flores P, Mishra M, Beckett L, Finkelstein A, Mo A, Walton P, Karouia F, Barker R, Jansen RJ, Green SJ, Weging S, Kelliher J, Singh NK, Bezdan D, Galazska J, Brereton NJB. Spaceflight alters host-gut microbiota interactions. NPJ Biofilms Microbiomes 2024; 10:71. [PMID: 39209868 PMCID: PMC11362537 DOI: 10.1038/s41522-024-00545-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 07/31/2024] [Indexed: 09/04/2024] Open
Abstract
The ISS rodent habitat has provided crucial insights into the impact of spaceflight on mammals, inducing symptoms characteristic of liver disease, insulin resistance, osteopenia, and myopathy. Although these physiological responses can involve the microbiome on Earth, host-microbiota interactions during spaceflight are still being elucidated. We explore murine gut microbiota and host gene expression in the colon and liver after 29 and 56 days of spaceflight using multiomics. Metagenomics revealed significant changes in 44 microbiome species, including relative reductions in bile acid and butyrate metabolising bacteria like Extibacter muris and Dysosmobacter welbionis. Functional prediction indicate over-representation of fatty acid and bile acid metabolism, extracellular matrix interactions, and antibiotic resistance genes. Host gene expression described corresponding changes to bile acid and energy metabolism, and immune suppression. These changes imply that interactions at the host-gut microbiome interface contribute to spaceflight pathology and that these interactions might critically influence human health and long-duration spaceflight feasibility.
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Affiliation(s)
- E Gonzalez
- Microbiome Unit, Canadian Centre for Computational Genomics, Department of Human Genetics, McGill University, Montréal, Canada
- Centre for Microbiome Research, McGill University, Montréal, Canada
| | - M D Lee
- Exobiology Branch, NASA Ames Research Centre, Moffett Field, CA, USA
- Blue Marble Space Institute of Science, Seattle, WA, USA
| | - B T Tierney
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - N Lipieta
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA, 02142, USA
| | - P Flores
- BioServe Space Technologies, University of Colorado Boulder, Boulder, CO, USA
| | - M Mishra
- Grossman School of Medicine, New York University, New York, USA
| | - L Beckett
- University of Nottingham, Nottingham, NG7 2RD, UK
| | - A Finkelstein
- NASA GeneLab for High Schools (GL4HS) program, NASA Ames Research Centre, Moffett Field, CA, USA
| | - A Mo
- NASA GeneLab for High Schools (GL4HS) program, NASA Ames Research Centre, Moffett Field, CA, USA
| | - P Walton
- NASA GeneLab for High Schools (GL4HS) program, NASA Ames Research Centre, Moffett Field, CA, USA
| | - F Karouia
- Exobiology Branch, NASA Ames Research Centre, Moffett Field, CA, USA
- Blue Marble Space Institute of Science, Seattle, WA, USA
- Centre for Space Medicine, Baylor College of Medicine, Houston, TX, USA
| | - R Barker
- Blue Marble Space Institute of Science, Seattle, WA, USA
- Yuri GmbH, Wiesentalstr. 40, 88074, Meckenbeuren, Germany
- University of Wisconsin-Madison, Madison, WI, USA
| | - R J Jansen
- Department of Public Health, North Dakota State University, Fargo, ND, USA
- Genomics, Phenomics, and Bioinformatics Program, North Dakota State University, Fargo, ND, USA
| | - S J Green
- Genomics and Microbiome Core Facility, Rush University Medical Centre, 1653 W. Congress Parkway, Chicago, IL, 60612, USA
| | - S Weging
- Institute of Computer Science, Martin-Luther University Halle-Wittenberg, Halle, Germany
| | - J Kelliher
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - N K Singh
- Department of Industrial Relations, Division of Occupational Safety and Health, Oakland, USA
| | - D Bezdan
- University of Wisconsin-Madison, Madison, WI, USA
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany
- NGS Competence Centre Tübingen (NCCT), University of Tübingen, Tübingen, Germany
| | - J Galazska
- Space Biosciences Research Branch, NASA Ames Research Centre, Moffett Field, CA, USA
| | - N J B Brereton
- School of Biology and Environmental Science, University College Dublin, Dublin, Ireland.
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2
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Schwarcz S, Kovács P, Nyerges P, Ujlaki G, Sipos A, Uray K, Bai P, Mikó E. The bacterial metabolite, lithocholic acid, has antineoplastic effects in pancreatic adenocarcinoma. Cell Death Discov 2024; 10:248. [PMID: 38782891 PMCID: PMC11116504 DOI: 10.1038/s41420-024-02023-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 05/08/2024] [Accepted: 05/10/2024] [Indexed: 05/25/2024] Open
Abstract
Lithocholic acid (LCA) is a secondary bile acid. LCA enters the circulation after bacterial synthesis in the gastrointestinal tract, reaches distantly located cancer cells, and influences their behavior. LCA was considered carcinogenic, but recent studies demonstrated that LCA has antitumor effects. We assessed the possible role of LCA in pancreatic adenocarcinoma. At the serum reference concentration, LCA induced a multi-pronged antineoplastic program in pancreatic adenocarcinoma cells. LCA inhibited cancer cell proliferation and induced mesenchymal-to-epithelial (MET) transition that reduced cell invasion capacity. LCA induced oxidative/nitrosative stress by decreasing the expression of nuclear factor, erythroid 2-like 2 (NRF2) and inducing inducible nitric oxide synthase (iNOS). The oxidative/nitrosative stress increased protein nitration and lipid peroxidation. Suppression of oxidative stress by glutathione (GSH) or pegylated catalase (pegCAT) blunted LCA-induced MET. Antioxidant genes were overexpressed in pancreatic adenocarcinoma and decreased antioxidant levels correlated with better survival of pancreatic adenocarcinoma patients. Furthermore, LCA treatment decreased the proportions of cancer stem cells. Finally, LCA induced total and ATP-linked mitochondrial oxidation and fatty acid oxidation. LCA exerted effects through the farnesoid X receptor (FXR), vitamin D receptor (VDR), and constitutive androstane receptor (CAR). LCA did not interfere with cytostatic agents used in the chemotherapy of pancreatic adenocarcinoma. Taken together, LCA is a non-toxic compound and has antineoplastic effects in pancreatic adenocarcinoma.
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Affiliation(s)
- Szandra Schwarcz
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Patrik Kovács
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Petra Nyerges
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Gyula Ujlaki
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
- HUN-REN-UD Cell Biology and Signaling Research Group, Debrecen, 4032, Hungary
| | - Adrienn Sipos
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
- HUN-REN-UD Cell Biology and Signaling Research Group, Debrecen, 4032, Hungary
| | - Karen Uray
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Péter Bai
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
- HUN-REN-UD Cell Biology and Signaling Research Group, Debrecen, 4032, Hungary
- MTA-DE Lendület Laboratory of Cellular Metabolism, Debrecen, 4032, Hungary
- Research Center for Molecular Medicine, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Edit Mikó
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary.
- MTA-DE Lendület Laboratory of Cellular Metabolism, Debrecen, 4032, Hungary.
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3
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Di Giorgio C, Morretta E, Lupia A, Bellini R, Massa C, Urbani G, Bordoni M, Marchianò S, Lachi G, Rapacciuolo P, Finamore C, Sepe V, Chiara Monti M, Moraca F, Natalizi N, Graziosi L, Distrutti E, Biagioli M, Catalanotti B, Donini A, Zampella A, Fiorucci S. Bile acids serve as endogenous antagonists of the Leukemia inhibitory factor (LIF) receptor in oncogenesis. Biochem Pharmacol 2024; 223:116134. [PMID: 38494064 DOI: 10.1016/j.bcp.2024.116134] [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: 12/04/2023] [Revised: 03/11/2024] [Accepted: 03/14/2024] [Indexed: 03/19/2024]
Abstract
The leukemia inhibitory factor (LIF) is member of interleukin (IL)-6 family of cytokines involved immune regulation, morphogenesis and oncogenesis. In cancer tissues, LIF binds a heterodimeric receptor (LIFR), formed by a LIFRβ subunit and glycoprotein(gp)130, promoting epithelial mesenchymal transition and cell growth. Bile acids are cholesterol metabolites generated at the interface of host metabolism and the intestinal microbiota. Here we demonstrated that bile acids serve as endogenous antagonist to LIFR in oncogenesis. The tissue characterization of bile acids content in non-cancer and cancer biopsy pairs from gastric adenocarcinomas (GC) demonstrated that bile acids accumulate within cancer tissues, with glyco-deoxycholic acid (GDCA) functioning as negative regulator of LIFR expression. In patient-derived organoids (hPDOs) from GC patients, GDCA reverses LIF-induced stemness and proliferation. In summary, we have identified the secondary bile acids as the first endogenous antagonist to LIFR supporting a development of bile acid-based therapies in LIF-mediated oncogenesis.
