1
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Peng HR, Qiu JQ, Zhou QM, Zhang YK, Chen QY, Yin YQ, Su W, Yu S, Wang YT, Cai Y, Gu MN, Zhang HH, Sun QQ, Hu G, Wu YW, Liu J, Chen S, Zhu ZJ, Song XY, Zhou JW. Intestinal epithelial dopamine receptor signaling drives sex-specific disease exacerbation in a mouse model of multiple sclerosis. Immunity 2023; 56:2773-2789.e8. [PMID: 37992711 DOI: 10.1016/j.immuni.2023.10.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 08/22/2023] [Accepted: 10/27/2023] [Indexed: 11/24/2023]
Abstract
Although the gut microbiota can influence central nervous system (CNS) autoimmune diseases, the contribution of the intestinal epithelium to CNS autoimmunity is less clear. Here, we showed that intestinal epithelial dopamine D2 receptors (IEC DRD2) promoted sex-specific disease progression in an animal model of multiple sclerosis. Female mice lacking Drd2 selectively in intestinal epithelial cells showed a blunted inflammatory response in the CNS and reduced disease progression. In contrast, overexpression or activation of IEC DRD2 by phenylethylamine administration exacerbated disease severity. This was accompanied by altered lysozyme expression and gut microbiota composition, including reduced abundance of Lactobacillus species. Furthermore, treatment with N2-acetyl-L-lysine, a metabolite derived from Lactobacillus, suppressed microglial activation and neurodegeneration. Taken together, our study indicates that IEC DRD2 hyperactivity impacts gut microbial abundances and increases susceptibility to CNS autoimmune diseases in a female-biased manner, opening up future avenues for sex-specific interventions of CNS autoimmune diseases.
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Affiliation(s)
- Hai-Rong Peng
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China; School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jia-Qian Qiu
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China; Shanghai Key Laboratory of Aging Studies, Shanghai 201210, China
| | - Qin-Ming Zhou
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yu-Kai Zhang
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Qiao-Yu Chen
- Department of Pharmacology, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Yan-Qing Yin
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Wen Su
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Shui Yu
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Ya-Ting Wang
- State Key Laboratory of Cell Biology, Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Yuping Cai
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China; Shanghai Key Laboratory of Aging Studies, Shanghai 201210, China
| | - Ming-Na Gu
- Department of Pharmacology, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Hao-Hao Zhang
- State Key Laboratory of Cell Biology, Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Qing-Qing Sun
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Gang Hu
- Department of Pharmacology, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
| | - Yi-Wen Wu
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Jun Liu
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Sheng Chen
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
| | - Zheng-Jiang Zhu
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China; Shanghai Key Laboratory of Aging Studies, Shanghai 201210, China.
| | - Xin-Yang Song
- State Key Laboratory of Cell Biology, Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China.
| | - Jia-Wei Zhou
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China; School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, China; Shanghai Center for Brain Science and Brain-Inspired Intelligence Technology, Shanghai 201210, China; Innovation Center of Neurodegeneration, School of Medicine, Nantong University, Nantong, Jiangsu 226001, China.
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2
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Ansari I, Solé-Boldo L, Ridnik M, Gutekunst J, Gilliam O, Korshko M, Liwinski T, Jickeli B, Weinberg-Corem N, Shoshkes-Carmel M, Pikarsky E, Elinav E, Lyko F, Bergman Y. TET2 and TET3 loss disrupts small intestine differentiation and homeostasis. Nat Commun 2023; 14:4005. [PMID: 37414790 PMCID: PMC10326054 DOI: 10.1038/s41467-023-39512-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/07/2023] [Indexed: 07/08/2023] Open
Abstract
TET2/3 play a well-known role in epigenetic regulation and mouse development. However, their function in cellular differentiation and tissue homeostasis remains poorly understood. Here we show that ablation of TET2/3 in intestinal epithelial cells results in a murine phenotype characterized by a severe homeostasis imbalance in the small intestine. Tet2/3-deleted mice show a pronounced loss of mature Paneth cells as well as fewer Tuft and more Enteroendocrine cells. Further results show major changes in DNA methylation at putative enhancers, which are associated with cell fate-determining transcription factors and functional effector genes. Notably, pharmacological inhibition of DNA methylation partially rescues the methylation and cellular defects. TET2/3 loss also alters the microbiome, predisposing the intestine to inflammation under homeostatic conditions and acute inflammation-induced death. Together, our results uncover previously unrecognized critical roles for DNA demethylation, possibly occurring subsequently to chromatin opening during intestinal development, culminating in the establishment of normal intestinal crypts.
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Affiliation(s)
- Ihab Ansari
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, Hebrew University Medical School, Jerusalem, Israel
| | - Llorenç Solé-Boldo
- Division of Epigenetics, DKFZ-ZMBH Alliance, German Cancer Research Center, Heidelberg, Germany
| | - Meshi Ridnik
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, Hebrew University Medical School, Jerusalem, Israel
| | - Julian Gutekunst
- Division of Epigenetics, DKFZ-ZMBH Alliance, German Cancer Research Center, Heidelberg, Germany
| | - Oliver Gilliam
- Division of Epigenetics, DKFZ-ZMBH Alliance, German Cancer Research Center, Heidelberg, Germany
| | - Maria Korshko
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, Hebrew University Medical School, Jerusalem, Israel
| | - Timur Liwinski
- Department of Immunology, The Weizmann Institute of Science, Rehovot, Israel
- University Psychiatric Clinics Basel, Clinic for Adults, University of Basel, Basel, Switzerland
| | - Birgit Jickeli
- Department of Immunology, The Weizmann Institute of Science, Rehovot, Israel
| | - Noa Weinberg-Corem
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, Hebrew University Medical School, Jerusalem, Israel
| | - Michal Shoshkes-Carmel
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, Hebrew University Medical School, Jerusalem, Israel
| | - Eli Pikarsky
- The Lautenberg Center for Immunology, Institute for Medical Research Israel-Canada, Hebrew University Medical School, Jerusalem, Israel
| | - Eran Elinav
- Department of Immunology, The Weizmann Institute of Science, Rehovot, Israel
- Division of Microbiome and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Frank Lyko
- Division of Epigenetics, DKFZ-ZMBH Alliance, German Cancer Research Center, Heidelberg, Germany
| | - Yehudit Bergman
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, Hebrew University Medical School, Jerusalem, Israel.
