101
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Short chain fatty acid, acetate ameliorates sepsis-induced acute kidney injury by inhibition of NADPH oxidase signaling in T cells. Int Immunopharmacol 2018; 58:24-31. [DOI: 10.1016/j.intimp.2018.02.023] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 02/07/2018] [Accepted: 02/28/2018] [Indexed: 12/29/2022]
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102
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Kim CH. Immune regulation by microbiome metabolites. Immunology 2018; 154:220-229. [PMID: 29569377 DOI: 10.1111/imm.12930] [Citation(s) in RCA: 194] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 02/18/2018] [Accepted: 03/06/2018] [Indexed: 02/06/2023] Open
Abstract
Commensal microbes and the host immune system have been co-evolved for mutual regulation. Microbes regulate the host immune system, in part, by producing metabolites. A mounting body of evidence indicates that diverse microbial metabolites profoundly regulate the immune system via host receptors and other target molecules. Immune cells express metabolite-specific receptors such as P2X7 , GPR41, GPR43, GPR109A, aryl hydrocarbon receptor precursor (AhR), pregnane X receptor (PXR), farnesoid X receptor (FXR), TGR5 and other molecular targets. Microbial metabolites and their receptors form an extensive array of signals to respond to changes in nutrition, health and immunological status. As a consequence, microbial metabolite signals contribute to nutrient harvest from diet, and regulate host metabolism and the immune system. Importantly, microbial metabolites bidirectionally function to promote both tolerance and immunity to effectively fight infection without developing inflammatory diseases. In pathogenic conditions, adverse effects of microbial metabolites have been observed as well. Key immune-regulatory functions of the metabolites, generated from carbohydrates, proteins and bile acids, are reviewed in this article.
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Affiliation(s)
- Chang H Kim
- Department of Pathology and Mary H. Weiser Food Allergy Center, University of Michigan Medical School, Ann Arbor, MI, USA
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103
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Hu ED, Chen DZ, Wu JL, Lu FB, Chen L, Zheng MH, Li H, Huang Y, Li J, Jin XY, Gong YW, Lin Z, Wang XD, Xu LM, Chen YP. High fiber dietary and sodium butyrate attenuate experimental autoimmune hepatitis through regulation of immune regulatory cells and intestinal barrier. Cell Immunol 2018; 328:24-32. [PMID: 29627063 DOI: 10.1016/j.cellimm.2018.03.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 03/12/2018] [Accepted: 03/12/2018] [Indexed: 12/25/2022]
Abstract
Autoimmune hepatitis (AIH) is chronic autoimmune liver disease accompanied with the imbalance of Treg/Th17 and increased intestinal permeability. We investigated the effects of a high fiber diet and sodium butyrate on the Treg/Th17 and intestinal barrier function in an experimental autoimmune hepatitis. Intraperitoneal injection of hepatic antigen (S100) was used to induce experimental autoimmune hepatitis mice model and mice were divided into normal control, S100 model control, S100 plus high fiber diet and S100 plus sodium butyrate. Serum aminotransferases and liver histology were examined. Short chain fatty acids in feces were determined by HPLC. The ratio of CD4 + C25 + Foxp3+ Treg and CD4 + IL-17 + Th17 were evaluated by flow cytometry. Tight junction proteins Zonula ocluden, Occludin and Claudin-1 were used to assess intestinal barrier function, so does Escherichia coli protein in the liver. Mice fed with either high fiber diet or sodium butyrate showed significantly lower levers of serum aminotransferases and minor liver injury compared to that of model control. Moreover, the ratio of Treg/Th17 was significantly higher in high fiber diet and sodium butyrate fed mice than that in model control. Furthermore, high fiber diet and sodium butyrate significantly increased intestinal tight junction proteins and decreased Escherichia Coli protein in the liver. In conclusion, high fiber diet and sodium butyrate can attenuate development of autoimmune hepatitis through regulation of immune regulatory cells and intestinal barrier function.