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Affiliation(s)
| | - Elva Morretta
- University of Salerno, Department of Pharmacy, Salerno, Italy
| | - Antonio Lupia
- University of Cagliari, Department of Life and Environmental Sciences, Cagliari, Italy; Net4Science srl, University "Magna Græcia", Campus Salvatore Venuta, Viale Europa, Catanzaro 88100, Italy
| | - Rachele Bellini
- University of Perugia, Department of Medicine and Surgery, Perugia, Italy
| | - Carmen Massa
- University of Perugia, Department of Medicine and Surgery, Perugia, Italy
| | - Ginevra Urbani
- University of Perugia, Department of Medicine and Surgery, Perugia, Italy
| | - Martina Bordoni
- University of Perugia, Department of Medicine and Surgery, Perugia, Italy
| | - Silvia Marchianò
- University of Perugia, Department of Medicine and Surgery, Perugia, Italy
| | - Ginevra Lachi
- University of Perugia, Department of Medicine and Surgery, Perugia, Italy
| | | | - Claudia Finamore
- University of Naples Federico II, Department of Pharmacy, Naples, Italy
| | - Valentina Sepe
- University of Naples Federico II, Department of Pharmacy, Naples, Italy
| | | | - Federica Moraca
- Net4Science srl, University "Magna Græcia", Campus Salvatore Venuta, Viale Europa, Catanzaro 88100, Italy; University of Naples Federico II, Department of Pharmacy, Naples, Italy
| | | | | | | | - Michele Biagioli
- University of Perugia, Department of Medicine and Surgery, Perugia, Italy
| | - Bruno Catalanotti
- University of Naples Federico II, Department of Pharmacy, Naples, Italy
| | - Annibale Donini
- University of Perugia, Department of Medicine and Surgery, Perugia, Italy
| | - Angela Zampella
- University of Naples Federico II, Department of Pharmacy, Naples, Italy
| | - Stefano Fiorucci
- University of Perugia, Department of Medicine and Surgery, Perugia, Italy.
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4
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Fleishman JS, Kumar S. Bile acid metabolism and signaling in health and disease: molecular mechanisms and therapeutic targets. Signal Transduct Target Ther 2024; 9:97. [PMID: 38664391 PMCID: PMC11045871 DOI: 10.1038/s41392-024-01811-6] [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: 11/28/2023] [Revised: 03/06/2024] [Accepted: 03/17/2024] [Indexed: 04/28/2024] Open
Abstract
Bile acids, once considered mere dietary surfactants, now emerge as critical modulators of macronutrient (lipid, carbohydrate, protein) metabolism and the systemic pro-inflammatory/anti-inflammatory balance. Bile acid metabolism and signaling pathways play a crucial role in protecting against, or if aberrant, inducing cardiometabolic, inflammatory, and neoplastic conditions, strongly influencing health and disease. No curative treatment exists for any bile acid influenced disease, while the most promising and well-developed bile acid therapeutic was recently rejected by the FDA. Here, we provide a bottom-up approach on bile acids, mechanistically explaining their biochemistry, physiology, and pharmacology at canonical and non-canonical receptors. Using this mechanistic model of bile acids, we explain how abnormal bile acid physiology drives disease pathogenesis, emphasizing how ceramide synthesis may serve as a unifying pathogenic feature for cardiometabolic diseases. We provide an in-depth summary on pre-existing bile acid receptor modulators, explain their shortcomings, and propose solutions for how they may be remedied. Lastly, we rationalize novel targets for further translational drug discovery and provide future perspectives. Rather than dismissing bile acid therapeutics due to recent setbacks, we believe that there is immense clinical potential and a high likelihood for the future success of bile acid therapeutics.
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Affiliation(s)
- Joshua S Fleishman
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY, USA
| | - Sunil Kumar
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY, USA.
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5
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Ohno R, Mainka M, Kirchhoff R, Hartung NM, Schebb NH. Sterol Derivatives Specifically Increase Anti-Inflammatory Oxylipin Formation in M2-like Macrophages by LXR-Mediated Induction of 15-LOX. Molecules 2024; 29:1745. [PMID: 38675565 PMCID: PMC11052137 DOI: 10.3390/molecules29081745] [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: 02/23/2024] [Revised: 03/29/2024] [Accepted: 04/07/2024] [Indexed: 04/28/2024] Open
Abstract
The understanding of the role of LXR in the regulation of macrophages during inflammation is emerging. Here, we show that LXR agonist T09 specifically increases 15-LOX abundance in primary human M2 macrophages. In time- and dose-dependent incubations with T09, an increase of 3-fold for ALOX15 and up to 15-fold for 15-LOX-derived oxylipins was observed. In addition, LXR activation has no or moderate effects on the abundance of macrophage marker proteins such as TLR2, TLR4, PPARγ, and IL-1RII, as well as surface markers (CD14, CD86, and CD163). Stimulation of M2-like macrophages with FXR and RXR agonists leads to moderate ALOX15 induction, probably due to side activity on LXR. Finally, desmosterol, 24(S),25-Ep cholesterol and 22(R)-OH cholesterol were identified as potent endogenous LXR ligands leading to an ALOX15 induction. LXR-mediated ALOX15 regulation is a new link between the two lipid mediator classes sterols, and oxylipins, possibly being an important tool in inflammatory regulation through anti-inflammatory oxylipins.
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Affiliation(s)
| | | | | | | | - Nils Helge Schebb
- Chair of Food Chemistry, Faculty of Mathematics and Natural Sciences, University of Wuppertal, Gaußstr. 20, 42119 Wuppertal, Germany
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6
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Opryshko V, Prokhach A, Akimov O, Riabushko M, Kostenko H, Kostenko V, Mishchenko A, Solovyova N, Kostenko V. Desmodium styracifolium: Botanical and ethnopharmacological insights, phytochemical investigations, and prospects in pharmacology and pharmacotherapy. Heliyon 2024; 10:e25058. [PMID: 38317880 PMCID: PMC10838797 DOI: 10.1016/j.heliyon.2024.e25058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 12/22/2023] [Accepted: 01/19/2024] [Indexed: 02/07/2024] Open
Abstract
The purpose of this inquiry is to provide a conprehensive summary and analysis of the literature concerning the pharmacological properties of components that can be extracted from Desmodium styracifolium, a preparation in Chinese medicine. This study also aims to explore their potential application in elaborating medicinal products for the effective prevention and treatment of such conditions as urolithiasis, cholelithiasis, type 2 diabetes mellitus, metabolic syndrome, pro-oxidant and inflammatory processes, etc. Several experimental studies confirmed the potential of D. styracifolium to influence mineral metabolism, to decrease the concentration of constituents involved in the formation of urinary calculi, and to reduce mineral encrustation in the urinary tract, as well as to alleviate the damage caused by crystal structures. This beneficial impact is achieved through a combination of antioxidant and anti-inflammatory actions, along with urine alkalinization. The cholelitholytic, choleretic, and hepatoprotective effects of D. styracifolium plants have been confirmed, primarily ascribed to the activation of the hepatic Xα receptor and the bile acid receptor, farnesoid X receptor, by the flavonoid shaftoside. Special attention is focused on the potential therapeutic applications of flavonoids derived from D. styracifolium for diseases associated with the development of chronic inflammation and systemic response, emphasizing the ability of flavonoids to exert antioxidant and anti-inflammatory effects by acting directly and through the modulation of transcription factors. It is concluded that new strategies for the prevention and treatment of urolithiasis, cholelithiasis, type 2 diabetes mellitus, metabolic syndrome, acute and chronic inflammatory processes may rely on the promising development of dosage forms of D. styracifolium with their subsequent preclinical and clinical trials.
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Affiliation(s)
- Valentyna Opryshko
- Dnipro State Medical University, Department of General and Clinical Pharmacy, Dnipro, Ukraine
| | - Anna Prokhach
- Dnipro State Medical University, Department of Oncology and Medical Radiology, Dnipro, Ukraine
| | - Oleh Akimov
- Poltava State Medical University, Department of Pathophysiology, Poltava, Ukraine
| | - Mykola Riabushko
- Poltava State Medical University, Department of Pharmacology, Clinical Pharmacology and Pharmacy, Poltava, Ukraine
| | - Heorhii Kostenko
- Poltava State Medical University, Department of Pathophysiology, Poltava, Ukraine
| | - Viktoriia Kostenko
- Poltava State Medical University, Department of Foreign Languages with Latin and Medical Terminology, Poltava, Ukraine
| | - Artur Mishchenko
- Poltava State Medical University, Department of Pathophysiology, Poltava, Ukraine
| | - Natalia Solovyova
- Poltava State Medical University, Department of Pathophysiology, Poltava, Ukraine
| | - Vitalii Kostenko
- Poltava State Medical University, Department of Pathophysiology, Poltava, Ukraine
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7
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Liu Y, Zhao Y, Liu Q, Li B, Daniel PV, Chen B, Wu Z. Effects of apolipoprotein H downregulation on lipid metabolism, fatty liver disease, and gut microbiota dysbiosis. J Lipid Res 2024; 65:100483. [PMID: 38101620 PMCID: PMC10818206 DOI: 10.1016/j.jlr.2023.100483] [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: 10/03/2023] [Revised: 11/27/2023] [Accepted: 12/04/2023] [Indexed: 12/17/2023] Open
Abstract
Apolipoprotein H (APOH) downregulation can cause hepatic steatosis and gut microbiota dysbiosis. However, the mechanism by which APOH-regulated lipid metabolism contributes to metabolic dysfunction-associated steatotic liver disease (MASLD) remains undetermined. Herein, we aim to explore the regulatory effect of APOH, mediated through various pathways, on metabolic homeostasis and MASLD pathogenesis. We analyzed serum marker levels, liver histopathology, and cholesterol metabolism-related gene expression in global ApoH-/- C57BL/6 male mice. We used RNA sequencing and metabolomic techniques to investigate the association between liver metabolism and bacterial composition. Fifty-two differentially expressed genes were identified between ApoH-/- and WT mice. The mRNA levels of de novo lipogenesis genes were highly upregulated in ApoH-/- mice than in WT mice. Fatty acid, glycerophospholipid, sterol lipid, and triglyceride levels were elevated, while hyodeoxycholic acid levels were significantly reduced in the liver tissues of ApoH-/- mice than in those of WT mice. Microbial beta diversity was lower in ApoH-/- mice than in WT mice, and gut microbiota metabolic functions were activated in ApoH-/- mice. Moreover, ApoH transcripts were downregulated in patients with MASLD, and APOH-related differential genes were enriched in lipid metabolism. Open-source transcript-level data from human metabolic dysfunction-associated steatohepatitis livers reinforced a significant association between metabolic dysfunction-associated steatohepatitis and APOH downregulation. In conclusion, our studies demonstrated that APOH downregulation aggravates fatty liver and induces gut microbiota dysbiosis by dysregulating bile acids. Our findings offer a novel perspective on APOH-mediated lipid metabolic dysbiosis and provide a valuable framework for deciphering the role of APOH in fatty liver disease.