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3
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Song R, McAlpine W, Fond AM, Nair-Gill E, Choi JH, Nyström EEL, Arike L, Field S, Li X, SoRelle JA, Moresco JJ, Moresco EMY, Yates JR, Azadi P, Ni J, Birchenough GMH, Beutler B, Turer EE. Trans-Golgi protein TVP23B regulates host-microbe interactions via Paneth cell homeostasis and Goblet cell glycosylation. Nat Commun 2023; 14:3652. [PMID: 37339972 PMCID: PMC10282085 DOI: 10.1038/s41467-023-39398-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 06/09/2023] [Indexed: 06/22/2023] Open
Abstract
A key feature in intestinal immunity is the dynamic intestinal barrier, which separates the host from resident and pathogenic microbiota through a mucus gel impregnated with antimicrobial peptides. Using a forward genetic screen, we have found a mutation in Tvp23b, which conferred susceptibility to chemically induced and infectious colitis. Trans-Golgi apparatus membrane protein TVP23 homolog B (TVP23B) is a transmembrane protein conserved from yeast to humans. We found that TVP23B controls the homeostasis of Paneth cells and function of goblet cells, leading to a decrease in antimicrobial peptides and more penetrable mucus layer. TVP23B binds with another Golgi protein, YIPF6, which is similarly critical for intestinal homeostasis. The Golgi proteomes of YIPF6 and TVP23B-deficient colonocytes have a common deficiency of several critical glycosylation enzymes. TVP23B is necessary for the formation of the sterile mucin layer of the intestine and its absence disturbs the balance of host and microbe in vivo.
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Affiliation(s)
- Ran Song
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX, 75390-8505, USA
| | - William McAlpine
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX, 75390-8505, USA
| | - Aaron M Fond
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX, 75390-8505, USA
- Department of Internal Medicine, Division of Gastroenterology, University of Texas Southwestern Medical Center, Dallas, TX, 75390-8505, USA
| | - Evan Nair-Gill
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX, 75390-8505, USA
| | - Jin Huk Choi
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX, 75390-8505, USA
| | - Elisabeth E L Nyström
- Institute of Biochemistry, University of Kiel, 24118, Kiel, Schleswig-Holstein, Germany
| | - Liisa Arike
- The Wallenberg Centre for Molecular & Translational Medicine, Department of Medical Biochemistry, Institute of Biomedicine, University of Gothenburg, 40530, Gothenburg, Sweden
| | - Sydney Field
- Department of Internal Medicine, Division of Gastroenterology, University of Texas Southwestern Medical Center, Dallas, TX, 75390-8505, USA
| | - Xiaohong Li
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX, 75390-8505, USA
| | - Jeffrey A SoRelle
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX, 75390-8505, USA
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, 75390-8505, USA
| | - James J Moresco
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX, 75390-8505, USA
| | - Eva Marie Y Moresco
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX, 75390-8505, USA
| | - John R Yates
- Department of Molecular Medicine, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Parastoo Azadi
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, 30602, USA
| | - Josephine Ni
- Department of Internal Medicine, Division of Gastroenterology, University of Texas Southwestern Medical Center, Dallas, TX, 75390-8505, USA
| | - George M H Birchenough
- The Wallenberg Centre for Molecular & Translational Medicine, Department of Medical Biochemistry, Institute of Biomedicine, University of Gothenburg, 40530, Gothenburg, Sweden
| | - Bruce Beutler
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX, 75390-8505, USA
| | - Emre E Turer
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX, 75390-8505, USA.
- Department of Internal Medicine, Division of Gastroenterology, University of Texas Southwestern Medical Center, Dallas, TX, 75390-8505, USA.
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4
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Fung C, Fraser L, Barrón G, Gologorsky M, Atkinson S, Gerrick E, Hayward M, Ziegelbauer J, Li J, Nico K, Tyner M, DeSchepper L, Pan A, Salzman N, Howitt M. Tuft cells mediate commensal remodeling of the small intestinal antimicrobial landscape. Proc Natl Acad Sci U S A 2023; 120:e2216908120. [PMID: 37253002 PMCID: PMC10266004 DOI: 10.1073/pnas.2216908120] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 04/19/2023] [Indexed: 06/01/2023] Open
Abstract
Succinate produced by the commensal protist Tritrichomonas musculis (T. mu) stimulates chemosensory tuft cells, resulting in intestinal type 2 immunity. Tuft cells express the succinate receptor SUCNR1, yet this receptor does not mediate antihelminth immunity nor alter protist colonization. Here, we report that microbial-derived succinate increases Paneth cell numbers and profoundly alters the antimicrobial peptide (AMP) landscape in the small intestine. Succinate was sufficient to drive this epithelial remodeling, but not in mice lacking tuft cell chemosensory components required to detect this metabolite. Tuft cells respond to succinate by stimulating type 2 immunity, leading to interleukin-13-mediated epithelial and AMP expression changes. Moreover, type 2 immunity decreases the total number of mucosa-associated bacteria and alters the small intestinal microbiota composition. Finally, tuft cells can detect short-term bacterial dysbiosis that leads to a spike in luminal succinate levels and modulate AMP production in response. These findings demonstrate that a single metabolite produced by commensals can markedly shift the intestinal AMP profile and suggest that tuft cells utilize SUCNR1 and succinate sensing to modulate bacterial homeostasis.