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Affiliation(s)
- En-De Hu
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical University, Wenzhou Key Laboratory of Hepatology, Wenzhou 325000, Zhejiang, China
| | - Da-Zhi Chen
- State Key Laboratory of Infectious Diseases, Medicine School of Zhejiang University, Hangzhou 310003,China
| | - Jin-Lu Wu
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical University, Wenzhou Key Laboratory of Hepatology, Wenzhou 325000, Zhejiang, China
| | - Feng-Bin Lu
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical University, Wenzhou Key Laboratory of Hepatology, Wenzhou 325000, Zhejiang, China
| | - Lu Chen
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical University, Wenzhou Key Laboratory of Hepatology, Wenzhou 325000, Zhejiang, China
| | - Ming-Hua Zheng
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical University, Wenzhou Key Laboratory of Hepatology, Wenzhou 325000, Zhejiang, China
| | - Hui Li
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical University, Wenzhou Key Laboratory of Hepatology, Wenzhou 325000, Zhejiang, China
| | - Yu Huang
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical University, Wenzhou Key Laboratory of Hepatology, Wenzhou 325000, Zhejiang, China
| | - Ji Li
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical University, Wenzhou Key Laboratory of Hepatology, Wenzhou 325000, Zhejiang, China
| | - Xiao-Ya Jin
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical University, Wenzhou Key Laboratory of Hepatology, Wenzhou 325000, Zhejiang, China
| | - Yue-Wen Gong
- College of Pharmacy, Rady Faculty of Health Sciences, University of Manitoba, Canada
| | - Zhuo Lin
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical University, Wenzhou Key Laboratory of Hepatology, Wenzhou 325000, Zhejiang, China
| | - Xiao-Dong Wang
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical University, Wenzhou Key Laboratory of Hepatology, Wenzhou 325000, Zhejiang, China
| | - Lan-Man Xu
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical University, Wenzhou Key Laboratory of Hepatology, Wenzhou 325000, Zhejiang, China.
| | - Yong-Ping Chen
- Department of Infectious Diseases, The First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical University, Wenzhou Key Laboratory of Hepatology, Wenzhou 325000, Zhejiang, China.
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104
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Abstract
Gut microbiota and its metabolites play pivotal roles in host physiology and pathology. Short-chain fatty acids (SCFAs), as a group of metabolites, exert positive regulatory effects on energy metabolism, hormone secretion, immune inflammation, hypertension, and cancer. The functions of SCFAs are related to their activation of transmembrane G protein-coupled receptors and their inhibition of histone acetylation. Though controversial, growing evidence suggests that SCFAs, which regulate inflammation, oxidative stress, and fibrosis, have been involved in kidney disease through the activation of the gut–kidney axis; however, the molecular relationship among gut microbiota–derived metabolites, signaling pathways, and kidney disease remains to be elucidated. This review will provide an overview of the physiology and functions of SCFAs in kidney disease.
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Affiliation(s)
- Lingzhi Li
- Kidney Research Institute, Department of Nephrology, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Liang Ma
- Kidney Research Institute, Department of Nephrology, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Ping Fu
- Kidney Research Institute, Department of Nephrology, West China Hospital of Sichuan University, Chengdu 610041, China
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105
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Functional heterogeneity of gut-resident regulatory T cells. Clin Transl Immunology 2017; 6:e156. [PMID: 28983404 PMCID: PMC5628268 DOI: 10.1038/cti.2017.39] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 07/26/2017] [Accepted: 07/26/2017] [Indexed: 02/07/2023] Open
Abstract
Regulatory T cells (Treg cells) have a central role in the maintenance of intestinal homeostasis by restraining inappropriate immune responses in the healthy gut. Although distinct intestinal immune cell populations have been described to exhibit regulatory activity, several genetic and functional studies provided a strong evidence for a pivotal role of forkhead box P3 (Foxp3)+CD4+ Treg cells in prevention of dysregulated mucosal immune reactions and development of chronic immunological disorders such as celiac disease, food allergies and inflammatory bowel disease. Treg cells provide an important layer of intestinal defense by suppressing immune responses against innocuous food and commensal-derived antigens. Recent functional studies suggest that Treg cells are also involved in several other processes such as controlling microbial diversity in the gut, immunoglobulin A selection and supporting tissue repair in response to intestinal tissue damage. A better understanding of the functional heterogeneity as well as of the molecular signals, which regulate distinct intestinal Treg cell subsets, will encourage strategies aimed at transplanting the optimal Treg cell subset for cellular therapy in humans.
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106
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Short chain fatty acids ameliorate immune-mediated uveitis partially by altering migration of lymphocytes from the intestine. Sci Rep 2017; 7:11745. [PMID: 28924192 PMCID: PMC5603543 DOI: 10.1038/s41598-017-12163-3] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 09/04/2017] [Indexed: 02/07/2023] Open
Abstract
Short chain fatty acids (SCFA) are metabolites of intestinal bacteria resulting from fermentation of dietary fiber. SCFA are protective in various animal models of inflammatory disease. We investigated the effects of exogenous administration of SFCAs, particularly propionate, on uveitis using an inducible model of experimental autoimmune uveitis (EAU). Oral SCFA administration attenuated uveitis severity in a mouse strain-dependent manner through regulatory T cell induction among lymphocytes in the intestinal lamina propria (LPL) and cervical lymph nodes (CLN). SCFA also suppressed effector T cell induction in the CLN and mesenteric lymph nodes (MLN). Alterations in intestinal morphology and gene expression demonstrated in the EAU model prior to the onset of uveitis were blunted by oral SCFA administration. Using a Kaede transgenic mouse, we demonstrated enhanced leukocyte trafficking between the intestine and the eye in EAU. Propionate suppressed T effector cell migration between the intestine and the spleen in EAU Kaede mice. In conclusion, our findings support exogenous administration of SCFAs as a potential treatment strategy for uveitis through the stabilization of subclinical intestinal alterations that occur in inflammatory diseases including uveitis, as well as prevention of trafficking of leukocytes between the gastrointestinal tract and extra-intestinal tissues.
