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de Oliveira Alves N, Dalmasso G, Nikitina D, Vaysse A, Ruez R, Ledoux L, Pedron T, Bergsten E, Boulard O, Autier L, Allam S, Motreff L, Sauvanet P, Letourneur D, Kashyap P, Gagnière J, Pezet D, Godfraind C, Salzet M, Lemichez E, Bonnet M, Najjar I, Malabat C, Monot M, Mestivier D, Barnich N, Yadav P, Fournier I, Kennedy S, Mettouchi A, Bonnet R, Sobhani I, Chamaillard M. The colibactin-producing Escherichia coli alters the tumor microenvironment to immunosuppressive lipid overload facilitating colorectal cancer progression and chemoresistance. Gut Microbes 2024; 16:2320291. [PMID: 38417029 PMCID: PMC10903627 DOI: 10.1080/19490976.2024.2320291] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 02/14/2024] [Indexed: 03/01/2024] Open
Abstract
Intratumoral bacteria flexibly contribute to cellular and molecular tumor heterogeneity for supporting cancer recurrence through poorly understood mechanisms. Using spatial metabolomic profiling technologies and 16SrRNA sequencing, we herein report that right-sided colorectal tumors are predominantly populated with Colibactin-producing Escherichia coli (CoPEC) that are locally establishing a high-glycerophospholipid microenvironment with lowered immunogenicity. It coincided with a reduced infiltration of CD8+ T lymphocytes that produce the cytotoxic cytokines IFN-γ where invading bacteria have been geolocated. Mechanistically, the accumulation of lipid droplets in infected cancer cells relied on the production of colibactin as a measure to limit genotoxic stress to some extent. Such heightened phosphatidylcholine remodeling by the enzyme of the Land's cycle supplied CoPEC-infected cancer cells with sufficient energy for sustaining cell survival in response to chemotherapies. This accords with the lowered overall survival of colorectal patients at stage III-IV who were colonized by CoPEC when compared to patients at stage I-II. Accordingly, the sensitivity of CoPEC-infected cancer cells to chemotherapies was restored upon treatment with an acyl-CoA synthetase inhibitor. By contrast, such metabolic dysregulation leading to chemoresistance was not observed in human colon cancer cells that were infected with the mutant strain that did not produce colibactin (11G5∆ClbQ). This work revealed that CoPEC locally supports an energy trade-off lipid overload within tumors for lowering tumor immunogenicity. This may pave the way for improving chemoresistance and subsequently outcome of CRC patients who are colonized by CoPEC.
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Affiliation(s)
| | - Guillaume Dalmasso
- Microbes, Intestin, Inflammation et Susceptibilité de l’Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Darja Nikitina
- CNRS, Institute Pasteur, Paris, France
- Laboratory of Clinical and Molecular Gastroenterology, Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Amaury Vaysse
- Institut Pasteur, Université Paris Cité, Bioinformatics and Biostatistics Hub, Plate-Forme Technologique Biomics, Paris, France
| | - Richard Ruez
- ONCOLille, INSERM, Phycell, University of Lille, Lille, France
| | - Lea Ledoux
- Réponse Inflammatoire et Spectrométrie de Masse-PRISM, University of Lille, Lille, France
| | | | - Emma Bergsten
- Institut Pasteur, Université Paris Cité, Paris, France
| | - Olivier Boulard
- ONCOLille, INSERM, Phycell, University of Lille, Lille, France
| | - Lora Autier
- ONCOLille, INSERM, Phycell, University of Lille, Lille, France
| | - Sofian Allam
- ONCOLille, INSERM, Phycell, University of Lille, Lille, France
| | - Laurence Motreff
- Institut Pasteur, Université Paris Cité, Bioinformatics and Biostatistics Hub, Plate-Forme Technologique Biomics, Paris, France
| | - Pierre Sauvanet
- Microbes, Intestin, Inflammation et Susceptibilité de l’Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
| | | | - Pragya Kashyap
- Department of Bioscience & Bioengineering, Indian Institute of Technology, Jodhpur, Rajasthan, India
| | - Johan Gagnière
- Microbes, Intestin, Inflammation et Susceptibilité de l’Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Denis Pezet
- Microbes, Intestin, Inflammation et Susceptibilité de l’Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Catherine Godfraind
- Microbes, Intestin, Inflammation et Susceptibilité de l’Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Michel Salzet
- Réponse Inflammatoire et Spectrométrie de Masse-PRISM, University of Lille, Lille, France
| | | | - Mathilde Bonnet
- Microbes, Intestin, Inflammation et Susceptibilité de l’Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Imène Najjar
- Institut Pasteur, Université Paris Cité, Bioinformatics and Biostatistics Hub, Plate-Forme Technologique Biomics, Paris, France
| | - Christophe Malabat
- Institut Pasteur, Université Paris Cité, Bioinformatics and Biostatistics Hub, Plate-Forme Technologique Biomics, Paris, France
| | - Marc Monot
- Institut Pasteur, Université Paris Cité, Bioinformatics and Biostatistics Hub, Plate-Forme Technologique Biomics, Paris, France
| | | | - Nicolas Barnich
