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Ghiboub M, Boneh RS, Sovran B, Wine E, Lefèvre A, Emond P, Verburgt CM, Benninga MA, de Jonge WJ, Van Limbergen JE. Sustained Diet-Induced Remission in Pediatric Crohn's Disease Is Associated With Kynurenine and Serotonin Pathways. Inflamm Bowel Dis 2023; 29:684-694. [PMID: 36637175 PMCID: PMC10152286 DOI: 10.1093/ibd/izac262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Indexed: 01/14/2023]
Abstract
BACKGROUND Both the Crohn's disease exclusion diet combined with partial enteral nutrition (CDED+PEN) and exclusive enteral nutrition (EEN) can induce remission in mild-to-moderate pediatric Crohn's disease and are associated with a marked decrease in fecal kynurenine levels. This suggests a link between clinical outcome of dietary therapy and changes in tryptophan metabolism pathways. Here, we characterize the changes in several fecal tryptophan metabolites induced by CDED+PEN or EEN and their association with remission. METHODS A total of 21 tryptophan metabolites were quantified in fecal samples from a 12-week prospective randomized trial with CDED+PEN or EEN for induction of remission in mild to moderate pediatric Crohn's disease. Tryptophan metabolites at week 0 (W0), W6, and W12 of 73 samples were quantitatively measured by liquid chromatography coupled with triple quadrupole mass spectrometry, and data were analyzed according to clinical groups of baselines (W0), induced remission at W6, no remission, sustained remission at W12, and nonsustained remission. RESULTS Reduction in components of the kynurenine pathway, such as kynurenine and quinolinic acid, were strongly associated with induced remission with both CDED+PEN and EEN, which were maintained in sustained remission. Specific serotonin pathway metabolites, such as melatonin, N-acetylserotonin, and 5-OH-tryptophan, were significantly increased in fecal samples from patients maintaining remission at W12 with both CDED+PEN and EEN. Importantly, in samples from patients failing to sustain remission, no changes were observed. Remission induction with EEN differs from CDED+PEN, particularly the moderate effects on indole pathway metabolites. The ratios of kynurenine and melatonin and quinolinic acid and melatonin perform well as markers for sustained remission. CONCLUSIONS The reduction in specific kynurenine pathway compounds and the increase in serotonin pathway compounds are associated with diet-induced and sustained remission. Further studies are warranted to assess causality and the association of these metabolites with specific diet and lifestyle factors, affecting sustained clinical remission.
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Affiliation(s)
- Mohammed Ghiboub
- Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology Endocrinology Metabolism, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands.,Department of Pediatric Gastroenterology and Nutrition, Emma Children's Hospital, Amsterdam University Medical Centers, Amsterdam, Netherlands
| | - Rotem Sigall Boneh
- Division of Pediatric Gastroenterology, Wolfson Medical Centre, Holon, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Bruno Sovran
- Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology Endocrinology Metabolism, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands.,Department of Pediatric Surgery, Amsterdam Reproduction and Development Research Institute, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Eytan Wine
- Division of Pediatric Gastroenterology, Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
| | - Antoine Lefèvre
- UMR 1253, iBrain, INSERM, University of Tours, Tours, France
| | - Patrick Emond
- UMR 1253, iBrain, INSERM, University of Tours, Tours, France.,Laboratoire de Médecine Nucléaire In Vitro, Centre Hospitalier Régionale Universitaire de Tours, Tours, France
| | - Charlotte M Verburgt
- Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology Endocrinology Metabolism, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands.,Department of Pediatric Gastroenterology and Nutrition, Emma Children's Hospital, Amsterdam University Medical Centers, Amsterdam, Netherlands
| | - Marc A Benninga
- Department of Pediatric Gastroenterology and Nutrition, Emma Children's Hospital, Amsterdam University Medical Centers, Amsterdam, Netherlands
| | - Wouter J de Jonge
- Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology Endocrinology Metabolism, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands.,Department of Surgery, University Hospital of Bonn, Bonn, Germany
| | - Johan E Van Limbergen
- Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology Endocrinology Metabolism, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands.,Department of Pediatric Gastroenterology and Nutrition, Emma Children's Hospital, Amsterdam University Medical Centers, Amsterdam, Netherlands.,Amsterdam Public Health Research Institute, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
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2
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van der Lugt B, van Beek AA, Aalvink S, Meijer B, Sovran B, Vermeij WP, Brandt RMC, de Vos WM, Savelkoul HFJ, Steegenga WT, Belzer C. Akkermansia muciniphila ameliorates the age-related decline in colonic mucus thickness and attenuates immune activation in accelerated aging Ercc1 -/Δ7 mice. Immun Ageing 2019; 16:6. [PMID: 30899315 PMCID: PMC6408808 DOI: 10.1186/s12979-019-0145-z] [Citation(s) in RCA: 107] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 02/14/2019] [Indexed: 12/26/2022]
Abstract
BACKGROUND The use of Akkermansia muciniphila as potential therapeutic intervention is receiving increasing attention. Health benefits attributed to this bacterium include an improvement of metabolic disorders and exerting anti-inflammatory effects. The abundance of A. muciniphila is associated with a healthy gut in early mid- and later life. However, the effects of A. muciniphila on a decline in intestinal health during the aging process are not investigated yet. We supplemented accelerated aging Ercc1 -/Δ7 mice with A. muciniphila for 10 weeks and investigated histological, transcriptional and immunological aspects of intestinal health. RESULTS The thickness of the colonic mucus layer increased about 3-fold after long-term A. muciniphila supplementation and was even significantly thicker compared to mice supplemented with Lactobacillus plantarum WCFS1. Colonic gene expression profiles pointed towards a decreased expression of genes and pathways related to inflammation and immune function, and suggested a decreased presence of B cells in colon. Total B cell frequencies in spleen and mesenteric lymph nodes were not altered after A. muciniphila supplementation. Mature and immature B cell frequencies in bone marrow were increased, whereas B cell precursors were unaffected. These findings implicate that B cell migration rather than production was affected by A. muciniphila supplementation. Gene expression profiles in ileum pointed toward a decrease in metabolic- and immune-related processes and antimicrobial peptide production after A. muciniphila supplementation. Besides, A. muciniphila decreased the frequency of activated CD80+CD273- B cells in Peyer's patches. Additionally, the increased numbers of peritoneal resident macrophages and a decrease in Ly6Cint monocyte frequencies in spleen and mesenteric lymph nodes add evidence for the potentially anti-inflammatory properties of A. muciniphila. CONCLUSIONS Altogether, we show that supplementation with A. muciniphila prevented the age-related decline in thickness of the colonic mucus layer and attenuated inflammation and immune-related processes at old age. This study implies that A. muciniphila supplementation can contribute to a promotion of healthy aging.