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Affiliation(s)
- Yaming Liu
- Department of Gastroenterology and Hepatology, Xiamen University Zhongshan Hospital, Xiamen, FJ, China; Department of Digestive Diseases, School of Medicine, Xiamen University, Xiamen, FJ, China.
| | - Yiqun Zhao
- Department of Gastroenterology and Hepatology, Xiamen University Zhongshan Hospital, Xiamen, FJ, China; Department of Digestive Diseases, School of Medicine, Xiamen University, Xiamen, FJ, China
| | - Qiusong Liu
- Department of Tumor and Vascular Interventional Radiology, Xiamen University Zhongshan Hospital, Xiamen, FJ, China
| | - Binbin Li
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - P Vineeth Daniel
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Binbin Chen
- Department of Digestive Diseases, School of Medicine, Xiamen University, Xiamen, FJ, China
| | - Zeyi Wu
- Department of Computer Science and Engineering, University of California, San Diego, CA, USA
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8
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Fiorucci S, Sepe V, Biagioli M, Fiorillo B, Rapacciuolo P, Distrutti E, Zampella A. Development of bile acid activated receptors hybrid molecules for the treatment of inflammatory and metabolic disorders. Biochem Pharmacol 2023; 216:115776. [PMID: 37659739 DOI: 10.1016/j.bcp.2023.115776] [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: 07/06/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/04/2023]
Abstract
The farnesoid-x-receptor (FXR) and the G protein bile acid activated receptor (GPBAR)1 are two bile acid activated receptors highly expressed in entero-hepatic, immune, adipose and cardiovascular tissues. FXR and GPBAR1 are clinically validated targets in the treatment of metabolic disorders and FXR agonists are currently trialled in patients with non-alcoholic steato-hepatitis (NASH). Results of these trials, however, have raised concerns over safety and efficacy of selective FXR ligands suggesting that the development of novel agent designed to impact on multiple targets might have utility in the treatment of complex, multigenic, disorders. Harnessing on FXR and GPBAR1 agonists, several novel hybrid molecules have been developed, including dual FXR and GPBAR1 agonists and antagonists, while exploiting the flexibility of FXR agonists toward other nuclear receptors, dual FXR and peroxisome proliferators-activated receptors (PPARs) and liver-X-receptors (LXRs) and Pregnane-X-receptor (PXR) agonists have been reported. In addition, modifications of FXR agonists has led to the discovery of dual FXR agonists and fatty acid binding protein (FABP)1 and Leukotriene B4 hydrolase (LTB4H) inhibitors. The GPBAR1 binding site has also proven flexible to accommodate hybrid molecules functioning as GPBAR1 agonist and cysteinyl leukotriene receptor (CYSLTR)1 antagonists, as well as dual GPBAR1 agonists and retinoid-related orphan receptor (ROR)γt antagonists, dual GPBAR1 agonist and LXR antagonists and dual GPBAR1 agonists endowed with inhibitory activity on dipeptidyl peptidase 4 (DPP4). In this review we have revised the current landscape of FXR and GPBAR1 based hybrid agents focusing on their utility in the treatment of metabolic associated liver disorders.
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Affiliation(s)
- Stefano Fiorucci
- Dipartimento di Medicina e Chirurgia, Università di Perugia, Perugia, Italy.
| | - Valentina Sepe
- Dipartimento di Medicina e Chirurgia, Università di Perugia, Perugia, Italy
| | - Michele Biagioli
- Dipartimento di Medicina e Chirurgia, Università di Perugia, Perugia, Italy
| | - Bianca Fiorillo
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Pasquale Rapacciuolo
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano, 49, Naples I-80131, Italy
| | | | - Angela Zampella
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano, 49, Naples I-80131, Italy
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9
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Masse KE, Lu VB. Short-chain fatty acids, secondary bile acids and indoles: gut microbial metabolites with effects on enteroendocrine cell function and their potential as therapies for metabolic disease. Front Endocrinol (Lausanne) 2023; 14:1169624. [PMID: 37560311 PMCID: PMC10407565 DOI: 10.3389/fendo.2023.1169624] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 07/05/2023] [Indexed: 08/11/2023] Open
Abstract
The gastrointestinal tract hosts the largest ecosystem of microorganisms in the body. The metabolism of ingested nutrients by gut bacteria produces novel chemical mediators that can influence chemosensory cells lining the gastrointestinal tract. Specifically, hormone-releasing enteroendocrine cells which express a host of receptors activated by these bacterial metabolites. This review will focus on the activation mechanisms of glucagon-like peptide-1 releasing enteroendocrine cells by the three main bacterial metabolites produced in the gut: short-chain fatty acids, secondary bile acids and indoles. Given the importance of enteroendocrine cells in regulating glucose homeostasis and food intake, we will also discuss therapies based on these bacterial metabolites used in the treatment of metabolic diseases such as diabetes and obesity. Elucidating the mechanisms gut bacteria can influence cellular function in the host will advance our understanding of this fundamental symbiotic relationship and unlock the potential of harnessing these pathways to improve human health.
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Affiliation(s)
| | - Van B. Lu
- Department of Physiology and Pharmacology, University of Western Ontario, London, ON, Canada
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10
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Fotschki B, Ognik K, Cholewińska E, Grzelak-Błaszczyk K, Myszczyński K, Krauze M, Juśkiewicz J. Effect of Chromium Nanoparticles and Switching from a High-Fat to a Low-Fat Diet on the Cecal Microenvironment in Obese Rats. Nutrients 2023; 15:3118. [PMID: 37513536 PMCID: PMC10384463 DOI: 10.3390/nu15143118] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/09/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
Previous studies showed that chromium nanoparticles (Cr-NPs) might be used as dietary compounds against some obesity-related disorders; however, there is little information on how these compounds influence the gut microenvironment. The aim of this study was to investigate whether the negative effects of a high-fat diet in the large intestine of rats might be mitigated by switching to a low-fat diet and supplementation with Cr-NPs. Microbiota sequencing analysis revealed that the main action of the Cr-NPs was focused on changing the gut microbiota's activity. Supplementation with nanoparticles decreased the activity of β-glucuronidase and enzymes responsible for the hydrolysis of dietary oligosaccharides and, thus, lowered the concentration of short-chain fatty acids in the cecum. In this group, there was also an elevated level of cecal lithocholic acid. The most favorable effect on the regulation of obesity-related disorders was observed when a high-fat diet was switched to a low-fat diet. This dietary change enhanced the production of short-chain fatty acids, reduced the level of secondary bile acids, and increased the microbial taxonomic richness, microbial differences, and microbial enzymatic activity in the cecum. To conclude, supplementation of a high-fat diet with Cr-NPs primarily had an effect on intestinal microbial activity, but switching to a low-fat diet had a powerful, all-encompassing effect on the gut that improved both microbial activity and composition.
