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Kurumi H, Yokoyama Y, Hirano T, Akita K, Hayashi Y, Kazama T, Isomoto H, Nakase H. Cytokine Profile in Predicting the Effectiveness of Advanced Therapy for Ulcerative Colitis: A Narrative Review. Biomedicines 2024; 12:952. [PMID: 38790914 PMCID: PMC11117845 DOI: 10.3390/biomedicines12050952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 04/19/2024] [Accepted: 04/23/2024] [Indexed: 05/26/2024] Open
Abstract
Cytokine-targeted therapies have shown efficacy in treating patients with ulcerative colitis (UC), but responses to these advanced therapies can vary. This variability may be due to differences in cytokine profiles among patients with UC. While the etiology of UC is not fully understood, abnormalities of the cytokine profiles are deeply involved in its pathophysiology. Therefore, an approach focused on the cytokine profile of individual patients with UC is ideal. Recent studies have demonstrated that molecular analysis of cytokine profiles in UC can predict response to each advanced therapy. This narrative review summarizes the molecules involved in the efficacy of various advanced therapies for UC. Understanding these associations may be helpful in selecting optimal therapeutic agents.
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Affiliation(s)
- Hiroki Kurumi
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, S-1, W-16, Chuo-ku, Sapporo 060-8543, Hokkaido, Japan; (H.K.)
- Division of Gastroenterology and Nephrology, Department of Multidisciplinary Internal Medicine, Tottori University Faculty of Medicine, 36-1, Nishi-cho, Yonago 683-8504, Tottori, Japan
| | - Yoshihiro Yokoyama
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, S-1, W-16, Chuo-ku, Sapporo 060-8543, Hokkaido, Japan; (H.K.)
| | - Takehiro Hirano
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, S-1, W-16, Chuo-ku, Sapporo 060-8543, Hokkaido, Japan; (H.K.)
| | - Kotaro Akita
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, S-1, W-16, Chuo-ku, Sapporo 060-8543, Hokkaido, Japan; (H.K.)
| | - Yuki Hayashi
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, S-1, W-16, Chuo-ku, Sapporo 060-8543, Hokkaido, Japan; (H.K.)
| | - Tomoe Kazama
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, S-1, W-16, Chuo-ku, Sapporo 060-8543, Hokkaido, Japan; (H.K.)
| | - Hajime Isomoto
- Division of Gastroenterology and Nephrology, Department of Multidisciplinary Internal Medicine, Tottori University Faculty of Medicine, 36-1, Nishi-cho, Yonago 683-8504, Tottori, Japan
| | - Hiroshi Nakase
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, S-1, W-16, Chuo-ku, Sapporo 060-8543, Hokkaido, Japan; (H.K.)
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2
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Ulmert I, Lahl K. IL-23 to see: Gut DCs shine bright in inductive sites. J Exp Med 2024; 221:e20232144. [PMID: 38180806 PMCID: PMC10770875 DOI: 10.1084/jem.20232144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2024] Open
Abstract
The cytokine IL-23 plays important roles in intestinal barrier protection and integrity, but is also linked to chronic inflammation. In this issue of JEM, Ohara et al. (https://doi.org/10.1084/jem.20230923) provide clarity on the much-debated question of which cells produce IL-23.
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Affiliation(s)
- Isabel Ulmert
- Technical University of Denmark, Kongens Lyngby, Denmark
| | - Katharina Lahl
- Technical University of Denmark, Kongens Lyngby, Denmark
- Lund University, Lund, Sweden
- University of Calgary, Calgary, Canada
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3
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Ji T, Fu H, Wang L, Chen J, Tian S, Wang G, Wang L, Wang Z. Single-cell RNA profiling reveals classification and characteristics of mononuclear phagocytes in colorectal cancer. PLoS Genet 2024; 20:e1011176. [PMID: 38408082 PMCID: PMC10919852 DOI: 10.1371/journal.pgen.1011176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 03/07/2024] [Accepted: 02/08/2024] [Indexed: 02/28/2024] Open
Abstract
Colorectal cancer (CRC) is a major cause of cancer mortality and a serious health problem worldwide. Mononuclear phagocytes are the main immune cells in the tumor microenvironment of CRC with remarkable plasticity, and current studies show that macrophages are closely related to tumor progression, invasion and dissemination. To understand the immunological function of mononuclear phagocytes comprehensively and deeply, we use single-cell RNA sequencing and classify mononuclear phagocytes in CRC into 6 different subsets, and characterize the heterogeneity of each subset. We find that tissue inhibitor of metalloproteinases (TIMPs) involved in the differentiation of proinflammatory and anti-inflammatory mononuclear phagocytes. Trajectory of circulating monocytes differentiation into tumor-associated macrophages (TAMs) and the dynamic changes at levels of transcription factor (TF) regulons during differentiation were revealed. We also find that C5 subset, characterized by activation of lipid metabolism, is in the terminal state of differentiation, and that the abundance of C5 subset is negatively correlated with CRC patients' prognosis. Our findings advance the understanding of circulating monocytes' differentiation into macrophages, identify a new subset associated with CRC prognosis, and reveal a set of TF regulons regulating mononuclear phagocytes differentiation, which are expected to be potential therapeutic targets for reversing immunosuppressive tumor microenvironment.
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Affiliation(s)
- Tiantian Ji
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Regenerative Medicine and Multi-disciplinary Translational Research, Wuhan, China
- Hubei Provincial Engineering Research Center of Clinical Laboratory and Active Health Smart Equipment, Wuhan, China
| | - Haoyu Fu
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Regenerative Medicine and Multi-disciplinary Translational Research, Wuhan, China
- Hubei Provincial Engineering Research Center of Clinical Laboratory and Active Health Smart Equipment, Wuhan, China
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liping Wang
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Regenerative Medicine and Multi-disciplinary Translational Research, Wuhan, China
- Hubei Provincial Engineering Research Center of Clinical Laboratory and Active Health Smart Equipment, Wuhan, China
| | - Jinyun Chen
- Department of Transfusion, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shaobo Tian
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Regenerative Medicine and Multi-disciplinary Translational Research, Wuhan, China
- Hubei Provincial Engineering Research Center of Clinical Laboratory and Active Health Smart Equipment, Wuhan, China
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Guobin Wang
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Regenerative Medicine and Multi-disciplinary Translational Research, Wuhan, China
- Hubei Provincial Engineering Research Center of Clinical Laboratory and Active Health Smart Equipment, Wuhan, China
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lin Wang
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Regenerative Medicine and Multi-disciplinary Translational Research, Wuhan, China
- Hubei Provincial Engineering Research Center of Clinical Laboratory and Active Health Smart Equipment, Wuhan, China
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zheng Wang
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Regenerative Medicine and Multi-disciplinary Translational Research, Wuhan, China
- Hubei Provincial Engineering Research Center of Clinical Laboratory and Active Health Smart Equipment, Wuhan, China
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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4
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Dong X, Qi M, Cai C, Zhu Y, Li Y, Coulter S, Sun F, Liddle C, Uboha NV, Halberg R, Xu W, Marker P, Fu T. Farnesoid X receptor mediates macrophage-intrinsic responses to suppress colitis-induced colon cancer progression. JCI Insight 2024; 9:e170428. [PMID: 38258906 PMCID: PMC10906220 DOI: 10.1172/jci.insight.170428] [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: 03/10/2023] [Accepted: 12/05/2023] [Indexed: 01/24/2024] Open
Abstract
Bile acids (BAs) affect the intestinal environment by ensuring barrier integrity, maintaining microbiota balance, regulating epithelium turnover, and modulating the immune system. As a master regulator of BA homeostasis, farnesoid X receptor (FXR) is severely compromised in patients with inflammatory bowel disease (IBD) and colitis-associated colorectal cancer (CAC). At the front line, gut macrophages react to the microbiota and metabolites that breach the epithelium. We aim to study the role of the BA/FXR axis in macrophages. This study demonstrates that inflammation-induced epithelial abnormalities compromised FXR signaling and altered BAs' profile in a mouse CAC model. Further, gut macrophage-intrinsic FXR sensed aberrant BAs, leading to pro-inflammatory cytokines' secretion, which promoted intestinal stem cell proliferation. Mechanistically, activation of FXR ameliorated intestinal inflammation and inhibited colitis-associated tumor growth, by regulating gut macrophages' recruitment, polarization, and crosstalk with Th17 cells. However, deletion of FXR in bone marrow or gut macrophages escalated the intestinal inflammation. In summary, our study reveals a distinctive regulatory role of FXR in gut macrophages, suggesting its potential as a therapeutic target for addressing IBD and CAC.
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Affiliation(s)
- Xingchen Dong
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin Carbone Cancer Center (UWCCC), University of Wisconsin–Madison, Madison, Wisconsin, USA
| | - Ming Qi
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin Carbone Cancer Center (UWCCC), University of Wisconsin–Madison, Madison, Wisconsin, USA
| | - Chunmiao Cai
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin Carbone Cancer Center (UWCCC), University of Wisconsin–Madison, Madison, Wisconsin, USA
| | - Yu Zhu
- Department of Pathology, School of Medicine, Stanford University, Palo Alto, California, USA
| | - Yuwenbin Li
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, California, USA
| | - Sally Coulter
- Storr Liver Centre, The Westmead Institute for Medical Research and Sydney Medical School, University of Sydney, Westmead Hospital, Westmead, New South Wales, Australia
| | - Fei Sun
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin Carbone Cancer Center (UWCCC), University of Wisconsin–Madison, Madison, Wisconsin, USA
| | - Christopher Liddle
- Storr Liver Centre, The Westmead Institute for Medical Research and Sydney Medical School, University of Sydney, Westmead Hospital, Westmead, New South Wales, Australia
| | | | - Richard Halberg
- McArdle Laboratory for Cancer Research, School of Medicine and Public Health, University of Wisconsin–Madison, Madison, Wisconsin, USA
| | - Wei Xu
- McArdle Laboratory for Cancer Research, School of Medicine and Public Health, University of Wisconsin–Madison, Madison, Wisconsin, USA
| | - Paul Marker
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin Carbone Cancer Center (UWCCC), University of Wisconsin–Madison, Madison, Wisconsin, USA
| | - Ting Fu
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin Carbone Cancer Center (UWCCC), University of Wisconsin–Madison, Madison, Wisconsin, USA
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5
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Zuo S, Jiang L, Chen L, Wang W, Gu J, Kuai J, Yang X, Ma Y, Han C, Wei W. Involvement of Embryo-Derived and Monocyte-Derived Intestinal Macrophages in the Pathogenesis of Inflammatory Bowel Disease and Their Prospects as Therapeutic Targets. Int J Mol Sci 2024; 25:690. [PMID: 38255764 PMCID: PMC10815613 DOI: 10.3390/ijms25020690] [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: 10/31/2023] [Revised: 12/21/2023] [Accepted: 12/30/2023] [Indexed: 01/24/2024] Open
Abstract
Inflammatory bowel disease (IBD) is a group of intestinal inflammatory diseases characterized by chronic, recurrent, remitting, or progressive inflammation, which causes the disturbance of the homeostasis between immune cells, such as macrophages, epithelial cells, and microorganisms. Intestinal macrophages (IMs) are the largest population of macrophages in the body, and the abnormal function of IMs is an important cause of IBD. Most IMs come from the replenishment of blood monocytes, while a small part come from embryos and can self-renew. Stimulated by the intestinal inflammatory microenvironment, monocyte-derived IMs can interact with intestinal epithelial cells, intestinal fibroblasts, and intestinal flora, resulting in the increased differentiation of proinflammatory phenotypes and the decreased differentiation of anti-inflammatory phenotypes, releasing a large number of proinflammatory factors and aggravating intestinal inflammation. Based on this mechanism, inhibiting the secretion of IMs' proinflammatory factors and enhancing the differentiation of anti-inflammatory phenotypes can help alleviate intestinal inflammation and promote tissue repair. At present, the clinical medication of IBD mainly includes 5-aminosalicylic acids (5-ASAs), glucocorticoid, immunosuppressants, and TNF-α inhibitors. The general principle of treatment is to control acute attacks, alleviate the condition, reduce recurrence, and prevent complications. Most classical IBD therapies affecting IMs function in a variety of ways, such as inhibiting the inflammatory signaling pathways and inducing IM2-type macrophage differentiation. This review explores the current understanding of the involvement of IMs in the pathogenesis of IBD and their prospects as therapeutic targets.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Chenchen Han
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei 230032, China; (S.Z.); (L.J.); (L.C.); (W.W.); (J.G.); (J.K.); (X.Y.); (Y.M.)
| | - Wei Wei
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei 230032, China; (S.Z.); (L.J.); (L.C.); (W.W.); (J.G.); (J.K.); (X.Y.); (Y.M.)
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6
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Martin MD, Skon-Hegg C, Kim CY, Xu J, Kucaba TA, Swanson W, Pierson MJ, Williams JW, Badovinac VP, Shen SS, Ingersoll MA, Griffith TS. CD115 + monocytes protect microbially experienced mice against E. coli-induced sepsis. Cell Rep 2023; 42:113345. [PMID: 38111515 PMCID: PMC10727454 DOI: 10.1016/j.celrep.2023.113345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023] Open
Abstract
Uropathogenic E. coli (UPEC) is a primary organism responsible for urinary tract infections and a common cause of sepsis. Microbially experienced laboratory mice, generated by cohousing with pet store mice, exhibit increased morbidity and mortality to polymicrobial sepsis or lipopolysaccharide challenge. By contrast, cohoused mice display significant resistance, compared with specific pathogen-free mice, to a monomicrobial sepsis model using UPEC. CD115+ monocytes mediate protection in the cohoused mice, as depletion of these cells leads to increased mortality and UPEC pathogen burden. Further study of the cohoused mice reveals increased TNF-α production by monocytes, a skewing toward Ly6ChiCD115+ "classical" monocytes, and enhanced egress of Ly6ChiCD115+ monocytes from the bone marrow. Analysis of cohoused bone marrow also finds increased frequency and number of myeloid multipotent progenitor cells. These results show that a history of microbial exposure impacts innate immunity in mice, which can have important implications for the preclinical study of sepsis.
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Affiliation(s)
- Matthew D. Martin
- Department of Urology, University of Minnesota, Minneapolis, MN 55455, USA
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- These authors contributed equally
| | - Cara Skon-Hegg
- Department of Urology, University of Minnesota, Minneapolis, MN 55455, USA
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- These authors contributed equally
| | - Caleb Y. Kim
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Microbiology, Immunology, and Cancer Biology Graduate Program, University of Minnesota, Minneapolis, MN 55455, USA
| | - Julie Xu
- Department of Urology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Tamara A. Kucaba
- Department of Urology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Whitney Swanson
- Department of Urology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Mark J. Pierson
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Jesse W. Williams
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Vladimir P. Badovinac
- Department of Pathology, University of Iowa, Iowa City, IA 52242, USA
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, IA 52242, USA
| | - Steven S. Shen
- Institute for Health Informatics, University of Minnesota, Minneapolis, MN 55455, USA
| | - Molly A. Ingersoll
- Université Paris Cité, Institut Cochin, INSERM U1016, CNRS UMR 8104, 75014 Paris, France
- Mucosal Inflammation and Immunity, Department of Immunology, Institut Pasteur, Inserm U1223, 75015 Paris, France
| | - Thomas S. Griffith
- Department of Urology, University of Minnesota, Minneapolis, MN 55455, USA
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Microbiology, Immunology, and Cancer Biology Graduate Program, University of Minnesota, Minneapolis, MN 55455, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Minneapolis VA Health Care System, Minneapolis, MN 55417, USA
- Lead contact
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7
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Fritsch SD, Sukhbaatar N, Gonzales K, Sahu A, Tran L, Vogel A, Mazic M, Wilson JL, Forisch S, Mayr H, Oberle R, Weiszmann J, Brenner M, Vanhoutte R, Hofmann M, Pirnes-Karhu S, Magnes C, Kühnast T, Weckwerth W, Bock C, Klavins K, Hengstschläger M, Moissl-Eichinger C, Schabbauer G, Egger G, Pirinen E, Verhelst SHL, Weichhart T. Metabolic support by macrophages sustains colonic epithelial homeostasis. Cell Metab 2023; 35:1931-1943.e8. [PMID: 37804836 DOI: 10.1016/j.cmet.2023.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 06/23/2023] [Accepted: 09/14/2023] [Indexed: 10/09/2023]
Abstract
The intestinal epithelium has a high turnover rate and constantly renews itself through proliferation of intestinal crypt cells, which depends on insufficiently characterized signals from the microenvironment. Here, we showed that colonic macrophages were located directly adjacent to epithelial crypt cells in mice, where they metabolically supported epithelial cell proliferation in an mTORC1-dependent manner. Specifically, deletion of tuberous sclerosis complex 2 (Tsc2) in macrophages activated mTORC1 signaling that protected against colitis-induced intestinal damage and induced the synthesis of the polyamines spermidine and spermine. Epithelial cells ingested these polyamines and rewired their cellular metabolism to optimize proliferation and defense. Notably, spermine directly stimulated proliferation of colon epithelial cells and colon organoids. Genetic interference with polyamine production in macrophages altered global polyamine levels in the colon and modified epithelial cell proliferation. Our results suggest that macrophages act as "commensals" that provide metabolic support to promote efficient self-renewal of the colon epithelium.