- Microbes, Intestin, Inflammation et Susceptibilité de l’Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Pankaj Yadav
- Department of Bioscience & Bioengineering, Indian Institute of Technology, Jodhpur, Rajasthan, India
| | - Isabelle Fournier
- Réponse Inflammatoire et Spectrométrie de Masse-PRISM, University of Lille, Lille, France
| | | | | | - Richard Bonnet
- Microbes, Intestin, Inflammation et Susceptibilité de l’Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Iradj Sobhani
- Université Paris Est Créteil, Créteil, France
- Service de Gastroentérologie CHU Henri Mondor, Assistance Publique des Hôpitaux de Paris-APHP, Créteil, France
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2
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Dalmasso G, Cougnoux A, Faïs T, Bonnin V, Mottet-Auselo B, Nguyen HT, Sauvanet P, Barnich N, Jary M, Pezet D, Delmas J, Bonnet R. Colibactin-producing Escherichia coli enhance resistance to chemotherapeutic drugs by promoting epithelial to mesenchymal transition and cancer stem cell emergence. Gut Microbes 2024; 16:2310215. [PMID: 38374654 PMCID: PMC10880512 DOI: 10.1080/19490976.2024.2310215] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 01/22/2024] [Indexed: 02/21/2024] Open
Abstract
Human colorectal cancers (CRCs) are readily colonized by colibactin-producing E. coli (CoPEC). CoPEC induces DNA double-strand breaks, DNA mutations, genomic instability, and cellular senescence. Infected cells produce a senescence-associated secretory phenotype (SASP), which is involved in the increase in tumorigenesis observed in CRC mouse models infected with CoPEC. This study investigated whether CoPEC, and the SASP derived from CoPEC-infected cells, impacted chemotherapeutic resistance. Human intestinal epithelial cells were infected with the CoPEC clinical 11G5 strain or with its isogenic mutant, which is unable to produce colibactin. Chemotherapeutic resistance was assessed in vitro and in a xenograft mouse model. Expressions of cancer stem cell (CSC) markers in infected cells were investigated. Data were validated using a CRC mouse model and human clinical samples. Both 11G5-infected cells, and uninfected cells incubated with the SASP produced by 11G5-infected cells exhibited an increased resistance to chemotherapeutic drugs in vitro and in vivo. This finding correlated with the induction of the epithelial to mesenchymal transition (EMT), which led to the emergence of cells exhibiting CSC features. They grew on ultra-low attachment plates, formed colonies in soft agar, and overexpressed several CSC markers (e.g. CD133, OCT-3/4, and NANOG). In agreement with these results, murine and human CRC biopsies colonized with CoPEC exhibited higher expression levels of OCT-3/4 and NANOG than biopsies devoid of CoPEC. Conclusion: CoPEC might aggravate CRCs by inducing the emergence of cancer stem cells that are highly resistant to chemotherapy.
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Affiliation(s)
- Guillaume Dalmasso
- Inserm U1071, USC-INRAe INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Antony Cougnoux
- Inserm U1071, USC-INRAe INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Tiphanie Faïs
- Inserm U1071, USC-INRAe INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
- Laboratoire de Bactériologie, Centre Hospitalier Universitaire, Clermont-Ferrand, France
| | - Virginie Bonnin
- Inserm U1071, USC-INRAe INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Benoit Mottet-Auselo
- Inserm U1071, USC-INRAe INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
- Laboratoire de Bactériologie, Centre Hospitalier Universitaire, Clermont-Ferrand, France
| | - Hang Tt Nguyen
- Inserm U1071, USC-INRAe INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Pierre Sauvanet
- Inserm U1071, USC-INRAe INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
- Centre de référence de la résistance aux antibiotiques, Centre Hospitalier Universitaire, Clermont-Ferrand, France
| | - Nicolas Barnich
- Inserm U1071, USC-INRAe INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Marine Jary
- Inserm U1071, USC-INRAe INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
- Service de Chirurgie Digestive, Centre Hospitalier Universitaire, Clermont-Ferrand, France
| | - Denis Pezet
- Inserm U1071, USC-INRAe INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
- Service de Chirurgie Digestive, Centre Hospitalier Universitaire, Clermont-Ferrand, France
| | - Julien Delmas
- Inserm U1071, USC-INRAe INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
- Laboratoire de Bactériologie, Centre Hospitalier Universitaire, Clermont-Ferrand, France
| | - Richard Bonnet
- Inserm U1071, USC-INRAe INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Centre de Recherche en Nutrition Humaine Auvergne, Université Clermont Auvergne, Clermont-Ferrand, France
- Laboratoire de Bactériologie, Centre Hospitalier Universitaire, Clermont-Ferrand, France
- Centre de référence de la résistance aux antibiotiques, Centre Hospitalier Universitaire, Clermont-Ferrand, France