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Affiliation(s)
- Connie Fung
- Department of Pathology, Stanford University School of Medicine, Stanford, CA94305
| | - Lisa M. Fraser
- Division of Gastroenterology, Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI53226
| | - Gabriel M. Barrón
- Department of Pathology, Stanford University School of Medicine, Stanford, CA94305
- Program in Immunology, Stanford University School of Medicine, Stanford, CA94305
| | | | - Samantha N. Atkinson
- Department of Microbiology and Immunology, Center for Microbiome Research, Medical College of Wisconsin, Milwaukee, WI53226
| | - Elias R. Gerrick
- Department of Pathology, Stanford University School of Medicine, Stanford, CA94305
| | - Michael Hayward
- Division of Gastroenterology, Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI53226
- Department of Microbiology and Immunology, Center for Microbiome Research, Medical College of Wisconsin, Milwaukee, WI53226
| | - Jennifer Ziegelbauer
- Department of Microbiology and Immunology, Center for Microbiome Research, Medical College of Wisconsin, Milwaukee, WI53226
| | - Jessica A. Li
- Department of Pathology, Stanford University School of Medicine, Stanford, CA94305
| | - Katherine F. Nico
- Department of Pathology, Stanford University School of Medicine, Stanford, CA94305
- Program in Immunology, Stanford University School of Medicine, Stanford, CA94305
| | - Miles D. W. Tyner
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA94305
| | - Leila B. DeSchepper
- Department of Pathology, Stanford University School of Medicine, Stanford, CA94305
| | - Amy Pan
- Department of Microbiology and Immunology, Center for Microbiome Research, Medical College of Wisconsin, Milwaukee, WI53226
- Division of Quantitative Health Services, Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI53226
| | - Nita H. Salzman
- Division of Gastroenterology, Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI53226
- Department of Microbiology and Immunology, Center for Microbiome Research, Medical College of Wisconsin, Milwaukee, WI53226
| | - Michael R. Howitt
- Department of Pathology, Stanford University School of Medicine, Stanford, CA94305
- Program in Immunology, Stanford University School of Medicine, Stanford, CA94305
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA94305
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5
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Liu Y, Yu Z, Zhu L, Ma S, Luo Y, Liang H, Liu Q, Chen J, Guli S, Chen X. Orchestration of MUC2 - The key regulatory target of gut barrier and homeostasis: A review. Int J Biol Macromol 2023; 236:123862. [PMID: 36870625 DOI: 10.1016/j.ijbiomac.2023.123862] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 02/22/2023] [Accepted: 02/24/2023] [Indexed: 03/06/2023]
Abstract
The gut mucosa of human is covered by mucus, functioning as a crucial defense line for the intestine against external stimuli and pathogens. Mucin2 (MUC2) is a subtype of secretory mucins generated by goblet cells and is the major macromolecular component of mucus. Currently, there is an increasing interest on the investigations of MUC2, noting that its function is far beyond a maintainer of the mucus barrier. Moreover, numerous gut diseases are associated with dysregulated MUC2 production. Appropriate production level of MUC2 and mucus contributes to gut barrier function and homeostasis. The production of MUC2 is regulated by a series of physiological processes, which are orchestrated by various bioactive molecules, signaling pathways and gut microbiota, etc., forming a complex regulatory network. Incorporating the latest findings, this review provided a comprehensive summary of MUC2, including its structure, significance and secretory process. Furthermore, we also summarized the molecular mechanisms of the regulation of MUC2 production aiming to provide developmental directions for future researches on MUC2, which can act as a potential prognostic indicator and targeted therapeutic manipulation for diseases. Collectively, we elucidated the micro-level mechanisms underlying MUC2-related phenotypes, hoping to offer some constructive guidance for intestinal and overall health of mankind.
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Affiliation(s)
- Yaxin Liu
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Zihan Yu
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Lanping Zhu
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Shuang Ma
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Yang Luo
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Huixi Liang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Qinlingfei Liu
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Jihua Chen
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Sitan Guli
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China
| | - Xin Chen
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China; Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Anshan Road 154, Heping District, Tianjin 300052, China.
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6
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Dolan B, Ermund A, Martinez-Abad B, Johansson ME, Hansson GC. Clearance of small intestinal crypts involves goblet cell mucus secretion by intracellular granule rupture and enterocyte ion transport. Sci Signal 2022; 15:eabl5848. [PMID: 36126118 PMCID: PMC9749883 DOI: 10.1126/scisignal.abl5848] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Goblet cells in the small intestinal crypts contain large numbers of mucin granules that are rapidly discharged to clean bacteria from the crypt. Because acetylcholine released by neuronal and nonneuronal cells controls many aspects of intestinal epithelial function, we used tissue explants and organoids to investigate the response of the small intestinal crypt to cholinergic stimulation. The activation of muscarinic acetylcholine receptors initiated a coordinated and rapid emptying of crypt goblet cells that flushed the crypt contents into the intestinal lumen. Cholinergic stimulation induced an expansion of the granule contents followed by intracellular rupture of the mucin granules. The mucus expanded intracellularly before the rupture of the goblet cell apical membrane and continued to expand after its release into the crypt lumen. The goblet cells recovered from membrane rupture and replenished their stores of mucin granules. Mucus secretion from the goblet cells depended on Ca2+ signaling and the expansion of the mucus in the crypt depended on gap junctions and on ion and water transport by enterocytes adjacent to the goblet cells. This distinctive mode of mucus secretion, which we refer to as "expanding secretion," efficiently cleans the small intestine crypt through coordinated mucus, ion, and fluid secretion by goblet cells and enterocytes.