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Affiliation(s)
| | - Nyamdelger Sukhbaatar
- Center for Pathobiochemsitry & Genetics, Medical University of Vienna, Vienna, Austria
| | - Karine Gonzales
- Center for Pathobiochemsitry & Genetics, Medical University of Vienna, Vienna, Austria
| | - Alishan Sahu
- Center for Pathobiochemsitry & Genetics, Medical University of Vienna, Vienna, Austria
| | - Loan Tran
- Department of Pathology, Medical University of Vienna, Vienna, Austria; Ludwig Boltzmann Institute Applied Diagnostics (LBI AD), Vienna, Austria
| | - Andrea Vogel
- Institute for Vascular Biology, Center for Physiology and Pharmacology, Medical University Vienna, Vienna, Austria; Christian Doppler Laboratory Arginine Metabolism in Rheumatoid Arthritis and Multiple Sclerosis, Vienna, Austria
| | - Mario Mazic
- Center for Pathobiochemsitry & Genetics, Medical University of Vienna, Vienna, Austria
| | - Jayne Louise Wilson
- Center for Pathobiochemsitry & Genetics, Medical University of Vienna, Vienna, Austria
| | - Stephan Forisch
- Center for Pathobiochemsitry & Genetics, Medical University of Vienna, Vienna, Austria
| | - Hannah Mayr
- Center for Pathobiochemsitry & Genetics, Medical University of Vienna, Vienna, Austria
| | - Raimund Oberle
- Center for Pathobiochemsitry & Genetics, Medical University of Vienna, Vienna, Austria
| | - Jakob Weiszmann
- Department of Ecogenomics and Systems Biology, University of Vienna, Vienna, Austria; Vienna Metabolomics Center (VIME), University of Vienna, Vienna, Austria
| | - Martin Brenner
- Department of Ecogenomics and Systems Biology, University of Vienna, Vienna, Austria; Department of Pharmaceutical Sciences/ Pharmacognosy, Faculty of Life Sciences, University of Vienna, Vienna, Austria; Vienna Metabolomics Center (VIME), University of Vienna, Vienna, Austria
| | - Roeland Vanhoutte
- Laboratory of Chemical Biology, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Melanie Hofmann
- Institute for Vascular Biology, Center for Physiology and Pharmacology, Medical University Vienna, Vienna, Austria; Christian Doppler Laboratory Arginine Metabolism in Rheumatoid Arthritis and Multiple Sclerosis, Vienna, Austria
| | - Sini Pirnes-Karhu
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Christoph Magnes
- HEALTH-Institute for Biomedicine and Health Sciences, Joanneum Research Forschungsgesellschaft mbH, Graz, Austria
| | - Torben Kühnast
- Diagnostic and Research Department of Microbiology, Hygiene and Environmental Medicine, Medical University of Graz, Graz, Austria
| | - Wolfram Weckwerth
- Department of Ecogenomics and Systems Biology, University of Vienna, Vienna, Austria; Vienna Metabolomics Center (VIME), University of Vienna, Vienna, Austria
| | - Christoph Bock
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria; Institute of Artificial Intelligence, Center for Medical Statistics, Informatics, and Intelligent Systems, Medical University of Vienna, Vienna, Austria
| | - Kristaps Klavins
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Markus Hengstschläger
- Center for Pathobiochemsitry & Genetics, Medical University of Vienna, Vienna, Austria
| | - Christine Moissl-Eichinger
- Diagnostic and Research Department of Microbiology, Hygiene and Environmental Medicine, Medical University of Graz, Graz, Austria
| | - Gernot Schabbauer
- Institute for Vascular Biology, Center for Physiology and Pharmacology, Medical University Vienna, Vienna, Austria; Christian Doppler Laboratory Arginine Metabolism in Rheumatoid Arthritis and Multiple Sclerosis, Vienna, Austria
| | - Gerda Egger
- Department of Pathology, Medical University of Vienna, Vienna, Austria; Ludwig Boltzmann Institute Applied Diagnostics (LBI AD), Vienna, Austria
| | - Eija Pirinen
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland; Research Unit of Biomedicine and Internal Medicine, Faculty of Medicine, University of Oulu, Oulu, Finland; Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland
| | - Steven H L Verhelst
- Laboratory of Chemical Biology, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Thomas Weichhart
- Center for Pathobiochemsitry & Genetics, Medical University of Vienna, Vienna, Austria.
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8
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Kemter AM, Patry RT, Arnold J, Hesser LA, Campbell E, Ionescu E, Mimee M, Wang S, Nagler CR. Commensal bacteria signal through TLR5 and AhR to improve barrier integrity and prevent allergic responses to food. Cell Rep 2023; 42:113153. [PMID: 37742185 PMCID: PMC10697505 DOI: 10.1016/j.celrep.2023.113153] [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: 11/30/2022] [Revised: 08/07/2023] [Accepted: 09/01/2023] [Indexed: 09/26/2023] Open
Abstract
The increasing prevalence of food allergies has been linked to reduced commensal microbial diversity. In this article, we describe two features of allergy-protective Clostridia that contribute to their beneficial effects. Some Clostridial taxa bear flagella (a ligand for TLR5) and produce indole (a ligand for the aryl hydrocarbon receptor [AhR]). Lysates and flagella from a Clostridia consortium induced interleukin-22 (IL-22) secretion from ileal explants. IL-22 production is abrogated in explants from mice in which TLR5 or MyD88 signaling is deficient either globally or conditionally in CD11c+ antigen-presenting cells. AhR signaling in RORγt+ cells is necessary for the induction of IL-22. Mice deficient in AhR in RORγt+ cells exhibit increased intestinal permeability and are more susceptible to an anaphylactic response to food. Our findings implicate TLR5 and AhR signaling in a molecular mechanism by which commensal Clostridia protect against allergic responses to food.
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Affiliation(s)
- Andrea M Kemter
- Department of Pathology, The University of Chicago, Chicago, IL 60637, USA
| | - Robert T Patry
- Department of Pathology, The University of Chicago, Chicago, IL 60637, USA
| | - Jack Arnold
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL 60637, USA
| | - Lauren A Hesser
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL 60637, USA
| | - Evelyn Campbell
- Committee on Microbiology, The University of Chicago, Chicago, IL 60637, USA
| | - Edward Ionescu
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL 60637, USA
| | - Mark Mimee
- Department of Microbiology, The University of Chicago, Chicago, IL 60637, USA; Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL 60637, USA; Committee on Microbiology, The University of Chicago, Chicago, IL 60637, USA
| | - Shan Wang
- Department of Pathology, The University of Chicago, Chicago, IL 60637, USA
| | - Cathryn R Nagler
- Department of Pathology, The University of Chicago, Chicago, IL 60637, USA; Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL 60637, USA; Committee on Immunology, The University of Chicago, Chicago, IL 60637, USA.
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9
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Scarno G, Mazej J, Laffranchi M, Di Censo C, Mattiola I, Candelotti AM, Pietropaolo G, Stabile H, Fionda C, Peruzzi G, Brooks SR, Tsai WL, Mikami Y, Bernardini G, Gismondi A, Sozzani S, Di Santo JP, Vosshenrich CAJ, Diefenbach A, Gadina M, Santoni A, Sciumè G. Divergent roles for STAT4 in shaping differentiation of cytotoxic ILC1 and NK cells during gut inflammation. Proc Natl Acad Sci U S A 2023; 120:e2306761120. [PMID: 37756335 PMCID: PMC10556635 DOI: 10.1073/pnas.2306761120] [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: 05/04/2023] [Accepted: 08/10/2023] [Indexed: 09/29/2023] Open
Abstract
Natural killer (NK) cells and type 1 innate lymphoid cells (ILC1) require signal transducer and activator of transcription 4 (STAT4) to elicit rapid effector responses and protect against pathogens. By combining genetic and transcriptomic approaches, we uncovered divergent roles for STAT4 in regulating effector differentiation of these functionally related cell types. Stat4 deletion in Ncr1-expressing cells led to impaired NK cell terminal differentiation as well as to an unexpected increased generation of cytotoxic ILC1 during intestinal inflammation. Mechanistically, Stat4-deficient ILC1 exhibited upregulation of gene modules regulated by STAT5 in vivo and an aberrant effector differentiation upon in vitro stimulation with IL-2, used as a prototypical STAT5 activator. Moreover, STAT4 expression in NCR+ innate lymphocytes restrained gut inflammation in the dextran sulfate sodium-induced colitis model limiting pathogenic production of IL-13 from adaptive CD4+ T cells in the large intestine. Collectively, our data shed light on shared and distinctive mechanisms of STAT4-regulated transcriptional control in NK cells and ILC1 required for intestinal inflammatory responses.
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Affiliation(s)
- Gianluca Scarno
- Department of Molecular Medicine, Sapienza University of Rome, Rome00161, Italy
- Laboratory affiliated to Istituto Pasteur Italia–Fondazione Cenci Bolognetti, Rome00161, Italy
| | - Julija Mazej
- Department of Molecular Medicine, Sapienza University of Rome, Rome00161, Italy
- Laboratory affiliated to Istituto Pasteur Italia–Fondazione Cenci Bolognetti, Rome00161, Italy
| | - Mattia Laffranchi
- Department of Molecular Medicine, Sapienza University of Rome, Rome00161, Italy
- Laboratory affiliated to Istituto Pasteur Italia–Fondazione Cenci Bolognetti, Rome00161, Italy
| | - Chiara Di Censo
- Department of Molecular Medicine, Sapienza University of Rome, Rome00161, Italy
- Laboratory affiliated to Istituto Pasteur Italia–Fondazione Cenci Bolognetti, Rome00161, Italy
| | - Irene Mattiola
- Laboratory of Innate Immunity, Institute of Microbiology, Infectious Diseases and Immunology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt–Universität zu Berlin, Campus Benjamin Franklin, Berlin12203, Germany
- Mucosal and Developmental Immunology, Deutsches Rheuma-Forschungszentrum, an Institute of the Leibniz Association, Berlin10117, Germany
| | - Arianna M. Candelotti
- Department of Molecular Medicine, Sapienza University of Rome, Rome00161, Italy
- Laboratory affiliated to Istituto Pasteur Italia–Fondazione Cenci Bolognetti, Rome00161, Italy
| | - Giuseppe Pietropaolo
- Department of Molecular Medicine, Sapienza University of Rome, Rome00161, Italy
- Laboratory affiliated to Istituto Pasteur Italia–Fondazione Cenci Bolognetti, Rome00161, Italy
| | - Helena Stabile
- Department of Molecular Medicine, Sapienza University of Rome, Rome00161, Italy
- Laboratory affiliated to Istituto Pasteur Italia–Fondazione Cenci Bolognetti, Rome00161, Italy
| | - Cinzia Fionda
- Department of Molecular Medicine, Sapienza University of Rome, Rome00161, Italy
- Laboratory affiliated to Istituto Pasteur Italia–Fondazione Cenci Bolognetti, Rome00161, Italy
| | - Giovanna Peruzzi
- Center for Life Nano- & Neuro-Science, Istituto Italiano di Tecnologia, Rome00161, Italy
| | - Stephen R. Brooks
- Biodata Mining and Discovery Section, Office of Science and Technology, National Institute of Arthritis, Musculoskeletal and Skin Diseases, NIH, Bethesda, MD20892
| | - Wanxia Li Tsai
- Translational Immunology Section, Office of Science and Technology, National Institute of Arthritis, Musculoskeletal and Skin Diseases, NIH, Bethesda, MD20892
| | - Yohei Mikami
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo1608582, Japan
| | - Giovanni Bernardini
- Department of Molecular Medicine, Sapienza University of Rome, Rome00161, Italy
- Laboratory affiliated to Istituto Pasteur Italia–Fondazione Cenci Bolognetti, Rome00161, Italy
| | - Angela Gismondi
- Department of Molecular Medicine, Sapienza University of Rome, Rome00161, Italy
- Laboratory affiliated to Istituto Pasteur Italia–Fondazione Cenci Bolognetti, Rome00161, Italy
| | - Silvano Sozzani
- Department of Molecular Medicine, Sapienza University of Rome, Rome00161, Italy
- Laboratory affiliated to Istituto Pasteur Italia–Fondazione Cenci Bolognetti, Rome00161, Italy
- Istituti di Ricovero e Cura a Carattere Scientifico Neuromed, Isernia86077, Italy
| | - James P. Di Santo
- Innate Immunity Unit, Institut Pasteur, Université Paris Cité, INSERM U1223, Paris75724, France
| | | | - Andreas Diefenbach
- Laboratory of Innate Immunity, Institute of Microbiology, Infectious Diseases and Immunology, Charité–Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt–Universität zu Berlin, Campus Benjamin Franklin, Berlin12203, Germany
- Mucosal and Developmental Immunology, Deutsches Rheuma-Forschungszentrum, an Institute of the Leibniz Association, Berlin10117, Germany
| | - Massimo Gadina
- Translational Immunology Section, Office of Science and Technology, National Institute of Arthritis, Musculoskeletal and Skin Diseases, NIH, Bethesda, MD20892
| | - Angela Santoni
- Department of Molecular Medicine, Sapienza University of Rome, Rome00161, Italy
- Laboratory affiliated to Istituto Pasteur Italia–Fondazione Cenci Bolognetti, Rome00161, Italy
- Istituti di Ricovero e Cura a Carattere Scientifico Neuromed, Isernia86077, Italy
| | - Giuseppe Sciumè
- Department of Molecular Medicine, Sapienza University of Rome, Rome00161, Italy
- Laboratory affiliated to Istituto Pasteur Italia–Fondazione Cenci Bolognetti, Rome00161, Italy
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10
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Zogorean R, Wirtz S. The yin and yang of B cells in a constant state of battle: intestinal inflammation and inflammatory bowel disease. Front Immunol 2023; 14:1260266. [PMID: 37849749 PMCID: PMC10577428 DOI: 10.3389/fimmu.2023.1260266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 09/18/2023] [Indexed: 10/19/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammatory disease of the gastrointestinal tract, defined by a clinical relapse-remitting course. Affecting people worldwide, the origin of IBD is still undefined, arising as a consequence of the interaction between genes, environment, and microbiota. Although the root cause is difficult to identify, data clearly indicate that dysbiosis and pathogenic microbial taxa are connected with the establishment and clinical course of IBD. The composition of the microbiota is shaped by plasma cell IgA secretion and binding, while cytokines such as IL10 or IFN-γ are important fine-tuners of the immune response in the gastrointestinal environment. B cells may also influence the course of inflammation by promoting either an anti-inflammatory or a pro-inflammatory milieu. Here, we discuss IgA-producing B regulatory cells as an anti-inflammatory factor in intestinal inflammation. Moreover, we specify the context of IgA and IgG as players that can potentially participate in mucosal inflammation. Finally, we discuss the role of B cells in mouse infection models where IL10, IgA, or IgG contribute to the outcome of the infection.
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Affiliation(s)
- Roxana Zogorean
- Medizinische Klinik 1, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Stefan Wirtz
- Medizinische Klinik 1, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Medical Immunology Campus Erlangen, FAU Erlangen-Nürnberg, Erlangen, Bavaria, Germany
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11
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Zhang S, Audiger C, Chopin M, Nutt SL. Transcriptional regulation of dendritic cell development and function. Front Immunol 2023; 14:1182553. [PMID: 37520521 PMCID: PMC10382230 DOI: 10.3389/fimmu.2023.1182553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 06/28/2023] [Indexed: 08/01/2023] Open
Abstract
Dendritic cells (DCs) are sentinel immune cells that form a critical bridge linking the innate and adaptive immune systems. Extensive research addressing the cellular origin and heterogeneity of the DC network has revealed the essential role played by the spatiotemporal activity of key transcription factors. In response to environmental signals DC mature but it is only following the sensing of environmental signals that DC can induce an antigen specific T cell response. Thus, whilst the coordinate action of transcription factors governs DC differentiation, sensing of environmental signals by DC is instrumental in shaping their functional properties. In this review, we provide an overview that focuses on recent advances in understanding the transcriptional networks that regulate the development of the reported DC subsets, shedding light on the function of different DC subsets. Specifically, we discuss the emerging knowledge on the heterogeneity of cDC2s, the ontogeny of pDCs, and the newly described DC subset, DC3. Additionally, we examine critical transcription factors such as IRF8, PU.1, and E2-2 and their regulatory mechanisms and downstream targets. We highlight the complex interplay between these transcription factors, which shape the DC transcriptome and influence their function in response to environmental stimuli. The information presented in this review provides essential insights into the regulation of DC development and function, which might have implications for developing novel therapeutic strategies for immune-related diseases.