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3
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Buisson A, Sokol H, Hammoudi N, Nancey S, Treton X, Nachury M, Fumery M, Hébuterne X, Rodrigues M, Hugot JP, Boschetti G, Stefanescu C, Wils P, Seksik P, Le Bourhis L, Bezault M, Sauvanet P, Pereira B, Allez M, Barnich N. Role of adherent and invasive Escherichia coli in Crohn's disease: lessons from the postoperative recurrence model. Gut 2023; 72:39-48. [PMID: 35361684 DOI: 10.1136/gutjnl-2021-325971] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [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: 08/24/2021] [Accepted: 03/10/2022] [Indexed: 02/04/2023]
Abstract
OBJECTIVE We used the postoperative recurrence model to better understand the role of adherent and invasive Escherichia coli (AIEC) bacteria in Crohn's disease (CD), taking advantage of a well-characterised postoperative cohort. DESIGN From a prospective, multicentre cohort of operated patients with CD, AIEC identification was performed within the surgical specimen (M0) (N=181 patients) and the neoterminal ileum (n=119 patients/181) during colonoscopy performed 6 months after surgery (M6). Endoscopic postoperative recurrence was graded using Rutgeerts' index. The mucosa-associated microbiota was analysed by 16S sequencing at M0 and M6. Relative risks or ORs were adjusted on potential confounders. RESULTS AIEC prevalence was twofold higher within the neoterminal ileum at M6 (30.3%) than within the surgical specimen (14.9%) (p<0.001). AIEC within the neoterminal ileum at M6 was associated with higher rate of early ileal lesions (i1) (41.6% vs 17.1%; aRR 3.49 (95% CI 1.01 to 12.04), p=0.048) or ileal lesions (i2b+i3) (38.2% vs 17.1%; aRR 3.45 (95% CI 1.06 to 11.30), p=0.040) compared with no lesion (i0). AIEC within the surgical specimen was predictive of higher risk of i2b-endoscopic postoperative recurrence (POR) (aOR 2.54 (95% CI 1.01 to 6.44), p=0.049) and severe endoscopic POR (aOR 3.36 (95% CI 1.25 to 9.06), p=0.017). While only 5.0% (6/119) of the patients were AIEC-positive at both M0 and M6, 43.7% (52/119), patients with history of positive test for AIEC (M0 or M6) had higher risk of ileal endoscopic POR (aOR 2.32 (95% CI 1.01 to 5.39), p=0.048)), i2b-endoscopic postoperative recurrence (aOR 2.41 (95% CI 1.01 to 5.74); p=0.048) and severe endoscopic postoperative (aOR=3.84 (95% CI 1.32 to 11.18), p=0.013). AIEC colonisation was associated with a specific microbiota signature including increased abundance of Ruminococcus gnavus. CONCLUSION Based on the postoperative recurrence model, our data support the idea that AIEC are involved in the early steps of ileal CD. TRIAL REGISTRATION NUMBER NCT03458195.
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Affiliation(s)
- Anthony Buisson
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), UMR 1071, USC INRAE 2018, Clermont-Ferrand, France .,Université Clermont Auvergne, Inserm, 3iHP, CHU Clermont-Ferrand, Service d'Hépato-Gastroentérologie, Clermont-Ferrand, France
| | - Harry Sokol
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Gastroenterology department, F-75012 Paris, France.,Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France.,INRAE, UMR1319 Micalis, AgroParisTech, Jouy-en-Josas, France
| | - Nassim Hammoudi
- Gastroenterology Department, Hôpital Saint-Louis hospital, Assitance Publique-Hôpitaux de Paris (AP-HP), Paris, France.,Université De Paris, Institut de Recherche Saint-Louis, EMily, INSERM U1160, F-75010, Paris, France
| | - Stéphane Nancey
- Gastroenterology Department, Centre Hospitalier Lyon-Sud, Pierre-Benite, France
| | - Xavier Treton
- Gastroenterology Department, Hôpital Beaujon, MICI et Assistance Nutritive, APHP, Paris, France
| | - Maria Nachury
- Univ. Lille, Inserm, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, F-59000 Lille, France
| | - Mathurin Fumery
- Hepatogastroenterology department, Amiens University Hospital, an Peritox, UMR-I 01, University Amiens, Amiens, France
| | - Xavier Hébuterne
- Gastroenterology and Clinical Nutrition, CHU of Nice and University Côte d'Azur Nice, Nice, France
| | - Michael Rodrigues
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), UMR 1071, USC INRAE 2018, Clermont-Ferrand, France
| | - Jean-Pierre Hugot
- Centre de recherche sur l'inflammation; INSERM UMR 1149; Assistance Publique-Hôpitaux de Paris; Université de Paris, F-75018 Paris, France
| | - Gilles Boschetti
- Gastroenterology Department, Centre Hospitalier Lyon-Sud, Pierre-Benite, France
| | - Carmen Stefanescu
- Gastroenterology Department, Hôpital Beaujon, MICI et Assistance Nutritive, APHP, Paris, France
| | - Pauline Wils
- Univ. Lille, Inserm, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, F-59000 Lille, France
| | - Philippe Seksik
- Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Saint Antoine Hospital, Gastroenterology department, F-75012 Paris, France.,Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Lionel Le Bourhis
- Université De Paris, Institut de Recherche Saint-Louis, EMily, INSERM U1160, F-75010, Paris, France