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Affiliation(s)
- Brendan Dolan
- Department of Medical Biochemistry and Cell Biology, University of
Gothenburg, 405 30 Gothenburg, Sweden
| | - Anna Ermund
- Department of Medical Biochemistry and Cell Biology, University of
Gothenburg, 405 30 Gothenburg, Sweden
| | - Beatriz Martinez-Abad
- Department of Medical Biochemistry and Cell Biology, University of
Gothenburg, 405 30 Gothenburg, Sweden
| | - Malin E.V. Johansson
- Department of Medical Biochemistry and Cell Biology, University of
Gothenburg, 405 30 Gothenburg, Sweden
| | - Gunnar C. Hansson
- Department of Medical Biochemistry and Cell Biology, University of
Gothenburg, 405 30 Gothenburg, Sweden
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7
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Algrain M, Hennebert E, Bertemes P, Wattiez R, Flammang P, Lengerer B. In the footsteps of sea stars: deciphering the catalogue of proteins involved in underwater temporary adhesion. Open Biol 2022; 12:220103. [PMID: 35975651 PMCID: PMC9382459 DOI: 10.1098/rsob.220103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Sea stars adhere strongly but temporarily to underwater substrata via the secretion of a blend of proteins, forming an adhesive footprint that they leave on the surface after detachment. Their tube feet enclose a duo-gland adhesive system comprising two types of adhesive cells, contributing different layers of the footprint and de-adhesive cells. In this study, we characterized the catalogue of sea star footprint proteins (Sfps) in the species Asterias rubens to gain insights in their potential function. We identified 16 Sfps and mapped their expression to type 1 and/or type 2 adhesive cells or to de-adhesive cells by double fluorescent in situ hybridization. Based on their cellular expression pattern and their conserved functional domains, we propose that the identified Sfps serve different functions during attachment, with two Sfps coupling to the surface, six providing cohesive strength and the rest forming a binding matrix. Immunolabelling of footprints with antibodies directed against one protein of each category confirmed these roles. A de-adhesive gland cell-specific astacin-like proteinase presumably weakens the bond between the adhesive material and the tube foot surface during detachment. Overall, we provide a model for temporary adhesion in sea stars, including a comprehensive list of the proteins involved.
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Affiliation(s)
- Morgane Algrain
- Laboratory of Biology of Marine Organisms and Biomimetics, Research Institute for Biosciences, University of Mons, Place du Parc 23, Mons 7000, Belgium
| | - Elise Hennebert
- Laboratory of Cell Biology, Research Institute for Biosciences, University of Mons, Place du Parc 23, Mons 7000, Belgium
| | - Philip Bertemes
- Institute of Zoology and Center of Molecular Biosciences, University of Innsbruck, 6020 Innsbruck, Technikerstr. 25, Innsbruck 6020, Austria
| | - Ruddy Wattiez
- Laboratory of Proteomics and Microbiology, Research Institute for Biosciences, University of Mons, Place du Parc 23, Mons 7000, Belgium
| | - Patrick Flammang
- Laboratory of Biology of Marine Organisms and Biomimetics, Research Institute for Biosciences, University of Mons, Place du Parc 23, Mons 7000, Belgium
| | - Birgit Lengerer
- Institute of Zoology and Center of Molecular Biosciences, University of Innsbruck, 6020 Innsbruck, Technikerstr. 25, Innsbruck 6020, Austria
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8
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Herselman MF, Bailey S, Bobrovskaya L. The Effects of Stress and Diet on the "Brain-Gut" and "Gut-Brain" Pathways in Animal Models of Stress and Depression. Int J Mol Sci 2022; 23:ijms23042013. [PMID: 35216133 PMCID: PMC8875876 DOI: 10.3390/ijms23042013] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 02/07/2023] Open
Abstract
Compelling evidence is building for the involvement of the complex, bidirectional communication axis between the gastrointestinal tract and the brain in neuropsychiatric disorders such as depression. With depression projected to be the number one health concern by 2030 and its pathophysiology yet to be fully elucidated, a comprehensive understanding of the interactions between environmental factors, such as stress and diet, with the neurobiology of depression is needed. In this review, the latest research on the effects of stress on the bidirectional connections between the brain and the gut across the most widely used animal models of stress and depression is summarised, followed by comparisons of the diversity and composition of the gut microbiota across animal models of stress and depression with possible implications for the gut–brain axis and the impact of dietary changes on these. The composition of the gut microbiota was consistently altered across the animal models investigated, although differences between each of the studies and models existed. Chronic stressors appeared to have negative effects on both brain and gut health, while supplementation with prebiotics and/or probiotics show promise in alleviating depression pathophysiology.
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9
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McGillis L, Bronte-Tinkew DM, Dang F, Capurro M, Prashar A, Ricciuto A, Greenfield L, Lozano-Ruf A, Siddiqui I, Hsieh A, Church P, Walters T, Roth DE, Griffiths A, Philpott D, Jones NL. Vitamin D deficiency enhances expression of autophagy-regulating miR-142-3p in mouse and "involved" IBD patient intestinal tissues. Am J Physiol Gastrointest Liver Physiol 2021; 321:G171-G184. [PMID: 34159811 DOI: 10.1152/ajpgi.00398.2020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Vitamin D deficiency is an environmental factor involved in the pathogenesis of inflammatory bowel disease (IBD); however, the mechanisms surrounding its role remain unclear. Previous studies conducted in an intestinal epithelial-specific vitamin D receptor (VDR) knockout model suggest that a lack of vitamin D signaling causes a reduction in intestinal autophagy. A potential link between vitamin D deficiency and dysregulated autophagy is microRNA (miR)-142-3p, which suppresses autophagy. In this study, we found that wild-type C57BL/6 mice fed a vitamin D-deficient diet for 5 wk had increased miR-142-3p expression in ileal tissues compared with mice that were fed a matched control diet. Interestingly, there was no difference in expression of key autophagy markers ATG16L1 and LC3II in the ileum whole tissue. However, Paneth cells of vitamin D-deficient mice were morphologically abnormal and had an accumulation of the autophagy adaptor protein p62, which was not present in the total crypt epithelium. These findings suggest that Paneth cells exhibit early markers of autophagy dysregulation within the intestinal epithelium in response to vitamin D deficiency and enhanced miR-142-3p expression. Finally, we demonstrated that treatment-naïve IBD patients with low levels of vitamin D have an increase in miR-142-3p expression in colonic tissues procured from "involved" areas of the disease. Taken together, our findings demonstrate that insufficient vitamin D levels alter expression of autophagy-regulating miR-142-3p in intestinal tissues of mice and patients with IBD, providing insight into the mechanisms by which vitamin D deficiency modulates IBD pathogenesis.NEW & NOTEWORTHY Vitamin D deficiency has a role in IBD pathogenesis, and although the mechanisms surrounding its role remain unclear, it has been suggested that autophagy dysregulation is involved. Here, we show increased ileal expression of autophagy-suppressing miR-142-3p in mice that were fed a vitamin D-deficient diet and in "involved" colonic biopsies from pediatric IBD patients with low vitamin D. miR-142-3p serves as a potential mechanism mediating vitamin D deficiency and reduced autophagy.