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Affiliation(s)
- Shengbo Zhang
- Immunology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Cindy Audiger
- Immunology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Michaël Chopin
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
| | - Stephen L. Nutt
- Immunology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
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12
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Di Vincenzo A, Granzotto M, Crescenzi M, Costa C, Piaserico S, Vindigni V, Vettor R, Rossato M. Insulin Stimulates IL-23 Expression in Human Adipocytes: A Possible Explanation for the Higher Prevalence of Psoriasis in Obesity. Diabetes Metab Syndr Obes 2023; 16:1885-1893. [PMID: 37384131 PMCID: PMC10295559 DOI: 10.2147/dmso.s405374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 05/19/2023] [Indexed: 06/30/2023] Open
Abstract
Purpose Psoriasis is a chronic systemic inflammatory disease involving the production of many pro-inflammatory cytokines derived from immune cells and interacting with different tissues leading to the typical skin lesions. Psoriasis shows a higher prevalence and a worse progression in obese than in lean subjects. The IL-23/IL-17 immune axis has a pivotal role in the pathogenesis of psoriasis and anti-IL-23 monoclonal antibodies are highly effective in its treatment. Since obesity in frequently associated with elevated insulin plasma levels, we have investigated the ability of in vitro differentiated human adipocytes to produce IL-23 at basal conditions and after insulin stimulation. Material and Methods In vitro differentiated human adipocytes were incubated in the absence and presence of different insulin concentrations and the expression of IL-23 was analyzed by real-time PCR and Western blotting. Results The results of this study show that in vitro differentiated human adipocytes spontaneously express IL-23 mRNA and protein being stimulated by insulin in a dose-dependent manner. The stimulatory effects of insulin on IL-23 expression were specific since it did not stimulate the expression of other well-known cytokines involved in psoriasis pathogenesis such as Il-22 nor LL-37. Furthermore, lipopolysaccharide did not stimulate IL-23 expression in human adipocytes, thus highlightening the specific effects of insulin in the stimulation of IL-23 expression in human adipocytes. Conclusion Here we show that human adipocytes spontaneously express IL-23 and that insulin stimulates IL-23 production by these cells in a specific manner as other stimuli, known to be involved in psoriasis pathophysiology, are ineffective. These observations could explain the association between psoriasis and obesity, a condition frequently characterized by a state of insulin hypersecretion.
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Affiliation(s)
- Angelo Di Vincenzo
- Department of Medicine – DIMED, Clinica Medica 3, University - Hospital of Padova, Padova, Italy
| | - Marnie Granzotto
- Department of Medicine – DIMED, Clinica Medica 3, University - Hospital of Padova, Padova, Italy
| | - Marika Crescenzi
- Department of Medicine – DIMED, Clinica Medica 3, University - Hospital of Padova, Padova, Italy
| | - Camilla Costa
- Department of Medicine – DIMED, Clinica Medica 3, University - Hospital of Padova, Padova, Italy
| | - Stefano Piaserico
- Department of Medicine - DIMED, Section of Dermatology, University - Hospital of Padova, Padova, Italy
| | - Vincenzo Vindigni
- Department of Neurosciences, Clinic of Plastic Reconstructive and Aesthetic Surgery, University – Hospital of Padova, Padova, Italy
| | - Roberto Vettor
- Department of Medicine – DIMED, Clinica Medica 3, University - Hospital of Padova, Padova, Italy
| | - Marco Rossato
- Department of Medicine – DIMED, Clinica Medica 3, University - Hospital of Padova, Padova, Italy
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13
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Chauvin C, Alvarez-Simon D, Radulovic K, Boulard O, Laine W, Delacre M, Waldschmitt N, Segura E, Kluza J, Chamaillard M, Poulin LF. NOD2 in monocytes negatively regulates macrophage development through TNFalpha. Front Immunol 2023; 14:1181823. [PMID: 37415975 PMCID: PMC10320732 DOI: 10.3389/fimmu.2023.1181823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/23/2023] [Indexed: 07/08/2023] Open
Abstract
Objective It is believed that intestinal recruitment of monocytes from Crohn's Disease (CD) patients who carry NOD2 risk alleles may repeatedly give rise to recruitment of pathogenic macrophages. We investigated an alternative possibility that NOD2 may rather inhibit their differentiation from intravasating monocytes. Design The monocyte fate decision was examined by using germ-free mice, mixed bone marrow chimeras and a culture system yielding macrophages and monocyte-derived dendritic cells (mo-DCs). Results We observed a decrease in the frequency of mo-DCs in the colon of Nod2-deficient mice, despite a similar abundance of monocytes. This decrease was independent of the changes in the gut microbiota and dysbiosis caused by Nod2 deficiency. Similarly, the pool of mo-DCs was poorly reconstituted in a Nod2-deficient mixed bone marrow (BM) chimera. The use of pharmacological inhibitors revealed that activation of NOD2 during monocyte-derived cell development, dominantly inhibits mTOR-mediated macrophage differentiation in a TNFα-dependent manner. These observations were supported by the identification of a TNFα-dependent response to muramyl dipeptide (MDP) that is specifically lost when CD14-expressing blood cells bear a frameshift mutation in NOD2. Conclusion NOD2 negatively regulates a macrophage developmental program through a feed-forward loop that could be exploited for overcoming resistance to anti-TNF therapy in CD.
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Affiliation(s)
- Camille Chauvin
- U1019, Institut Pasteur de Lille, Univ. Lille, Centre National de la Recherche Scientifique, Inserm, Centre Hospitalo- Universitaire Lille, Lille, France
- INSERM U1138, Centre de Recherche des Cordeliers, Paris, France
| | - Daniel Alvarez-Simon
- U1019, Institut Pasteur de Lille, Univ. Lille, Centre National de la Recherche Scientifique, Inserm, Centre Hospitalo- Universitaire Lille, Lille, France
| | - Katarina Radulovic
- Unité de Recherche Clinique, Centre Hospitalier de Valenciennes, Valenciennes CEDEX, France
| | | | - William Laine
- UMR9020-U1277 - CANTHER - Cancer Heterogeneity Plasticity and Resistance to Therapies, University Lille, Lille, France
| | - Myriam Delacre
- U1019, Institut Pasteur de Lille, Univ. Lille, Centre National de la Recherche Scientifique, Inserm, Centre Hospitalo- Universitaire Lille, Lille, France
| | - Nadine Waldschmitt
- Chair of Nutrition and Immunology, School of Life Sciences, Technische Universität München, Freising-Weihenstephan, Germany
| | - Elodie Segura
- INSERM U932, Institut Curie, Paris Sciences et Lettres Research University, Paris, France
| | - Jérome Kluza
- UMR9020-U1277 - CANTHER - Cancer Heterogeneity Plasticity and Resistance to Therapies, University Lille, Lille, France
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14
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Wang L, Oliveira C, Li Q, Ferreira AS, Nunes C, Coimbra MA, Reis RL, Martins A, Wang C, Silva TH, Feng Y. Fucoidan from Fucus vesiculosus Inhibits Inflammatory Response, Both In Vitro and In Vivo. Mar Drugs 2023; 21:302. [PMID: 37233496 PMCID: PMC10221219 DOI: 10.3390/md21050302] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 05/27/2023] Open
Abstract
Fucoidan has been reported to present diverse bioactivities, but each extract has specific features from which a particular biological activity, such as immunomodulation, must be confirmed. In this study a commercially available pharmaceutical-grade fucoidan extracted from Fucus vesiculosus, FE, was characterized and its anti-inflammatory potential was investigated. Fucose was the main monosaccharide (90 mol%) present in the studied FE, followed by uronic acids, galactose, and xylose that were present at similar values (3.8-2.4 mol%). FE showed a molecular weight of 70 kDa and a sulfate content of around 10%. The expression of cytokines by mouse bone-marrow-derived macrophages (BMDMs) revealed that the addition of FE upregulated the expression of CD206 and IL-10 by about 28 and 22 fold, respectively, in respect to control. This was corroborated in a stimulated pro-inflammatory situation, with the higher expression (60 fold) of iNOS being almost completely reversed by the addition of FE. FE was also capable of reverse LPS-caused inflammation in an in vivo mouse model, including by reducing macrophage activation by LPS from 41% of positive CD11C to 9% upon fucoidan injection. Taken together, the potential of FE as an anti-inflammatory agent was validated, both in vitro and in vivo.
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Affiliation(s)
- Lingzhi Wang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529000, China
| | - Catarina Oliveira
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, 4805-017 Guimarães, Portugal
- ICVS/3B’s–PT Government Associate Laboratory, Braga, 4710-057 Guimarães, Portugal
| | - Qiu Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Andreia S. Ferreira
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Cláudia Nunes
- CICECO, Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Manuel A. Coimbra
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Rui L. Reis
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, 4805-017 Guimarães, Portugal
- ICVS/3B’s–PT Government Associate Laboratory, Braga, 4710-057 Guimarães, Portugal
| | - Albino Martins
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, 4805-017 Guimarães, Portugal
- ICVS/3B’s–PT Government Associate Laboratory, Braga, 4710-057 Guimarães, Portugal
| | - Chunming Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Tiago H. Silva
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, 4805-017 Guimarães, Portugal
- ICVS/3B’s–PT Government Associate Laboratory, Braga, 4710-057 Guimarães, Portugal
| | - Yanxian Feng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529000, China
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
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15
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Cabana-Puig X, Lu R, Geng S, Michaelis JS, Oakes V, Armstrong C, Testerman JC, Liao X, Alajoleen R, Appiah M, Zhang Y, Reilly CM, Li L, Luo XM. CX 3CR1 modulates SLE-associated glomerulonephritis and cardiovascular disease in MRL/lpr mice. Inflamm Res 2023; 72:1083-1097. [PMID: 37060359 PMCID: PMC10748465 DOI: 10.1007/s00011-023-01731-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 03/31/2023] [Accepted: 04/05/2023] [Indexed: 04/16/2023] Open
Abstract
OBJECTIVE Patients with systemic lupus erythematosus (SLE) often develop multi-organ damages including heart and kidney complications. We sought to better define the underlying mechanisms with a focus on the chemokine receptor CX3CR1. METHODS We generated Cx3cr1-deficient MRL/lpr lupus-prone mice through backcrossing. We then employed heterozygous intercross to generate MRL/lpr littermates that were either sufficient or deficient of CX3CR1. The mice were also treated with either Lactobacillus spp. or a high-fat diet (HFD) followed by assessments of the kidney and heart, respectively. RESULTS Cx3cr1-/- MRL/lpr mice exhibited a distinct phenotype of exacerbated glomerulonephritis compared to Cx3cr1+/+ littermates, which was associated with a decrease of spleen tolerogenic marginal zone macrophages and an increase of double-negative T cells. Interestingly, upon correction of the gut microbiota with Lactobacillus administration, the phenotype of exacerbated glomerulonephritis was reversed, suggesting that CX3CR1 controls glomerulonephritis in MRL/lpr mice through a gut microbiota-dependent mechanism. Upon treatment with HFD, Cx3cr1-/- MRL/lpr mice developed significantly more atherosclerotic plaques that were promoted by Ly6C+ monocytes. Activated monocytes expressed ICOS-L that interacted with ICOS-expressing follicular T-helper cells, which in turn facilitated a germinal center reaction to produce more autoantibodies. Through a positive feedback mechanism, the increased circulatory autoantibodies further promoted the activation of Ly6C+ monocytes and their display of ICOS-L. CONCLUSIONS We uncovered novel, Cx3cr1 deficiency-mediated pathogenic mechanisms contributing to SLE-associated glomerulonephritis and cardiovascular disease.
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Affiliation(s)
- Xavier Cabana-Puig
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, Blacksburg, VA, USA
| | - Ran Lu
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, Blacksburg, VA, USA
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, USA
| | - Shuo Geng
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, USA
| | - Jacquelyn S Michaelis
- Center for Bioinformatics and Computational Biology, University of Maryland, College Park, MD, USA
| | - Vanessa Oakes
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, Blacksburg, VA, USA
| | - Caitlin Armstrong
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, Blacksburg, VA, USA
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, USA
| | - James C Testerman
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, Blacksburg, VA, USA
| | - Xiaofeng Liao
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, Blacksburg, VA, USA
| | - Razan Alajoleen
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, Blacksburg, VA, USA
| | - Michael Appiah
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, Blacksburg, VA, USA
| | - Yao Zhang
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, USA
| | | | - Liwu Li
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, USA.
| | - Xin M Luo
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, Blacksburg, VA, USA.
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16
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Hegarty LM, Jones GR, Bain CC. Macrophages in intestinal homeostasis and inflammatory bowel disease. Nat Rev Gastroenterol Hepatol 2023:10.1038/s41575-023-00769-0. [PMID: 37069320 DOI: 10.1038/s41575-023-00769-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/13/2023] [Indexed: 04/19/2023]
Abstract
Macrophages are essential for the maintenance of intestinal homeostasis, yet appear to be drivers of inflammation in the context of inflammatory bowel disease (IBD). How these peacekeepers become powerful aggressors in IBD is still unclear, but technological advances have revolutionized our understanding of many facets of their biology. In this Review, we discuss the progress made in understanding the heterogeneity of intestinal macrophages, the functions they perform in gut health and how the environment and origin can control the differentiation and longevity of these cells. We describe how these processes might change in the context of chronic inflammation and how aberrant macrophage behaviour contributes to IBD pathology, and discuss how therapeutic approaches might target dysregulated macrophages to dampen inflammation and promote mucosal healing. Finally, we set out key areas in the field of intestinal macrophage biology for which further investigation is warranted.
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Affiliation(s)
- Lizi M Hegarty
- Centre for Inflammation Research, Institute of Regeneration and Repair, University of Edinburgh, Edinburgh BioQuarter, Queen's Medical Research Institute, Edinburgh, UK
| | - Gareth-Rhys Jones
- Centre for Inflammation Research, Institute of Regeneration and Repair, University of Edinburgh, Edinburgh BioQuarter, Queen's Medical Research Institute, Edinburgh, UK
| | - Calum C Bain
- Centre for Inflammation Research, Institute of Regeneration and Repair, University of Edinburgh, Edinburgh BioQuarter, Queen's Medical Research Institute, Edinburgh, UK.
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17
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Gomez-Bris R, Saez A, Herrero-Fernandez B, Rius C, Sanchez-Martinez H, Gonzalez-Granado JM. CD4 T-Cell Subsets and the Pathophysiology of Inflammatory Bowel Disease. Int J Mol Sci 2023; 24:ijms24032696. [PMID: 36769019 PMCID: PMC9916759 DOI: 10.3390/ijms24032696] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/24/2023] [Accepted: 01/28/2023] [Indexed: 02/04/2023] Open
Abstract
Inflammatory bowel disease (IBD) is an umbrella term for the chronic immune-mediated idiopathic inflammation of the gastrointestinal tract, manifesting as Crohn's disease (CD) or ulcerative colitis (UC). IBD is characterized by exacerbated innate and adaptive immunity in the gut in association with microbiota dysbiosis and the disruption of the intestinal barrier, resulting in increased bacterial exposure. In response to signals from microorganisms and damaged tissue, innate immune cells produce inflammatory cytokines and factors that stimulate T and B cells of the adaptive immune system, and a prominent characteristic of IBD patients is the accumulation of inflammatory T-cells and their proinflammatory-associated cytokines in intestinal tissue. Upon antigen recognition and activation, CD4 T-cells differentiate towards a range of distinct phenotypes: T helper(h)1, Th2, Th9, Th17, Th22, T follicular helper (Tfh), and several types of T-regulatory cells (Treg). T-cells are generated according to and adapt to microenvironmental conditions and participate in a complex network of interactions among other immune cells that modulate the further progression of IBD. This review examines the role of the CD4 T-cells most relevant to IBD, highlighting how these cells adapt to the environment and interact with other cell populations to promote or inhibit the development of IBD.