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Affiliation(s)
- Benthe van der Lugt
- Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, The Netherlands
| | - Adriaan A. van Beek
- Department of Immunology, Erasmus University Medical Center, Rotterdam, The Netherlands
- Cell Biology and Immunology Group, Wageningen University and Research, Wageningen, The Netherlands
| | - Steven Aalvink
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands
| | - Ben Meijer
- Cell Biology and Immunology Group, Wageningen University and Research, Wageningen, The Netherlands
| | - Bruno Sovran
- Host Microbe Interactomics, Wageningen University and Research, Wageningen, The Netherlands
| | - Wilbert P. Vermeij
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
- Princess Máxima Center for Pediatric Oncology, Oncode Institute, Utrecht, The Netherlands
| | - Renata M. C. Brandt
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Willem M. de Vos
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands
- Immunobiology Research Programme, Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland
| | - Huub F. J. Savelkoul
- Cell Biology and Immunology Group, Wageningen University and Research, Wageningen, The Netherlands
| | - Wilma T. Steegenga
- Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, The Netherlands
| | - Clara Belzer
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands
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3
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Sovran B, Hugenholtz F, Elderman M, Van Beek AA, Graversen K, Huijskes M, Boekschoten MV, Savelkoul HFJ, De Vos P, Dekker J, Wells JM. Age-associated Impairment of the Mucus Barrier Function is Associated with Profound Changes in Microbiota and Immunity. Sci Rep 2019; 9:1437. [PMID: 30723224 PMCID: PMC6363726 DOI: 10.1038/s41598-018-35228-3] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [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: 04/20/2016] [Accepted: 10/16/2018] [Indexed: 02/07/2023] Open
Abstract
Aging significantly increases the vulnerability to gastrointestinal (GI) disorders but there are few studies investigating the key factors in aging that affect the GI tract. To address this knowledge gap, we used 10-week- and 19-month-old litter-mate mice to investigate microbiota and host gene expression changes in association with ageing. In aged mice the thickness of the colonic mucus layer was reduced about 6-fold relative to young mice, and more easily penetrable by luminal bacteria. This was linked to increased apoptosis of goblet cells in the upper part of the crypts. The barrier function of the small intestinal mucus was also compromised and the microbiota were frequently observed in contact with the villus epithelium. Antimicrobial Paneth cell factors Ang4 and lysozyme were expressed in significantly reduced amounts. These barrier defects were accompanied by major changes in the faecal microbiota and significantly decreased abundance of Akkermansia muciniphila which is strongly and negatively affected by old age in humans. Transcriptomics revealed age-associated decreases in the expression of immunity and other genes in intestinal mucosal tissue, including decreased T cell-specific transcripts and T cell signalling pathways. The physiological and immunological changes we observed in the intestine in old age, could have major consequences beyond the gut.
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Affiliation(s)
- Bruno Sovran
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Cell Biology and Immunology Group, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Floor Hugenholtz
- Laboratory of Microbiology, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Marlies Elderman
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Adriaan A Van Beek
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Cell Biology and Immunology Group, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Katrine Graversen
- Host-Microbe Interactomics Group, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Myrte Huijskes
- Host-Microbe Interactomics Group, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Mark V Boekschoten
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Division of Human Nutrition, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Huub F J Savelkoul
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Cell Biology and Immunology Group, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Paul De Vos
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jan Dekker
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Host-Microbe Interactomics Group, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Jerry M Wells
- Top Institute Food and Nutrition, Wageningen, The Netherlands. .,Host-Microbe Interactomics Group, Wageningen University and Research Center, Wageningen, The Netherlands.