| | | | - Pierre Sauvanet
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), UMR 1071, USC INRAE 2018, Clermont-Ferrand, France.,Chirurgie digestive, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Bruno Pereira
- Biostatistics Unit, University Hospital, DRCI, Clermont-Ferrand, France
| | - Matthieu Allez
- Gastroenterology Department, Hôpital Saint-Louis hospital, Assitance Publique-Hôpitaux de Paris (AP-HP), Paris, France.,Université De Paris, Institut de Recherche Saint-Louis, EMily, INSERM U1160, F-75010, Paris, France
| | - Nicolas Barnich
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), UMR 1071, USC INRAE 2018, Clermont-Ferrand, France
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Chervy M, Sivignon A, Dambrine F, Buisson A, Sauvanet P, Godfraind C, Allez M, Le Bourhis L, The Remind Group, Barnich N, Denizot J. Epigenetic master regulators HDAC1 and HDAC5 control pathobiont Enterobacteria colonization in ileal mucosa of Crohn's disease patients. Gut Microbes 2022; 14:2127444. [PMID: 36175163 PMCID: PMC9542275 DOI: 10.1080/19490976.2022.2127444] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
AIEC Adherent-Invasive Escherichia coli; BSA Bovine serum albumin; CD Crohn's disease; CEABAC10 Carcinoembryonic antigen bacterial artificial chromosome 10; CEACAM Carcinoembryonic antigen-related cell adhesion molecule; FBS Fetal bovine serum; IBD Inflammatory Bowel Disease; HAT Histone acetyltransferase; HDAC Histone deacetylase; kDa KiloDalton; SAHA Suberoylanilide Hydroxamic Acid; Scr Scramble.
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Affiliation(s)
- Mélissa Chervy
- Université Clermont Auvergne, Inserm U1071, USC-INRAE 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
| | - Adeline Sivignon
- Université Clermont Auvergne, Inserm U1071, USC-INRAE 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France,Institut Universitaire de Technologie, Génie Biologique, Aubière, France
| | - Flavie Dambrine
- Université Clermont Auvergne, Inserm U1071, USC-INRAE 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
| | - Anthony Buisson
- Université Clermont Auvergne, Inserm U1071, USC-INRAE 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France,Gastroenterology Department, CHU Estaing, Clermont-Ferrand, France
| | - Pierre Sauvanet
- Université Clermont Auvergne, Inserm U1071, USC-INRAE 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France,Surgery and Oncology Digestive Department, CHU Estaing, Clermont-Ferrand, France
| | - Catherine Godfraind
- Université Clermont Auvergne, Inserm U1071, USC-INRAE 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France,Neuropathology Unit, CHU Gabriel Montpied, Clermont-Ferrand, France
| | - Matthieu Allez
- Gastroenterology Department, Hôpital Saint-Louis - APHP, Paris, France,Université De Paris, Institut de Recherche Saint-Louis, EMily, INSERM U1160, Paris, France,Hôpital Saint-Louis, Paris, France
| | - Lionel Le Bourhis
- Université De Paris, Institut de Recherche Saint-Louis, EMily, INSERM U1160, Paris, France
| | | | - Nicolas Barnich
- Université Clermont Auvergne, Inserm U1071, USC-INRAE 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France,Institut Universitaire de Technologie, Génie Biologique, Aubière, France
| | - Jérémy Denizot
- Université Clermont Auvergne, Inserm U1071, USC-INRAE 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France,Institut Universitaire de Technologie, Génie Biologique, Aubière, France,CONTACT Jérémy Denizot M2iSH, UMR 1071 Inserm/Université Clermont Auvergne, CBRV, 28 place Henri Dunant, Clermont-Ferrand63001, France
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5
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Douadi C, Vazeille E, Chambon C, Hébraud M, Fargeas M, Dodel M, Coban D, Pereira B, Birer A, Sauvanet P, Buisson A, Barnich N. Anti-TNF Agents Restrict Adherent-invasive Escherichia coli Replication Within Macrophages Through Modulation of Chitinase 3-like 1 in Patients with Crohn's Disease. J Crohns Colitis 2022; 16:1140-1150. [PMID: 35022663 DOI: 10.1093/ecco-jcc/jjab236] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 12/01/2021] [Accepted: 01/11/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS The mechanism of action of anti-tumour necrosis factor [anti-TNF] agents could implicate macrophage modulation in Crohn's disease [CD]. As CD macrophages are defective in controlling CD-associated adherent-invasive Escherichia coli [AIEC], anti-TNF agents could limit AIEC replication within macrophages. We assessed the effect of anti-TNF agents on AIEC survival within monocyte-derived macrophages [MDMs] from CD patients and attempted to identify the proteins involved. METHODS Peripheral blood MDMs were obtained from 44 CD patients [22 with and 22 without anti-TNF agents]. MDMs were infected with reference strain AIEC-LF82. Proteomic analysis was performed before and 6 h after AIEC-LF82 infection. RESULTS AIEC-LF82 survival was lower in MDMs from CD patients receiving anti-TNF agents compared to those who did not [-73%, p = 0.006]. After AIEC-LF82 infection, the