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Affiliation(s)
- Raquel Gomez-Bris
- LamImSys Lab, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid (UAM), 28029 Madrid, Spain
| | - Angela Saez
- LamImSys Lab, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain
- Facultad de Ciencias Experimentales, Universidad Francisco de Vitoria (UFV), 28223 Pozuelo de Alarcón, Spain
| | - Beatriz Herrero-Fernandez
- LamImSys Lab, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid (UAM), 28029 Madrid, Spain
| | - Cristina Rius
- Department of History of Science and Information Science, School of Medicine and Dentistry, University of Valencia, 46010 Valencia, Spain
- UISYS Research Unit, University of Valencia, 46010 Valencia, Spain
- CIBER de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
| | - Hector Sanchez-Martinez
- LamImSys Lab, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain
| | - Jose M. Gonzalez-Granado
- LamImSys Lab, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain
- CIBER de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
- Department of Immunology, Ophthalmology and ENT, School of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-913908766
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Chan YT, Cheok YY, Cheong HC, Tan GMY, Seow SR, Tang TF, Sulaiman S, Looi CY, Gupta R, Arulanandam B, Wong WF. Influx of podoplanin-expressing inflammatory macrophages into the genital tract following Chlamydia infection. Immunol Cell Biol 2023; 101:305-320. [PMID: 36658328 DOI: 10.1111/imcb.12621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 12/25/2022] [Accepted: 01/17/2023] [Indexed: 01/21/2023]
Abstract
Genital Chlamydia trachomatis infection remains a major health issue as it causes severe complications including pelvic inflammatory disease, ectopic pregnancy and infertility in females as a result of infection-associated chronic inflammation. Podoplanin, a transmembrane receptor, has been previously reported on inflammatory macrophages. Thus, strategies that specifically target podoplanin might be able to reduce local inflammation. This study investigated the expression level and function of podoplanin in a C. trachomatis infection model. C57BL/6 mice infected with the mouse pathogen Chlamydia muridarum were examined intermittently from days 1 to 60 using flow cytometry analysis. Percentages of conventional macrophages (CD11b+ CD11c- F4/80+ ) versus inflammatory macrophages (CD11b+ CD11c+ F4/80+ ), and the expression of podoplanin in these cells were investigated. Subsequently, a podoplanin-knockout RAW264.7 cell was used to evaluate the function of podoplanin in C. trachomatis infection. Our findings demonstrated an increased CD11b+ cell volume in the spleen at day 9 after the infection, with augmented podoplanin expression, especially among the inflammatory macrophages. A large number of podoplanin-expressing macrophages were detected in the genital tract of C. muridarum-infected mice. Furthermore, analysis of the C. trachomatis-infected patients demonstrated a higher percentage of podoplanin-expressing monocytes than that in the noninfected controls. Using an in vitro infection in a transwell migration assay, we identified that macrophages deficient in podoplanin displayed defective migratory function toward C. trachomatis-infected HeLa 229 cells. Lastly, using immunoprecipitation-mass spectrometry method, we identified two potential podoplanin interacting proteins, namely, Cofilin 1 and Talin 1 actin-binding proteins. The present study reports a role of podoplanin in directing macrophage migration to the chlamydial infection site. Our results suggest a potential for reducing inflammation in individuals with chronic chlamydial infections by targeting podoplanin.
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Affiliation(s)
- Yee Teng Chan
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Yi Ying Cheok
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Heng Choon Cheong
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Grace Min Yi Tan
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Shi Rui Seow
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Ting Fang Tang
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Sofiah Sulaiman
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Chung Yeng Looi
- School of Bioscience, Faculty of Health & Medical Sciences, Taylor's University, Subang Jaya, Malaysia
| | - Rishein Gupta
- Center of Excellence in Infection Genomics, South Texas Center for Emerging Infectious Diseases, University of Texas at San Antonio, San Antonio, TX, USA
| | - Bernard Arulanandam
- Center of Excellence in Infection Genomics, South Texas Center for Emerging Infectious Diseases, University of Texas at San Antonio, San Antonio, TX, USA.,Department of Immunology, Tufts University School of Medicine, Boston, MA, USA
| | - Won Fen Wong
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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Villar J, Cros A, De Juan A, Alaoui L, Bonte PE, Lau CM, Tiniakou I, Reizis B, Segura E. ETV3 and ETV6 enable monocyte differentiation into dendritic cells by repressing macrophage fate commitment. Nat Immunol 2023; 24:84-95. [PMID: 36543959 PMCID: PMC9810530 DOI: 10.1038/s41590-022-01374-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 10/31/2022] [Indexed: 12/24/2022]
Abstract
In inflamed tissues, monocytes differentiate into macrophages (mo-Macs) or dendritic cells (mo-DCs). In chronic nonresolving inflammation, mo-DCs are major drivers of pathogenic events. Manipulating monocyte differentiation would therefore be an attractive therapeutic strategy. However, how the balance of mo-DC versus mo-Mac fate commitment is regulated is not clear. In the present study, we show that the transcriptional repressors ETV3 and ETV6 control human monocyte differentiation into mo-DCs. ETV3 and ETV6 inhibit interferon (IFN)-stimulated genes; however, their action on monocyte differentiation is independent of IFN signaling. Instead, we find that ETV3 and ETV6 directly repress mo-Mac development by controlling MAFB expression. Mice deficient for Etv6 in monocytes have spontaneous expression of IFN-stimulated genes, confirming that Etv6 regulates IFN responses in vivo. Furthermore, these mice have impaired mo-DC differentiation during inflammation and reduced pathology in an experimental autoimmune encephalomyelitis model. These findings provide information about the molecular control of monocyte fate decision and identify ETV6 as a therapeutic target to redirect monocyte differentiation in inflammatory disorders.
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Affiliation(s)
- Javiera Villar
- Institut Curie, PSL Research University, INSERM, U932,, Paris, France
| | - Adeline Cros
- Institut Curie, PSL Research University, INSERM, U932,, Paris, France
| | - Alba De Juan
- Institut Curie, PSL Research University, INSERM, U932,, Paris, France
| | - Lamine Alaoui
- Institut Curie, PSL Research University, INSERM, U932,, Paris, France
| | | | - Colleen M. Lau
- grid.137628.90000 0004 1936 8753Department of Pathology, New York University Grossman School of Medicine, New York, NY USA
| | - Ioanna Tiniakou
- grid.137628.90000 0004 1936 8753Department of Pathology, New York University Grossman School of Medicine, New York, NY USA
| | - Boris Reizis
- grid.137628.90000 0004 1936 8753Department of Pathology, New York University Grossman School of Medicine, New York, NY USA
| | - Elodie Segura
- Institut Curie, PSL Research University, INSERM, U932,, Paris, France.
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Liu J, Zheng ML, Chen M, Li K, Zhu X, Gao Y. Effect of ApoE ε4 gene polymorphism on the correlation between serum uric acid and left ventricular hypertrophy remodeling in patients with coronary heart disease. Front Cardiovasc Med 2022; 9:1055790. [PMID: 36620636 PMCID: PMC9811169 DOI: 10.3389/fcvm.2022.1055790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 12/05/2022] [Indexed: 12/24/2022] Open
Abstract
Background Hyperuricemia and dyslipidemia are associated with left ventricular hypertrophy (LVH), while the effect of ApoE gene polymorphism on the correlation between serum uric acid (UA) level and severity of LVH in patients with coronary heart disease (CHD) has not been clarified. Methods This was a retrospective observational study of patients with CHD. Patients were divided into groups of ε4 carriers and non-ε4 carriers based on sanger sequencing. The association of ApoE ε4 gene polymorphism, serum UA level, and LVH, determined by cardiac color Doppler ultrasound, was evaluated by multivariate analysis. Results A total of 989 CHD patients who underwent ApoE genotyping were enrolled and analyzed. Among them, the frequency of the ApoE ε4 genotype was 17.9% (15.7% for E3/4, 1.1% for E4/4, and 1.1% for E2/4). There were 159 patients with LVH, 262 with end-diastolic LV internal diameter (LVEDD) enlargement, 160 with left ventricular ejection fraction (LVEF) reduction, and 154 with heart failure. Multivariate analysis showed that for every increase of 10 μmol/L in serum UA level, the risk of LVH decreased in ε4 carriers (odds ratio (OR) = 0.94, 95% confidence interval (CI): 0.890-0.992, P = 0.025) and increased in non-ε4 carriers (OR = 1.03, 95% CI: 1.005-1.049, P = 0.016). The risk of LVEDD enlargement tended to decrease in ε4 carriers (OR = 0.98, 95% CI: 0.943-1.023, P = 0.391) and increased in non-ε4 carriers (OR = 1.03, 95% CI: 1.009-1.048, P = 0.003). The risk of LVEF reduction was reduced in ε4 carriers (OR = 0.996, 95% CI: 0.949-1.046, P = 0.872) and increased in non-ε4 carriers (OR = 1.02, 95% CI: 0.994-1.037, P = 0.17). The risk of LVEDD enlargement decreased in ε4 carriers (OR = 0.98, 95% CI: 0.931-1.036, P = 0.508) and increased in non-ε4 carriers (OR = 1.02, 95% CI: 0.998-1.042, P = 0.07). Conclusion High serum UA levels decreased the risk of LVH in ApoE ε4 carriers with CHD, while increased the risk of LVH in non-ε4 carriers.
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Bilbao‐Asensio M, Ruiz‐de‐Angulo A, Arguinzoniz AG, Cronin J, Llop J, Zabaleta A, Michue‐Seijas S, Sosnowska D, Arnold JN, Mareque‐Rivas JC. Redox‐Triggered Nanomedicine via Lymphatic Delivery: Inhibition of Melanoma Growth by Ferroptosis Enhancement and a Pt(IV)‐Prodrug Chemoimmunotherapy Approach. ADVANCED THERAPEUTICS 2022. [DOI: 10.1002/adtp.202200179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Marc Bilbao‐Asensio
- Department of Chemistry Swansea University Singleton Park Swansea SA2 8PP UK
| | | | | | - James Cronin
- Swansea University Medical School Singleton Park Swansea SA2 8PP UK
| | - Jordi Llop
- Radiochemistry and Nuclear Imaging Laboratory CIC biomaGUNE Paseo Miramón 182 San Sebastián 20014 Spain
| | - Aintzane Zabaleta
- Clinica Universidad de Navarra Centro de Investigación Médica Aplicada (CIMA) IdiSNA Instituto de Investigación Sanitaria de Navarra Pamplona 31009 Spain
| | - Saul Michue‐Seijas
- Department of Chemistry Swansea University Singleton Park Swansea SA2 8PP UK
| | - Dominika Sosnowska
- School of Cancer and Pharmaceutical Sciences King's College London London SE1 1UL UK
| | - James N. Arnold
- School of Cancer and Pharmaceutical Sciences King's College London London SE1 1UL UK
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22
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Ma X, Yang J, Wang X, Wang X, Chai S. The Clinical Value of Systemic Inflammatory Response Index and Inflammatory Prognosis Index in Predicting 3-Month Outcome in Acute Ischemic Stroke Patients with Intravenous Thrombolysis. Int J Gen Med 2022; 15:7907-7918. [PMID: 36314038 PMCID: PMC9601565 DOI: 10.2147/ijgm.s384706] [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: 08/02/2022] [Accepted: 10/13/2022] [Indexed: 11/16/2022] Open
Abstract
Purpose Systemic inflammatory response index (SIRI) was an independent predictor of the prognosis of many diseases. Inflammatory prognostic index (IPI) was a new inflammatory prognostic marker with certain clinical significance. We aimed to explore the association between SIRI, IPI and early stage severity of stroke as well as 3-month outcome of AIS patients. Patients and Methods A total of 63 AIS patients who treated with alteplase were selected. The patients were divided into mild group and moderate to severe group according to the National Institutes of Health Stroke Scale (NIHSS) scores. According to the modified Rankin scale (mRS) score, patients were divided into the good prognosis group and the poor prognosis group. Spearman correlation statistically analyzed the correlation between SIRI, IPI and NIHSS score. Univariate and multivariate logistic regression analyzed the risk factors of 3-month prognosis. ROC curve was adopted to predict the effect of SIRI and IPI levels on poor prognosis in AIS patients. Results Spearman analysis showed that there was positively correlated with NIHSS score and IPI in mild AIS group (r=0.541, P<0.05). Compared with the mild group, SIRI and IPI in the moderate to severe group was significantly higher (P<0.05). The SIRI and IPI in the poor prognosis group were significantly higher than those in the good prognosis group (P<0.05). Univariate and multivariate logistic regression analysis showed that SIRI and IPI were independent prognostic factors for the 3-month prognosis of AIS patients (P< 0.05). The ROC curve showed that the areas under the 3-month prognosis curve predicted by SIRI and IPI were 0.685, 0.774 respectively. Conclusion IPI is correlated with stroke severity at admission. SIRI and IPI are independent predictors of short-term prognosis in AIS patients. SIRI and IPI can be a novel the good short-term prognostic biomarker for AIS patients treated with intravenous thrombolysis.
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Affiliation(s)
- Xin Ma
- Department of Clinical Laboratory, Urumqi Friendship Hospital, Urumqi, Xinjiang Uygur Autonomous Region, People’s Republic of China
| | - Jie Yang
- Department of Clinical Laboratory, Urumqi Friendship Hospital, Urumqi, Xinjiang Uygur Autonomous Region, People’s Republic of China
| | - Xiaolu Wang
- Department of Clinical Laboratory, Urumqi Friendship Hospital, Urumqi, Xinjiang Uygur Autonomous Region, People’s Republic of China
| | - Xiang Wang
- Department of Clinical Laboratory, Urumqi Friendship Hospital, Urumqi, Xinjiang Uygur Autonomous Region, People’s Republic of China
| | - Shuhong Chai
- Department of Clinical Laboratory, Urumqi Friendship Hospital, Urumqi, Xinjiang Uygur Autonomous Region, People’s Republic of China,Correspondence: Shuhong Chai, Department of Clinical Laboratory, Urumqi Friendship Hospital, No. 558 Shengli Road, Tianshan District, Urumqi, Xinjiang Uygur Autonomous Region, 830049, People’s Republic of China, Tel +86-18997994493, Email
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23
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Microbiome-phage interactions in inflammatory bowel disease. Clin Microbiol Infect 2022:S1198-743X(22)00506-7. [PMID: 36191844 DOI: 10.1016/j.cmi.2022.08.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/23/2022] [Accepted: 08/29/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Inflammatory bowel diseases (IBD) constitute a group of auto-inflammatory disorders impacting the gastrointestinal tract and other systemic organs. The gut microbiome contributes to IBD pathology through multiple mechanisms. Bacteriophages (hence termed phages) are viruses that are able to specifically infect bacteria. Considered as part of the gut microbiome, phages may impact bacterial community structure in various clinical contexts. Additionally, exogenous phage administration may represent a means of suppressing IBD-associated pathobionts, yet utilization of phage therapy remains at an early developmental phase. OBJECTIVES Herein, we summarize the latest advances in understanding endogenous phage impacts on the gut microbiome in health and in IBD. We highlight the prospect of phage utilization as a targeted mode of pathobiont eradication, in preventing and treating IBD manifestations and complications. SOURCES Selected peer-reviewed publications regarding the role of phages in health and in IBD, published between 2013 and 2022. CONTENT The human gut microbiome is increasingly suggested to play a significant role in the onset and progression of multiple non-communicable diseases such as IBD. Several studies suggest that this effect may be mediated by discrete disease-contributing commensals. However, eradication of such pathogenic bacteria remains a daunting unmet task. Altered community structure in IBD may be influenced by blooms of phages within the gut bacterial ecosystem. Moreover, combinations of phages specifically targeting disease-contributing pathobiont strain clades may be harnessed as potential eradication treatment preventing and treating IBD, while bearing minimal adverse impacts on the surrounding bacterial microbiome. IMPLICATIONS Understanding endogenous phage-gut commensal interactions in health and in IBD may enable phage utilization in precision gut microbiome editing, towards treating IBD and other non-communicable microbiome-associated diseases. Nevertheless, developing phage combination-mediated IBD pathobiont eradication treatment modalities will likely necessitate better strain-level bacterial target identification and resolution of treatment-related challenges, such as phage delivery, off-target effects, and bacterial resistance.
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Millet N, Solis NV, Aguilar D, Lionakis MS, Wheeler RT, Jendzjowsky N, Swidergall M. IL-23 signaling prevents ferroptosis-driven renal immunopathology during candidiasis. Nat Commun 2022; 13:5545. [PMID: 36138043 PMCID: PMC9500047 DOI: 10.1038/s41467-022-33327-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 09/13/2022] [Indexed: 01/04/2023] Open
Abstract
During infection the host relies on pattern-recognition receptors to sense invading fungal pathogens to launch immune defense mechanisms. While fungal recognition and immune effector responses are organ and cell type specific, during disseminated candidiasis myeloid cells exacerbate collateral tissue damage. The β-glucan receptor ephrin type-A 2 receptor (EphA2) is required to initiate mucosal inflammatory responses during oral Candida infection. Here we report that EphA2 promotes renal immunopathology during disseminated candidiasis. EphA2 deficiency leads to reduced renal inflammation and injury. Comprehensive analyses reveal that EphA2 restrains IL-23 secretion from and migration of dendritic cells. IL-23 signaling prevents ferroptotic host cell death during infection to limit inflammation and immunopathology. Further, host cell ferroptosis limits antifungal effector functions via releasing the lipid peroxidation product 4-hydroxynonenal to induce various forms of cell death. Thus, we identify ferroptotic cell death as a critical pathway of Candida-mediated renal immunopathology that opens a new avenue to tackle Candida infection and inflammation.