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Lamas B, Michel ML, Waldschmitt N, Pham HP, Zacharioudaki V, Dupraz L, Delacre M, Natividad JM, Costa GD, Planchais J, Sovran B, Bridonneau C, Six A, Langella P, Richard ML, Chamaillard M, Sokol H. Card9 mediates susceptibility to intestinal pathogens through microbiota modulation and control of bacterial virulence. Gut 2018; 67:1836-1844. [PMID: 28790160 DOI: 10.1136/gutjnl-2017-314195] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [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] [Received: 03/23/2017] [Revised: 07/19/2017] [Accepted: 07/23/2017] [Indexed: 01/14/2023]
Abstract
OBJECTIVE In association with innate and adaptive immunity, the microbiota controls the colonisation resistance against intestinal pathogens. Caspase recruitment domain 9 (CARD9), a key innate immunity gene, is required to shape a normal gut microbiota. Card9-/- mice are more susceptible to the enteric mouse pathogen Citrobacter rodentium that mimics human infections with enteropathogenic and enterohaemorrhagic Escherichia coli. Here, we examined how CARD9 controls C. rodentium infection susceptibility through microbiota-dependent and microbiota-independent mechanisms. DESIGN C. rodentium infection was assessed in conventional and germ-free (GF) wild-type (WT) and Card9-/- mice. To explore the impact of Card9-/-microbiota in infection susceptibility, GF WT mice were colonised with WT (WT→GF) or Card9-/- (Card9-/- →GF) microbiota before C. rodentium infection. Microbiota composition was determined by 16S rDNA gene sequencing. Inflammation severity was determined by histology score and lipocalin level. Microbiota-host immune system interactions were assessed by quantitative PCR analysis. RESULTS CARD9 controls pathogen virulence in a microbiota-independent manner by supporting a specific humoral response. Higher susceptibility to C. rodentium-induced colitis was observed in Card9-/- →GF mice. The microbiota of Card9-/- mice failed to outcompete the monosaccharide-consuming C. rodentium, worsening the infection severity. A polysaccharide-enriched diet counteracted the ecological advantage of C. rodentium and the defective pathogen-specific antibody response in Card9-/- mice. CONCLUSIONS CARD9 modulates the susceptibility to intestinal infection by controlling the pathogen virulence in a microbiota-dependent and microbiota-independent manner. Genetic susceptibility to intestinal pathogens can be overridden by diet intervention that restores humoural immunity and a competing microbiota.
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Affiliation(s)
- Bruno Lamas
- Sorbonne University - Université Pierre et Marie Curie (UPMC), Paris, France.,Avenir Team Gut Microbiota and Immunity, Equipe de Recherche Labélisée (ERL) 1157, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, France.,Unité Mixte de Recherche (UMR) 7203, Centre National de Recherche Scientifique (CNRS), Paris, France.,Laboratoire de BioMolécules (LBM), Centre Hospitalo-Universitaire (CHU) Saint-Antoine 27 rue de Chaligny, Paris, France.,Micalis Institute, Institut National de la Recherche Agronomique (INRA), AgroParisTech, Université Paris-Saclay, Jouy en Josas, France
| | - Marie-Laure Michel
- Micalis Institute, Institut National de la Recherche Agronomique (INRA), AgroParisTech, Université Paris-Saclay, Jouy en Josas, France
| | - Nadine Waldschmitt
- Center for Infection and Immunity of Lille, Institut Pasteur de Lille, Lille, France.,INSERM U1019, Team 11, Equipe FRM, INSERM, Lille, France
| | | | - Vassiliki Zacharioudaki
- Center for Infection and Immunity of Lille, Institut Pasteur de Lille, Lille, France.,INSERM U1019, Team 11, Equipe FRM, INSERM, Lille, France
| | - Louise Dupraz
- Micalis Institute, Institut National de la Recherche Agronomique (INRA), AgroParisTech, Université Paris-Saclay, Jouy en Josas, France
| | - Myriam Delacre
- Center for Infection and Immunity of Lille, Institut Pasteur de Lille, Lille, France.,INSERM U1019, Team 11, Equipe FRM, INSERM, Lille, France
| | - Jane M Natividad
- Micalis Institute, Institut National de la Recherche Agronomique (INRA), AgroParisTech, Université Paris-Saclay, Jouy en Josas, France
| | - Gregory Da Costa
- Micalis Institute, Institut National de la Recherche Agronomique (INRA), AgroParisTech, Université Paris-Saclay, Jouy en Josas, France
| | - Julien Planchais
- Micalis Institute, Institut National de la Recherche Agronomique (INRA), AgroParisTech, Université Paris-Saclay, Jouy en Josas, France
| | - Bruno Sovran
- Micalis Institute, Institut National de la Recherche Agronomique (INRA), AgroParisTech, Université Paris-Saclay, Jouy en Josas, France
| | - Chantal Bridonneau
- Micalis Institute, Institut National de la Recherche Agronomique (INRA), AgroParisTech, Université Paris-Saclay, Jouy en Josas, France
| | - Adrien Six
- Department of Immunology-Immunopathology-Immunotherapy, Sorbonne Universités, UPMC Univ Paris 06, INSERM, UMRS959, Paris, France
| | - Philippe Langella
- Micalis Institute, Institut National de la Recherche Agronomique (INRA), AgroParisTech, Université Paris-Saclay, Jouy en Josas, France
| | - Mathias L Richard
- Micalis Institute, Institut National de la Recherche Agronomique (INRA), AgroParisTech, Université Paris-Saclay, Jouy en Josas, France
| | - Mathias Chamaillard
- Center for Infection and Immunity of Lille, Institut Pasteur de Lille, Lille, France.,INSERM U1019, Team 11, Equipe FRM, INSERM, Lille, France
| | - Harry Sokol