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Affiliation(s)
- Laurel McGillis
- Cell Biology Program, Hospital for Sick Children, Toronto, Ontario, Canada.,Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada.,Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Dana M Bronte-Tinkew
- Cell Biology Program, Hospital for Sick Children, Toronto, Ontario, Canada.,Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Physiology, University of Toronto, Toronto, Ontario, Canada
| | - Frances Dang
- Cell Biology Program, Hospital for Sick Children, Toronto, Ontario, Canada.,Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Physiology, University of Toronto, Toronto, Ontario, Canada
| | - Mariana Capurro
- Cell Biology Program, Hospital for Sick Children, Toronto, Ontario, Canada.,Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Akriti Prashar
- Cell Biology Program, Hospital for Sick Children, Toronto, Ontario, Canada.,Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Amanda Ricciuto
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Laura Greenfield
- Cell Biology Program, Hospital for Sick Children, Toronto, Ontario, Canada.,Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Ana Lozano-Ruf
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Iram Siddiqui
- Department of Pathology, Hospital for Sick Children, Toronto, Ontario, Canada.,Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Adam Hsieh
- Cell Biology Program, Hospital for Sick Children, Toronto, Ontario, Canada.,Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Physiology, University of Toronto, Toronto, Ontario, Canada
| | - Peter Church
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Thomas Walters
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Daniel E Roth
- Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada.,Division of Paediatric Medicine, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Anne Griffiths
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Dana Philpott
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Nicola L Jones
- Cell Biology Program, Hospital for Sick Children, Toronto, Ontario, Canada.,Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada.,Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Physiology, University of Toronto, Toronto, Ontario, Canada.,Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada
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10
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Nyström EEL, Martinez-Abad B, Arike L, Birchenough GMH, Nonnecke EB, Castillo PA, Svensson F, Bevins CL, Hansson GC, Johansson MEV. An intercrypt subpopulation of goblet cells is essential for colonic mucus barrier function. Science 2021; 372:372/6539/eabb1590. [PMID: 33859001 DOI: 10.1126/science.abb1590] [Citation(s) in RCA: 116] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 03/05/2021] [Indexed: 12/11/2022]
Abstract
The intestinal mucus layer, an important element of epithelial protection, is produced by goblet cells. Intestinal goblet cells are assumed to be a homogeneous cell type. In this study, however, we delineated their specific gene and protein expression profiles and identified several distinct goblet cell populations that form two differentiation trajectories. One distinct subtype, the intercrypt goblet cells (icGCs), located at the colonic luminal surface, produced mucus with properties that differed from the mucus secreted by crypt-residing goblet cells. Mice with defective icGCs had increased sensitivity to chemically induced colitis and manifested spontaneous colitis with age. Furthermore, alterations in mucus and reduced numbers of icGCs were observed in patients with both active and remissive ulcerative colitis, which highlights the importance of icGCs in maintaining functional protection of the epithelium.
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Affiliation(s)
- Elisabeth E L Nyström
- Department of Medical Biochemistry, Institute of Biomedicine, University of Gothenburg, 40530 Gothenburg, Sweden
| | - Beatriz Martinez-Abad
- Department of Medical Biochemistry, Institute of Biomedicine, University of Gothenburg, 40530 Gothenburg, Sweden
| | - Liisa Arike
- Department of Medical Biochemistry, Institute of Biomedicine, University of Gothenburg, 40530 Gothenburg, Sweden
| | - George M H Birchenough
- Department of Medical Biochemistry, Institute of Biomedicine, University of Gothenburg, 40530 Gothenburg, Sweden
| | - Eric B Nonnecke
- Department of Microbiology and Immunology, School of Medicine, University of California, Davis, CA 95616, USA
| | - Patricia A Castillo
- Department of Microbiology and Immunology, School of Medicine, University of California, Davis, CA 95616, USA
| | - Frida Svensson
- Department of Medical Biochemistry, Institute of Biomedicine, University of Gothenburg, 40530 Gothenburg, Sweden
| | - Charles L Bevins
- Department of Microbiology and Immunology, School of Medicine, University of California, Davis, CA 95616, USA
| | - Gunnar C Hansson
- Department of Medical Biochemistry, Institute of Biomedicine, University of Gothenburg, 40530 Gothenburg, Sweden
| | - Malin E V Johansson
- Department of Medical Biochemistry, Institute of Biomedicine, University of Gothenburg, 40530 Gothenburg, Sweden.