levels of CD82 [p = 0.007], ILF3 [Interleukin enhancer-binding factor 3; p = 0.001], FLOT-1 [Flotillin-1; p = 0.007] and CHI3L1 [Chitinase 3-like 1; p = 0.035] proteins were different within CD-MDMs depending on anti-TNF exposure. FLOT-1 [ϱ = -0.44; p = 0.038] and CHI3L1 [ϱ = 0.57, p = 0.006] levels were inversely and positively correlated with AIEC survival within MDMs from CD patients with or without anti-TNF, respectively. We observed a dose-dependent decrease of AIEC-LF82 survival after adjunction of anti-TNF within MDMs, inducing an increase of FLOT-1 and decrease of CHI3L1 mRNA levels. Neutralization of intra-macrophagic CHI3L1 protein using anti-CHI3L1 antibodies reduced AIEC survival within macrophages 6 h after infection [p < 0.05]. CONCLUSION Anti-TNF agents are able to restrict replication of pathobionts, such as AIEC, within macrophages by modulating FLOT-1 and CHI3L1 expression in CD patients.
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Affiliation(s)
- Clara Douadi
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), UMR 1071 Inserm/Université Clermont Auvergne, USC INRAE 2018, Clermont-Ferrand, France
| | - Emilie Vazeille
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), UMR 1071 Inserm/Université Clermont Auvergne, USC INRAE 2018, Clermont-Ferrand, France.,Gastroenterology Department, CHU Estaing, Clermont-Ferrand, France
| | - Christophe Chambon
- INRAE, Plateforme d'Exploration du Métabolisme, composante protéomique (PFEMcp), Saint-Genès-Champanelle, France
| | - Michel Hébraud
- INRAE, Plateforme d'Exploration du Métabolisme, composante protéomique (PFEMcp), Saint-Genès-Champanelle, France.,Université Clermont Auvergne, INRAE, UMR Microbiologie Environnement digestif Santé (MEDiS), Saint-Genès-Champanelle, France
| | - Margot Fargeas
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), UMR 1071 Inserm/Université Clermont Auvergne, USC INRAE 2018, Clermont-Ferrand, France
| | - Marie Dodel
- Gastroenterology Department, CHU Estaing, Clermont-Ferrand, France
| | - Dilek Coban
- Gastroenterology Department, CHU Estaing, Clermont-Ferrand, France
| | - Bruno Pereira
- Biostatistic Unit, CHU Estaing, Clermont-Ferrand, France
| | - Aurélien Birer
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), UMR 1071 Inserm/Université Clermont Auvergne, USC INRAE 2018, Clermont-Ferrand, France.,Centre National de Référence de la Résisitance aux antibiotiques, service de Bactériologie, CHU Gabriel-Montpied, Clermont-Ferrand, France
| | - Pierre Sauvanet
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), UMR 1071 Inserm/Université Clermont Auvergne, USC INRAE 2018, Clermont-Ferrand, France.,Surgery and Oncology Digestive Department, CHU Estaing, Clermont-Ferrand, France
| | - Anthony Buisson
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), UMR 1071 Inserm/Université Clermont Auvergne, USC INRAE 2018, Clermont-Ferrand, France.,Gastroenterology Department, CHU Estaing, Clermont-Ferrand, France
| | - Nicolas Barnich
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), UMR 1071 Inserm/Université Clermont Auvergne, USC INRAE 2018, Clermont-Ferrand, France
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6
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Muranishi Y, Parry L, Vachette-Dit-Martin M, Saez F, Coudy-Gandilhon C, Sauvanet P, Volle DH, Tournayre J, Bottari S, Carpentiero F, Martinez G, Muroňová J, Escoffier J, Bruhat A, Maurin AC, Averous J, Arnoult C, Fafournoux P, Jousse C. When idiopathic male infertility is rooted in maternal malnutrition during the perinatal period in mice. Biol Reprod 2021; 106:463-476. [PMID: 34875016 DOI: 10.1093/biolre/ioab222] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 11/18/2021] [Accepted: 12/02/2021] [Indexed: 11/14/2022] Open
Abstract
Infertility represents a growing burden worldwide, with one in seven couples presenting difficulties conceiving. Amongst these, 10-15% of the men have idiopathic infertility that does not correlate with any defect in the classical sperm parameters measured. In the present study, we used a mouse model to investigate the effects of maternal undernutrition on fertility in male progeny. Our results indicate that mothers fed on a low protein diet during gestation and lactation produce male offspring with normal sperm morphology, concentration and motility but exhibiting an overall decrease of fertility when they reach adulthood. Particularly, in contrast to control, sperm from these offspring show a remarkable lower capacity to fertilize oocytes when copulation occurs early in the estrus cycle relative to ovulation, due to an altered sperm capacitation. Our data demonstrate for the first time that maternal nutritional stress can have long-term consequences on the reproductive health of male progeny by affecting sperm physiology, especially capacitation, with no observable impact on spermatogenesis and classical quantitative and qualitative sperm parameters. Moreover, our experimental model could be of major interest to study, explain, and ultimately treat certain categories of infertilities.