- Sorbonne University - Université Pierre et Marie Curie (UPMC), Paris, France.,Avenir Team Gut Microbiota and Immunity, Equipe de Recherche Labélisée (ERL) 1157, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, France.,Unité Mixte de Recherche (UMR) 7203, Centre National de Recherche Scientifique (CNRS), Paris, France.,Laboratoire de BioMolécules (LBM), Centre Hospitalo-Universitaire (CHU) Saint-Antoine 27 rue de Chaligny, Paris, France.,Micalis Institute, Institut National de la Recherche Agronomique (INRA), AgroParisTech, Université Paris-Saclay, Jouy en Josas, France.,Department of Gastroenterology, Saint Antoine Hospital, Assistance Publique-Hopitaux de Paris, UPMC, Paris, France
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5
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Sovran B, Planchais J, Jegou S, Straube M, Lamas B, Natividad JM, Agus A, Dupraz L, Glodt J, Da Costa G, Michel ML, Langella P, Richard ML, Sokol H. Enterobacteriaceae are essential for the modulation of colitis severity by fungi. Microbiome 2018; 6:152. [PMID: 30172257 PMCID: PMC6119584 DOI: 10.1186/s40168-018-0538-9] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 08/24/2018] [Indexed: 05/02/2023]
Abstract
BACKGROUND Host-microbe balance maintains intestinal homeostasis and strongly influences inflammatory conditions such as inflammatory bowel diseases (IBD). Here we focused on bacteria-fungi interactions and their implications on intestinal inflammation, a poorly understood area. METHODS Dextran sodium sulfate (DSS)-induced colitis was assessed in mice treated with vancomycin (targeting gram-positive bacteria) or colistin (targeting Enterobacteriaceae) and supplemented with either Saccharomyces boulardii CNCM I-745 or Candida albicans. Inflammation severity as well as bacterial and fungal microbiota compositions was monitored. RESULTS While S. boulardii improved DSS-induced colitis and C. albicans worsened it in untreated settings, antibiotic treatment strongly modified DSS susceptibility and effects of fungi on colitis. Vancomycin-treated mice were fully protected from colitis, while colistin-treated mice retained colitis phenotype but were not affected anymore by administration of fungi. Antibacterial treatments not only influenced bacterial populations but also had indirect effects on fungal microbiota. Correlations between bacterial and fungal relative abundance were dramatically decreased in colistin-treated mice compared to vancomycin-treated and control mice, suggesting that colistin-sensitive bacteria are involved in interactions with fungi. Restoration of the Enterobacteriaceae population by administrating colistin-resistant Escherichia coli reestablished both beneficial effects of S. boulardii and pathogenic effects of C. albicans on colitis severity. This effect was at least partly mediated by an improved gut colonization by fungi. CONCLUSIONS Fungal colonization of the gut is affected by the Enterobacteriaceae population, indirectly modifying effects of mycobiome on the host. This finding provides new insights into the role of inter-kingdom functional interactions in intestinal physiopathology and potentially in IBD.
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Affiliation(s)
- Bruno Sovran
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France
| | - Julien Planchais
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France
| | - Sarah Jegou
- Sorbonne Universités, École Normale Supérieure, CNRS, INSERM, APHP Laboratoire des Biomolécules (LBM), 27 rue de Chaligny, Paris, France
- Department of Gastroenterology, Saint Antoine Hospital, 184 rue du Faubourg Saint-Antoine, Paris, France
| | - Marjolene Straube
- Sorbonne Universités, École Normale Supérieure, CNRS, INSERM, APHP Laboratoire des Biomolécules (LBM), 27 rue de Chaligny, Paris, France
- Department of Gastroenterology, Saint Antoine Hospital, 184 rue du Faubourg Saint-Antoine, Paris, France
| | - Bruno Lamas
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France
| | - Jane Mea Natividad
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France
| | - Allison Agus
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France
| | - Louise Dupraz
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France
| | - Jérémy Glodt
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France
| | - Grégory Da Costa
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France
| | - Marie-Laure Michel
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France
| | - Philippe Langella
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France
| | - Mathias L. Richard
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France
| | - Harry Sokol
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France
- Sorbonne Universités, École Normale Supérieure, CNRS, INSERM, APHP Laboratoire des Biomolécules (LBM), 27 rue de Chaligny, Paris, France
- Department of Gastroenterology, Saint Antoine Hospital, 184 rue du Faubourg Saint-Antoine, Paris, France
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6
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Laurans L, Venteclef N, Haddad Y, Chajadine M, Alzaid F, Metghalchi S, Sovran B, Denis RGP, Dairou J, Cardellini M, Moreno-Navarrete JM, Straub M, Jegou S, McQuitty C, Viel T, Esposito B, Tavitian B, Callebert J, Luquet SH, Federici M, Fernandez-Real JM, Burcelin R, Launay JM, Tedgui A, Mallat Z, Sokol H, Taleb S. Genetic deficiency of indoleamine 2,3-dioxygenase promotes gut microbiota-mediated metabolic health. Nat Med 2018; 24:1113-1120. [PMID: 29942089 DOI: 10.1038/s41591-018-0060-4] [Citation(s) in RCA: 171] [Impact Index Per Article: 28.5] [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] [Received: 08/18/2017] [Accepted: 04/23/2018] [Indexed: 02/07/2023]
Abstract