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Affiliation(s)
- Bartosz Fotschki
- Division of Food Science, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland
| | - Katarzyna Ognik
- Department of Biochemistry and Toxicology, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, Poland
| | - Ewelina Cholewińska
- Department of Biochemistry and Toxicology, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, Poland
| | - Katarzyna Grzelak-Błaszczyk
- Institute of Food Technology and Analysis, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland
| | - Kamil Myszczyński
- Molecular Biology Laboratory, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland
| | - Magdalena Krauze
- Department of Biochemistry and Toxicology, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, Poland
| | - Jerzy Juśkiewicz
- Division of Food Science, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland
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11
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Smaling A, Romero-Ramírez L, Mey J. Is TGR5 a therapeutic target for the treatment of spinal cord injury? J Neurochem 2023; 164:454-467. [PMID: 36409000 DOI: 10.1111/jnc.15727] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 11/03/2022] [Accepted: 11/17/2022] [Indexed: 11/23/2022]
Abstract
Bile acids, which are synthesized in liver and colon, facilitate the digestion of dietary lipids. In addition to this metabolic function, they also act as molecular signals with activities in the nervous system. These are mediated primarily by a G-protein-coupled bile acid receptor (known as TGR5). Preceded by a long tradition in Chinese medicine, bile acids are now being investigated as therapeutic options in several neuropathologies. Specifically, one bile acid, tauroursodeoxycholic acid (TUDCA), which passes the blood-brain barrier and shows anti-inflammatory and anti-apoptotic effects, has been tested in animal models of spinal cord injury (SCI). In this review, we discuss the evidence for a therapeutic benefit in these preclinical experiments. At the time of writing, 12 studies with TGR5 agonists have been published that report functional outcomes with rodent models of SCI. Most investigations found cytoprotective effects and benefits regarding the recovery of sensorimotor function in the subacute phase. When TUDCA was applied in a hydrogel into the lesion site, a significant improvement was obtained at 2 weeks after SCI. However, no lasting improvements with TUDCA treatment were found, when animals were assessed in later, chronic stages. A combination of TUDCA with stem cell injection failed to improve the effect of the cellular treatment. We conclude that the evidence does not support the use of TUDCA as a treatment of SCI. Nevertheless, cytoprotective effects suggest that different modes of application or combinatorial therapies might still be explored.
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Affiliation(s)
- Anna Smaling
- School of Mental Health and Neuroscience and EURON Graduate School of Neuroscience, Maastricht University, Maastricht, The Netherlands
| | | | - Jörg Mey
- School of Mental Health and Neuroscience and EURON Graduate School of Neuroscience, Maastricht University, Maastricht, The Netherlands.,Hospital Nacional de Parapléjicos, SESCAM, Toledo, Spain
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12
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Marchianò S, Biagioli M, Roselli R, Zampella A, Di Giorgio C, Bordoni M, Bellini R, Urbani G, Morretta E, Monti MC, Distrutti E, Fiorucci S. Beneficial effects of UDCA and norUDCA in a rodent model of steatosis are linked to modulation of GPBAR1/FXR signaling. Biochim Biophys Acta Mol Cell Biol Lipids 2022; 1867:159218. [PMID: 35985473 DOI: 10.1016/j.bbalip.2022.159218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/25/2022] [Accepted: 08/09/2022] [Indexed: 12/12/2022]
Abstract
Non-alcoholic steatosis (NAFLD) and steatohepatitis (NASH) are two highly prevalent human disorders for which therapy remains suboptimal. Bile acids play an essential role in regulating liver metabolism, and several bile acids-based therapy are currently investigated for their potential therapeutic efficacy in NAFLD/NASH. Bile acids exert their functions, at least in part, by modulating two main receptors the Farnesoid-x-receptor (FXR) and the G protein-coupled receptor, GPBAR1. In the present study we have compared the pharmacological effects of two bile acids, the ursodeoxycholic acid (UDCA) and its derivative norUDCA, in a model of NAFLD/NASH induced by feeding mice with a Western diet for 12 weeks. The results of these studies demonstrated that both UDCA and norUDCA protected against development of steatosis and fibrosis, but did not reduce the hepatocytes ballooning nor the development of a pro-atherogenic lipid profile. Both agents reduced liver lipogenesis and ameliorated insulin sensitivity and adipocytes signaling as shown by increased expression of adiponectin. Mechanistically, UDCA acts as weak GPBAR1 agonist, while norUDCA exerted no effect on both GPBAR1 and FXR. In vivo administration of UDCA resets bile acid synthesis and promotes a shift toward bile acids species that are GPBAR1 agonists, UDCA, TUDCA and hyodeoxycholic acid, and increases GLP1 expression in the ileum. In contrast norUDCA is poorly metabolized exerting a minimal impact on GPBAR1 signaling. Together, these data, highlight the potential role of UDCA and norUDCA in treating of NAFLD, though these beneficial effects are supported by different mechanisms.
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Affiliation(s)
- Silvia Marchianò
- University of Perugia, Department of Medicine and Surgery, Perugia, Italy
| | - Michele Biagioli
- University of Perugia, Department of Medicine and Surgery, Perugia, Italy
| | - Rosalinda Roselli
- University of Naples Federico II, Department of Pharmacy, Naples, Italy
| | - Angela Zampella
- University of Naples Federico II, Department of Pharmacy, Naples, Italy
| | | | - Martina Bordoni
- University of Perugia, Department of Medicine and Surgery, Perugia, Italy
| | - Rachele Bellini
- University of Perugia, Department of Medicine and Surgery, Perugia, Italy
| | - Ginevra Urbani
- University of Perugia, Department of Medicine and Surgery, Perugia, Italy
| | - Elva Morretta
- Department of Pharmacy, University of Salerno, Italy
| | | | | | - Stefano Fiorucci
- University of Perugia, Department of Medicine and Surgery, Perugia, Italy.
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13
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Abstract
Bile acids wear many hats, including those of an emulsifier to facilitate nutrient absorption, a cholesterol metabolite, and a signaling molecule in various tissues modulating itching to metabolism and cellular functions. Bile acids are synthesized in the liver but exhibit wide-ranging effects indicating their ability to mediate organ-organ crosstalk. So, how does a steroid metabolite orchestrate such diverse functions? Despite the inherent chemical similarity, the side chain decorations alter the chemistry and biology of the different bile acid species and their preferences to bind downstream receptors distinctly. Identification of new modifications in bile acids is burgeoning, and some of it is associated with the microbiota within the intestine. Here, we provide a brief overview of the history and the various receptors that mediate bile acid signaling in addition to its crosstalk with the gut microbiota.
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Affiliation(s)
| | | | - Sayeepriyadarshini Anakk
- Correspondence: Sayeepriyadarshini Anakk, PhD, Department of Molecular & Integrative Physiology, University of Illinois at Urbana-Champaign, 506 S Mathews Ave, 453 Medical Sciences Bldg, Urbana, IL 61801, USA.
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14
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Liu Y, Xu J, Ren X, Zhang Y, Ke Z, Zhou J, Wang Y, Zhang Y, Liu Y. Cholecystectomy-induced secondary bile acids accumulation ameliorates colitis through inhibiting monocyte/macrophage recruitment. Gut Microbes 2022; 14:2107387. [PMID: 36050867 PMCID: PMC9450905 DOI: 10.1080/19490976.2022.2107387] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Although post-cholecystectomy (PC) patients usually have gastrointestinal complications and a higher risk of colorectal cancer, previous studies undetected a heightened risk of inflammatory bowel disease. Thus, we tried to investigate cholecystectomy's impact and pathophysiological mechanism on murine colitis models and clarify the association among fecal bile acids (BAs), mucosal bacterial microbiota, and immune cells in the PC patients. One month or three months after cholecystectomy, mice have induced colitis and tested BAs and fecal microbiota analysis. Next, mice were treated with various cholecystectomy-accumulated bile acids in drinking water for three months before inducing colitis. All 14 paired PC patients and healthy subjects were enrolled for BAs and mucosal microbiota analysis. Cholecystectomy ameliorated DSS-induced murine colitis, accelerated mucosal repair, and induced a significant shifting of fecal microbiota and BAs profiles under colitis status, which featured a higher relative abundance of species involved in BAs metabolism and increased secondary BAs concentrations. Cholecystectomy-associated secondary BAs (LCA, DCA, and HDCA) also ameliorated DSS-induced colitis and accelerated mucosal repair in mice. Cholecystectomy and specific secondary BAs treatments inhibited monocytes/macrophages recruitment in colitis mice. In vitro, cholecystectomy-associated secondary BAs also downregulated monocytes chemokines in the THP-1 derived macrophages through activation of the LXRα-linked signaling pathway. The alterations of mucosal microbiota and fecal BAs profiles were found in the PC patients, characterized as increased species with potential immuno-modulating effects and secondary BAs, which were negatively associated with peripheral monocytes levels. Cholecystectomy-induced secondary bile acids accumulation ameliorated colitis through inhibiting monocyte/macrophage recruitment, which might be mediated by the LXRα-related signaling pathway. Cholecystectomy, after 3 months follow-up, has an immune-regulatory role in murine colitis, preliminarily explaining that no increased risk of IBD had been reported in the PC patients, which still warrants further studies.