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Affiliation(s)
- Nicolas Millet
- grid.239844.00000 0001 0157 6501Division of Infectious Diseases, Harbor-UCLA Medical Center, Torrance, CA USA ,grid.513199.6The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA USA
| | - Norma V. Solis
- grid.239844.00000 0001 0157 6501Division of Infectious Diseases, Harbor-UCLA Medical Center, Torrance, CA USA ,grid.513199.6The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA USA
| | - Diane Aguilar
- grid.513199.6The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA USA
| | - Michail S. Lionakis
- grid.419681.30000 0001 2164 9667Fungal Pathogenesis Section, Laboratory of Clinical Immunology and Microbiology (LCIM), National Institute of Allergy and Infectious Diseases (NIAID), Bethesda, MD USA
| | - Robert T. Wheeler
- grid.21106.340000000121820794Department of Molecular and Biomedical Sciences, University of Maine, Orono, ME USA
| | - Nicholas Jendzjowsky
- grid.513199.6The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA USA ,grid.19006.3e0000 0000 9632 6718David Geffen School of Medicine at UCLA, Los Angeles, CA USA
| | - Marc Swidergall
- grid.239844.00000 0001 0157 6501Division of Infectious Diseases, Harbor-UCLA Medical Center, Torrance, CA USA ,grid.513199.6The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA USA ,grid.19006.3e0000 0000 9632 6718David Geffen School of Medicine at UCLA, Los Angeles, CA USA
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25
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Huang D, Li H, Lin Y, Lin J, Li C, Kuang Y, Zhou W, Huang B, Wang P. Antibiotic-induced depletion of Clostridium species increases the risk of secondary fungal infections in preterm infants. Front Cell Infect Microbiol 2022; 12:981823. [PMID: 36118040 PMCID: PMC9473543 DOI: 10.3389/fcimb.2022.981823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/12/2022] [Indexed: 11/28/2022] Open
Abstract
Preterm infants or those with low birth weight are highly susceptible to invasive fungal disease (IFD) and other microbial or viral infection due to immaturity of their immune system. Antibiotics are routinely administered in these vulnerable infants in treatment of sepsis and other infectious diseases, which might cause perturbation of gut microbiome and hence development of IFD. In this study, we compared clinical characteristics of fungal infection after antibiotic treatment in preterm infants. As determined by 16S rRNA sequencing, compared with non-IFD patients with or without antibiotics treatment, Clostridium species in the intestinal tracts of patients with IFD were almost completely eliminated, and Enterococcus were increased. We established a rat model of IFD by intraperitoneal inoculation of C. albicans in rats pretreated with meropenem and vancomycin. After pretreatment with antibiotics, the intestinal microbiomes of rats infected with C. albicans were disordered, as characterized by an increase of proinflammatory conditional pathogens and a sharp decrease of Clostridium species and Bacteroides. Immunofluorescence analysis showed that C. albicans-infected rats pretreated with antibiotics were deficient in IgA and IL10, while the number of Pro-inflammatory CD11c+ macrophages was increased. In conclusion, excessive use of antibiotics promoted the imbalance of intestinal microbiome, especially sharp decreases of short-chain fatty acids (SCFA)-producing Clostridium species, which exacerbated the symptoms of IFD, potentially through decreased mucosal immunomodulatory molecules. Our results suggest that inappropriate use of broad-spectrum antibiotics may promote the colonization of invasive fungi. The results of this study provide new insights into the prevention of IFD in preterm infants.
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Affiliation(s)
- Dabin Huang
- Department of Neonatology, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Huixian Li
- Department of Data Center, Guangdong Provincial People’s Hospital, Guangzhou, China
| | - Yuying Lin
- Department of Neonatology, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Jinting Lin
- Department of Pediatrics, Guangzhou Medical University, Guangzhou, China
| | - Chengxi Li
- Department of Pediatrics, Guangzhou Medical University, Guangzhou, China
| | - Yashu Kuang
- Division of Birth Cohort Study, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Wei Zhou
- Department of Neonatology, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, China
- *Correspondence: Wei Zhou, ; Bing Huang, ; Ping Wang,
| | - Bing Huang
- Department of Gastroenterology, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- *Correspondence: Wei Zhou, ; Bing Huang, ; Ping Wang,
| | - Ping Wang
- Department of Neonatology, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, China
- *Correspondence: Wei Zhou, ; Bing Huang, ; Ping Wang,
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26
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Hand TW, Overacre-Delgoffe AE. The complex immunological role of Helicobacter in modulating cancer. Trends Immunol 2022; 43:826-832. [PMID: 36041951 DOI: 10.1016/j.it.2022.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/02/2022] [Accepted: 08/04/2022] [Indexed: 10/15/2022]
Abstract
The gut microbiota has recently emerged as a unique mechanism of immunotherapeutic resistance or response within certain cancer patients. Certain adherent bacterial species that reside along the epithelial barrier within the gastrointestinal tract have been shown to be the most immunogenic and include several species within the Helicobacteraceae family. The role of these microbes in cancer remains controversial and varies according to species, immune status, and cancer type. Here, we hypothesize that the functional characteristics rather than the bacterial species of Helicobacteraceae dictate the type of immune response with either a benefit or a detriment to overall cancer progression.
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Affiliation(s)
- T W Hand
- University of Pittsburgh, Department of Immunology, Pittsburgh, PA, USA; Children's Hospital of Pittsburgh, RK Mellon Institute, Department of Pediatrics, Pittsburgh, PA, USA
| | - A E Overacre-Delgoffe
- University of Pittsburgh, Department of Immunology, Pittsburgh, PA, USA; Cancer Immunology and Immunotherapy Program, UPMC Hillman Cancer Center, Pittsburgh, PA, USA.
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27
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Jimenez IA, Stilin AP, Morohaku K, Hussein MH, Koganti PP, Selvaraj V. Mitochondrial translocator protein deficiency exacerbates pathology in acute experimental ulcerative colitis. Front Physiol 2022; 13:896951. [PMID: 36060674 PMCID: PMC9437295 DOI: 10.3389/fphys.2022.896951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 07/26/2022] [Indexed: 11/13/2022] Open
Abstract
In human patients and animal models of ulcerative colitis (UC), upregulation of the mitochondrial translocator protein (TSPO) in the colon is consistent with inflammation. Although the molecular function for TSPO remains unclear, it has been investigated as a therapeutic target for ameliorating UC pathology. In this study, we examined the susceptibility of Tspo gene-deleted (Tspo -/- ) mice to insults as provided by the dextran sodium sulfate (DSS)-induced acute UC model. Our results show that UC clinical signs and pathology were severely exacerbated in Tspo -/- mice compared to control Tspo fl/fl cohorts. Histopathology showed extensive inflammation and epithelial loss in Tspo -/- mice that caused an aggravated disease. Colonic gene expression in UC uncovered an etiology linked to precipitous loss of epithelial integrity and disproportionate mast cell activation assessed by tryptase levels in Tspo -/- colons. Evaluation of baseline homeostatic shifts in Tspo -/- colons revealed gene expression changes noted in elevated epithelial Cdx2, mast cell Cd36 and Mcp6, with general indicators of lower proliferation capacity and elevated mitochondrial fatty acid oxidation. These findings demonstrate that intact physiological TSPO function serves to limit inflammation in acute UC, and provide a systemic basis for investigating TSPO-targeting mechanistic therapeutics.
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Affiliation(s)
- Isabel A. Jimenez
- Department of Animal Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY, United States,Department of Molecular and Comparative Pathobiology, The Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Allison P. Stilin
- Department of Animal Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY, United States
| | - Kanako Morohaku
- Department of Animal Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY, United States,School of Science and Technology, Institute of Agriculture, Shinshu University, Nagano, Japan
| | - Mahmoud H. Hussein
- Department of Animal Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY, United States
| | - Prasanthi P. Koganti
- Department of Animal Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY, United States
| | - Vimal Selvaraj
- Department of Animal Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY, United States,*Correspondence: Vimal Selvaraj,
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Feriotti C, Sá-Pessoa J, Calderón-González R, Gu L, Morris B, Sugisawa R, Insua JL, Carty M, Dumigan A, Ingram RJ, Kissenpfening A, Bowie AG, Bengoechea JA. Klebsiella pneumoniae hijacks the Toll-IL-1R protein SARM1 in a type I IFN-dependent manner to antagonize host immunity. Cell Rep 2022; 40:111167. [PMID: 35947948 PMCID: PMC9638020 DOI: 10.1016/j.celrep.2022.111167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 05/18/2022] [Accepted: 07/14/2022] [Indexed: 02/06/2023] Open
Abstract
Many bacterial pathogens antagonize host defense responses by translocating effector proteins into cells. It remains an open question how those pathogens not encoding effectors counteract anti-bacterial immunity. Here, we show that Klebsiella pneumoniae exploits the evolutionary conserved innate protein SARM1 to regulate negatively MyD88- and TRIF-governed inflammation, and the activation of the MAP kinases ERK and JNK. SARM1 is required for Klebsiella induction of interleukin-10 (IL-10) by fine-tuning the p38-type I interferon (IFN) axis. SARM1 inhibits the activation of Klebsiella-induced absent in melanoma 2 inflammasome to limit IL-1β production, suppressing further inflammation. Klebsiella exploits type I IFNs to induce SARM1 in a capsule and lipopolysaccharide O-polysaccharide-dependent manner via the TLR4-TRAM-TRIF-IRF3-IFNAR1 pathway. Absence of SARM1 reduces the intracellular survival of K. pneumoniae in macrophages, whereas sarm1-deficient mice control the infection. Altogether, our results illustrate an anti-immunology strategy deployed by a human pathogen. SARM1 inhibition will show a beneficial effect to treat Klebsiella infections.
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Affiliation(s)
- Claudia Feriotti
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, 97 Lisburn Road, Belfast, UK
| | - Joana Sá-Pessoa
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, 97 Lisburn Road, Belfast, UK
| | - Ricardo Calderón-González
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, 97 Lisburn Road, Belfast, UK
| | - Lili Gu
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Brenda Morris
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, 97 Lisburn Road, Belfast, UK
| | - Ryoichi Sugisawa
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Jose L Insua
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, 97 Lisburn Road, Belfast, UK
| | - Michael Carty
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Amy Dumigan
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, 97 Lisburn Road, Belfast, UK
| | - Rebecca J Ingram
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, 97 Lisburn Road, Belfast, UK
| | - Adrien Kissenpfening
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, 97 Lisburn Road, Belfast, UK
| | - Andrew G Bowie
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - José A Bengoechea
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, 97 Lisburn Road, Belfast, UK.
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29
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Abraham C, Abreu MT, Turner JR. Pattern Recognition Receptor Signaling and Cytokine Networks in Microbial Defenses and Regulation of Intestinal Barriers: Implications for Inflammatory Bowel Disease. Gastroenterology 2022; 162:1602-1616.e6. [PMID: 35149024 PMCID: PMC9112237 DOI: 10.1053/j.gastro.2021.12.288] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 11/30/2021] [Accepted: 12/10/2021] [Indexed: 12/23/2022]
Abstract
Inflammatory bowel disease is characterized by defects in epithelial function and dysregulated inflammatory signaling by lamina propria mononuclear cells including macrophages and dendritic cells in response to microbiota. In this review, we focus on the role of pattern recognition receptors in the inflammatory response as well as epithelial barrier regulation. We explore cytokine networks that increase inflammation, regulate paracellular permeability, cause epithelial damage, up-regulate epithelial proliferation, and trigger restitutive processes. We focus on studies using patient samples as well as speculate on pathways that can be targeted to more holistically treat patients with inflammatory bowel disease.
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Affiliation(s)
- Clara Abraham
- Department of Internal Medicine, Yale University, New Haven, Connecticut.
| | - Maria T. Abreu
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Miami Leonard Miller School of Medicine, Miami, FL
| | - Jerrold R. Turner
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
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30
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Forster SC, Clare S, Beresford-Jones BS, Harcourt K, Notley G, Stares MD, Kumar N, Soderholm AT, Adoum A, Wong H, Morón B, Brandt C, Dougan G, Adams DJ, Maloy KJ, Pedicord VA, Lawley TD. Identification of gut microbial species linked with disease variability in a widely used mouse model of colitis. Nat Microbiol 2022; 7:590-599. [PMID: 35365791 PMCID: PMC8975739 DOI: 10.1038/s41564-022-01094-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 02/24/2022] [Indexed: 12/12/2022]
Abstract
Experimental mouse models are central to basic biomedical research; however, variability exists across genetically identical mice and mouse facilities making comparisons difficult. Whether specific indigenous gut bacteria drive immunophenotypic variability in mouse models of human disease remains poorly understood. We performed a large-scale experiment using 579 genetically identical laboratory mice from a single animal facility, designed to identify the causes of disease variability in the widely used dextran sulphate sodium mouse model of inflammatory bowel disease. Commonly used treatment endpoint measures-weight loss and intestinal pathology-showed limited correlation and varied across mouse lineages. Analysis of the gut microbiome, coupled with machine learning and targeted anaerobic culturing, identified and isolated two previously undescribed species, Duncaniella muricolitica and Alistipes okayasuensis, and demonstrated that they exert dominant effects in the dextran sulphate sodium model leading to variable treatment endpoint measures. We show that the identified gut microbial species are common, but not ubiquitous, in mouse facilities around the world, and suggest that researchers monitor for these species to provide experimental design opportunities for improved mouse models of human intestinal diseases.
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Affiliation(s)
- Samuel C Forster
- Experimental Cancer Genetics Lab, Wellcome Sanger Institute, Hinxton, UK
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Department of Molecular and Translational Sciences, Monash University, Clayton, Victoria, Australia
| | - Simon Clare
- Experimental Cancer Genetics Lab, Wellcome Sanger Institute, Hinxton, UK
| | - Benjamin S Beresford-Jones
- Cambridge Institute of Therapeutic Immunology and Infectious Disease, Jeffrey Cheah Biomedical Centre, Cambridge, UK
- Department of Medicine, University of Cambridge School of Clinical Medicine, Cambridge, UK
| | - Katherine Harcourt
- Experimental Cancer Genetics Lab, Wellcome Sanger Institute, Hinxton, UK
| | - George Notley
- Experimental Cancer Genetics Lab, Wellcome Sanger Institute, Hinxton, UK
| | - Mark D Stares
- Experimental Cancer Genetics Lab, Wellcome Sanger Institute, Hinxton, UK
| | - Nitin Kumar
- Experimental Cancer Genetics Lab, Wellcome Sanger Institute, Hinxton, UK
| | - Amelia T Soderholm
- Cambridge Institute of Therapeutic Immunology and Infectious Disease, Jeffrey Cheah Biomedical Centre, Cambridge, UK
- Department of Medicine, University of Cambridge School of Clinical Medicine, Cambridge, UK
| | - Anne Adoum
- Experimental Cancer Genetics Lab, Wellcome Sanger Institute, Hinxton, UK
| | | | - Bélen Morón
- Experimental Medicine Division, University of Oxford, Oxford, UK
| | - Cordelia Brandt
- Experimental Cancer Genetics Lab, Wellcome Sanger Institute, Hinxton, UK
| | - Gordon Dougan
- Cambridge Institute of Therapeutic Immunology and Infectious Disease, Jeffrey Cheah Biomedical Centre, Cambridge, UK
- Department of Medicine, University of Cambridge School of Clinical Medicine, Cambridge, UK
| | - David J Adams
- Experimental Cancer Genetics Lab, Wellcome Sanger Institute, Hinxton, UK
| | - Kevin J Maloy
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | - Virginia A Pedicord
- Cambridge Institute of Therapeutic Immunology and Infectious Disease, Jeffrey Cheah Biomedical Centre, Cambridge, UK
- Department of Medicine, University of Cambridge School of Clinical Medicine, Cambridge, UK
| | - Trevor D Lawley
- Experimental Cancer Genetics Lab, Wellcome Sanger Institute, Hinxton, UK.
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31
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Jiménez C, Bordagaray MJ, Villarroel JL, Flores T, Benadof D, Fernández A, Valenzuela F. Biomarkers in Oral Fluids as Diagnostic Tool for Psoriasis. Life (Basel) 2022; 12:life12040501. [PMID: 35454992 PMCID: PMC9027180 DOI: 10.3390/life12040501] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 03/11/2022] [Accepted: 03/27/2022] [Indexed: 12/13/2022] Open
Abstract
Psoriasis is a prevalent worldwide chronic immuno-inflammatory skin disease with various variants and atypical cases. The use of biomarkers for the diagnosis of psoriasis can favor timely treatment and thus improve the quality of life of those affected. In general, the search for biomarkers in oral fluids is recommended as it is a non-invasive and fast technique. This narrative review aimed to identify biomarkers in gingival crevicular fluid (GCF) and saliva to diagnose psoriasis. To achieve this goal, we selected the available literature using the following MESH terms: “psoriasis”, “saliva” and “gingival crevicular fluid”. The studies analyzed for this review cover original research articles available in English. We found three full articles available for psoriasis biomarkers in GCF and ten articles available for psoriasis biomarkers in saliva. Studies showed that in the saliva of healthy individuals and those with psoriasis, there were differences in the levels of inflammatory cytokines, immunoglobulin A, and antioxidant biomarkers. In GCF, individuals with psoriasis showed higher levels of S100A8, IL-18 and sE-selectin in comparison to healthy individuals, independent of periodontal status. Despite these findings, more studies are required to determine an adequate panel of biomarkers to use in saliva or GCF for psoriasis.
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Affiliation(s)
- Constanza Jiménez
- Faculty of Dentistry, Universidad Andres Bello, Santiago 8370133, Chile; (C.J.); (D.B.)
| | - María José Bordagaray
- Department of Conservative Dentistry, Faculty of Dentistry, Universidad de Chile, Santiago 8380544, Chile;
| | - José Luis Villarroel
- Department of Dermatology, Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile;
| | - Tania Flores
- Research Centre in Dental Science (CICO), Faculty of Dentistry, Universidad de La Frontera, Temuco 4780000, Chile;
| | - Dafna Benadof
- Faculty of Dentistry, Universidad Andres Bello, Santiago 8370133, Chile; (C.J.); (D.B.)
| | - Alejandra Fernández
- Faculty of Dentistry, Universidad Andres Bello, Santiago 8370133, Chile; (C.J.); (D.B.)