The association between altered gut microbiota, intestinal permeability, inflammation and cardiometabolic diseases is becoming increasingly clear but remains poorly understood1,2. Indoleamine 2,3-dioxygenase is an enzyme induced in many types of immune cells, including macrophages in response to inflammatory stimuli, and catalyzes the degradation of tryptophan along the kynurenine pathway. Indoleamine 2,3-dioxygenase activity is better known for its suppression of effector T cell immunity and its activation of regulatory T cells3,4. However, high indoleamine 2,3-dioxygenase activity predicts worse cardiovascular outcome5-9 and may promote atherosclerosis and vascular inflammation6, suggesting a more complex role in chronic inflammatory settings. Indoleamine 2,3-dioxygenase activity is also increased in obesity10-13, yet its role in metabolic disease is still unexplored. Here, we show that obesity is associated with an increase of intestinal indoleamine 2,3-dioxygenase activity, which shifts tryptophan metabolism from indole derivative and interleukin-22 production toward kynurenine production. Indoleamine 2,3-dioxygenase deletion or inhibition improves insulin sensitivity, preserves the gut mucosal barrier, decreases endotoxemia and chronic inflammation, and regulates lipid metabolism in liver and adipose tissues. These beneficial effects are due to rewiring of tryptophan metabolism toward a microbiota-dependent production of interleukin-22 and are abrogated after treatment with a neutralizing anti-interleukin-22 antibody. In summary, we identify an unexpected function of indoleamine 2,3-dioxygenase in the fine tuning of intestinal tryptophan metabolism with major consequences on microbiota-dependent control of metabolic disease, which suggests indoleamine 2,3-dioxygenase as a potential therapeutic target.
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Affiliation(s)
- Ludivine Laurans
- Institut National de la Santé et de la Recherche Médicale, U970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
| | - Nicolas Venteclef
- Institut National de la Santé et de la Recherche Médicale, UMRS 1138, Sorbonne Universités, UPMC Université Paris 06, Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, and Centre de Recherche des Cordeliers, Paris, France
| | - Yacine Haddad
- Institut National de la Santé et de la Recherche Médicale, U970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
| | - Mouna Chajadine
- Institut National de la Santé et de la Recherche Médicale, U970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
| | - Fawaz Alzaid
- Institut National de la Santé et de la Recherche Médicale, UMRS 1138, Sorbonne Universités, UPMC Université Paris 06, Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot, and Centre de Recherche des Cordeliers, Paris, France
| | - Sarvenaz Metghalchi
- Institut National de la Santé et de la Recherche Médicale, U970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
| | - Bruno Sovran
- Micalis Institute, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Raphael G P Denis
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, UMR 8251, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Julien Dairou
- UMR 8601 CNRS, Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, Université Paris Descartes-Sorbonne Paris Cité, Paris, France
| | - Marina Cardellini
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Jose-Maria Moreno-Navarrete
- Department of Diabetes and Endocrinology, Hospital de Girona "Dr Josep Trueta", Girona, Spain
- CIBERobn Pathophysiology of Obesity and Nutrition, Instituto de Salud Carlos III, Madrid, Spain
| | - Marjolene Straub
- Sorbonne Université, École normale supérieure, PSL Research University, CNRS, INSERM, AP-HP, Laboratoire de biomolécules, Hôpital Saint-Antoine, Paris, France
| | - Sarah Jegou
- Sorbonne Université, École normale supérieure, PSL Research University, CNRS, INSERM, AP-HP, Laboratoire de biomolécules, Hôpital Saint-Antoine, Paris, France
| | - Claire McQuitty
- Sorbonne Université, École normale supérieure, PSL Research University, CNRS, INSERM, AP-HP, Laboratoire de biomolécules, Hôpital Saint-Antoine, Paris, France
| | - Thomas Viel
- Institut National de la Santé et de la Recherche Médicale, U970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
| | - Bruno Esposito
- Institut National de la Santé et de la Recherche Médicale, U970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
| | - Bertrand Tavitian
- Institut National de la Santé et de la Recherche Médicale, U970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
| | - Jacques Callebert
- Service de Biochimie, Assistance Publique Hôpitaux de Paris, and INSERM UMR942, Hôpital Lariboisière, Paris, France
| | - Serge H Luquet
- Unité de Biologie Fonctionnelle et Adaptative, Centre National la Recherche Scientifique, UMR 8251, Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Massimo Federici
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | | | - Remy Burcelin
- Institut des maladies métaboliques et cardiovasculaires, INSERM UMR1048, Toulouse, France
| | - Jean-Marie Launay
- Service de Biochimie, Assistance Publique Hôpitaux de Paris, and INSERM UMR942, Hôpital Lariboisière, Paris, France
| | - Alain Tedgui
- Institut National de la Santé et de la Recherche Médicale, U970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
| | - Ziad Mallat
- Institut National de la Santé et de la Recherche Médicale, U970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France
- Division of Cardiovascular Medicine, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK
| | - Harry Sokol
- Micalis Institute, Institut National de la Recherche Agronomique, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
- Sorbonne Université, École normale supérieure, PSL Research University, CNRS, INSERM, AP-HP, Laboratoire de biomolécules, Hôpital Saint-Antoine, Paris, France
- Department of Gastroenterology, Saint Antoine Hospital, Assistance Publique - Hopitaux de Paris, Sorbonne Université, Paris, France
| | - Soraya Taleb
- Institut National de la Santé et de la Recherche Médicale, U970, Paris Cardiovascular Research Center, and Université Paris-Descartes, Paris, France.
