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Leader(s)
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Viennois Emilie
- 01 57 27 73 07
- emilie.viennois@inserm.fr
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Meinzer Ulrich
- 01 57 27 75 55
- ulrich.meinzer@inserm.fr
Host-Environment interface in chronic inflammatory disorders
Team Viennois / Meinzer
Scientific axes : Pathophysiology of inflammatory & fibrotic diseases axis
Line-up
Clinicians
Emérite
Post-doctoral fellows
Presentation
Increasing evidence has implicated a disruption of host immune-microbial interaction and luminal microbial dysbiosis – term referring to an alteration of the intestinal microbiota – in the pathogenesis of IBD and other chronic inflammatory disorders. Our research focuses on considering the intestinal interface between the outer and the inner parts of the intestine, seeking to explain how this interface operates to mediate host-microbiota interactions impacting the physiopathology of chronic inflammatory diseases. Notwithstanding our interest for IBD, we also explore other chronic inflammatory diseases related to an altered host-microbiota dialogue, such as arthritis. Both conditions are used and seen as diseases model of intestinal and extra-intestinal inflammation. Our central objective aims to understanding how the gut interface can be determining in the initiation and development of dysbiosis-associated diseases appears crucial.
Dysbiosis, early in life, has now been appreciated for its determining impact on intestinal health later in life. Several evidences made in both humans and mice indicate that individuals having a reduced contact with lives microbes, develop a pathological imprinting to IBD and to other chronic disorders such as rheumatoid arthritis later in life. In contrast, higher bacterial diversity in early life prevents illness development in adulthood. Therefore, our project focuses on both early events and those at the time of the disease.
Our fundamental question, fueled by clinical observations, is addressed according to three axes:
1) Explore how the outside world (environment, microbiota, diet) does impact the interface (OUTER). In an ongoing prospective exposed/non-exposed study, « MIKINAUTEs », we seek to understand how exogenous factors (food and exposome) can influence relapse and/or remission in IBD.
2) Understanding the interface itself (INTERFACE) with a special focus on intestinal miRNA and their role in host-microbiota interaction and more generally intestinal homeostasis.
3) Examine how the deregulation of the interface does impact distant organs potentially leading to extra-intestinal pathologies (INNER) such as arthritis. This axe seeks to determine how alterations of the intestinal barrier function and bacterial translocation can promote IBD, and similarly arthritis, and autoimmunity in genetically predisposed hosts.
Landmark publications
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Publication date : 05 December 2024 More
Scurvy incidence trend among children hospitalised in France, 2015–2023: a population-based interrupted time-series analysis
Lancet Reg Health Eur.
Authors : Zein Assad Maelle Trad Zaba Valtuille Cécile Dumaine Albert Faye Tania Ikowsky Florentia Kaguelidou Lindsay Osei Naim Ouldali Meinzer Ulrich
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Publication date : 12 October 2024 More
Entamoeba muris mitigates metabolic consequences of high-fat diet in mice
Gut Microbes.
Authors : Roy Maryline Dumay Anne Sandrine Adiba Sylvana Rozes Seiki Kobayashi Paradis Valérie Catherine Postic Dominique Rainteau Ogier-Denis Eric Le Gall Maude Meinzer Ulrich Viennois Emilie Casado-Bedmar Maite Alexis Mosca Hugot Jean-Pierre
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Publication date : 02 September 2024 More
Fecal let-7b and miR-21 directly modulate the intestinal microbiota, driving chronic inflammation
Gut Microbes.
Authors : Casado-Bedmar Maite Roy Maryline Berthet Louis Hugot Jean-Pierre Chunhua Yang Manceau Hana Katell Peoc'h Benoit Chassaing Didier Merlin Viennois Emilie
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Publication date : 05 September 2023 More
Food additive emulsifiers and risk of cardiovascular disease in the NutriNet-Santé cohort: prospective cohort study
BMJ.
Authors : Laury Sellem Bernard Srour Guillaume Javaux Eloi Chazelas Benoit Chassaing Viennois Emilie Charlotte Debras Clara Salamé Nathalie Druesne-Pecollo Younes Esseddik Fabien Szabo de Edelenyi Cédric Agaësse Alexandre De Sa Rebecca Lutchia Erwan Louveau Inge Huybrechts Fabrice Pierre Xavier Coumoul Léopold K Fezeu Chantal Julia Emmanuelle Kesse-Guyot Benjamin Allès Pilar Galan Serge Hercberg Mélanie Deschasaux-Tanguy Mathilde Touvier
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Publication date : 20 August 2023 More
Increased Incidence of Pediatric Uveitis Associated with the COVID-19 Pandemic Occurring Before COVID-19 Vaccine Implementation: A Time-Series Analysis
J Pediatr.
Authors : Céline Lafay Zein Assad Naïm Ouldali Emmanuel Bui Quoc Ana Clement Capucine Durand Selim Fares Albert Faye Laurye-Anne Eveillard Florentia Kaguelidou Cherif Titah Zaba Valtuille Caroline Vinit Meinzer Ulrich Cécile Dumaine
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Publication date : 05 July 2023 More
Calculating the fraction of Kawasaki disease potentially attributable to seasonal pathogens: a time series analysis
EClinicalMedicine.
Authors : Zaba Valtuille Alain Lefevre-Utile Naim Ouldali Constance Beyler Priscilla Boizeau Cécile Dumaine Arthur Felix Zein Assad Albert Faye Isabelle Melki Florentia Kaguelidou Meinzer Ulrich
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Publication date : 19 June 2023 More
The Effect of Sex-Specific Differences on IL-10−/− Mouse Colitis Phenotype and Microbiota
Int. J. Mol. Sci.