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107
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Kespohl M, Vachharajani N, Luu M, Harb H, Pautz S, Wolff S, Sillner N, Walker A, Schmitt-Kopplin P, Boettger T, Renz H, Offermanns S, Steinhoff U, Visekruna A. The Microbial Metabolite Butyrate Induces Expression of Th1-Associated Factors in CD4 + T Cells. Front Immunol 2017; 8:1036. [PMID: 28894447 PMCID: PMC5581317 DOI: 10.3389/fimmu.2017.01036] [Citation(s) in RCA: 180] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 08/11/2017] [Indexed: 12/13/2022] Open
Abstract
Short-chain fatty acids (SCFAs), which are generated by the bacterial fermentation of dietary fibers, promote expansion of regulatory T cells (Tregs). Potential therapeutic value of SCFAs has been recently highlighted in the experimental models of T cell-mediated autoimmunity and allergic inflammation. These studies suggest that physiological intestinal concentrations of SCFAs within the millimolar range are crucial for dampening inflammation-mediated processes. Here, we describe opposing effects of SCFAs on T cell-mediated immune responses. In accordance with published data, lower butyrate concentrations facilitated differentiation of Tregs in vitro and in vivo under steady-state conditions. In contrast, higher concentrations of butyrate induced expression of the transcription factor T-bet in all investigated T cell subsets resulting in IFN-γ-producing Tregs or conventional T cells. This effect was mediated by the inhibition of histone deacetylase activity and was independent of SCFA-receptors FFA2 and FFA3 as well as of Na+-coupled SCFA transporter Slc5a8. Importantly, while butyrate was not able to induce the generation of Tregs in the absence of TGF-β1, the expression of T-bet and IFN-γ was triggered upon stimulation of CD4+ T cells with this SCFA alone. Moreover, the treatment of germ-free mice with butyrate enhanced the expression of T-bet and IFN-γ during acute colitis. Our data reveal that, depending on its concentration and immunological milieu, butyrate may exert either beneficial or detrimental effects on the mucosal immune system.
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Affiliation(s)
- Meike Kespohl
- Institute for Medical Microbiology and Hygiene, Philipps University of Marburg, Marburg, Germany
| | - Niyati Vachharajani
- Institute for Medical Microbiology and Hygiene, Philipps University of Marburg, Marburg, Germany
| | - Maik Luu
- Institute for Medical Microbiology and Hygiene, Philipps University of Marburg, Marburg, Germany
| | - Hani Harb
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps University of Marburg, Marburg, Germany
| | - Sabine Pautz
- Institute for Medical Microbiology and Hygiene, Philipps University of Marburg, Marburg, Germany
| | - Svenja Wolff
- Institute for Medical Microbiology and Hygiene, Philipps University of Marburg, Marburg, Germany
| | - Nina Sillner
- Research Unit Analytical BioGeoChemistry, Department of Environmental Sciences, Helmholtz Zentrum München, Neuherberg, Germany.,ZIEL - Institute for Food and Health, Technical University of Munich, Freising, Germany
| | - Alesia Walker
- Research Unit Analytical BioGeoChemistry, Department of Environmental Sciences, Helmholtz Zentrum München, Neuherberg, Germany
| | - Philippe Schmitt-Kopplin
- Research Unit Analytical BioGeoChemistry, Department of Environmental Sciences, Helmholtz Zentrum München, Neuherberg, Germany.,ZIEL - Institute for Food and Health, Technical University of Munich, Freising, Germany.,Analytical Food Chemistry, Technical University of Munich, Freising, Germany
| | - Thomas Boettger
- Department of Cardiac Development and Remodelling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Harald Renz
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps University of Marburg, Marburg, Germany
| | - Stefan Offermanns
- Department of Pharmacology, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Ulrich Steinhoff
- Institute for Medical Microbiology and Hygiene, Philipps University of Marburg, Marburg, Germany
| | - Alexander Visekruna
- Institute for Medical Microbiology and Hygiene, Philipps University of Marburg, Marburg, Germany
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108
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Kim CH. Microbiota or short-chain fatty acids: which regulates diabetes? Cell Mol Immunol 2017; 15:88-91. [PMID: 28713163 DOI: 10.1038/cmi.2017.57] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 06/03/2017] [Indexed: 02/07/2023] Open
Affiliation(s)
- Chang H Kim
- Laboratory of Immunology and Hematopoiesis, Department of Comparative Pathobiology and Biological Sciences, Weldon School of Biomedical Engineering, Purdue Institute of Inflammation, Immunology and Infectious Diseases, Purdue Center for Cancer Research, Purdue University, West Lafayette, IN 47907, USA
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109
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Qiang Y, Xu J, Yan C, Jin H, Xiao T, Yan N, Zhou L, An H, Zhou X, Shao Q, Xia S. Butyrate and retinoic acid imprint mucosal-like dendritic cell development synergistically from bone marrow cells. Clin Exp Immunol 2017; 189:290-297. [PMID: 28542882 DOI: 10.1111/cei.12990] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2017] [Indexed: 12/27/2022] Open