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7
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Elderman M, Sovran B, Hugenholtz F, Graversen K, Huijskes M, Houtsma E, Belzer C, Boekschoten M, de Vos P, Dekker J, Wells J, Faas M. The effect of age on the intestinal mucus thickness, microbiota composition and immunity in relation to sex in mice. PLoS One 2017; 12:e0184274. [PMID: 28898292 PMCID: PMC5595324 DOI: 10.1371/journal.pone.0184274] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 08/21/2017] [Indexed: 01/14/2023] Open
Abstract
A mucus layer covers and protects the intestinal epithelial cells from direct contact with microbes. This mucus layer not only prevents inflammation but also plays an essential role in microbiota colonization, indicating the complex interplay between mucus composition-microbiota and intestinal health. However, it is unknown whether the mucus layer is influenced by age or sex and whether this contributes to reported differences in intestinal diseases in males and females or with ageing. Therefore, in this study we investigated the effect of age on mucus thickness, intestinal microbiota composition and immune composition in relation to sex. The ageing induced shrinkage of the colonic mucus layer was associated with bacterial penetration and direct contact of bacteria with the epithelium in both sexes. Additionally, several genes involved in the biosynthesis of mucus were downregulated in old mice, especially in males, and this was accompanied by a decrease in abundances of various Lactobacillus species and unclassified Clostridiales type IV and XIV and increase in abundance of the potential pathobiont Bacteroides vulgatus. The changes in mucus and microbiota in old mice were associated with enhanced activation of the immune system as illustrated by a higher percentage of effector T cells in old mice. Our data contribute to a better understanding of the interplay between mucus-microbiota-and immune responses and ultimately may lead to more tailored design of strategies to modulate mucus production in targeted groups.
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Affiliation(s)
- Marlies Elderman
- Top Institute Food and Nutrition, Wageningen, the Netherlands
- Division of Medical Biology, department of Pathology and Medical Biology, University of Groningen, Groningen, the Netherlands
- * E-mail:
| | - Bruno Sovran
- Top Institute Food and Nutrition, Wageningen, the Netherlands
- Host-Microbe Interactomics Group, Wageningen University, Wageningen, the Netherlands
| | - Floor Hugenholtz
- Top Institute Food and Nutrition, Wageningen, the Netherlands
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, the Netherlands
| | - Katrine Graversen
- Host-Microbe Interactomics Group, Wageningen University, Wageningen, the Netherlands
| | - Myrte Huijskes
- Host-Microbe Interactomics Group, Wageningen University, Wageningen, the Netherlands
| | - Eva Houtsma
- Division of Medical Biology, department of Pathology and Medical Biology, University of Groningen, Groningen, the Netherlands
| | - Clara Belzer
- Top Institute Food and Nutrition, Wageningen, the Netherlands
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, the Netherlands
| | - Mark Boekschoten
- Top Institute Food and Nutrition, Wageningen, the Netherlands
- Nutrition, Metabolism and Genomics group, Wageningen University, Wageningen, the Netherlands
| | - Paul de Vos
- Top Institute Food and Nutrition, Wageningen, the Netherlands
- Division of Medical Biology, department of Pathology and Medical Biology, University of Groningen, Groningen, the Netherlands
| | - Jan Dekker
- Top Institute Food and Nutrition, Wageningen, the Netherlands
- Host-Microbe Interactomics Group, Wageningen University, Wageningen, the Netherlands
| | - Jerry Wells
- Top Institute Food and Nutrition, Wageningen, the Netherlands
- Host-Microbe Interactomics Group, Wageningen University, Wageningen, the Netherlands
| | - Marijke Faas
- Division of Medical Biology, department of Pathology and Medical Biology, University of Groningen, Groningen, the Netherlands
- Department of Obstetrics and Gynaecology, University of Groningen and University Medical Centre Groningen, Groningen, the Netherlands
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8
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van Beek AA, Sovran B, Hugenholtz F, Meijer B, Hoogerland JA, Mihailova V, van der Ploeg C, Belzer C, Boekschoten MV, Hoeijmakers JHJ, Vermeij WP, de Vos P, Wells JM, Leenen PJM, Nicoletti C, Hendriks RW, Savelkoul HFJ. Supplementation with Lactobacillus plantarum WCFS1 Prevents Decline of Mucus Barrier in Colon of Accelerated Aging Ercc1-/Δ7 Mice. Front Immunol 2016; 7:408. [PMID: 27774093 PMCID: PMC5054004 DOI: 10.3389/fimmu.2016.00408] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [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] [Received: 08/04/2016] [Accepted: 09/22/2016] [Indexed: 11/23/2022] Open
Abstract