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Affiliation(s)
- Yun Liu
- Department of Gastroenterology, Peking University People’s Hospital, Beijing, China,Clinical Center of Immune-Mediated Digestive Diseases, Peking University People’s Hospital, Beijing, China
| | - Jun Xu
- Department of Gastroenterology, Peking University People’s Hospital, Beijing, China,Clinical Center of Immune-Mediated Digestive Diseases, Peking University People’s Hospital, Beijing, China
| | - Xinhua Ren
- Center of Liver Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Yu Zhang
- Department of Gastroenterology, Peking University People’s Hospital, Beijing, China,Clinical Center of Immune-Mediated Digestive Diseases, Peking University People’s Hospital, Beijing, China
| | - Ziliang Ke
- Department of Gastroenterology, Peking University People’s Hospital, Beijing, China,Clinical Center of Immune-Mediated Digestive Diseases, Peking University People’s Hospital, Beijing, China
| | - Jianhua Zhou
- Institute of Clinical Molecular Biology & Central Laboratory, Peking University People’s Hospital, Beijing, China
| | - Yang Wang
- Department of Gastroenterology, Peking University People’s Hospital, Beijing, China,Clinical Center of Immune-Mediated Digestive Diseases, Peking University People’s Hospital, Beijing, China
| | - Yifan Zhang
- Department of Gastroenterology, Peking University People’s Hospital, Beijing, China,Clinical Center of Immune-Mediated Digestive Diseases, Peking University People’s Hospital, Beijing, China
| | - Yulan Liu
- Department of Gastroenterology, Peking University People’s Hospital, Beijing, China,Clinical Center of Immune-Mediated Digestive Diseases, Peking University People’s Hospital, Beijing, China,CONTACT Yulan Liu Department of Gastroenterology, Peking University People’s Hospital, Beijing, China
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15
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Tauroursodeoxycholic Acid Reduces Neuroinflammation but Does Not Support Long Term Functional Recovery of Rats with Spinal Cord Injury. Biomedicines 2022; 10:biomedicines10071501. [PMID: 35884805 PMCID: PMC9313003 DOI: 10.3390/biomedicines10071501] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/18/2022] [Accepted: 06/23/2022] [Indexed: 11/17/2022] Open
Abstract
The bile acid tauroursodeoxycholic acid (TUDCA) reduces cell death under oxidative stress and inflammation. Implants of bone marrow-derived stromal cells (bmSC) are currently under investigation in clinical trials of spinal cord injury (SCI). Since cell death of injected bmSC limits the efficacy of this treatment, the cytoprotective effect of TUDCA may enhance its benefit. We therefore studied the therapeutic effect of TUDCA and its use as a combinatorial treatment with human bmSC in a rat model of SCI. A spinal cord contusion injury was induced at thoracic level T9. Treatment consisted of i.p. injections of TUDCA alone or in combination with one injection of human bmSC into the cisterna magna. The recovery of motor functions was assessed during a surveillance period of six weeks. Biochemical and histological analysis of spinal cord tissue confirmed the anti-inflammatory activity of TUDCA. Treatment improved the recovery of autonomic bladder control and had a positive effect on motor functions in the subacute phase, however, benefits were only transient, such that no significant differences between vehicle and TUDCA-treated animals were observed 1–6 weeks after the lesion. Combinatorial treatment with TUDCA and bmSC failed to have an additional effect compared to treatment with bmSC only. Our data do not support the use of TUDCA as a treatment of SCI.
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16
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Fiorucci S, Rapacciuolo P, Fiorillo B, Roselli R, Marchianò S, Di Giorgio C, Bordoni M, Bellini R, Cassiano C, Conflitti P, Catalanotti B, Limongelli V, Sepe V, Biagioli M, Zampella A. Discovery of a Potent and Orally Active Dual GPBAR1/CysLT 1R Modulator for the Treatment of Metabolic Fatty Liver Disease. Front Pharmacol 2022; 13:858137. [PMID: 35559268 PMCID: PMC9085577 DOI: 10.3389/fphar.2022.858137] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 03/11/2022] [Indexed: 12/04/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH) are two highly prevalent human diseases caused by excessive fat deposition in the liver. Although multiple approaches have been suggested, NAFLD/NASH remains an unmet clinical need. Here, we report the discovery of a novel class of hybrid molecules designed to function as cysteinyl leukotriene receptor 1 (CysLT1R) antagonists and G protein bile acid receptor 1 (GPBAR1/TGR5) agonists for the treatment of NAFLD/NASH. The most potent of these compounds generated by harnessing the scaffold of the previously described CystLT1R antagonists showed efficacy in reversing liver histopathology features in a preclinical model of NASH, reshaping the liver transcriptome and the lipid and energy metabolism in the liver and adipose tissues. In summary, the present study described a novel orally active dual CysLT1R antagonist/GPBAR1 agonist that effectively protects against the development of NAFLD/NASH, showing promise for further development.
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Affiliation(s)
- Stefano Fiorucci
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | | | - Bianca Fiorillo
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy
| | - Rosalinda Roselli
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy
| | - Silvia Marchianò
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | | | - Martina Bordoni
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Rachele Bellini
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Chiara Cassiano
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy
| | - Paolo Conflitti
- Faculty of Biomedical Sciences, Euler Institute, Università della Svizzera italiana (USI), Lugano, Switzerland
| | - Bruno Catalanotti
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy
| | - Vittorio Limongelli
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy.,Faculty of Biomedical Sciences, Euler Institute, Università della Svizzera italiana (USI), Lugano, Switzerland
| | - Valentina Sepe
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy
| | - Michele Biagioli
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Angela Zampella
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy
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17
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Režen T, Rozman D, Kovács T, Kovács P, Sipos A, Bai P, Mikó E. The role of bile acids in carcinogenesis. Cell Mol Life Sci 2022; 79:243. [PMID: 35429253 PMCID: PMC9013344 DOI: 10.1007/s00018-022-04278-2] [Citation(s) in RCA: 92] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/03/2022] [Accepted: 03/28/2022] [Indexed: 12/17/2022]
Abstract
AbstractBile acids are soluble derivatives of cholesterol produced in the liver that subsequently undergo bacterial transformation yielding a diverse array of metabolites. The bulk of bile acid synthesis takes place in the liver yielding primary bile acids; however, other tissues have also the capacity to generate bile acids (e.g. ovaries). Hepatic bile acids are then transported to bile and are subsequently released into the intestines. In the large intestine, a fraction of primary bile acids is converted to secondary bile acids by gut bacteria. The majority of the intestinal bile acids undergo reuptake and return to the liver. A small fraction of secondary and primary bile acids remains in the circulation and exert receptor-mediated and pure chemical effects (e.g. acidic bile in oesophageal cancer) on cancer cells. In this review, we assess how changes to bile acid biosynthesis, bile acid flux and local bile acid concentration modulate the behavior of different cancers. Here, we present in-depth the involvement of bile acids in oesophageal, gastric, hepatocellular, pancreatic, colorectal, breast, prostate, ovarian cancer. Previous studies often used bile acids in supraphysiological concentration, sometimes in concentrations 1000 times higher than the highest reported tissue or serum concentrations likely eliciting unspecific effects, a practice that we advocate against in this review. Furthermore, we show that, although bile acids were classically considered as pro-carcinogenic agents (e.g. oesophageal cancer), the dogma that switch, as lower concentrations of bile acids that correspond to their serum or tissue reference concentration possess anticancer activity in a subset of cancers. Differences in the response of cancers to bile acids lie in the differential expression of bile acid receptors between cancers (e.g. FXR vs. TGR5). UDCA, a bile acid that is sold as a generic medication against cholestasis or biliary surge, and its conjugates were identified with almost purely anticancer features suggesting a possibility for drug repurposing. Taken together, bile acids were considered as tumor inducers or tumor promoter molecules; nevertheless, in certain cancers, like breast cancer, bile acids in their reference concentrations may act as tumor suppressors suggesting a Janus-faced nature of bile acids in carcinogenesis.
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Affiliation(s)
- Tadeja Režen
- Centre for Functional Genomics and Bio-Chips, Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Damjana Rozman
- Centre for Functional Genomics and Bio-Chips, Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Tünde Kovács
- Department of Medical Chemistry, University of Debrecen, Egyetem tér 1., Debrecen, 4032, Hungary
- MTA-DE Lendület Laboratory of Cellular Metabolism, Debrecen, 4032, Hungary
| | - Patrik Kovács
- Department of Medical Chemistry, University of Debrecen, Egyetem tér 1., Debrecen, 4032, Hungary
| | - Adrienn Sipos
- Department of Medical Chemistry, University of Debrecen, Egyetem tér 1., Debrecen, 4032, Hungary
| | - Péter Bai
- Department of Medical Chemistry, University of Debrecen, Egyetem tér 1., Debrecen, 4032, Hungary
- MTA-DE Lendület Laboratory of Cellular Metabolism, Debrecen, 4032, Hungary
- Research Center for Molecular Medicine, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Edit Mikó
- Department of Medical Chemistry, University of Debrecen, Egyetem tér 1., Debrecen, 4032, Hungary.
- MTA-DE Lendület Laboratory of Cellular Metabolism, Debrecen, 4032, Hungary.