- Correspondence: (A.F.); (F.V.); Tel.: +56-2-2661-5834 (A.F.); +56-2-2978-8173 (F.V.)
| | - Fernando Valenzuela
- Department of Dermatology, Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile;
- Correspondence: (A.F.); (F.V.); Tel.: +56-2-2661-5834 (A.F.); +56-2-2978-8173 (F.V.)
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32
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Autophagy impairment in liver CD11c + cells promotes non-alcoholic fatty liver disease through production of IL-23. Nat Commun 2022; 13:1440. [PMID: 35301333 PMCID: PMC8931085 DOI: 10.1038/s41467-022-29174-y] [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: 10/13/2020] [Accepted: 02/23/2022] [Indexed: 12/24/2022] Open
Abstract
There has been a global increase in rates of obesity with a parallel epidemic of non-alcoholic fatty liver disease (NAFLD). Autophagy is an essential mechanism involved in the degradation of cellular material and has an important function in the maintenance of liver homeostasis. Here, we explore the effect of Autophagy-related 5 (Atg5) deficiency in liver CD11c+ cells in mice fed HFD. When compared to control mice, Atg5-deficient CD11c+ mice exhibit increased glucose intolerance and decreased insulin sensitivity when fed HFD. This phenotype is associated with the development of NAFLD. We observe that IL-23 secretion is induced in hepatic CD11c+ myeloid cells following HFD feeding. We demonstrate that both therapeutic and preventative IL-23 blockade alleviates glucose intolerance, insulin resistance and protects against NAFLD development. This study provides insights into the function of autophagy and IL-23 production by hepatic CD11c+ cells in NAFLD pathogenesis and suggests potential therapeutic targets. The function of autophagy and how this affects non-alcoholic fatty liver disease is not fully known. Here the authors show that in mice with a targeted disruption of the autophagy pathway in CD11c+ cells, development of NAFLD is accelerated involving IL-23 and blocking of IL-23 reduces disease.
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33
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Orts B, Gutierrez A, Madero L, Sempere L, Frances R, Zapater P. Clinical and Immunological Factors Associated with Recommended Trough Levels of Adalimumab and Infliximab in Patients with Crohn's Disease. Front Pharmacol 2022; 12:795272. [PMID: 35046819 PMCID: PMC8762261 DOI: 10.3389/fphar.2021.795272] [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: 10/14/2021] [Accepted: 11/17/2021] [Indexed: 11/13/2022] Open
Abstract
Introduction: Up to 40% of patients with Crohn's disease do not respond to treatment with anti-TNF or lose response after the initial benefit. Low drug concentrations have been proposed as the main predictor of treatment failure. Our aim was to study the immunological profile and clinical evolution of patients with Crohn's disease according to the anti-TNF dose and serum trough levels. Methods: Crohn's disease patients in remission treated with infliximab or adalimumab at stable doses for at least for 3 months were included. Serum levels of anti-TNF, TNF-α, interferon-γ, and interleukin IL-12, IL-10, and IL-26 were determined in blood samples taken just before drug administration. Patients were classified according to anti-TNF levels below, within, or above the target level range and the use of intensified doses. Clinical evolution at 6 months was analyzed. Results: A total of 62 patients treated with infliximab (8 on intensified schedule) and 49 treated with adalimumab (7 on intensified schedule) were included. All infliximab-treated patients showed levels within the recommended range, but half of adalimumab-treated patients were below the recommended range. A significant negative relationship between body weight and adalimumab levels was observed, especially in patients treated with intensified doses. Patients with infliximab levels over 8 µg/ml presented higher median IL-10 than patients with in-range levels (84.0 pg/ml, interquartile range [IQR] 77.0-84.8 vs. 26.2 pg/mL, IQR 22.6-38.0; p < 0.001), along with lower values of interferon-γ (312.9 pg/ml, IQR 282.7-350.4 vs. 405.6 pg/ml, IQR 352.2-526.6; p = 0.005). Patients receiving intensified versus non-intensified doses of infliximab showed significantly higher IL-26 levels (91.8 pg/ml, IQR 75.6-109.5 vs. 20.5 pg/ml, IQR 16.2-32.2; p = 0.012), irrespective of serum drug levels. Patients with in-range levels of adalimumab showed higher values of IL-10 than patients with below-range levels (43.3 pg/ml, IQR 35.3-54.0 vs. 26.3 pg/ml, IQR 21.6-33.2; p = 0.001). Patients treated with intensified vs regular doses of adalimumab had increased levels of IL-12 (612.3 pg/ml, IQR 570.2-1353.7 vs. 516.4 pg/mL, IQR 474.5-591.2; p = 0.023). Four patients with low adalimumab levels (19%) and four treated with intensified doses were admitted to a hospital during a follow-up compared to none of the patients with levels within the range. Conclusion: Patients with Crohn's disease treated with infliximab and adalimumab exhibit differences in serum levels of cytokines depending on the drug, dose intensification, and steady state trough serum levels.
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Affiliation(s)
- Beatriz Orts
- Unidad de Farmacología Clínica, Hospital General Universitario de Alicante, Alicante, Spain.,Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante, Spain
| | - Ana Gutierrez
- Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante, Spain.,Servicio de Medicina Digestiva, Hospital General Universitario de Alicante, Alicante, Spain.,CIBERehd, Instituto de Salud Carlos III, Madrid, Spain
| | - Lucía Madero
- Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante, Spain.,Servicio de Medicina Digestiva, Hospital General Universitario de Alicante, Alicante, Spain
| | - Laura Sempere
- Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante, Spain.,Servicio de Medicina Digestiva, Hospital General Universitario de Alicante, Alicante, Spain
| | - Ruben Frances
- Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante, Spain.,CIBERehd, Instituto de Salud Carlos III, Madrid, Spain.,Clinical Medicine Department, Universidad Miguel Hernández, Elche, Spain
| | - Pedro Zapater
- Unidad de Farmacología Clínica, Hospital General Universitario de Alicante, Alicante, Spain.,Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante, Spain.,CIBERehd, Instituto de Salud Carlos III, Madrid, Spain.,Instituto de Investigación, Desarrollo e Innovación en Biotecnologia Sanitaria de Elche, IDiBE, Universidad Miguel Hernández, Elche, Spain
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34
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Gueddouri D, Caüzac M, Fauveau V, Benhamed F, Charifi W, Beaudoin L, Rouland M, Sicherre F, Lehuen A, Postic C, Boudry G, Burnol AF, Guilmeau S. Insulin resistance per se drives early and reversible dysbiosis-mediated gut barrier impairment and bactericidal dysfunction. Mol Metab 2022; 57:101438. [PMID: 35007789 PMCID: PMC8814824 DOI: 10.1016/j.molmet.2022.101438] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/24/2021] [Accepted: 01/05/2022] [Indexed: 11/30/2022] Open
Abstract
Objective A common feature of metabolic diseases is their association with chronic low-grade inflammation. While enhanced gut permeability and systemic bacterial endotoxin translocation have been suggested as key players of this metaflammation, the mechanistic bases underlying these features upon the diabesity cascade remain partly understood. Methods Here, we show in mice that, independently of obesity, the induction of acute and global insulin resistance and associated hyperglycemia, upon treatment with an insulin receptor (IR) antagonist (S961), elicits gut hyperpermeability without triggering systemic inflammatory response. Results Of note, S961-treated diabetic mice display major defects of gut barrier epithelial functions, such as increased epithelial paracellular permeability and impaired cell-cell junction integrity. We also observed in these mice the early onset of a severe gut dysbiosis, as characterized by the bloom of pro-inflammatory Proteobacteria, and the later collapse of Paneth cells antimicrobial defense. Interestingly, S961 treatment discontinuation is sufficient to promptly restore both the gut microbial balance and the intestinal barrier integrity. Moreover, fecal transplant approaches further confirm that S961-mediated dybiosis contributes at least partly to the disruption of the gut selective epithelial permeability upon diabetic states. Conclusions Together, our results highlight that insulin signaling is an indispensable gatekeeper of intestinal barrier integrity, acting as a safeguard against microbial imbalance and acute infections by enteropathogens. S961-mediated insulin resistance elicits reversible gut leakiness in lean mice. Diabetic leaky gut is associated with reduced Paneth cells antimicrobial defenses. S961 treatment triggers early onset of pro-inflammatory gut microbial imbalance. S961-associated dysbiosis contributes to intestinal barrier integrity impairment.
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Affiliation(s)
- Dalale Gueddouri
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Michèle Caüzac
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Véronique Fauveau
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Fadila Benhamed
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Wafa Charifi
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Lucie Beaudoin
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Matthieu Rouland
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Florian Sicherre
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Agnès Lehuen
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Catherine Postic
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France
| | - Gaëlle Boudry
- Institut NuMeCan, INRAE, INSERM, Univ Rennes, F35000, Rennes, France
| | | | - Sandra Guilmeau
- Université de Paris, Institut Cochin, CNRS, INSERM, F75014, Paris, France.
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35
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McKendrick JG, Emmerson E. The role of salivary gland macrophages in infection, disease and repair. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2022; 368:1-34. [PMID: 35636925 DOI: 10.1016/bs.ircmb.2022.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Macrophages are mononuclear innate immune cells which have become of increasing interest in the fields of disease and regeneration, as their non-classical functions have been elucidated in addition to their classical inflammatory functions. Macrophages can regulate tissue remodeling, by both mounting and reducing inflammatory responses; and exhibit direct communication with other cells to drive tissue turnover and cell replacement. Furthermore, macrophages have recently become an attractive therapeutic target to drive tissue regeneration. The major salivary glands are glandular tissues that are exposed to pathogens through their close connection with the oral cavity. Moreover, there are a number of diseases that preferentially destroy the salivary glands, causing irreversible injury, highlighting the need for a regenerative strategy. However, characterization of macrophages in the mouse and human salivary glands is sparse and has been mostly determined from studies in infection or autoimmune pathologies. In this review, we describe the current literature around salivary gland macrophages, and speculate about the niches they inhabit and how their role in development, regeneration and cancer may inform future therapeutic advances.
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Affiliation(s)
- John G McKendrick
- The Centre for Regenerative Medicine, Institute for Regeneration and Repair, The University of Edinburgh, Edinburgh, United Kingdom
| | - Elaine Emmerson
- The Centre for Regenerative Medicine, Institute for Regeneration and Repair, The University of Edinburgh, Edinburgh, United Kingdom.
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36
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Jeffery R, Ilott NE, Powrie F. Genetic and environmental factors shape the host response to Helicobacter hepaticus: insights into IBD pathogenesis. Curr Opin Microbiol 2021; 65:145-155. [PMID: 34883389 DOI: 10.1016/j.mib.2021.10.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 10/07/2021] [Accepted: 10/12/2021] [Indexed: 11/03/2022]
Abstract
Pathobionts are members of the gut microbiota with the capacity to cause disease when there is malfunctioning intestinal homeostasis. These organisms are thought to be major contributors to the pathogenesis of inflammatory bowel disease (IBD), a group of chronic inflammatory disorders driven by dysregulated responses towards the microbiota. Over two decades have passed since the discovery of Helicobacter hepaticus, a mouse pathobiont which causes colitis in the context of immune deficiency. During this time, we have developed a detailed understanding of the cellular players and cytokine networks which drive H. hepaticus immunopathology. However, we are just beginning to understand the microbial factors that enable H. hepaticus to interact with the host and influence colonic health and disease. Here we review key H. hepaticus-host interactions, their relevance to other exemplar pathobionts and how when maladapted they drive colitis. Further understanding of these pathways may offer new therapeutic approaches for IBD.
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Affiliation(s)
- Rebecca Jeffery
- Kennedy Institute of Rheumatology, University of Oxford, Old Road Campus, Roosevelt Drive, Headington, Oxford OX3 7FY, United Kingdom
| | - Nicholas E Ilott
- Kennedy Institute of Rheumatology, University of Oxford, Old Road Campus, Roosevelt Drive, Headington, Oxford OX3 7FY, United Kingdom
| | - Fiona Powrie
- Kennedy Institute of Rheumatology, University of Oxford, Old Road Campus, Roosevelt Drive, Headington, Oxford OX3 7FY, United Kingdom.
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Probiotics in Intestinal Mucosal Healing: A New Therapy or an Old Friend? Pharmaceuticals (Basel) 2021; 14:ph14111181. [PMID: 34832962 PMCID: PMC8622522 DOI: 10.3390/ph14111181] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/08/2021] [Accepted: 11/18/2021] [Indexed: 12/12/2022] Open
Abstract
Inflammatory bowel disease (IBD), Crohn’s disease, and ulcerative colitis are characterized by chronic and relapsing inflammation, while their pathogenesis remains mostly unelucidated. Gut commensal microbiota seem to be one of the various implicated factors, as several studies have shown a significant decrease in the microbiome diversity of patients with IBD. Although the question of whether microbiota dysbiosis is a causal factor or the result of chronic inflammation remains unanswered, one fact is clear; active inflammation in IBD results in the disruption of the mucus layer structure, barrier function, and also, colonization sites. Recently, many studies on IBD have been focusing on the interplay between mucosal and luminal microbiota, underlining their possible beneficial effect on mucosal healing. Regarding this notion, it has now been shown that specific probiotic strains, when administrated, lead to significantly decreased inflammation, amelioration of colitis, and improved mucosal healing. Probiotics are live microorganisms exerting beneficial effects on the host’s health when administered in adequate quantity. The aim of this review was to present and discuss the current findings on the role of gut microbiota and their metabolites in intestinal wound healing and the effects of probiotics on intestinal mucosal wound closure.
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Hausmann A, Felmy B, Kunz L, Kroon S, Berthold DL, Ganz G, Sandu I, Nakamura T, Zangger NS, Zhang Y, Dolowschiak T, Fattinger SA, Furter M, Müller-Hauser AA, Barthel M, Vlantis K, Wachsmuth L, Kisielow J, Tortola L, Heide D, Heikenwälder M, Oxenius A, Kopf M, Schroeder T, Pasparakis M, Sellin ME, Hardt WD. Intercrypt sentinel macrophages tune antibacterial NF-κB responses in gut epithelial cells via TNF. J Exp Med 2021; 218:e20210862. [PMID: 34529751 PMCID: PMC8480669 DOI: 10.1084/jem.20210862] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 07/21/2021] [Accepted: 08/25/2021] [Indexed: 12/14/2022] Open
Abstract
Intestinal epithelial cell (IEC) NF-κB signaling regulates the balance between mucosal homeostasis and inflammation. It is not fully understood which signals tune this balance and how bacterial exposure elicits the process. Pure LPS induces epithelial NF-κB activation in vivo. However, we found that in mice, IECs do not respond directly to LPS. Instead, tissue-resident lamina propria intercrypt macrophages sense LPS via TLR4 and rapidly secrete TNF to elicit epithelial NF-κB signaling in their immediate neighborhood. This response pattern is relevant also during oral enteropathogen infection. The macrophage-TNF-IEC axis avoids responses to luminal microbiota LPS but enables crypt- or tissue-scale epithelial NF-κB responses in proportion to the microbial threat. Thereby, intercrypt macrophages fulfill important sentinel functions as first responders to Gram-negative microbes breaching the epithelial barrier. The tunability of this crypt response allows the induction of defense mechanisms at an appropriate scale according to the localization and intensity of microbial triggers.