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Affiliation(s)
- Yuki Muranishi
- Unité de Nutrition Humaine, INRAE, Université Clermont Auvergne, UMR1019, F-63000 Clermont-Ferrand, France.,Department of Life and Food Sciences, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
| | - Laurent Parry
- Unité de Nutrition Humaine, INRAE, Université Clermont Auvergne, UMR1019, F-63000 Clermont-Ferrand, France
| | | | - Fabrice Saez
- GReD Institute, Université Clermont Auvergne, Inserm, CNRS, Clermont-Ferrand, France
| | - Cécile Coudy-Gandilhon
- Unité de Nutrition Humaine, INRAE, Université Clermont Auvergne, UMR1019, F-63000 Clermont-Ferrand, France
| | - Pierre Sauvanet
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France.,Service de chirurgie et hépatobiliaire, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - David H Volle
- Inserm U1103, CNRS UMR6293-Université Clermont Auvergne, Institute Genetic, Reproduction and Development, Team "Environment, Metabolism, Spermatogenesis and Pathophysiology & Inheritance", Clermont-Ferrand, France
| | - Jérémy Tournayre
- Unité de Nutrition Humaine, INRAE, Université Clermont Auvergne, UMR1019, F-63000 Clermont-Ferrand, France
| | | | - Francesca Carpentiero
- Université Grenoble Alpes, Grenoble, France.,Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, Grenoble, France
| | - Guillaume Martinez
- Université Grenoble Alpes, Grenoble, France.,Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, Grenoble, France.,Hôpital Couple-Enfant, Centre Hospitalier Universitaire de Grenoble, UM de Génétique Chromosomique, Grenoble, France
| | - Jana Muroňová
- Université Grenoble Alpes, Grenoble, France.,Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, Grenoble, France
| | - Jessica Escoffier
- Université Grenoble Alpes, Grenoble, France.,Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, Grenoble, France
| | - Alain Bruhat
- Unité de Nutrition Humaine, INRAE, Université Clermont Auvergne, UMR1019, F-63000 Clermont-Ferrand, France
| | - Anne-Catherine Maurin
- Unité de Nutrition Humaine, INRAE, Université Clermont Auvergne, UMR1019, F-63000 Clermont-Ferrand, France
| | - Julien Averous
- Unité de Nutrition Humaine, INRAE, Université Clermont Auvergne, UMR1019, F-63000 Clermont-Ferrand, France
| | - Christophe Arnoult
- Université Grenoble Alpes, Grenoble, France.,Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, Grenoble, France
| | - Pierre Fafournoux
- Unité de Nutrition Humaine, INRAE, Université Clermont Auvergne, UMR1019, F-63000 Clermont-Ferrand, France
| | - Céline Jousse
- Unité de Nutrition Humaine, INRAE, Université Clermont Auvergne, UMR1019, F-63000 Clermont-Ferrand, France
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7
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Salesse L, Lucas C, Hoang MHT, Sauvanet P, Rezard A, Rosenstiel P, Damon-Soubeyrand C, Barnich N, Godfraind C, Dalmasso G, Nguyen HTT. Colibactin-Producing Escherichia coli Induce the Formation of Invasive Carcinomas in a Chronic Inflammation-Associated Mouse Model. Cancers (Basel) 2021; 13:cancers13092060. [PMID: 33923277 PMCID: PMC8123153 DOI: 10.3390/cancers13092060] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 04/21/2021] [Indexed: 01/18/2023] Open
Abstract