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18
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Sangaraju D, Katavolos P, Liang X, Chou C, Zabka TS, Dean B, Maher J. Establishment of baseline profiles of 50 bile acids in preclinical toxicity species: A comprehensive assessment of translational differences and study design considerations for biomarker development. Toxicol Appl Pharmacol 2022; 443:116008. [DOI: 10.1016/j.taap.2022.116008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/27/2022] [Accepted: 03/28/2022] [Indexed: 11/29/2022]
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19
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New Kids on the Block: Bile Salt Conjugates of Microbial Origin. Metabolites 2022; 12:metabo12020176. [PMID: 35208250 PMCID: PMC8876647 DOI: 10.3390/metabo12020176] [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: 12/23/2021] [Revised: 02/02/2022] [Accepted: 02/09/2022] [Indexed: 02/04/2023] Open
Abstract
Biotransformation of host bile salts by gut microbes results in generation of secondary bile salt species that have biological and physicochemical properties that are distinct from the parent compounds. There is increased awareness that a bile salt–gut microbiome axis modulates various processes in the host, including innate and adaptive immunity, by interaction of microbial bile salt metabolites with host receptors. Omics and targeted approaches have vastly expanded the number and repertoire of secondary bile salt species. A new class of microbial bile salt metabolites was reported in 2020 and comprises bile salts that are conjugated by microbial enzymes. Amino acids other than those employed by host enzymes (glycine and taurine) are used as substrates in the formation of these microbial bile salt conjugates (MBSCs). Leucocholic acid, phenylalanocholic acid and tyrosocholic acid were the first MBSCs identified in mice and humans. The number of distinct MBSCs is now approaching 50, with variation both at the level of bile salt and amino acid employed for conjugation. Evidence is emerging that MBSC generation is a common feature of human gut bacteria, and initial links with disease states have been reported. In this review, we discuss this intriguing new class of secondary bile salts, with yet enigmatic function.
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20
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Kiriyama Y, Nochi H. Physiological Role of Bile Acids Modified by the Gut Microbiome. Microorganisms 2021; 10:68. [PMID: 35056517 PMCID: PMC8777643 DOI: 10.3390/microorganisms10010068] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 12/21/2021] [Accepted: 12/29/2021] [Indexed: 12/13/2022] Open
Abstract
Bile acids (BAs) are produced from cholesterol in the liver and are termed primary BAs. Primary BAs are conjugated with glycine and taurine in the liver and then released into the intestine via the gallbladder. After the deconjugation of glycine or taurine by the gut microbiome, primary BAs are converted into secondary BAs by the gut microbiome through modifications such as dehydroxylation, oxidation, and epimerization. Most BAs in the intestine are reabsorbed and transported to the liver, where both primary and secondary BAs are conjugated with glycine or taurine and rereleased into the intestine. Thus, unconjugated primary Bas, as well as conjugated and unconjugated secondary BAs, have been modified by the gut microbiome. Some of the BAs reabsorbed from the intestine spill into the systemic circulation, where they bind to a variety of nuclear and cell-surface receptors in tissues, whereas some of the BAs are not reabsorbed and bind to receptors in the terminal ileum. BAs play crucial roles in the physiological regulation of various tissues. Furthermore, various factors, such as diet, age, and antibiotics influence BA composition. Here, we review recent findings regarding the physiological roles of BAs modified by the gut microbiome in the metabolic, immune, and nervous systems.
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Affiliation(s)
- Yoshimitsu Kiriyama
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, Shido 1314-1, Sanuki 769-2193, Kagawa, Japan;
- Laboratory of Neuroendocrinology, Institute of Neuroscience, Tokushima Bunri University, Shido 1314-1, Sanuki 769-2193, Kagawa, Japan
| | - Hiromi Nochi
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, Shido 1314-1, Sanuki 769-2193, Kagawa, Japan;
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21
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Fiorillo B, Sepe V, Conflitti P, Roselli R, Biagioli M, Marchianò S, De Luca P, Baronissi G, Rapacciuolo P, Cassiano C, Catalanotti B, Zampella A, Limongelli V, Fiorucci S. Structural Basis for Developing Multitarget Compounds Acting on Cysteinyl Leukotriene Receptor 1 and G-Protein-Coupled Bile Acid Receptor 1. J Med Chem 2021; 64:16512-16529. [PMID: 34767347 DOI: 10.1021/acs.jmedchem.1c01078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
G-protein-coupled receptors (GPCRs) are the molecular target of 40% of marketed drugs and the most investigated structures to develop novel therapeutics. Different members of the GPCRs superfamily can modulate the same cellular process acting on diverse pathways, thus representing an attractive opportunity to achieve multitarget drugs with synergic pharmacological effects. Here, we present a series of compounds with dual activity toward cysteinyl leukotriene receptor 1 (CysLT1R) and G-protein-coupled bile acid receptor 1 (GPBAR1). They are derivatives of REV5901─the first reported dual compound─with therapeutic potential in the treatment of colitis and other inflammatory processes. We report the binding mode of the most active compounds in the two GPCRs, revealing unprecedented structural basis for future drug design studies, including the presence of a polar group opportunely spaced from an aromatic ring in the ligand to interact with Arg792.60 of CysLT1R and achieve dual activity.
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Affiliation(s)
- Bianca Fiorillo
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano, 49, I-80131 Naples, Italy
| | - Valentina Sepe
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano, 49, I-80131 Naples, Italy
| | - Paolo Conflitti
- Università della Svizzera italiana (USI), Faculty of Biomedical Sciences, Euler Institute, via G. Buffi 13, CH-6900 Lugano, Switzerland
| | - Rosalinda Roselli
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano, 49, I-80131 Naples, Italy
| | - Michele Biagioli
- Department of Medicine and Surgery, University of Perugia, Piazza L. Severi 1, 06132 Perugia, Italy
| | - Silvia Marchianò
- Department of Medicine and Surgery, University of Perugia, Piazza L. Severi 1, 06132 Perugia, Italy
| | - Pasquale De Luca
- Head─Sequencing and Molecular Analyses Center, RIMAR Stazione Zoologica, Villa Comunale, 80121 Naples, Italy
| | - Giuliana Baronissi
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano, 49, I-80131 Naples, Italy
| | - Pasquale Rapacciuolo
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano, 49, I-80131 Naples, Italy
| | - Chiara Cassiano
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano, 49, I-80131 Naples, Italy
| | - Bruno Catalanotti
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano, 49, I-80131 Naples, Italy
| | - Angela Zampella
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano, 49, I-80131 Naples, Italy
| | - Vittorio Limongelli
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano, 49, I-80131 Naples, Italy.,Università della Svizzera italiana (USI), Faculty of Biomedical Sciences, Euler Institute, via G. Buffi 13, CH-6900 Lugano, Switzerland
| | - Stefano Fiorucci
- Department of Medicine and Surgery, University of Perugia, Piazza L. Severi 1, 06132 Perugia, Italy
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Wu S, Romero-Ramírez L, Mey J. Taurolithocholic acid but not tauroursodeoxycholic acid rescues phagocytosis activity of bone marrow-derived macrophages under inflammatory stress. J Cell Physiol 2021; 237:1455-1470. [PMID: 34705285 PMCID: PMC9297999 DOI: 10.1002/jcp.30619] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 09/10/2021] [Accepted: 10/05/2021] [Indexed: 12/28/2022]
Abstract
Spinal cord injury (SCI) causes cell death and consequently the breakdown of axons and myelin. The accumulation of myelin debris at the lesion site induces inflammation and blocks axonal regeneration. Hematogenous macrophages contribute to the removal of myelin debris. In this study, we asked how the inflammatory state of macrophages affects their ability to phagocytose myelin. Bone marrow‐derived macrophages (BMDM) and Raw264.7 cells were stimulated with lipopolysaccharides (LPS) or interferon gamma (IFNγ), which induce inflammatory stress, and the endocytosis of myelin was examined. We found that activation of the TLR4‐NFκB pathway reduced myelin uptake by BMDM, while IFNγ‐Jak/STAT1 signaling did not. Since bile acids regulate lipid metabolism and in some cases reduce inflammation, our second objective was to investigate whether myelin clearance could be improved with taurolithocholic acid (TLCA), tauroursodeoxycholic acid or hyodeoxycholic acid. In BMDM only TLCA rescued myelin phagocytosis, when this activity was suppressed by LPS. Inhibition of protein kinase A blocked the effect of TLCA, while an agonist of the farnesoid X receptor did not rescue phagocytosis, implicating TGR5‐PKA signaling in the effect of TLCA. To shed light on the mechanism, we measured whether TLCA affected the expression of CD36, triggering receptor on myeloid cells‐2 (TREM2), and Gas6, which are known to be involved in phagocytosis and affected by inflammatory stimuli. Concomitant with an increase in expression of tumour necrosis factor alpha, LPS reduced expression of TREM2 and Gas6 in BMDM, and TLCA significantly diminished this downregulation. These findings suggest that activation of bile acid receptors may be used to improve myelin clearance in neuropathologies.