Authors : Casado-Bedmar Maite Roy Maryline Viennois Emilie
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Publication date : 31 December 2022 More
Role of adherent and invasive Escherichia coli in Crohn’s disease: lessons from the postoperative recurrence model
Gut.
Authors : Anthony Buisson Harry Sokol Nassim Hammoudi Stéphane Nancey Treton Xavier Maria Nachury Mathurin Fumery Xavier Hébuterne Michael Rodrigues Hugot Jean-Pierre Gilles Boschetti Carmen Stefanescu Pauline Wils Philippe Seksik Lionel Le Bourhis Madeleine Bezault Pierre Sauvanet Bruno Pereira Matthieu Allez Nicolas Barnich Remind study group
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Publication date : 31 October 2022 More
The Appendix Orchestrates T-Cell Mediated Immunosurveillance in Colitis-Associated Cancer
Cell Mol Gastroenterol Hepatol.
Authors : Collard Maxime Tourneur--Marsille Julien Mathieu Uzzan Albuquerque Miguel Roy Maryline Dumay Anne Jean-Noël Freund Hugot Jean-Pierre Guedj Nathalie Treton Xavier Panis Yves Ogier-Denis Eric
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Publication date : 05 October 2020 More
Dietary Emulsifiers Directly Impact AdherentInvasive E. coli Gene Expression to Drive Chronic Intestinal Inflammation
Cell Reports
Authors : Viennois Emilie Alexis Bretin Philip E. Dube Alexander C. Maue Charle` ne J.G. Dauriat Nicolas Barnich Andrew T. Gewirtz Benoit Chassaing
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Publication date : 18 June 2020 More
Nod2 Protects the Gut From Experimental Colitis Spreading to Small Intestine
J Crohns Colitis
Authors : Al Nabhani Z Berrebi D Martinez-Vinson C Montcuquet N Madre C Roy Maryline Ogier-Denis Eric Dussaillant M Cerf-Bensussan N Zouali H Daniel F Barreau F Hugot Jean-Pierre
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Publication date : 09 April 2020 More
Immune-checkpoint inhibitor anti-PD1 aggravates colitis-associated colorectal cancer without enhancing intestinal inflammation
Integrative Cancer Science and Therapeutics
Authors : Collard Maxime Guedj Nathalie Tourneur--Marsille Julien Albuquerque Miguel Maggiori Leon Hammel Pascal Treton Xavier Panis Yves Ogier-Denis Eric
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Publication date : 30 September 2019 More
Is Crohn’s Disease the Price to Pay Today for Having Survived the Black Death?
Journal of Crohn's and Colitis.
Authors : Dumay Anne Gergaud Olivier Roy Maryline Hugot Jean-Pierre
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Publication date : 16 July 2019 More
Comparative performances of machine learning methods for classifying Crohn Disease patients using genome-wide genotyping data.
Sci Rep.
Authors : Romagnoni Alberto Jégou S Van Steen K Wainrib G Hugot Jean-Pierre International Inflammatory Bowel Disease Genetics Consortium (IIBDGC)
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Publication date : 29 April 2019 More
Control of anterior GRadient 2 (AGR2) dimerization links endoplasmic reticulum proteostasis to inflammation
EMBO Mol Med
Authors : Maurel M Obacz J Avril T Ding YP Papadodima O Treton Xavier Daniel F Pilalis E Hörberg J Hou W Beauchamp MC Tourneur--Marsille Julien Cazals-Hatem Dominique Sommerova L Samali A Tavernier J Hrstka R Dupont A Fessart D Delom F Fernandez-Zapico ME Jansen G Eriksson LA Thomas DY Jerome-Majewska L Hupp T Chatziioannou A Chevet E Ogier-Denis Eric
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Publication date : 07 May 2012 More
Yersinia pseudotuberculosis disrupts intestinal barrier integrity through hematopoietic TLR-2 signaling
J Clin Invest.
Authors : Jung C Meinzer Ulrich Montcuquet N Thachil E Château D Thiébaut R Roy Maryline Alnabhani Z Berrebi D Dussaillant M Pedruzzi E Thenet S Cerf-Bensussan N Hugot Jean-Pierre Barreau F
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Publication date : 30 April 2012 More
Abnormal Activation of Autophagy-Induced Crinophagy in Paneth Cells from Patients with Crohn’s Disease Short title: Crinophagy in Crohn’s disease
Gastroenterology.
Authors : Thachil E Hugot Jean-Pierre Arbeille B Paris R Grodet A Peuchmaur M Codogno P Barreau F Ogier-Denis Eric Berrebi D Viala Jérome
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Publication date : 31 August 2011 More
Altered endoplasmic reticulum stress affects translation in inactive colon tissue from patients with ulcerative colitis
Gastroenterology.
Authors : Treton Xavier Pédruzzi E Cazals-Hatem Dominique Grodet A Panis Yves Groyer A Moreau Richard Bouhnik Yoram Daniel F Ogier-Denis Eric
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Publication date : 12 December 2003 More
Crohn Disease : the cold chain hypothesis
Lancet
Authors : Hugot Jean-Pierre Alberti C Berrebi D Bingen E Cézard JP
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Publication date : 30 May 2001 More
Association of Nod-2 leucine-rich repeat variants with susceptibility to Crohn’s disease
Nature
Authors : Hugot Jean-Pierre Chamaillard M Zouali H Lesage S Cézard JP Belaiche J Almer S Tysk C O'Morain CA Gassull M Binder V Finkel Y Cortot A Modigliani R Laurent-Puig P Gower-Rousseau C Macry J Colombel JF Sahbatou M Thomas G