Simple Summary Changes in the composition of the intestinal flora have been reported in patients with colorectal cancer, the second leading cause of cancer death in the world, with an increase in so-called "harmful" bacteria. Among these, Escherichia coli producing colibactin, a toxin that causes DNA damage, has attracted the interest of many research groups. Here, we showed that infection of wild-type mice with a colibactin-producing E. coli (CoPEC) strain, isolated from a patient with colorectal cancer, combined with chronic inflammation induced the formation of invasive colonic tumors, i.e., tumors that spread beyond epithelial layer and grow into surrounding tissues. We also showed that autophagy, a cell defense process, is necessary to inhibit the tumorigenesis induced by CoPEC. Thus, this work highlights the role of CoPEC as a driver of colorectal cancer development, and suggests that targeting autophagy could be a promising strategy to inhibit the protumoral effects of these bacteria. Abstract Background: Escherichia coli producing the genotoxin colibactin (CoPEC or colibactin-producing E. coli) abnormally colonize the colonic mucosa of colorectal cancer (CRC) patients. We previously showed that deficiency of autophagy in intestinal epithelial cells (IECs) enhances CoPEC-induced colorectal carcinogenesis in ApcMin/+ mice. Here, we tested if CoPEC trigger tumorigenesis in a mouse model lacking genetic susceptibility or the use of carcinogen. Methods: Mice with autophagy deficiency in IECs (Atg16l1∆IEC) or wild-type mice (Atg16l1flox/flox) were infected with the CoPEC 11G5 strain or the mutant 11G5∆clbQ incapable of producing colibactin and subjected to 12 cycles of DSS treatment to induce chronic colitis. Mouse colons were used for histological assessment, immunohistochemical and immunoblot analyses for DNA damage marker. Results: 11G5 or 11G5∆clbQ infection increased clinical and histological inflammation scores, and these were further enhanced by IEC-specific autophagy deficiency. 11G5 infection, but not 11G5∆clbQ infection, triggered the formation of invasive carcinomas, and this was further increased by autophagy deficiency. The increase in invasive carcinomas was correlated with enhanced DNA damage and independent of inflammation. Conclusions: CoPEC induce colorectal carcinogenesis in a CRC mouse model lacking genetic susceptibility and carcinogen. This work highlights the role of (i) CoPEC as a driver of CRC development, and (ii) autophagy in inhibiting the carcinogenic properties of CoPEC.
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Affiliation(s)
- Laurène Salesse
- M2iSH, UMR 1071 Inserm, Université Clermont Auvergne, INRAE USC 2018, CRNH, 63001 Clermont-Ferrand, France; (L.S.); (C.L.); (M.H.T.H.); (P.S.); (A.R.); (N.B.); (C.G.); (G.D.)
| | - Cécily Lucas
- M2iSH, UMR 1071 Inserm, Université Clermont Auvergne, INRAE USC 2018, CRNH, 63001 Clermont-Ferrand, France; (L.S.); (C.L.); (M.H.T.H.); (P.S.); (A.R.); (N.B.); (C.G.); (G.D.)
| | - My Hanh Thi Hoang
- M2iSH, UMR 1071 Inserm, Université Clermont Auvergne, INRAE USC 2018, CRNH, 63001 Clermont-Ferrand, France; (L.S.); (C.L.); (M.H.T.H.); (P.S.); (A.R.); (N.B.); (C.G.); (G.D.)
- Department of Cell Biology, Faculty of Biology, University of Science, Vietnam National University (VNU), Hanoi 100000, Vietnam
| | - Pierre Sauvanet
- M2iSH, UMR 1071 Inserm, Université Clermont Auvergne, INRAE USC 2018, CRNH, 63001 Clermont-Ferrand, France; (L.S.); (C.L.); (M.H.T.H.); (P.S.); (A.R.); (N.B.); (C.G.); (G.D.)
- Department of Digestive and Hepatobiliary Surgery, CHU Estaing, 63001 Clermont-Ferrand, France
| | - Alexandra Rezard
- M2iSH, UMR 1071 Inserm, Université Clermont Auvergne, INRAE USC 2018, CRNH, 63001 Clermont-Ferrand, France; (L.S.); (C.L.); (M.H.T.H.); (P.S.); (A.R.); (N.B.); (C.G.); (G.D.)
| | - Philip Rosenstiel
- Institute of Clinical Molecular Biology, Christian-Albrechts-University and University Hospital Schleswig-Holstein, 24148 Kiel, Germany;
| | | | - Nicolas Barnich
- M2iSH, UMR 1071 Inserm, Université Clermont Auvergne, INRAE USC 2018, CRNH, 63001 Clermont-Ferrand, France; (L.S.); (C.L.); (M.H.T.H.); (P.S.); (A.R.); (N.B.); (C.G.); (G.D.)
| | - Catherine Godfraind
- M2iSH, UMR 1071 Inserm, Université Clermont Auvergne, INRAE USC 2018, CRNH, 63001 Clermont-Ferrand, France; (L.S.); (C.L.); (M.H.T.H.); (P.S.); (A.R.); (N.B.); (C.G.); (G.D.)