Abstract
Accumulating data show that the phenotypes and functions of distinctive mucosal dendritic cells (DCs) in the gut are regulated by retinoic acid (RA). Unfortunately, the exact role of butyrate in RA-mediated mucosal DC differentiation has not been elucidated thoroughly to date. Mucosal-like dendritic cell differentiation was completed in vitro by culturing bone marrow cells with growth factors [granulocyte-macrophage colony-stimulating factor (GM-CSF/interleukin (IL)-4], RA and/or butyrate. The phenotypes, cytokine secretion, immune functions and levels of retinal dehydrogenase of different DCs were detected using quantitative polymerase chain reaction (qPCR), enzyme-linked immunosorbent assay (ELISA) and flow cytometry, respectively. The results showed that RA-induced DCs (RA-DCs) showed mucosal DC properties, including expression of CD103 and gut homing receptor α4 β7 , low proinflammatory cytokine secretion and low priming capability to antigen-specific CD4+ T cells. Butyrate-treated RA-DCs (Bu-RA-DCs) decreased CD11c, but increased CD103 and α4 β7 expression. Moreover, the CD4+ T priming capability and the levels of retinal dehydrogenase of RA-DCs were suppressed significantly by butyrate. Thus, butyrate and retinoic acid have different but synergistic regulatory functions on mucosal DC differentiation, indicating that immune homeostasis in the gut depends largely upon RA and butyrate to imprint different mucosal DC subsets, both individually and collectively.
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Affiliation(s)
- Y Qiang
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.,Institute of Clinic Laboratory Diagnosis, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.,Department of Clinical Laboratory, the Second People's Hospital of Changzhou Affiliated to Nanjing Medical University, Changzhou, Jiangsu, China
| | - J Xu
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.,Institute of Clinic Laboratory Diagnosis, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - C Yan
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.,Institute of Clinic Laboratory Diagnosis, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - H Jin
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.,Institute of Clinic Laboratory Diagnosis, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - T Xiao
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.,Institute of Clinic Laboratory Diagnosis, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - N Yan
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.,Institute of Clinic Laboratory Diagnosis, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - L Zhou
- Institute of Clinic Laboratory Diagnosis, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - H An
- Cancer Institute, Institute of Translational Medicine, Second Military Medical University, Shanghai, China
| | - X Zhou
- Department of Pathology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Q Shao
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.,Institute of Clinic Laboratory Diagnosis, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - S Xia
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.,Institute of Clinic Laboratory Diagnosis, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
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110
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Chitrala KN, Guan H, Singh NP, Busbee B, Gandy A, Mehrpouya-Bahrami P, Ganewatta MS, Tang C, Chatterjee S, Nagarkatti P, Nagarkatti M. CD44 deletion leading to attenuation of experimental autoimmune encephalomyelitis results from alterations in gut microbiome in mice. Eur J Immunol 2017; 47:1188-1199. [PMID: 28543188 DOI: 10.1002/eji.201646792] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 03/17/2017] [Accepted: 05/10/2017] [Indexed: 02/06/2023]
Abstract
Dysbiosis in gut microbiome has been shown to be associated with inflammatory and autoimmune diseases. Previous studies from our laboratory demonstrated the pivotal role played by CD44 in the regulation of EAE, a murine model of multiple sclerosis. In the current study, we determined whether these effects resulted from an alteration in gut microbiota and the short-chain fatty acid (SCFA) production in CD44 knockout (CD44KO) mice. Fecal transfer from naïve CD44KO but not C57BL/6 wild type (CD44WT) mice, into EAE-induced CD44WT mice, led to significant amelioration of EAE. High-throughput bacterial 16S rRNA gene sequencing, followed by clustering sequences into operational taxonomic units (OTUs) and biochemical analysis, revealed that EAE-induced CD44KO mice showed significant diversity, richness, and evenness when compared to EAE-induced CD44WT mice at the phylum level, with dominant Bacteroidetes (68.5%) and low Firmicutes (26.8%). Further, data showed a significant change in the abundance of SCFAs, propionic acid, and i-butyric acid in EAE-CD44KO compared to EAE-CD44WT mice. In conclusion, our results demonstrate that the attenuation of EAE seen following CD44 gene deletion in mice may result from alterations in the gut microbiota and SCFAs. Furthermore, our studies also demonstrate that the phenotype of gene knock-out animals may be shaped by gut microbiota.