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11
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Yu S, Balasubramanian I, Laubitz D, Tong K, Bandyopadhyay S, Lin X, Flores J, Singh R, Liu Y, Macazana C, Zhao Y, Béguet-Crespel F, Patil K, Midura-Kiela MT, Wang D, Yap GS, Ferraris RP, Wei Z, Bonder EM, Häggblom MM, Zhang L, Douard V, Verzi MP, Cadwell K, Kiela PR, Gao N. Paneth Cell-Derived Lysozyme Defines the Composition of Mucolytic Microbiota and the Inflammatory Tone of the Intestine. Immunity 2021; 53:398-416.e8. [PMID: 32814028 DOI: 10.1016/j.immuni.2020.07.010] [Citation(s) in RCA: 83] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 03/26/2020] [Accepted: 07/15/2020] [Indexed: 02/07/2023]
Abstract
Paneth cells are the primary source of C-type lysozyme, a β-1,4-N-acetylmuramoylhydrolase that enzymatically processes bacterial cell walls. Paneth cells are normally present in human cecum and ascending colon, but are rarely found in descending colon and rectum; Paneth cell metaplasia in this region and aberrant lysozyme production are hallmarks of inflammatory bowel disease (IBD) pathology. Here, we examined the impact of aberrant lysozyme production in colonic inflammation. Targeted disruption of Paneth cell lysozyme (Lyz1) protected mice from experimental colitis. Lyz1-deficiency diminished intestinal immune responses to bacterial molecular patterns and resulted in the expansion of lysozyme-sensitive mucolytic bacteria, including Ruminococcus gnavus, a Crohn's disease-associated pathobiont. Ectopic lysozyme production in colonic epithelium suppressed lysozyme-sensitive bacteria and exacerbated colitis. Transfer of R. gnavus into Lyz1-/- hosts elicited a type 2 immune response, causing epithelial reprograming and enhanced anti-colitogenic capacity. In contrast, in lysozyme-intact hosts, processed R. gnavus drove pro-inflammatory responses. Thus, Paneth cell lysozyme balances intestinal anti- and pro-inflammatory responses, with implications for IBD.
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Affiliation(s)
- Shiyan Yu
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | | | - Daniel Laubitz
- Department of Pediatrics, University of Arizona, Tucson, AZ, USA
| | - Kevin Tong
- Department of Genetics, Rutgers University, Piscataway, NJ, USA
| | | | - Xiang Lin
- Department of Computer Science, New Jersey Institute of Technology, Newark, NJ, USA
| | - Juan Flores
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | - Rajbir Singh
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | - Yue Liu
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | - Carlos Macazana
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | - Yanlin Zhao
- Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Fabienne Béguet-Crespel
- Micalis Institute, Institut National de la Recherche Agronomique (INRA), AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Karuna Patil
- Department of Pediatrics, University of Arizona, Tucson, AZ, USA
| | | | - Daniel Wang
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | - George S Yap
- Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Ronaldo P Ferraris
- Department of Pharmacology, Physiology and Neuroscience, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Zhi Wei
- Department of Computer Science, New Jersey Institute of Technology, Newark, NJ, USA
| | - Edward M Bonder
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | - Max M Häggblom
- Department of Biochemistry and Microbiology, Rutgers University, New Brunswick, NJ, USA
| | - Lanjing Zhang
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA; Department of Pathology, Princeton Medical Center, Plainsboro, NJ, USA
| | - Veronique Douard
- Micalis Institute, Institut National de la Recherche Agronomique (INRA), AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Michael P Verzi
- Department of Genetics, Rutgers University, Piscataway, NJ, USA
| | - Ken Cadwell
- Department of Microbiology and Kimmel Center for Biology and Medicine at the Skirball Institute, New York University School of Medicine, New York, NY, USA
| | - Pawel R Kiela
- Department of Pediatrics, University of Arizona, Tucson, AZ, USA; Department of Immunobiology, University of Arizona, Tucson, AZ, USA
| | - Nan Gao
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA.
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12
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Huang M, Yang L, Jiang N, Dai Q, Li R, Zhou Z, Zhao B, Lin X. Emc3 maintains intestinal homeostasis by preserving secretory lineages. Mucosal Immunol 2021; 14:873-886. [PMID: 33785873 PMCID: PMC8222001 DOI: 10.1038/s41385-021-00399-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 02/23/2021] [Accepted: 03/08/2021] [Indexed: 02/04/2023]
Abstract
Intestinal exocrine secretory lineages, including goblet cells and Paneth cells, provide vital innate host defense to pathogens. However, how these cells are specified and maintained to ensure intestinal barrier function remains poorly defined. Here we show that endoplasmic reticulum membrane protein complex subunit 3 (Emc3) is essential for differentiation and function of exocrine secretory lineages. Deletion of Emc3 in intestinal epithelium decreases mucus production by goblet cells and Paneth cell population, along with gut microbial dysbiosis, which result in spontaneous inflammation and increased susceptibility to DSS-induced colitis. Moreover, Emc3 deletion impairs stem cell niche function of Paneth cells, thus resulting in intestinal organoid culture failure. Mechanistically, Emc3 deficiency leads to increased endoplasmic reticulum (ER) stress. Mitigating ER stress with tauroursodeoxycholate acid alleviates secretory dysfunction and restores organoid formation. Our study identifies a dominant role of Emc3 in maintaining intestinal mucosal homeostasis.