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Affiliation(s)
- Siyu Wu
- Unidad de Investigación, Laboratorio LRNI, Hospital Nacional de Parapléjicos, Toledo, Spain.,School of Mental Health and Neuroscience and EURON Graduate School of Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Lorenzo Romero-Ramírez
- Unidad de Investigación, Laboratorio LRNI, Hospital Nacional de Parapléjicos, Toledo, Spain
| | - Jörg Mey
- Unidad de Investigación, Laboratorio LRNI, Hospital Nacional de Parapléjicos, Toledo, Spain.,School of Mental Health and Neuroscience and EURON Graduate School of Neuroscience, Maastricht University, Maastricht, The Netherlands
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23
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Bile Acids Activated Receptors in Inflammatory Bowel Disease. Cells 2021; 10:cells10061281. [PMID: 34064187 PMCID: PMC8224328 DOI: 10.3390/cells10061281] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/14/2021] [Accepted: 05/20/2021] [Indexed: 12/18/2022] Open
Abstract
Once known exclusively for their role in nutrients absorption, bile acids have emerged as signaling molecules, generated from cholesterol breakdown, acting on several immune cells by activating a variety of receptors including the G protein-coupled bile acid receptor 1 (GPABR1 or TGR5), the Farnesoid-X-receptor (FXR) and, as recently discovered, the retinoid-related orphan receptors (ROR)γt. GPBAR1, FXR, and RORγt are highly expressed in cells of the innate and adaptive immune system (i.e., dendritic cells (DCs), macrophages, innate lymphoid 3 cells (ILC3s), and T helper 17 (Th17) lymphocytes) and plays an important role in regulating intestinal and liver immunity, highlighting a role for various bile acid species in regulating immune responses to intestinal microbial antigens. While primary bile acids are generated from the cholesterol breakdown secondary bile acids, the GPBAR1 ligands, and oxo-bile acids derivatives, the RORγt ligands, are generated by the intestinal microbiota, highlighting the potential of these bile acids in mediating the chemical communication between the intestinal microbiota and the host. Changes in intestinal microbiota, dysbiosis, alter the composition of the bile acid pool, promoting the activation of the immune system and development of chronic inflammation. In this review, we focus on the molecular mechanisms by which an altered bile acid signaling promotes intestinal inflammation.
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24
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Fiorucci S, Distrutti E, Carino A, Zampella A, Biagioli M. Bile acids and their receptors in metabolic disorders. Prog Lipid Res 2021; 82:101094. [PMID: 33636214 DOI: 10.1016/j.plipres.2021.101094] [Citation(s) in RCA: 110] [Impact Index Per Article: 36.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 02/03/2021] [Accepted: 02/12/2021] [Indexed: 02/08/2023]
Abstract
Bile acids are a large family of atypical steroids which exert their functions by binding to a family of ubiquitous cell membrane and nuclear receptors. There are two main bile acid activated receptors, FXR and GPBAR1, that are exclusively activated by bile acids, while other receptors CAR, LXRs, PXR, RORγT, S1PR2and VDR are activated by bile acids in addition to other more selective endogenous ligands. In the intestine, activation of FXR and GPBAR1 promotes the release of FGF15/19 and GLP1 which integrate their signaling with direct effects exerted by theother receptors in target tissues. This network is tuned in a time ordered manner by circadian rhythm and is critical for the regulation of metabolic process including autophagy, fast-to-feed transition, lipid and glucose metabolism, energy balance and immune responses. In the last decade FXR ligands have entered clinical trials but development of systemic FXR agonists has been proven challenging because their side effects including increased levels of cholesterol and Low Density Lipoproteins cholesterol (LDL-c) and reduced High-Density Lipoprotein cholesterol (HDL-c). In addition, pruritus has emerged as a common, dose related, side effect of FXR ligands. Intestinal-restricted FXR and GPBAR1 agonists and dual FXR/GPBAR1 agonists have been developed. Here we review the last decade in bile acids physiology and pharmacology.
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Affiliation(s)
- Stefano Fiorucci
- Dipartimento di Medicina e Chirurgia, Università di Perugia, Perugia, Italy.
| | - Eleonora Distrutti
- SC di Gastroenterologia ed Epatologia, Azienda Ospedaliera di Perugia, Perugia, Italy
| | - Adriana Carino
- Dipartimento di Medicina e Chirurgia, Università di Perugia, Perugia, Italy
| | - Angela Zampella
- Department of Pharmacy, University of Napoli, Federico II, Napoli, Italy
| | - Michele Biagioli
- Dipartimento di Medicina e Chirurgia, Università di Perugia, Perugia, Italy
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25
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Abstract
Bile acids are a group of chemically different steroids generated at the host/microbial interface. Indeed, while primary bile acids are the end-product of cholesterol breakdown in the host liver, secondary bile acids are the products of microbial metabolism. Primary and secondary bile acids along with their oxo derivatives have been identified as signaling molecules acting on a family of cell membrane and nuclear receptors collectively known as "bile acid-activated receptors." Members of this group of receptors are highly expressed throughout the gastrointestinal tract and mediate the bilateral communications of the intestinal microbiota with the host immune system. The expression and function of bile acid-activated receptors FXR, GPBAR1, PXR, VDR, and RORγt are highly dependent on the structure of the intestinal microbiota and negatively regulated by intestinal inflammation. Studies from gene ablated mice have demonstrated that FXR and GPBAR1 are essential to maintain a tolerogenic phenotype in the intestine, and their ablation promotes the polarization of intestinal T cells and macrophages toward a pro-inflammatory phenotype. RORγt inhibition by oxo-bile acids is essential to constrain Th17 polarization of intestinal lymphocytes. Gene-wide association studies and functional characterizations suggest a potential role for impaired bile acid signaling in development inflammatory bowel diseases (IBD). In this review, we will focus on how bile acids and their receptors mediate communications of intestinal microbiota with the intestinal immune system, describing dynamic changes of bile acid metabolism in IBD and the potential therapeutic application of targeting bile acid signaling in these disorders.
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26
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Fiorucci S, Baldoni M, Ricci P, Zampella A, Distrutti E, Biagioli M. Bile acid-activated receptors and the regulation of macrophages function in metabolic disorders. Curr Opin Pharmacol 2020; 53:45-54. [DOI: 10.1016/j.coph.2020.04.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/14/2020] [Accepted: 04/22/2020] [Indexed: 12/12/2022]
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27
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Marino SD, Finamore C, Biagioli M, Carino A, Marchianò S, Roselli R, Giorgio CD, Bordoni M, Di Leva FS, Novellino E, Cassiano C, Limongelli V, Zampella A, Festa C, Fiorucci S. GPBAR1 Activation by C6-Substituted Hyodeoxycholane Analogues Protect against Colitis. ACS Med Chem Lett 2020; 11:818-824. [PMID: 32435390 DOI: 10.1021/acsmedchemlett.9b00636] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 03/02/2020] [Indexed: 12/14/2022] Open
Abstract
GPBAR1 agonists have been identified as potential leads for the treatment of diseases related to colon inflammation such as Crohn's and ulcerative colitis. In this paper, we report the discovery of a small library of hyodeoxycholane analogues, decorated at C-6 with different substituents, as potent and selective GPBAR1 agonists. In vitro pharmacological assays showed that compound 6 selectively activates GPBAR1 (EC50 = 0.3 μM) and reduces the production of pro-inflammatory cytokines (IL-1β, IL-6, and TNF-α) in THP1 cells. The binding mode of compound 6 in GPBAR1 was elucidated by docking calculations. Moreover, compound 6 protects against TNBS-induced colitis in Gpbar1+/+ rodent model, representing an intriguing lead for the treatment of these inflammatory disorders.
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Affiliation(s)
- Simona De Marino
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Claudia Finamore
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Michele Biagioli
- Department of Surgery and Biomedical Sciences, Nuova Facoltà di Medicina, Perugia CH-6900, Italy
| | - Adriana Carino
- Department of Surgery and Biomedical Sciences, Nuova Facoltà di Medicina, Perugia CH-6900, Italy
| | - Silvia Marchianò
- Department of Surgery and Biomedical Sciences, Nuova Facoltà di Medicina, Perugia CH-6900, Italy
| | - Rosalinda Roselli
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Cristina Di Giorgio
- Department of Surgery and Biomedical Sciences, Nuova Facoltà di Medicina, Perugia CH-6900, Italy
| | - Martina Bordoni
- Department of Surgery and Biomedical Sciences, Nuova Facoltà di Medicina, Perugia CH-6900, Italy
| | - Francesco Saverio Di Leva
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Ettore Novellino
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Chiara Cassiano
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Vittorio Limongelli
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
- Faculty of Biomedical Sciences, Institute of Computational Science, Center for Computational Medicine in Cardiology, Università della Svizzera italiana (USI), Via G. Buffi 13, CH-6900 Lugano, Switzerland
| | - Angela Zampella
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Carmen Festa
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Stefano Fiorucci
- Department of Surgery and Biomedical Sciences, Nuova Facoltà di Medicina, Perugia CH-6900, Italy
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28
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Identification of cysteinyl-leukotriene-receptor 1 antagonists as ligands for the bile acid receptor GPBAR1. Biochem Pharmacol 2020; 177:113987. [PMID: 32330496 DOI: 10.1016/j.bcp.2020.113987] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 04/17/2020] [Indexed: 01/06/2023]
Abstract
The cysteinyl leukotrienes (CysLTs), i.e. LTC4, LTD4 and LTE4, are a family of proinflammatory agents synthesized from the arachidonic acid. In target cells, these lipid mediators bind to the cysteinyl leukotriene receptors (CysLTR), a family of seven transmembrane G-protein coupled receptors. The CysLT1R is a validated target for treatment of pulmonary diseases and several selective antagonists for this receptor, including montelukast, zafirlukast and pranlukast, have shown effective in the management of asthma. Nevertheless, others CysLT1R antagonists, such as the alpha-pentyl-3-[2-quinolinylmethoxy] benzyl alcohol (REV5901), have been extensively characterized without reaching sufficient priority for clinical development. Since drug reposition is an efficient approach for maximizing investment in drug discovery, we have investigated whether CysLT1R antagonists might exert off-target effects. In the report we demonstrate that REV5901 interacts with GPBAR1, a well characterized cell membrane receptor for secondary bile acids. REV5901 transactivates GPBAR1 in GPBAR1-transfected cells with an EC50 of 2.5 µM and accommodates the GPBAR1 binding site as shown by in silico analysis. Exposure of macrophages to REV5901 abrogates the inflammatory response elicited by bacterial endotoxin in a GPBAR1-dependent manner. In vivo, in contrast to montelukast, REV5901 attenuates inflammation and immune dysfunction in rodent models of colitis. The beneficial effects exerted by REV5901 in these models were abrogated by GPBAR1 gene ablation, confirming that REV5901, a shelved CysLT1R antagonist, is a GPBAR1 ligand. These data ground the basis for the development of novel hybrid ligands designed for simultaneous modulation of CysTL1R and GPBAR1.