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Affiliation(s)
| | - Hongbing Guan
- Department of Pathology, Microbiology, and Immunology, University of South Carolina, Columbia, SC, USA.,Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
| | - Narendra P Singh
- Department of Pathology, Microbiology, and Immunology, University of South Carolina, Columbia, SC, USA
| | - Brandon Busbee
- Department of Pathology, Microbiology, and Immunology, University of South Carolina, Columbia, SC, USA
| | - Alexa Gandy
- Department of Pathology, Microbiology, and Immunology, University of South Carolina, Columbia, SC, USA
| | - Pegah Mehrpouya-Bahrami
- Department of Pathology, Microbiology, and Immunology, University of South Carolina, Columbia, SC, USA
| | - Mitra S Ganewatta
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, USA
| | - Chuanbing Tang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, USA
| | - Saurabh Chatterjee
- Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, USA
| | - Prakash Nagarkatti
- Department of Pathology, Microbiology, and Immunology, University of South Carolina, Columbia, SC, USA
| | - Mitzi Nagarkatti
- Department of Pathology, Microbiology, and Immunology, University of South Carolina, Columbia, SC, USA.,WJB Dorn VA Medical Center, Columbia, SC, USA
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111
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Wei J, Raynor J, Nguyen TLM, Chi H. Nutrient and Metabolic Sensing in T Cell Responses. Front Immunol 2017; 8:247. [PMID: 28337199 PMCID: PMC5343023 DOI: 10.3389/fimmu.2017.00247] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 02/20/2017] [Indexed: 12/13/2022] Open
Abstract
T cells play pivotal roles in shaping host immune responses in infectious diseases, autoimmunity, and cancer. The activation of T cells requires immune and growth factor-derived signals. However, alterations in nutrients and metabolic signals tune T cell responses by impinging upon T cell fates and immune functions. In this review, we summarize how key nutrients, including glucose, amino acids, and lipids, and their sensors and transporters shape T cell responses. We also briefly discuss regulation of T cell responses by oxygen and energy sensing mechanisms.
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Affiliation(s)
- Jun Wei
- Department of Immunology, St. Jude Children's Research Hospital , Memphis, TN , USA
| | - Jana Raynor
- Department of Immunology, St. Jude Children's Research Hospital , Memphis, TN , USA
| | - Thanh-Long M Nguyen
- Department of Immunology, St. Jude Children's Research Hospital , Memphis, TN , USA
| | - Hongbo Chi
- Department of Immunology, St. Jude Children's Research Hospital , Memphis, TN , USA
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112
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Huang W, Zhou L, Guo H, Xu Y, Xu Y. The role of short-chain fatty acids in kidney injury induced by gut-derived inflammatory response. Metabolism 2017; 68:20-30. [PMID: 28183450 DOI: 10.1016/j.metabol.2016.11.006] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 11/09/2016] [Accepted: 11/16/2016] [Indexed: 01/14/2023]
Abstract
It has been found that several circulating metabolites derived from gut microbiota fermentation associate with a systemic immuno-inflammatory response and kidney injury, which has been coined the gut-kidney axis. Recent evidence has suggested that short-chain fatty acids (SCFAs), which are primarily originated from fermentation of dietary fiber in the gut, play an important role in regulation of immunity, blood pressure, glucose and lipid metabolism, and seem to be the link between microbiota and host homeostasis. In addition to their important role as fuel for colonic epithelial cells, SCFAs also modulate different cell signal transduction processes via G-protein coupled receptors, and act as epigenetic regulators by the inhibition of histone deacetylase and as potential mediators involved in the autophagy pathway. Though controversial, an intimate connection between SCFAs and kidney injury has been revealed, suggesting that SCFAs may act as new therapeutic targets of kidney injury. This review is intended to provide an overview of the impact of SCFAs and the potential link to kidney injury induced by gut-derived inflammatory response.
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Affiliation(s)
- Wei Huang
- Faculty of Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, PR China; State Key Laboratory of Quality Research in Chinese Medicine (Macau University of Science and Technology), Avenida Wai Long, Taipa, Macau, PR China; Department of Endocrinology, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, PR China. 646000
| | - Luping Zhou
- Department of Endocrinology, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, PR China. 646000
| | - Hengli Guo
- Faculty of Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, PR China; State Key Laboratory of Quality Research in Chinese Medicine (Macau University of Science and Technology), Avenida Wai Long, Taipa, Macau, PR China
| | - Youhua Xu
- Faculty of Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, PR China; State Key Laboratory of Quality Research in Chinese Medicine (Macau University of Science and Technology), Avenida Wai Long, Taipa, Macau, PR China.
| | - Yong Xu
- Faculty of Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, PR China; Department of Endocrinology, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, PR China. 646000.