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Affiliation(s)
- Annika Hausmann
- Institute of Microbiology, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
| | - Boas Felmy
- Institute of Microbiology, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
| | - Leo Kunz
- Department of Biosystems Science and Engineering, Eidgenössische Technische Hochschule Zurich, Basel, Switzerland
| | - Sanne Kroon
- Institute of Microbiology, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
| | - Dorothée Lisa Berthold
- Institute of Microbiology, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
| | - Giverny Ganz
- Institute of Microbiology, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
| | - Ioana Sandu
- Institute of Microbiology, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
| | - Toshihiro Nakamura
- Institute of Microbiology, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
| | - Nathan Sébastien Zangger
- Institute of Microbiology, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
| | - Yang Zhang
- Department of Biosystems Science and Engineering, Eidgenössische Technische Hochschule Zurich, Basel, Switzerland
| | - Tamas Dolowschiak
- Institute of Microbiology, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
| | - Stefan Alexander Fattinger
- Institute of Microbiology, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Markus Furter
- Institute of Microbiology, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
| | - Anna Angelika Müller-Hauser
- Institute of Microbiology, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
| | - Manja Barthel
- Institute of Microbiology, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
| | - Katerina Vlantis
- Institute for Genetics, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, Germany
| | - Laurens Wachsmuth
- Institute for Genetics, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, Germany
| | - Jan Kisielow
- Institute of Molecular Health Sciences, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
| | - Luigi Tortola
- Institute of Molecular Health Sciences, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
| | - Danijela Heide
- Division of Chronic Inflammation and Cancer, German Cancer Research Center, Heidelberg, Germany
| | - Mathias Heikenwälder
- Division of Chronic Inflammation and Cancer, German Cancer Research Center, Heidelberg, Germany
| | - Annette Oxenius
- Institute of Microbiology, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
| | - Manfred Kopf
- Institute of Molecular Health Sciences, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
| | - Timm Schroeder
- Department of Biosystems Science and Engineering, Eidgenössische Technische Hochschule Zurich, Basel, Switzerland
| | - Manolis Pasparakis
- Institute for Genetics, Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, Germany
| | - Mikael Erik Sellin
- Institute of Microbiology, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Wolf-Dietrich Hardt
- Institute of Microbiology, Department of Biology, Eidgenössische Technische Hochschule Zurich, Zurich, Switzerland
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39
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Tuddenham S, Stennett CA, Cone RA, Ravel J, Macintyre AN, Ghanem KG, He X, Brotman RM. Vaginal cytokine profile and microbiota before and after lubricant use compared with condomless vaginal sex: a preliminary observational study. BMC Infect Dis 2021; 21:973. [PMID: 34537015 PMCID: PMC8449901 DOI: 10.1186/s12879-021-06512-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 07/18/2021] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Limited data suggest that personal lubricants may damage the vaginal mucosal epithelium, alter the vaginal microbiota, and increase inflammation. We compared vaginal cytokine profiles and microbiota before and after vaginal lubricant use and condomless vaginal sex. METHODS Reproductive-age women were recruited to a 10-week observational cohort study and were asked to self-collect vaginal samples and behavioral diaries daily. This nested case-control analysis utilized samples collected before and after self-reported condomless sexual activity with lubricants (22 case participants) and without lubricants (22 control participants). Controls were matched to cases on race/ethnicity. Microbiota composition was characterized by sequencing amplicons of the 16S rRNA gene V3-V4 regions. Cytokine concentrations were quantified using a magnetic bead 41-plex panel assay and read using a Bio-Plex 200 array reader. Wilcoxon signed-rank tests were used to assess baseline differences in vaginal cytokines between cases and controls as well as differences pre- and post-exposure. Linear mixed effects models were used to examine differences in relative post-to-pre change in each individual cytokine between matched cases and controls. Similar analyses were conducted for the microbiota data. RESULTS Mean age was 29.8 years (SD 6.8), and 63.6% were African American. There were few statistically significant changes in cytokines or microbiota before and after exposure in cases or controls. In mixed-effects modeling, the mean relative post-to-pre change of cytokines was higher in cases vs. controls for macrophage derived chemokine (MDC) (p = 0.03). The microbiota data revealed no significant changes when measured by similarity scores, diversity indexes and descriptive community state types (CST) transition analyses. However, post sexual activity, the mean relative abundance of L. crispatus decreased for those who used lubricants (particularly those who were L. iners-dominated prior to exposure). CONCLUSIONS Although there were overall few differences in the vaginal microbiota and cytokine profiles of lubricant users and controls before and after condomless vaginal sex, there was a trend toward decreases in relative abundance of L. crispatus following use of lubricant. Future larger studies that take into account osmolarity and composition of lubricants may provide additional insights.
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Affiliation(s)
- Susan Tuddenham
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Christina A Stennett
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Richard A Cone
- Department of Biophysics, Johns Hopkins University, Baltimore, MD, USA
| | - Jacques Ravel
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Andrew N Macintyre
- Department of Medicine, Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Khalil G Ghanem
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Xin He
- School of Public Health, University of Maryland College Park, College Park, MD, USA
| | - Rebecca M Brotman
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, USA.
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40
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Reuveni D, Brezis MR, Brazowski E, Vinestock P, Leung PSC, Thakker P, Gershwin ME, Zigmond E. Interleukin 23 Produced by Hepatic Monocyte-Derived Macrophages Is Essential for the Development of Murine Primary Biliary Cholangitis. Front Immunol 2021; 12:718841. [PMID: 34484224 PMCID: PMC8414574 DOI: 10.3389/fimmu.2021.718841] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 07/29/2021] [Indexed: 12/30/2022] Open
Abstract
Background and Aims Primary Biliary Cholangitis (PBC) is an organ-specific autoimmune liver disease. Mononuclear phagocytes (MNPs), comprise of monocyte, dendritic cells and monocyte-derived macrophages, constitute major arm of the innate immune system known to be involved in the pathogenesis of autoimmune disorders. MNPs were shown to accumulate around intra-hepatic bile ducts in livers of PBC patients. Interleukin 23 (IL-23) is a pro-inflammatory cytokine. IL-23-positive cells were detected in livers of patients with advanced stage PBC and IL-23 serum levels found to be in correlation with PBC disease severity. Our overall goal was to assess the importance of IL-23 derived from MNPs in PBC pathogenesis. Methods We utilized an inducible murine model of PBC and took advantage of transgenic mice targeting expression of IL-23 by specific MNP populations. Analysis included liver histology assessment, flow cytometry of hepatic immune cells and hepatic cytokine profile evaluation. Specific MNPs sub-populations were sorted and assessed for IL-23 expression levels. Results Flow cytometry analysis of non-parenchymal liver cells in autoimmune cholangitis revealed massive infiltration of the liver by MNPs and neutrophils and a decrease in Kupffer cells numbers. In addition, a 4-fold increase in the incidence of hepatic IL-17A producing CD4+ T cells was found to be associated with an increase in hepatic IL23-p19 and IL17A expression levels. Disease severity was significantly ameliorated in both CD11ccreP19flox/flox and CX3CR1creP19 flox/flox mice as assessed by reduced portal inflammation and decreased hepatic expression of various inflammatory cytokines. Amelioration of disease severity was associated with reduction in IL-17A producing CD4+ T cells percentages and decreased hepatic IL23-p19 and IL17A expression levels. qRT-PCR analysis of sorted hepatic MNPs demonstrated high expression levels of IL-23 mRNA specifically by CX3CR1hiCD11c+ monocyte-derived macrophages. Conclusion Our results indicate a major role for IL-23 produced by hepatic monocyte-derived macrophages in the pathogenesis of PBC. These results may pave the road for the development of new immune-based and cell specific therapeutic modalities for PBC patients not responding to current therapies.
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Affiliation(s)
- Debby Reuveni
- The Research Center for Digestive Tract and Liver Diseases, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Miriam R Brezis
- The Research Center for Digestive Tract and Liver Diseases, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Eli Brazowski
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Department of Pathology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Philip Vinestock
- The Research Center for Digestive Tract and Liver Diseases, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Patrick S C Leung
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, Davis, CA, United States
| | - Paresh Thakker
- Regeneron Pharmaceuticals, Inc., Tarrytown, NY, United States
| | - M Eric Gershwin
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, Davis, CA, United States
| | - Ehud Zigmond
- The Research Center for Digestive Tract and Liver Diseases, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Center for Autoimmune Liver Diseases, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
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41
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Bhattarai A, Kowalczyk W, Tran TN. A literature review on large intestinal hyperelastic constitutive modeling. Clin Biomech (Bristol, Avon) 2021; 88:105445. [PMID: 34416632 DOI: 10.1016/j.clinbiomech.2021.105445] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 06/29/2021] [Accepted: 07/29/2021] [Indexed: 02/07/2023]
Abstract
Impacts, traumas and strokes are spontaneously life-threatening, but chronic symptoms strangle patient every day. Colorectal tissue mechanics in such chronic situations not only regulates the physio-psychological well-being of the patient, but also confirms the level of comfort and post-operative clinical outcomes. Numerous uniaxial and multiaxial tensile experiments on healthy and affected samples have evidenced significant differences in tissue mechanical behavior and strong colorectal anisotropy across each layer in thickness direction and along the length. Furthermore, this study reviewed various forms of passive constitutive models for the highly fibrous colorectal tissue ranging from the simplest linearly elastic and the conventional isotropic hyperelastic to the most sophisticated second harmonic generation image based anisotropic mathematical formulation. Under large deformation, the isotropic description of tissue mechanics is unequivocally ineffective which demands a microstructural based tissue definition. Therefore, the information collected in this review paper would present the current state-of-the-art in colorectal biomechanics and profoundly serve as updated computational resources to develop a sophisticated characterization of colorectal tissues.
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Affiliation(s)
- Aroj Bhattarai
- Department of Orthopaedic Surgery, University of Saarland, Germany
| | | | - Thanh Ngoc Tran
- Department of Orthopaedic Surgery, University of Saarland, Germany.
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42
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He Z, Chen L, Catalan-Dibene J, Bongers G, Faith JJ, Suebsuwong C, DeVita RJ, Shen Z, Fox JG, Lafaille JJ, Furtado GC, Lira SA. Food colorants metabolized by commensal bacteria promote colitis in mice with dysregulated expression of interleukin-23. Cell Metab 2021; 33:1358-1371.e5. [PMID: 33989521 PMCID: PMC8266754 DOI: 10.1016/j.cmet.2021.04.015] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 02/26/2021] [Accepted: 04/20/2021] [Indexed: 12/26/2022]
Abstract
Both genetic predisposition and environmental factors appear to play a role in inflammatory bowel disease (IBD) development. Genetic studies in humans have linked the interleukin (IL)-23 signaling pathway with IBD, but the environmental factors contributing to disease have remained elusive. Here, we show that the azo dyes Red 40 and Yellow 6, the most abundant food colorants in the world, can trigger an IBD-like colitis in mice conditionally expressing IL-23, or in two additional animal models in which IL-23 expression was augmented. Increased IL-23 expression led to generation of activated CD4+ T cells that expressed interferon-γ and transferred disease to mice exposed to Red 40. Colitis induction was dependent on the commensal microbiota promoting the azo reduction of Red 40 and generation of a metabolite, 1-amino-2-naphthol-6-sulfonate sodium salt. Together these findings suggest that specific food colorants represent novel risk factors for development of colitis in mice with increased IL-23 signaling.
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Affiliation(s)
- Zhengxiang He
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Lili Chen
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Jovani Catalan-Dibene
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Gerold Bongers
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jeremiah J Faith
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Chalada Suebsuwong
- Drug Discovery Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Robert J DeVita
- Drug Discovery Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Zeli Shen
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - James G Fox
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Juan J Lafaille
- Department of Pathology, Skirball Institute of Biomolecular Medicine, New York University School of Medicine, New York, NY 10016, USA
| | - Glaucia C Furtado
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Sergio A Lira
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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Noviello D, Mager R, Roda G, Borroni RG, Fiorino G, Vetrano S. The IL23-IL17 Immune Axis in the Treatment of Ulcerative Colitis: Successes, Defeats, and Ongoing Challenges. Front Immunol 2021; 12:611256. [PMID: 34079536 PMCID: PMC8165319 DOI: 10.3389/fimmu.2021.611256] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 04/26/2021] [Indexed: 12/13/2022] Open
Abstract
Ulcerative colitis (UC) is a chronic relapsing disorder of the colonic tract, characterized by a dysregulated innate and adaptive immune response to gut microbiota that contributes to the perpetuation of intestinal inflammatory processes. The Interleukin (IL) 23/IL17 axis has been reported to play a key role in UC pathogenesis promoting Th17 cells and cytokines-related immune response. Recently, the blockade of IL23/IL17 pathways has been raised enormous interest in the treatment o several chronic inflammatory disorders. In this review, we summarize the emerging results from clinical trials that evoked both promise and discouragement in IL23/IL17 axis in the treatment of UC. Targeting IL23 p40 through Ustekinumab results safe and effective to induce and maintain clinical remission, low inflammatory indexes, mucosal healing, and a better quality of life. Studies targeting IL23 p19 through Mirikizumab, Risankizumab, Brazikumab and Guselkumab are still ongoing. To date, no clinical studies targeting IL17 pathway are ongoing in UC. IL-17 targeting is thought to have a context-dependent biological effect, based on whether cytokine is selectively targeted or if its function is dampened by the upstream block of IL23.
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MESH Headings
- Animals
- Antibodies, Monoclonal/pharmacology
- Antibodies, Monoclonal/therapeutic use
- Antibodies, Monoclonal, Humanized/pharmacology
- Antibodies, Monoclonal, Humanized/therapeutic use
- Colitis, Ulcerative/diagnosis
- Colitis, Ulcerative/drug therapy
- Colitis, Ulcerative/immunology
- Colitis, Ulcerative/metabolism
- Disease Management
- Disease Susceptibility
- Gastrointestinal Microbiome/drug effects
- Gastrointestinal Microbiome/immunology
- Humans
- Immunomodulation/drug effects
- Interleukin-17/metabolism
- Interleukin-23/metabolism
- Molecular Targeted Therapy
- Signal Transduction/drug effects
- Treatment Outcome
- Ustekinumab/pharmacology
- Ustekinumab/therapeutic use
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Affiliation(s)
- Daniele Noviello
- Institute of Life Sciences, Scuola Superiore Sant’Anna, Pisa, Italy
| | - Riccardo Mager
- Inflammatory Bowel Disease (IBD) Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center-IRCCS, Rozzano, Italy
| | - Giulia Roda
- Inflammatory Bowel Disease (IBD) Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center-IRCCS, Rozzano, Italy
- Inflammatory Bowel Disease (IBD) Center, Department of Gastroenterology, Humanitas Clinical and Research Center-IRCCS, Rozzano, Italy
| | - Riccardo G. Borroni
- Inflammatory Bowel Disease (IBD) Center, Department of Gastroenterology, Humanitas Clinical and Research Center-IRCCS, Rozzano, Italy
- Dermatology, Humanitas Clinical and Research Center-IRCCS, Rozzano, Italy
| | - Gionata Fiorino
- Inflammatory Bowel Disease (IBD) Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center-IRCCS, Rozzano, Italy
- Inflammatory Bowel Disease (IBD) Center, Department of Gastroenterology, Humanitas Clinical and Research Center-IRCCS, Rozzano, Italy
| | - Stefania Vetrano
- Inflammatory Bowel Disease (IBD) Center, Laboratory of Gastrointestinal Immunopathology, Humanitas Clinical and Research Center-IRCCS, Rozzano, Italy
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
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44
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Sienkiewicz M, Szymańska P, Fichna J. Supplementation of Bovine Colostrum in Inflammatory Bowel Disease: Benefits and Contraindications. Adv Nutr 2021; 12:533-545. [PMID: 33070186 PMCID: PMC8009748 DOI: 10.1093/advances/nmaa120] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/06/2020] [Accepted: 09/03/2020] [Indexed: 12/12/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a group of chronic relapsing disorders whose etiology has not been fully explained. Therefore, available therapeutic approaches for IBD patients are still insufficient. Current treatment strategies are targeted to immune system dysfunctions, often associated with alternations in the microbiota, which contribute to the development of chronic intestinal inflammation. Therapeutics include anti-inflammatory drugs such as aminosalicylates and corticosteroids, immunosuppressive agents, antibiotics, and biological agents such as infliximab and vedolizumab. Auxiliary therapies involve a balanced and personalized diet, healthy lifestyle, avoiding stress, as well as dietary supplements. In this review, we discuss the use of bovine colostrum (BC) as a therapeutic agent, including its advantages and contraindications. We summarize our knowledge on well-researched BC constituents and their effects on the gastrointestinal tract as evidenced in in vitro and in vivo studies.
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Affiliation(s)
- Michał Sienkiewicz
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Lodz, Poland
| | - Patrycja Szymańska
- Department of Hemostasis and Hemostatic Disorders, Faculty of Health Sciences, Medical University of Lodz, Lodz, Poland
| | - Jakub Fichna
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Lodz, Poland
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45
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Sommer K, Wiendl M, Müller TM, Heidbreder K, Voskens C, Neurath MF, Zundler S. Intestinal Mucosal Wound Healing and Barrier Integrity in IBD-Crosstalk and Trafficking of Cellular Players. Front Med (Lausanne) 2021; 8:643973. [PMID: 33834033 PMCID: PMC8021701 DOI: 10.3389/fmed.2021.643973] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 02/24/2021] [Indexed: 12/12/2022] Open
Abstract
The intestinal epithelial barrier is carrying out two major functions: restricting the entry of potentially harmful substances while on the other hand allowing the selective passage of nutrients. Thus, an intact epithelial barrier is vital to preserve the integrity of the host and to prevent development of disease. Vice versa, an impaired intestinal epithelial barrier function is a hallmark in the development and perpetuation of inflammatory bowel disease (IBD). Besides a multitude of genetic, molecular and cellular alterations predisposing for or driving barrier dysintegrity in IBD, the appearance of intestinal mucosal wounds is a characteristic event of intestinal inflammation apparently inducing breakdown of the intestinal epithelial barrier. Upon injury, the intestinal mucosa undergoes a wound healing process counteracting this breakdown, which is controlled by complex mechanisms such as epithelial restitution, proliferation and differentiation, but also immune cells like macrophages, granulocytes and lymphocytes. Consequently, the repair of mucosal wounds is dependent on a series of events including coordinated trafficking of immune cells to dedicated sites and complex interactions among the cellular players and other mediators involved. Therefore, a better understanding of the crosstalk between epithelial and immune cells as well as cell trafficking during intestinal wound repair is necessary for the development of improved future therapies. In this review, we summarize current concepts on intestinal mucosal wound healing introducing the main cellular mediators and their interplay as well as their trafficking characteristics, before finally discussing the clinical relevance and translational approaches to therapeutically target this process in a clinical setting.