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29
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The Biosynthesis, Signaling, and Neurological Functions of Bile Acids. Biomolecules 2019; 9:biom9060232. [PMID: 31208099 PMCID: PMC6628048 DOI: 10.3390/biom9060232] [Citation(s) in RCA: 108] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 06/13/2019] [Accepted: 06/14/2019] [Indexed: 12/13/2022] Open
Abstract
Bile acids (BA) are amphipathic steroid acids synthesized from cholesterol in the liver. They act as detergents to expedite the digestion and absorption of dietary lipids and lipophilic vitamins. BA are also considered to be signaling molecules, being ligands of nuclear and cell-surface receptors, including farnesoid X receptor and Takeda G-protein receptor 5. Moreover, BA also activate ion channels, including the bile acid-sensitive ion channel and epithelial Na+ channel. BA regulate glucose and lipid metabolism by activating these receptors in peripheral tissues, such as the liver and brown and white adipose tissue. Recently, 20 different BA have been identified in the central nervous system. Furthermore, BA affect the function of neurotransmitter receptors, such as the muscarinic acetylcholine receptor and γ-aminobutyric acid receptor. BA are also known to be protective against neurodegeneration. Here, we review recent findings regarding the biosynthesis, signaling, and neurological functions of BA.
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30
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Discovery of ((1,2,4-oxadiazol-5-yl)pyrrolidin-3-yl)ureidyl derivatives as selective non-steroidal agonists of the G-protein coupled bile acid receptor-1. Sci Rep 2019; 9:2504. [PMID: 30792450 PMCID: PMC6385358 DOI: 10.1038/s41598-019-38840-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 01/08/2019] [Indexed: 12/29/2022] Open
Abstract
The G-protein bile acid receptor 1 (GPBAR1) has emerged in the last decade as prominent target for the treatment of metabolic and inflammatory diseases including type 2 diabetes, obesity, and non-alcoholic steatohepatitis. To date numerous bile acid derivatives have been identified as GPBAR1 agonists, however their clinical application is hampered by the lack of selectivity toward the other bile acid receptors. Therefore, non-steroidal GPBAR1 ligands able to selectively activate the receptor are urgently needed. With this aim, we here designed, synthesized and biologically evaluated ((1,2,4-oxadiazol-5-yl)pyrrolidin-3-yl) urea derivatives as novel potent GPBAR1 agonists. Particularly, compounds 9 and 10 induce the mRNA expression of the GPBAR1 target gene pro-glucagon and show high selectivity over the other bile acid receptors FXR, LXRα, LXRβ and PXR, and the related receptors PPARα and PPARγ. Computational studies elucidated the binding mode of 10 to GPBAR1, providing important structural insights for the design of non-steroidal GPBAR1 agonists. The pharmacokinetic properties of 9 and 10 suggest that the ((1,2,4-oxadiazol-5-yl)pyrrolidin-3-yl)ureydil scaffold might be exploited to achieve effective drug candidates to treat GPBAR1 related disorders.
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31
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Benítez-Santana T, Hugo SE, Schlegel A. Role of Intestinal LXRα in Regulating Post-prandial Lipid Excursion and Diet-Induced Hypercholesterolemia and Hepatic Lipid Accumulation. Front Physiol 2017; 8:280. [PMID: 28536535 PMCID: PMC5422522 DOI: 10.3389/fphys.2017.00280] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 04/18/2017] [Indexed: 12/12/2022] Open
Abstract
Post-prandial hyperlipidemia has emerged as a cardiovascular risk factor with limited therapeutic options. The Liver X receptors (Lxrs) are nuclear hormone receptors that regulate cholesterol elimination. Knowledge of their role in regulating the absorption and handling of dietary fats is incomplete. The purpose of this study was to determine the role of intestinal Lxrα in post-prandial intestinal lipid transport. Using Lxrα knockout (nr1h3−/−) and intestine-limited Lxrα over-expressing [Tg(fabp2a:EGFP-nr1h3)] zebrafish strains, we measured post-prandial lipid excursion with live imaging in larvae and physiological methods in adults. We also conducted a long-term high-cholesterol dietary challenge in adults to examine the chronic effect of modulating nr1h3 gene dose on the development of hypercholesterolemia and hepatic lipid accumulation. Over-expression of Lxrα in the intestine delays the transport of ingested lipids in larvae, while deletion of Lxrα increases the rate of lipid transport. Pre-treating wildtype larvae with the liver-sparing Lxr agonist hyodeoxycholic acid also delayed the rate of intestinal lipid transport in larvae. In adult males, deletion of Lxrα accelerates intestinal transport of ingested lipids. Adult females showed higher plasma Lipoprotein lipase (Lpl) activity compared to males, and lower post-gavage blood triacylglycerol (TAG) excursion. Despite the sexually dimorphic effect on acute intestinal lipid handling, Tg(fabp2a:EGFP-nr1h3) adults of both sexes are protected from high cholesterol diet (HCD)-induced hepatic lipid accumulation, while nr1h3−/− mutants are sensitive to the effects of HCD challenge. These data indicate that intestinal Lxr activity dampens the pace of intestinal lipid transport cell-autonomously. Selective activation of intestinal Lxrα holds therapeutic promise.
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Affiliation(s)
- Tibiábin Benítez-Santana
- University of Utah Molecular Medicine Program, School of Medicine, University of UtahSalt Lake City, UT, USA.,Division of Endocrinology, Metabolism and Diabetes, Department of Internal Medicine, School of Medicine, University of UtahSalt Lake City, UT, USA
| | - Sarah E Hugo
- University of Utah Molecular Medicine Program, School of Medicine, University of UtahSalt Lake City, UT, USA.,Division of Endocrinology, Metabolism and Diabetes, Department of Internal Medicine, School of Medicine, University of UtahSalt Lake City, UT, USA
| | - Amnon Schlegel
- University of Utah Molecular Medicine Program, School of Medicine, University of UtahSalt Lake City, UT, USA.,Division of Endocrinology, Metabolism and Diabetes, Department of Internal Medicine, School of Medicine, University of UtahSalt Lake City, UT, USA.,Department of Biochemistry, School of Medicine, University of UtahSalt Lake City, UT, USA.,Department of Nutrition and Integrative Physiology, College of Health, University of UtahSalt Lake City, UT, USA
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32
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De Marino S, Carino A, Masullo D, Finamore C, Sepe V, Marchianò S, Di Leva FS, Limongelli V, Fiorucci S, Zampella A. Epoxide functionalization on cholane side chains in the identification of G-protein coupled bile acid receptor (GPBAR1) selective agonists. RSC Adv 2017. [DOI: 10.1039/c7ra04922f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Decoration of the bile acid side chain with an epoxide ring afforded potent and selective GPBAR1 agonists.
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Affiliation(s)
- Simona De Marino
- Department of Pharmacy
- University of Naples “Federico II”
- Naples
- Italy
| | - Adriana Carino
- Department of Surgery and Biomedical Sciences
- Nuova Facoltà di Medicina
- Perugia
- Italy
| | - Dario Masullo
- Department of Pharmacy
- University of Naples “Federico II”
- Naples
- Italy
| | - Claudia Finamore
- Department of Pharmacy
- University of Naples “Federico II”
- Naples
- Italy
| | - Valentina Sepe
- Department of Pharmacy
- University of Naples “Federico II”
- Naples
- Italy
| | - Silvia Marchianò
- Department of Surgery and Biomedical Sciences
- Nuova Facoltà di Medicina
- Perugia
- Italy
| | | | - Vittorio Limongelli
- Department of Pharmacy
- University of Naples “Federico II”
- Naples
- Italy
- Università della Svizzera Italiana (USI)
| | - Stefano Fiorucci
- Department of Surgery and Biomedical Sciences
- Nuova Facoltà di Medicina
- Perugia
- Italy
| | - Angela Zampella
- Department of Pharmacy
- University of Naples “Federico II”
- Naples
- Italy
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