Although it is clear that probiotics improve intestinal barrier function, little is known about the effects of probiotics on the aging intestine. We investigated effects of 10-week bacterial supplementation of Lactobacillus plantarum WCFS1, Lactobacillus casei BL23, or Bifidobacterium breve DSM20213 on gut barrier and immunity in 16-week-old accelerated aging Ercc1−/Δ7 mice, which have a median lifespan of ~20 weeks, and their wild-type littermates. The colonic barrier in Ercc1−/Δ7 mice was characterized by a thin (< 10 μm) mucus layer. L. plantarum prevented this decline in mucus integrity in Ercc1−/Δ7 mice, whereas B. breve exacerbated it. Bacterial supplementations affected the expression of immune-related genes, including Toll-like receptor 4. Regulatory T cell frequencies were increased in the mesenteric lymph nodes of L. plantarum- and L. casei-treated Ercc1−/Δ7 mice. L. plantarum- and L. casei-treated Ercc1−/Δ7 mice showed increased specific antibody production in a T cell-dependent immune response in vivo. By contrast, the effects of bacterial supplementation on wild-type control mice were negligible. Thus, supplementation with L. plantarum – but not with L. casei and B. breve – prevented the decline in the mucus barrier in Ercc1−/Δ7 mice. Our data indicate that age is an important factor influencing beneficial or detrimental effects of candidate probiotics. These findings also highlight the need for caution in translating beneficial effects of probiotics observed in young animals or humans to the elderly.
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Affiliation(s)
- Adriaan A van Beek
- Cell Biology and Immunology Group, Wageningen University, Wageningen, Netherlands; Top Institute Food and Nutrition, Wageningen, Netherlands; Gut Health and Food Safety, Institute of Food Research, Norwich, UK
| | - Bruno Sovran
- Top Institute Food and Nutrition, Wageningen, Netherlands; Host Microbe Interactomics, Wageningen University, Wageningen, Netherlands
| | - Floor Hugenholtz
- Top Institute Food and Nutrition, Wageningen, Netherlands; Laboratory of Microbiology, Wageningen University, Wageningen, Netherlands
| | - Ben Meijer
- Cell Biology and Immunology Group, Wageningen University , Wageningen , Netherlands
| | - Joanne A Hoogerland
- Cell Biology and Immunology Group, Wageningen University , Wageningen , Netherlands
| | - Violeta Mihailova
- Cell Biology and Immunology Group, Wageningen University , Wageningen , Netherlands
| | - Corine van der Ploeg
- Cell Biology and Immunology Group, Wageningen University , Wageningen , Netherlands
| | - Clara Belzer
- Top Institute Food and Nutrition, Wageningen, Netherlands; Laboratory of Microbiology, Wageningen University, Wageningen, Netherlands
| | - Mark V Boekschoten
- Top Institute Food and Nutrition, Wageningen, Netherlands; Human Nutrition, Wageningen University, Wageningen, Netherlands
| | - Jan H J Hoeijmakers
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, Netherlands; CECAD Forschungszentrum, Universität zu Köln, Köln, Germany
| | - Wilbert P Vermeij
- Department of Molecular Genetics, Erasmus University Medical Center , Rotterdam , Netherlands
| | - Paul de Vos
- Top Institute Food and Nutrition, Wageningen, Netherlands; University of Groningen, Groningen, Netherlands
| | - Jerry M Wells
- Top Institute Food and Nutrition, Wageningen, Netherlands; Host Microbe Interactomics, Wageningen University, Wageningen, Netherlands
| | - Pieter J M Leenen
- Department of Immunology, Erasmus University Medical Center , Rotterdam , Netherlands
| | - Claudio Nicoletti
- Gut Health and Food Safety, Institute of Food Research, Norwich, UK; Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Rudi W Hendriks
- Department of Pulmonary Medicine, Erasmus University Medical Center , Rotterdam , Netherlands
| | - Huub F J Savelkoul
- Cell Biology and Immunology Group, Wageningen University, Wageningen, Netherlands; Top Institute Food and Nutrition, Wageningen, Netherlands
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9
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van Beek AA, Hugenholtz F, Meijer B, Sovran B, Perdijk O, Vermeij WP, Brandt RMC, Barnhoorn S, Hoeijmakers JHJ, de Vos P, Leenen PJM, Hendriks RW, Savelkoul HFJ. Frontline Science: Tryptophan restriction arrests B cell development and enhances microbial diversity in WT and prematurely aging Ercc1-/Δ7 mice. J Leukoc Biol 2016; 101:811-821. [PMID: 27418353 DOI: 10.1189/jlb.1hi0216-062rr] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [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: 02/04/2016] [Revised: 06/09/2016] [Accepted: 06/14/2016] [Indexed: 12/13/2022] Open
Abstract
With aging, tryptophan metabolism is affected. Tryptophan has a crucial role in the induction of immune tolerance and the maintenance of gut microbiota. We, therefore, studied the effect of dietary tryptophan restriction in young wild-type (WT) mice (118-wk life span) and in DNA-repair deficient, premature-aged (Ercc1-/Δ7 ) mice (20-wk life span). First, we found that the effect of aging on the distribution of B and T cells in bone marrow (BM) and in the periphery of 16-wk-old Ercc1-/Δ7 mice was comparable to that in 18-mo-old WT mice. Dietary tryptophan restriction caused an arrest of B cell development in the BM, accompanied by diminished B cell frequencies in the periphery. In general, old Ercc1-/Δ7 mice showed similar responses to tryptophan restriction compared with young WT mice, indicative of age-independent effects. Dietary tryptophan restriction increased microbial diversity and made the gut microbiota composition of old Ercc1-/Δ7 mice more similar to that of young WT mice. The decreased abundances of Alistipes and Akkermansia spp. after dietary tryptophan restriction correlated significantly with decreased B cell precursor numbers. In conclusion, we report that dietary tryptophan restriction arrests B cell development and concomitantly changes gut microbiota composition. Our study suggests a beneficial interplay between dietary tryptophan, B cell development, and gut microbial composition on several aspects of age-induced changes.