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Affiliation(s)
- Katrin Sommer
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Maximilian Wiendl
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Tanja M Müller
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Karin Heidbreder
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Caroline Voskens
- Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, Erlangen, Germany
| | - Markus F Neurath
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, Erlangen, Germany
| | - Sebastian Zundler
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Deutsches Zentrum Immuntherapie (DZI), University Hospital Erlangen, Erlangen, Germany
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Plasmodium chabaudi Infection Alters Intestinal Morphology and Mucosal Innate Immunity in Moderately Malnourished Mice. Nutrients 2021; 13:nu13030913. [PMID: 33799736 PMCID: PMC7998862 DOI: 10.3390/nu13030913] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 03/06/2021] [Accepted: 03/08/2021] [Indexed: 12/29/2022] Open
Abstract
Plasmodium falciparum is a protozoan parasite which causes malarial disease in humans. Infections commonly occur in sub-Saharan Africa, a region with high rates of inadequate nutrient consumption resulting in malnutrition. The complex relationship between malaria and malnutrition and their effects on gut immunity and physiology are poorly understood. Here, we investigated the effect of malaria infection in the guts of moderately malnourished mice. We utilized a well-established low protein diet that is deficient in zinc and iron to induce moderate malnutrition and investigated mucosal tissue phenotype, permeability, and innate immune response in the gut. We observed that the infected moderately malnourished mice had lower parasite burden at the peak of infection, but damaged mucosal epithelial cells and high levels of FITC-Dextran concentration in the blood serum, indicating increased intestinal permeability. The small intestine in the moderately malnourished mice were also shorter after infection with malaria. This was accompanied with lower numbers of CD11b+ macrophages, CD11b+CD11c+ myeloid cells, and CD11c+ dendritic cells in large intestine. Despite the lower number of innate immune cells, macrophages in the moderately malnourished mice were highly activated as determined by MHCII expression and increased IFNγ production in the small intestine. Thus, our data suggest that malaria infection may exacerbate some of the abnormalities in the gut induced by moderate malnutrition.
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Fiechter RH, de Jong HM, van Mens LJJ, Fluri IA, Tas SW, Baeten DLP, Yeremenko NG, van de Sande MGH. IL-12p40/IL-23p40 Blockade With Ustekinumab Decreases the Synovial Inflammatory Infiltrate Through Modulation of Multiple Signaling Pathways Including MAPK-ERK and Wnt. Front Immunol 2021; 12:611656. [PMID: 33746955 PMCID: PMC7971179 DOI: 10.3389/fimmu.2021.611656] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 02/08/2021] [Indexed: 12/12/2022] Open
Abstract
Background: Psoriatic arthritis (PsA) is a chronic inflammatory joint disease within the spondyloarthritis spectrum. IL-12p40/IL-23p40 blockade reduces PsA disease activity, but its impact on synovial inflammation remains unclear. Objectives: To investigate the cellular and molecular pathways affected by IL-12p40/IL-23p40 blockade with ustekinumab in the synovium of PsA patients. Methods: Eleven PsA patients with at least one inflamed knee or ankle joint were included in a 24-week single-center open-label study and received ustekinumab 45 mg/sc according to standard care at week 0, 4, and 16. Besides clinical outcomes, synovial tissue (ST) samples were obtained by needle arthroscopy from an inflamed knee or ankle joint at baseline, week 12 and 24 and analyzed by immunohistochemistry, RNA-sequencing and real-time quantitative polymerase chain reaction (qPCR). Results: We obtained paired baseline and week 12, and paired baseline, week 12 and 24 ST samples from nine and six patients, respectively. Eight patients completed 24 weeks of clinical follow-up. At 12 weeks 6/11 patients met ACR20, 2/11 met ACR50 and 1/11 met ACR70 improvement criteria, at 24 weeks this was 3/8, 2/8 and 1/8 patients, respectively. Clinical and serological markers improved significantly. No serious adverse events occurred. We observed numerical decreases of all infiltrating cell subtypes at week 12, reaching statistical significance for CD68+ sublining macrophages. For some cell types this was even more pronounced at week 24, but clearly synovial inflammation was incompletely resolved. IL-17A and F, TNF, IL-6, IL-8, and IL-12p40 were not significantly downregulated in qPCR analysis of W12 total biopsies, only MMP3 and IL-23p19 were significantly decreased. RNA-seq analysis revealed 178 significantly differentially expressed genes between baseline and 12 weeks (FDR 0.1). Gene Ontology and KEGG terms enrichment analyses identified overrepresentation of biological processes as response to reactive oxygen species, chemotaxis, migration and angiogenesis as well as MAPK-ERK and PI3K-Akt signaling pathways among the downregulated genes and of Wnt signaling pathway among the upregulated genes. Furthermore, ACR20 responders and non-responders differed strikingly in gene expression profiles in a post-hoc exploratory analysis. Conclusions: Ustekinumab suppresses PsA synovial inflammation through modulation of multiple signal transduction pathways, including MAPK-ERK, Wnt and potentially PI3K-Akt signaling rather than by directly impacting the IL-17 pathway.
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Affiliation(s)
- Renée H Fiechter
- Amsterdam UMC, Department of Rheumatology and Clinical Immunology, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Amsterdam UMC, Department of Experimental Immunology, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Amsterdam Rheumatology and Immunology Center, Amsterdam, Netherlands
| | - Henriëtte M de Jong
- Amsterdam UMC, Department of Rheumatology and Clinical Immunology, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Amsterdam UMC, Department of Experimental Immunology, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Amsterdam Rheumatology and Immunology Center, Amsterdam, Netherlands
| | - Leonieke J J van Mens
- Amsterdam UMC, Department of Rheumatology and Clinical Immunology, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Amsterdam UMC, Department of Experimental Immunology, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Amsterdam Rheumatology and Immunology Center, Amsterdam, Netherlands
| | - Inka A Fluri
- Amsterdam UMC, Department of Rheumatology and Clinical Immunology, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Amsterdam UMC, Department of Experimental Immunology, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Amsterdam Rheumatology and Immunology Center, Amsterdam, Netherlands
| | - Sander W Tas
- Amsterdam UMC, Department of Rheumatology and Clinical Immunology, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Amsterdam UMC, Department of Experimental Immunology, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Amsterdam Rheumatology and Immunology Center, Amsterdam, Netherlands
| | - Dominique L P Baeten
- Amsterdam UMC, Department of Rheumatology and Clinical Immunology, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Amsterdam UMC, Department of Experimental Immunology, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Amsterdam Rheumatology and Immunology Center, Amsterdam, Netherlands
| | - Nataliya G Yeremenko
- Amsterdam UMC, Department of Rheumatology and Clinical Immunology, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Amsterdam UMC, Department of Experimental Immunology, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Amsterdam Rheumatology and Immunology Center, Amsterdam, Netherlands
| | - Marleen G H van de Sande
- Amsterdam UMC, Department of Rheumatology and Clinical Immunology, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Amsterdam UMC, Department of Experimental Immunology, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Amsterdam, Netherlands.,Amsterdam Rheumatology and Immunology Center, Amsterdam, Netherlands
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48
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Chen H, Chen L, Wang X, Ge X, Sun L, Wang Z, Xu X, Song Y, Chen J, Deng Q, Xie H, Chen T, Chen Y, Ding K, Wu J, Wang J. Transgenic overexpression of ITGB6 in intestinal epithelial cells exacerbates dextran sulfate sodium-induced colitis in mice. J Cell Mol Med 2021; 25:2679-2690. [PMID: 33491282 PMCID: PMC7933932 DOI: 10.1111/jcmm.16297] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 12/13/2020] [Accepted: 01/09/2021] [Indexed: 12/16/2022] Open
Abstract
Integrins, as a large family of cell adhesion molecules, play a crucial role in maintaining intestinal homeostasis. In inflammatory bowel disease (IBD), homeostasis is disrupted. Integrin αvβ6, which is mainly regulated by the integrin β6 subunit gene (ITGB6), is a cell adhesion molecule that mediates cell-cell and cell-matrix interactions. However, the role of ITGB6 in the pathogenesis of IBD remains elusive. In this study, we found that ITGB6 was markedly upregulated in inflamed intestinal tissues from patients with IBD. Then, we generated an intestinal epithelial cell-specific ITGB6 transgenic mouse model. Conditional ITGB6 transgene expression exacerbated experimental colitis in mouse models of acute and chronic dextran sulphate sodium (DSS)-induced colitis. Survival analyses revealed that ITGB6 transgene expression correlated with poor prognosis in DSS-induced colitis. Furthermore, our data indicated that ITGB6 transgene expression increased macrophages infiltration, pro-inflammatory cytokines secretion, integrin ligands expression and Stat1 signalling pathway activation. Collectively, our findings revealed a previously unknown role of ITGB6 in IBD and highlighted the possibility of ITGB6 as a diagnostic marker and therapeutic target for IBD.
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Affiliation(s)
- Haiyan Chen
- Department of Colorectal Surgery and OncologyKey Laboratory of Cancer Prevention and InterventionMinistry of EducationThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Department of Radiation OncologyKey Laboratory of Cancer Prevention and InterventionMinistry of EducationThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Liubo Chen
- Department of Colorectal Surgery and OncologyKey Laboratory of Cancer Prevention and InterventionMinistry of EducationThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Xin Wang
- Department of Pathology & Pathophysiology, and Department of Colorectal Surgery of the Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Xiaoxu Ge
- Department of Colorectal Surgery and OncologyKey Laboratory of Cancer Prevention and InterventionMinistry of EducationThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Lifeng Sun
- Department of Colorectal Surgery and OncologyKey Laboratory of Cancer Prevention and InterventionMinistry of EducationThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Zhanhuai Wang
- Department of Colorectal Surgery and OncologyKey Laboratory of Cancer Prevention and InterventionMinistry of EducationThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Center for Inflammatory Bowel DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Xiaoming Xu
- Center for Inflammatory Bowel DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Department of PathologyThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Yongmao Song
- Department of Colorectal Surgery and OncologyKey Laboratory of Cancer Prevention and InterventionMinistry of EducationThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Center for Inflammatory Bowel DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Jing Chen
- Department of Colorectal Surgery and OncologyKey Laboratory of Cancer Prevention and InterventionMinistry of EducationThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Qun Deng
- Department of Colorectal Surgery and OncologyKey Laboratory of Cancer Prevention and InterventionMinistry of EducationThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Center for Inflammatory Bowel DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Haiting Xie
- Department of Colorectal Surgery and OncologyKey Laboratory of Cancer Prevention and InterventionMinistry of EducationThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Center for Inflammatory Bowel DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Ting Chen
- Key Laboratory of Cancer Prevention and InterventionMinistry of EducationThe Second Affiliated HospitalCancer InstituteZhejiang University School of MedicineHangzhouChina
| | - Yan Chen
- Center for Inflammatory Bowel DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Kefeng Ding
- Department of Colorectal Surgery and OncologyKey Laboratory of Cancer Prevention and InterventionMinistry of EducationThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Center for Inflammatory Bowel DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Jingjing Wu
- Department of Pathology & Pathophysiology, and Department of Colorectal Surgery of the Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Jian Wang
- Department of Colorectal Surgery and OncologyKey Laboratory of Cancer Prevention and InterventionMinistry of EducationThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Center for Inflammatory Bowel DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
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STING negatively regulates allogeneic T-cell responses by constraining antigen-presenting cell function. Cell Mol Immunol 2021; 18:632-643. [PMID: 33500563 PMCID: PMC8027033 DOI: 10.1038/s41423-020-00611-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 11/26/2020] [Indexed: 01/30/2023] Open
Abstract
Stimulator of interferon genes (STING)-mediated innate immune activation plays a key role in tumor- and self-DNA-elicited antitumor immunity and autoimmunity. However, STING can also suppress tumor immunity and autoimmunity. STING signaling in host nonhematopoietic cells was reported to either protect against or promote graft-versus-host disease (GVHD), a major complication of allogeneic hematopoietic cell transplantation (allo-HCT). Host hematopoietic antigen-presenting cells (APCs) play key roles in donor T-cell priming during GVHD initiation. However, how STING regulates host hematopoietic APCs after allo-HCT remains unknown. We utilized murine models of allo-HCT to assess the role of STING in hematopoietic APCs. STING-deficient recipients developed more severe GVHD after major histocompatibility complex-mismatched allo-HCT. Using bone marrow chimeras, we found that STING deficiency in host hematopoietic cells was primarily responsible for exacerbating the disease. Furthermore, STING on host CD11c+ cells played a dominant role in suppressing allogeneic T-cell responses. Mechanistically, STING deficiency resulted in increased survival, activation, and function of APCs, including macrophages and dendritic cells. Consistently, constitutive activation of STING attenuated the survival, activation, and function of APCs isolated from STING V154M knock-in mice. STING-deficient APCs augmented donor T-cell expansion, chemokine receptor expression, and migration into intestinal tissues, resulting in accelerated/exacerbated GVHD. Using pharmacologic approaches, we demonstrated that systemic administration of a STING agonist (bis-(3'-5')-cyclic dimeric guanosine monophosphate) to recipient mice before transplantation significantly reduced GVHD mortality. In conclusion, we revealed a novel role of STING in APC activity that dictates T-cell allogeneic responses and validated STING as a potential therapeutic target for controlling GVHD after allo-HCT.
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50
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Suarez-Lopez L, Kong YW, Sriram G, Patterson JC, Rosenberg S, Morandell S, Haigis KM, Yaffe MB. MAPKAP Kinase-2 Drives Expression of Angiogenic Factors by Tumor-Associated Macrophages in a Model of Inflammation-Induced Colon Cancer. Front Immunol 2021; 11:607891. [PMID: 33708191 PMCID: PMC7940202 DOI: 10.3389/fimmu.2020.607891] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 12/30/2020] [Indexed: 12/24/2022] Open
Abstract
Chronic inflammation increases the risk for colorectal cancer through a variety of mechanisms involving the tumor microenvironment. MAPK-activated protein kinase 2 (MK2), a major effector of the p38 MAPK stress and DNA damage response signaling pathway, and a critical regulator of pro-inflammatory cytokine production, has been identified as a key contributor to colon tumorigenesis under conditions of chronic inflammation. We have previously described how genetic inactivation of MK2 in an inflammatory model of colon cancer results in delayed tumor progression, decreased tumor angiogenesis, and impaired macrophage differentiation into a pro-tumorigenic M2-like state. The molecular mechanism responsible for the impaired angiogenesis and tumor progression, however, has remained contentious and poorly defined. Here, using RNA expression analysis, assays of angiogenesis factors, genetic models, in vivo macrophage depletion and reconstitution of macrophage MK2 function using adoptive cell transfer, we demonstrate that MK2 activity in macrophages is necessary and sufficient for tumor angiogenesis during inflammation-induced cancer progression. We identify a critical and previously unappreciated role for MK2-dependent regulation of the well-known pro-angiogenesis factor CXCL-12/SDF-1 secreted by tumor associated-macrophages, in addition to MK2-dependent regulation of Serpin-E1/PAI-1 by several cell types within the tumor microenvironment.
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Affiliation(s)
- Lucia Suarez-Lopez
- Center for Precision Cancer Medicine, Koch Institute for Integrated Cancer Research and Departments of Biological Engineering and Biology, Massachusetts Institute of Technology, Cambridge, MA, United States
- Department of Cancer Biology, Dana Farber Cancer Institute, Boston, MA, United States
| | - Yi Wen Kong
- Center for Precision Cancer Medicine, Koch Institute for Integrated Cancer Research and Departments of Biological Engineering and Biology, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Ganapathy Sriram
- Center for Precision Cancer Medicine, Koch Institute for Integrated Cancer Research and Departments of Biological Engineering and Biology, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Jesse C. Patterson
- Center for Precision Cancer Medicine, Koch Institute for Integrated Cancer Research and Departments of Biological Engineering and Biology, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Samantha Rosenberg
- Center for Precision Cancer Medicine, Koch Institute for Integrated Cancer Research and Departments of Biological Engineering and Biology, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Sandra Morandell
- Center for Precision Cancer Medicine, Koch Institute for Integrated Cancer Research and Departments of Biological Engineering and Biology, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Kevin M. Haigis
- Department of Cancer Biology, Dana Farber Cancer Institute, Boston, MA, United States
| | - Michael B. Yaffe
- Center for Precision Cancer Medicine, Koch Institute for Integrated Cancer Research and Departments of Biological Engineering and Biology, Massachusetts Institute of Technology, Cambridge, MA, United States
- Divisions of Acute Care Surgery, Trauma and Surgical Critical Care, and Surgical Oncology, Department of Surgery, Beth Israel Deaconess Medical Center, Boston, MA, United States
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