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Affiliation(s)
- Meina Huang
- grid.8547.e0000 0001 0125 2443State Key Laboratory of Genetic Engineering, School of Life Sciences, Zhongshan Hospital, Fudan University, Shanghai, China ,grid.8547.e0000 0001 0125 2443National Health Commission (NHC) Key Laboratory of Reproduction Regulation, Shanghai Institute of Planned Parenthood Research, Fudan University, Shanghai, China
| | - Li Yang
- grid.8547.e0000 0001 0125 2443State Key Laboratory of Genetic Engineering, School of Life Sciences, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ning Jiang
- grid.8547.e0000 0001 0125 2443State Key Laboratory of Genetic Engineering, School of Life Sciences, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Quanhui Dai
- grid.8547.e0000 0001 0125 2443State Key Laboratory of Genetic Engineering, School of Life Sciences, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Runsheng Li
- grid.8547.e0000 0001 0125 2443National Health Commission (NHC) Key Laboratory of Reproduction Regulation, Shanghai Institute of Planned Parenthood Research, Fudan University, Shanghai, China
| | - Zhaocai Zhou
- grid.8547.e0000 0001 0125 2443State Key Laboratory of Genetic Engineering, School of Life Sciences, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Bing Zhao
- grid.8547.e0000 0001 0125 2443State Key Laboratory of Genetic Engineering, School of Life Sciences, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xinhua Lin
- grid.8547.e0000 0001 0125 2443State Key Laboratory of Genetic Engineering, School of Life Sciences, Zhongshan Hospital, Fudan University, Shanghai, China
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13
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Yang H, Mirsepasi-Lauridsen HC, Struve C, Allaire JM, Sivignon A, Vogl W, Bosman ES, Ma C, Fotovati A, Reid GS, Li X, Petersen AM, Gouin SG, Barnich N, Jacobson K, Yu HB, Krogfelt KA, Vallance BA. Ulcerative Colitis-associated E. coli pathobionts potentiate colitis in susceptible hosts. Gut Microbes 2020; 12:1847976. [PMID: 33258388 PMCID: PMC7781664 DOI: 10.1080/19490976.2020.1847976] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Ulcerative colitis (UC) is a chronic inflammatory condition linked to intestinal microbial dysbiosis, including the expansion of E. coli strains related to extra-intestinal pathogenic E. coli. These "pathobionts" exhibit pathogenic properties, but their potential to promote UC is unclear due to the lack of relevant animal models. Here, we established a mouse model using a representative UC pathobiont strain (p19A), and mice lacking single immunoglobulin and toll-interleukin 1 receptor domain (SIGIRR), a deficiency increasing susceptibility to gut infections. Strain p19A was found to adhere to the cecal mucosa of Sigirr -/- mice, causing modest inflammation. Moreover, it dramatically worsened dextran sodium sulfate-induced colitis. This potentiation was attenuated using a p19A strain lacking α-hemolysin genes, or when we targeted pathobiont adherence using a p19A strain lacking the adhesin FimH, or following treatment with FimH antagonists. Thus, UC pathobionts adhere to the intestinal mucosa, and worsen the course of colitis in susceptible hosts.
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Affiliation(s)
- Hyungjun Yang
- Department of Pediatrics, BC Children’s Hospital, University of British Columbia, Vancouver, BC, Canada,CONTACT Hong Bing Yu Department of Pediatrics, BC Children’s Hospital, University of British Columbia, Vancouver, BC, Canada; Karen
| | - Hengameh Chloé Mirsepasi-Lauridsen
- Department of Bacteria, Parasites and Fungi, Statens Serum Institute, Copenhagen, Denmark,Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Carsten Struve
- Department of Bacteria, Parasites and Fungi, Statens Serum Institute, Copenhagen, Denmark
| | - Joannie M. Allaire
- Department of Pediatrics, BC Children’s Hospital, University of British Columbia, Vancouver, BC, Canada
| | - Adeline Sivignon
- Université Clermont Auvergne, Laboratoire Microbes Intestin Inflammation Et Susceptibilité De l’Hôte (M2ish), Inserm U1071, M2iSH, F-63000, Clermont-Ferrand, France,INRA, Unité Sous Contrat 2018, Clermont-Ferrand, France
| | - Wayne Vogl
- Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Else S. Bosman
- Department of Pediatrics, BC Children’s Hospital, University of British Columbia, Vancouver, BC, Canada
| | - Caixia Ma
- Department of Pediatrics, BC Children’s Hospital, University of British Columbia, Vancouver, BC, Canada
| | - Abbas Fotovati
- Department of Pediatrics, BC Children’s Hospital, University of British Columbia, Vancouver, BC, Canada
| | - Gregor S. Reid
- Department of Pediatrics, BC Children’s Hospital, University of British Columbia, Vancouver, BC, Canada
| | - Xiaoxia Li
- Department of Immunology, Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | - Andreas Munk Petersen
- Department of Gastroenterology, Copenhagen University Hospital, Hvidovre, Denmark,Department of Clinical Microbiology, Copenhagen University Hospital, Hvidovre, Denmark
| | - Sébastien G. Gouin
- Université De Nantes, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230, UFR Des Sciences Et Des Techniques, Nantes, France
| | - Nicolas Barnich
- Université Clermont Auvergne, Laboratoire Microbes Intestin Inflammation Et Susceptibilité De l’Hôte (M2ish), Inserm U1071, M2iSH, F-63000, Clermont-Ferrand, France,INRA, Unité Sous Contrat 2018, Clermont-Ferrand, France
| | - Kevan Jacobson
- Department of Pediatrics, BC Children’s Hospital, University of British Columbia, Vancouver, BC, Canada
| | - Hong Bing Yu
- Department of Pediatrics, BC Children’s Hospital, University of British Columbia, Vancouver, BC, Canada,CONTACT Hong Bing Yu Department of Pediatrics, BC Children’s Hospital, University of British Columbia, Vancouver, BC, Canada; Karen
| | - Karen Angeliki Krogfelt
- Department of Bacteria, Parasites and Fungi, Statens Serum Institute, Copenhagen, Denmark,Angeliki Krogfelt
| | - Bruce A. Vallance
- Department of Pediatrics, BC Children’s Hospital, University of British Columbia, Vancouver, BC, Canada,Lead Contact,Bruce A. Vallance