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Affiliation(s)
- Adriaan A van Beek
- Top Institute Food and Nutrition, Wageningen, The Netherlands; .,Cell Biology and Immunology Group, Wageningen University, Wageningen, The Netherlands.,Department of Immunology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Floor Hugenholtz
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Laboratory of Microbiology, Wageningen University, Wageningen, The Netherlands
| | - Ben Meijer
- Cell Biology and Immunology Group, Wageningen University, Wageningen, The Netherlands
| | - Bruno Sovran
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Host-Microbe Interactomics Group, Wageningen University, Wageningen, The Netherlands
| | - Olaf Perdijk
- Cell Biology and Immunology Group, Wageningen University, Wageningen, The Netherlands
| | - Wilbert P Vermeij
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Renata M C Brandt
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Sander Barnhoorn
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Jan H J Hoeijmakers
- Department of Molecular Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Paul de Vos
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Pathology and Medical Biology, University of Groningen, Groningen, The Netherlands; and
| | - Pieter J M Leenen
- Department of Immunology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Rudi W Hendriks
- Department of Pulmonary Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Huub F J Savelkoul
- Cell Biology and Immunology Group, Wageningen University, Wageningen, The Netherlands
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10
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Sovran B, Loonen LMP, Lu P, Hugenholtz F, Belzer C, Stolte EH, Boekschoten MV, van Baarlen P, Kleerebezem M, de Vos P, Dekker J, Renes IB, Wells JM. IL-22-STAT3 pathway plays a key role in the maintenance of ileal homeostasis in mice lacking secreted mucus barrier. Inflamm Bowel Dis 2015; 21:531-42. [PMID: 25636123 DOI: 10.1097/mib.0000000000000319] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Muc2-deficient mice show no signs of ileal pathology but the mechanisms remained unknown. METHODS Wild-type (WT), Muc2, and Muc2 mice were killed at 2, 4, and 8 weeks of age. Total RNA from ileum was used for full genome transcriptome analysis and qPCR. Microbiota composition was determined using a mouse intestinal chip (MITChip). Morphological and immunohistological studies were performed on segments of ileum. RESULTS The ileum was colonized by more diverse microbiota in young (week 4) WT than in Muc2 mice, and composition was influenced by genotype. Weaning was associated with major changes in the transcriptome of all mice, and the highest number of differentially expressed genes compared with adults, reflecting temporal changes in microbiota. Although the spatial compartmentalization of bacteria was compromised in Muc2 mice, gene set enrichment analysis revealed a downregulation of Toll-like receptor, immune, and chemokine signaling pathways compared to WT mice. The predicted effects of enhanced IL-22 signaling were identified in the Muc2 transcriptome as the upregulation of epithelial cell proliferation altered expression of mitosis and cell-cycle control pathways. This is consistent with increased villus length and number of Ki67 epithelial cells in Muc2 mice. Additionally, expression of the network of IL-22 regulated defense genes, including Fut2, Reg3β, Reg3γ, Relmb, and the Defensin Defb46 were increased in Muc2 mice. CONCLUSIONS These findings highlight a role for the IL-22-STAT3 pathway in maintaining ileal homeostasis when the mucus barrier is compromised and its potential as a target for novel therapeutic strategies in inflammatory bowel disease.
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Affiliation(s)
- Bruno Sovran
- *Top Institute Food and Nutrition, Wageningen, the Netherlands; †Host-Microbe Interactomics Group, Animal Sciences Department, Wageningen University and Research Center, Wageningen, the Netherlands; ‡Department of Pediatrics, Erasmus MC-Sophia, Rotterdam, the Netherlands; §Department of Pediatrics, Academic Medical Center, Amsterdam, the Netherlands; ‖Department of Agrotechnology and Food Sciences, Laboratory of Microbiology, Wageningen University and Research Center, Wageningen, the Netherlands; ¶Department of Agrotechnology and Food Sciences, Division of Human Nutrition, Wageningen University and Research Center, Wageningen, the Netherlands; **NIZO food research, Ede, the Netherlands; ††University Medical Center of Groningen, Groningen, the Netherlands; and ‡‡Nutricia Research, Utrecht, the Netherlands
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