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113
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Mizuno M, Noto D, Kaga N, Chiba A, Miyake S. The dual role of short fatty acid chains in the pathogenesis of autoimmune disease models. PLoS One 2017; 12:e0173032. [PMID: 28235016 PMCID: PMC5325617 DOI: 10.1371/journal.pone.0173032] [Citation(s) in RCA: 141] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 02/13/2017] [Indexed: 02/07/2023] Open
Abstract
Autoimmune diseases are influenced by both genetic and environmental factors. The gut environment has attracted much attention as an essential component that modulates immune responses, and therefore immune-mediated disorders, such as autoimmune diseases. Growing evidence suggests that microbiota and their metabolites are critical factors for immune modulation. Recently, we reported that the microbiome in patients with multiple sclerosis, an autoimmune disease targeting the myelin sheath of the central nervous system, is characterized by a reduction of bacteria belonging to Clostridia clusters IV and XIVa, which are potent producers of short-chain fatty acids (SCFAs) by fermentation of indigestible carbohydrates. In the present study, we investigated the role of SCFAs in the regulation of inflammation. We demonstrated that oral administration of SCFAs ameliorated the disease severity of systemic autoimmune inflammatory conditions mediated by lymphocytes such as experimental autoimmune encephalitis and collagen-induced arthritis. Amelioration of disease was associated with a reduction of Th1 cells and an increase in regulatory T cells. In contrast, SCFAs contributed to the exaggeration of K/BxN serum transfer arthritis, representing the effector phase of inflammation in rheumatoid arthritis. An increased understanding of the effect of microbiota metabolites will lead to the effective treatment and prevention of systemic inflammatory disorders.
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MESH Headings
- Administration, Oral
- Animals
- Anti-Inflammatory Agents/administration & dosage
- Arthritis, Experimental/drug therapy
- Arthritis, Experimental/immunology
- Drug Evaluation, Preclinical
- Encephalomyelitis, Autoimmune, Experimental/drug therapy
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Fatty Acids, Volatile/administration & dosage
- Mice, Inbred C57BL
- Mice, Inbred DBA
- Mice, Transgenic
- T-Lymphocytes, Regulatory/drug effects
- T-Lymphocytes, Regulatory/immunology
- Th1 Cells/drug effects
- Th1 Cells/immunology
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Affiliation(s)
- Miho Mizuno
- Department of Immunology, Juntendo University School of Medicine, Bunkyo-ku, Tokyo, Japan
| | - Daisuke Noto
- Department of Immunology, Juntendo University School of Medicine, Bunkyo-ku, Tokyo, Japan
| | - Naoko Kaga
- Laboratory of Proteomics and Biomolecular Science Research Support Center, Juntendo University Graduate School of Medicine, Bunkyo-ku, Tokyo, Japan
| | - Asako Chiba
- Department of Immunology, Juntendo University School of Medicine, Bunkyo-ku, Tokyo, Japan
| | - Sachiko Miyake
- Department of Immunology, Juntendo University School of Medicine, Bunkyo-ku, Tokyo, Japan
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114
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Nadeem A, Ahmad SF, Al-Harbi NO, El-Sherbeeny AM, Al-Harbi MM, Almukhlafi TS. GPR43 activation enhances psoriasis-like inflammation through epidermal upregulation of IL-6 and dual oxidase 2 signaling in a murine model. Cell Signal 2017; 33:59-68. [PMID: 28212864 DOI: 10.1016/j.cellsig.2017.02.014] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 02/06/2017] [Accepted: 02/13/2017] [Indexed: 10/20/2022]
Abstract
The gut is densely inhabited by commensal bacteria, which metabolize dietary fibers/undigested carbohydrates and produce short-chain fatty acids such as acetate. GPR43 is one of the receptors to sense short-chain fatty acids, and expressed in various immune and non-immune cells. Acetate/GPR43 signaling has been shown to affect various inflammatory diseases through Th17 responses and NADPH oxidase (NOX)-derived reactive oxygen species (ROS) generation. However, no study has previously explored the effects of GPR43 activation during psoriasis-like inflammation. Therefore, this study investigated the effect of acetate/phenylacetamide (GPR43 agonists) on imiquimod induced skin inflammation in mice. Mice were administered phenylacetamide/acetate followed by assessment of skin inflammation, NOXs (NOX-2, NOX-4, dual oxidases), and Th17 related signaling. Our study showed induction of epidermal GPR43 after imiquimod treatment, i.e. psoriasis-like inflammation. Acetate administration in psoriatic mice led to further increase in skin inflammation (ear thickness/myeloperoxidase activity) with concurrent increase in Th17 immune responses and epidermal dual oxidase-2 signaling. Further, topical application of GPR43 agonist, phenylacetamide led to enhanced ear thickness with concomitant epidermal IL-6 signaling as well as dual oxidase-2 upregulation which may be responsible for increased psoriasis-like inflammation. Taken together, dual oxidase-2 and IL-6 play important roles in GPR43-mediated skin inflammation. The current study suggests that GPR43 activation in psoriatic patients may lead to aggravation of psoriatic inflammation.