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14
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Jackson DN, Panopoulos M, Neumann WL, Turner K, Cantarel BL, Thompson-Snipes L, Dassopoulos T, Feagins LA, Souza RF, Mills JC, Blumberg RS, Venuprasad K, Thompson WE, Theiss AL. Mitochondrial dysfunction during loss of prohibitin 1 triggers Paneth cell defects and ileitis. Gut 2020; 69:1928-1938. [PMID: 32111635 PMCID: PMC7483170 DOI: 10.1136/gutjnl-2019-319523] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 01/24/2020] [Accepted: 02/03/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Although perturbations in mitochondrial function and structure have been described in the intestinal epithelium of Crohn's disease and ulcerative colitis patients, the role of epithelial mitochondrial stress in the pathophysiology of inflammatory bowel diseases (IBD) is not well elucidated. Prohibitin 1 (PHB1), a major component protein of the inner mitochondrial membrane crucial for optimal respiratory chain assembly and function, is decreased during IBD. DESIGN Male and female mice with inducible intestinal epithelial cell deletion of Phb1 (Phb1iΔIEC ) or Paneth cell-specific deletion of Phb1 (Phb1ΔPC ) and Phb1fl/fl control mice were housed up to 20 weeks to characterise the impact of PHB1 deletion on intestinal homeostasis. To suppress mitochondrial reactive oxygen species, a mitochondrial-targeted antioxidant, Mito-Tempo, was administered. To examine epithelial cell-intrinsic responses, intestinal enteroids were generated from crypts of Phb1iΔIEC or Phb1ΔPC mice. RESULTS Phb1iΔIEC mice exhibited spontaneous ileal inflammation that was preceded by mitochondrial dysfunction in all IECs and early abnormalities in Paneth cells. Mito-Tempo ameliorated mitochondrial dysfunction, Paneth cell abnormalities and ileitis in Phb1iΔIEC ileum. Deletion of Phb1 specifically in Paneth cells (Phb1ΔPC ) was sufficient to cause ileitis. Intestinal enteroids generated from crypts of Phb1iΔIEC or Phb1ΔPC mice exhibited decreased viability and Paneth cell defects that were improved by Mito-Tempo. CONCLUSION Our results identify Paneth cells as highly susceptible to mitochondrial dysfunction and central to the pathogenesis of ileitis, with translational implications for the subset of Crohn's disease patients exhibiting Paneth cell defects.
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Affiliation(s)
- Dakota N Jackson
- Department of Medicine, Baylor Scott and White Research Institute, Dallas, Texas, USA
| | - Marina Panopoulos
- Department of Medicine, Baylor Scott and White Research Institute, Dallas, Texas, USA
| | | | - Kevin Turner
- University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, USA
| | - Brandi L Cantarel
- University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, USA
| | - LuAnn Thompson-Snipes
- Department of Medicine, Baylor Scott and White Research Institute, Dallas, Texas, USA
| | | | - Linda A Feagins
- Gastroenterology and Hepatology, Veteran Affairs North Texas Health Care System, Dallas, Texas, USA
| | - Rhonda F Souza
- Department of Medicine, Baylor Scott and White Center for Esophageal Research, Dallas, Texas, USA
| | - Jason C Mills
- Internal Medicine, Washington University in Saint Louis School of Medicine, Saint Louis, Missouri, USA
| | | | - K Venuprasad
- University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, USA
| | | | - Arianne L Theiss
- Department of Medicine, Baylor Scott and White Research Institute, Dallas, Texas, USA
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15
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Reynolds KL, Cloft SE, Wong EA. Changes with age in density of goblet cells in the small intestine of broiler chicks. Poult Sci 2020; 99:2342-2348. [PMID: 32359569 PMCID: PMC7597461 DOI: 10.1016/j.psj.2019.12.052] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 12/19/2019] [Accepted: 12/25/2019] [Indexed: 01/03/2023] Open
Abstract
Goblet cells secrete mucin 2 (Muc2), which is a major component of the mucus that lines the intestinal tract and creates a protective barrier between pathogens and the intestinal epithelial cells and thus are important for chick health. The objectives of this study were to determine the age-specific and intestinal segment-specific expression of Muc2 mRNA and changes in the number of goblet cells from late embryogenesis to early after hatch. Small intestinal samples from the duodenum, jejunum, and ileum were collected from Cobb 500 broilers at embryonic day 19 (e19), day of hatch (doh), and day 2 and 4 after hatch. Cells expressing Muc2 mRNA and mucin glycoprotein were detected by in situ hybridization or alcian blue and periodic acid-Schiff staining, respectively. Along the villi, there were many more cells expressing Muc2 mRNA than those stained for mucin glycoprotein. In the crypt, cells expressing Muc2 mRNA did not stain for mucin glycoprotein. There was an increase in the density of goblet cells in the villi and Muc2 mRNA expressing cells in the crypts of the jejunum and ileum from e19 to doh and day 2 to day 4, with no change between doh and day 2. In contrast, in the duodenum, the density of goblet cells in the villi and Muc2 mRNA expressing cells in the crypts remained constant from e19 to day 4. At day 4, the villi in the ileum had a greater density of goblet cells than the duodenum. In the crypt, the ileum had a greater density of Muc2 mRNA expressing cells than the duodenum at doh, and the ileum and jejunum both had greater densities of Muc2 mRNA expressing cells than the duodenum at day 4. These results indicate that the population of goblet cells has reached a steady state by doh in the duodenum, whereas in the jejunum and ileum, a steady-state population was not reached until after hatch.
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Affiliation(s)
- K L Reynolds
- Department of Animal and Poultry Sciences, Virginia Tech. Blacksburg 24061
| | - S E Cloft
- Department of Animal and Poultry Sciences, Virginia Tech. Blacksburg 24061
| | - E A Wong
- Department of Animal and Poultry Sciences, Virginia Tech. Blacksburg 24061.
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