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Affiliation(s)
- Ahmed Nadeem
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.
| | - Sheikh F Ahmad
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Naif O Al-Harbi
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed M El-Sherbeeny
- Industrial Engineering Department, College of Engineering, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed M Al-Harbi
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Talal S Almukhlafi
- College of Medicine, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
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115
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Corrêa R, Vieira A, Sernaglia E, Lancellotti M, Vieira A, Avila-Campos M, Rodrigues H, Vinolo M. Bacterial short-chain fatty acid metabolites modulate the inflammatory response against infectious bacteria. Cell Microbiol 2017; 19. [DOI: 10.1111/cmi.12720] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 01/04/2017] [Accepted: 01/05/2017] [Indexed: 12/27/2022]
Affiliation(s)
- R. O. Corrêa
- Laboratory of Immunoinflammation, Department of Genetics, Evolution and Bioagents, Institute of Biology; University of Campinas; Campinas São Paulo Brazil
| | - A. Vieira
- Laboratory of Immunoinflammation, Department of Genetics, Evolution and Bioagents, Institute of Biology; University of Campinas; Campinas São Paulo Brazil
| | - E. M. Sernaglia
- Laboratory of Immunoinflammation, Department of Genetics, Evolution and Bioagents, Institute of Biology; University of Campinas; Campinas São Paulo Brazil
| | - M. Lancellotti
- Laboratory of Biotechnology, Department of Biochemistry, Institute of Biology; University of Campinas; Campinas São Paulo Brazil
| | - A. T. Vieira
- Immunopharmacology Group, Department of Biochemistry and Immunology, Institute of Biological Sciences; Federal University of Minas Gerais; Belo Horizonte Minas Gerais Brazil
| | - M. J. Avila-Campos
- Anaerobe Laboratory, Department of Microbiology, Institute of Biomedical Sciences; University of São Paulo; São Paulo Brazil
| | - H. G. Rodrigues
- Laboratory of Nutrients and Tissue Repair, School of Applied Sciences; University of Campinas; Limeira São Paulo Brazil
| | - M. A. R. Vinolo
- Laboratory of Immunoinflammation, Department of Genetics, Evolution and Bioagents, Institute of Biology; University of Campinas; Campinas São Paulo Brazil
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116
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Abstract
The intestinal epithelium, a single layer of cells organized into crypts and villi, is an important component of host defense against microbial community and its noxious metabolites. To preserve the epithelium integrity under constant exposure of intense physiological and environmental stressors, this surface is continuously and rapidly renewed by pluripotent intestinal epithelial stem cells that reside in the base of crypts. A recent study by Kaiko et al. shows that structural design of intestinal crypts protects the colonic epithelial stem/progenitor cells from proliferation-suppressing metabolites derived from the gut microbiota. Among these metabolites, butyrate is identified as the most potent inhibitor of colonic epithelial stem/progenitor cells proliferation. By rapidly metabolizing the butyrate, the colonocytes at the crypt further institute a metabolic barrier to protect the crypt-resident stem cells that fuel its renewal and repair.
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Affiliation(s)
- Vishal Singh
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, State College, PA, USA
| | - Beng San Yeoh
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, State College, PA, USA
| | - Matam Vijay-Kumar
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, State College, PA, USA
- Department of Medicine, The Penn State Hershey Medical Center, Hershey, PA, USA
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117
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Adam CL, Gratz SW, Peinado DI, Thomson LM, Garden KE, Williams PA, Richardson AJ, Ross AW. Effects of Dietary Fibre (Pectin) and/or Increased Protein (Casein or Pea) on Satiety, Body Weight, Adiposity and Caecal Fermentation in High Fat Diet-Induced Obese Rats. PLoS One 2016; 11:e0155871. [PMID: 27224646 PMCID: PMC4880334 DOI: 10.1371/journal.pone.0155871] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 05/05/2016] [Indexed: 01/12/2023] Open
Abstract
Dietary constituents that suppress appetite, such as dietary fibre and protein, may aid weight loss in obesity. The soluble fermentable dietary fibre pectin promotes satiety and decreases adiposity in diet-induced obese rats but effects of increased protein are unknown. Adult diet-induced obese rats reared on high fat diet (45% energy from fat) were given experimental diets ad libitum for 4 weeks (n = 8/group): high fat control, high fat with high protein (40% energy) as casein or pea protein, or these diets with added 10% w/w pectin. Dietary pectin, but not high protein, decreased food intake by 23% and induced 23% body fat loss, leading to 12% lower final body weight and 44% lower total body fat mass than controls. Plasma concentrations of satiety hormones PYY and total GLP-1 were increased by dietary pectin (168% and 151%, respectively) but not by high protein. Plasma leptin was decreased by 62% on pectin diets and 38% on high pea (but not casein) protein, while plasma insulin was decreased by 44% on pectin, 38% on high pea and 18% on high casein protein diets. Caecal weight and short-chain fatty acid concentrations in the caecum were increased in pectin-fed and high pea protein groups: caecal succinate was increased by pectin (900%), acetate and propionate by pectin (123% and 118%, respectively) and pea protein (147% and 144%, respectively), and butyrate only by pea protein (309%). Caecal branched-chain fatty acid concentrations were decreased by pectin (down 78%) but increased by pea protein (164%). Therefore, the soluble fermentable fibre pectin appeared more effective than high protein for increasing satiety and decreasing caloric intake and adiposity while on high fat diet, and produced a fermentation environment more likely to promote hindgut health. Altogether these data indicate that high fibre may be better than high protein for weight (fat) loss in obesity.
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Affiliation(s)
- Clare L. Adam
- Obesity & Metabolic Health Division, Rowett Institute of Nutrition & Health, University of Aberdeen, Aberdeen, Scotland, United Kingdom
| | - Silvia W. Gratz
- Gut Health Division, Rowett Institute of Nutrition & Health, University of Aberdeen, Aberdeen, Aberdeen, Scotland, United Kingdom
| | - Diana I. Peinado
- Obesity & Metabolic Health Division, Rowett Institute of Nutrition & Health, University of Aberdeen, Aberdeen, Scotland, United Kingdom
- Gut Health Division, Rowett Institute of Nutrition & Health, University of Aberdeen, Aberdeen, Aberdeen, Scotland, United Kingdom
| | - Lynn M. Thomson
- Obesity & Metabolic Health Division, Rowett Institute of Nutrition & Health, University of Aberdeen, Aberdeen, Scotland, United Kingdom
| | - Karen E. Garden
- Obesity & Metabolic Health Division, Rowett Institute of Nutrition & Health, University of Aberdeen, Aberdeen, Scotland, United Kingdom
| | - Patricia A. Williams
- Obesity & Metabolic Health Division, Rowett Institute of Nutrition & Health, University of Aberdeen, Aberdeen, Scotland, United Kingdom
| | - Anthony J. Richardson
- Gut Health Division, Rowett Institute of Nutrition & Health, University of Aberdeen, Aberdeen, Aberdeen, Scotland, United Kingdom
| | - Alexander W. Ross
- Obesity & Metabolic Health Division, Rowett Institute of Nutrition & Health, University of Aberdeen, Aberdeen, Scotland, United Kingdom
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118
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Regulation of immune cell function by short-chain fatty acids. Clin Transl Immunology 2016; 5:e73. [PMID: 27195116 PMCID: PMC4855267 DOI: 10.1038/cti.2016.17] [Citation(s) in RCA: 748] [Impact Index Per Article: 93.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 03/17/2016] [Accepted: 03/18/2016] [Indexed: 02/07/2023] Open
Abstract
Short-chain fatty acids (SCFAs) are bacterial fermentation products, which are chemically composed by a carboxylic acid moiety and a small hydrocarbon chain. Among them, acetic, propionic and butyric acids are the most studied, presenting, respectively, two, three and four carbons in their chemical structure. These metabolites are found in high concentrations in the intestinal tract, from where they are uptaken by intestinal epithelial cells (IECs). The SCFAs are partially used as a source of ATP by these cells. In addition, these molecules act as a link between the microbiota and the immune system by modulating different aspects of IECs and leukocytes development, survival and function through activation of G protein coupled receptors (FFAR2, FFAR3, GPR109a and Olfr78) and by modulation of the activity of enzymes and transcription factors including the histone acetyltransferase and deacetylase and the hypoxia-inducible factor. Considering that, it is not a surprise, the fact that these molecules and/or their targets are suggested to have an important role in the maintenance of intestinal homeostasis and that changes in components of this system are associated with pathological conditions including inflammatory bowel disease, obesity and others. The aim of this review is to present a clear and updated description of the effects of the SCFAs derived from bacteria on host immune system, as well as the molecular mechanisms involved on them.
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