- Department of Pathology, CHU Gabriel Montpied, 63001 Clermont-Ferrand, France
| | - Guillaume Dalmasso
- M2iSH, UMR 1071 Inserm, Université Clermont Auvergne, INRAE USC 2018, CRNH, 63001 Clermont-Ferrand, France; (L.S.); (C.L.); (M.H.T.H.); (P.S.); (A.R.); (N.B.); (C.G.); (G.D.)
| | - Hang Thi Thu Nguyen
- M2iSH, UMR 1071 Inserm, Université Clermont Auvergne, INRAE USC 2018, CRNH, 63001 Clermont-Ferrand, France; (L.S.); (C.L.); (M.H.T.H.); (P.S.); (A.R.); (N.B.); (C.G.); (G.D.)
- Correspondence: ; Tel.: +33-473178381; Fax: +33-473178371
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Lucas C, Salesse L, Hoang MHT, Bonnet M, Sauvanet P, Larabi A, Godfraind C, Gagnière J, Pezet D, Rosenstiel P, Barnich N, Bonnet R, Dalmasso G, Nguyen HTT. Autophagy of Intestinal Epithelial Cells Inhibits Colorectal Carcinogenesis Induced by Colibactin-Producing Escherichia coli in Apc Min/+ Mice. Gastroenterology 2020; 158:1373-1388. [PMID: 31917256 DOI: 10.1053/j.gastro.2019.12.026] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [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: 03/23/2019] [Revised: 12/14/2019] [Accepted: 12/18/2019] [Indexed: 12/28/2022]
Abstract
BACKGROUND & AIMS Colibactin-producing Escherichia coli (CoPEC) colonize the colonic mucosa of a higher proportion of patients with vs without colorectal cancer (CRC) and promote colorectal carcinogenesis in susceptible mouse models of CRC. Autophagy degrades cytoplasmic contents, including intracellular pathogens, via lysosomes and regulates intestinal homeostasis. We investigated whether inhibiting autophagy affects colorectal carcinogenesis in susceptible mice infected with CoPEC. METHODS Human intestinal epithelial cells (IECs) (HCT-116) were infected with a strain of CoPEC (11G5 strain) isolated from a patient or a mutant strain that does not produce colibactin (11G5ΔclbQ). Levels of ATG5, ATG16L1, and SQSTM1 (also called p62) were knocked down in HCT-116 cells using small interfering RNAs. ApcMin/+ mice and ApcMin/+ mice with IEC-specific disruption of Atg16l1 (ApcMin/+/Atg16l1ΔIEC) were infected with 11G5 or 11G5ΔclbQ. Colonic tissues were collected from mice and analyzed for tumor size and number and by immunohistochemical staining, immunoblot, and quantitative reverse transcription polymerase chain reaction for markers of autophagy, DNA damage, cell proliferation, and inflammation. We analyzed levels of messenger RNAs (mRNAs) encoding proteins involved in autophagy in colonic mucosal tissues from patients with sporadic CRC colonized with vs without CoPEC by quantitative reverse-transcription polymerase chain reaction. RESULTS Patient colonic mucosa with CoPEC colonization had higher levels of mRNAs encoding proteins involved in autophagy than colonic mucosa without these bacteria. Infection of cultured IECs with 11G5 induced autophagy and DNA damage repair, whereas infection with 11G5ΔclbQ did not. Knockdown of ATG5 in HCT-116 cells increased numbers of intracellular 11G5, secretion of interleukin (IL) 6 and IL8, and markers of DNA double-strand breaks but reduced markers of DNA repair, indicating that autophagy is required for bacteria-induced DNA damage repair. Knockdown of ATG5 in HCT-116 cells increased 11G5-induced senescence, promoting proliferation of uninfected cells. Under uninfected condition, ApcMin/+/Atg16l1ΔIEC mice developed fewer and smaller colon tumors than ApcMin/+ mice. However, after infection with 11G5, ApcMin/+/Atg16l1ΔIEC mice developed more and larger tumors, with a significant increase in mean histologic score, than infected ApcMin/+ mice. Increased levels of Il6, Tnf, and Cxcl1 mRNAs, decreased level of Il10 mRNA, and increased markers of DNA double-strand breaks and proliferation were observed in the colonic mucosa of 11G5-infected ApcMin/+/Atg16l1ΔIEC mice vs 11G5-infected ApcMin/+ mice. CONCLUSION Infection of IECs and susceptible mice with CoPEC promotes autophagy, which is required to prevent colorectal tumorigenesis. Loss of ATG16L1 from IECs increases markers of inflammation, DNA damage, and cell proliferation and increases colorectal tumorigenesis in 11G5-infected ApcMin/+ mice. These findings indicate the importance of autophagy in response to CoPEC infection, and strategies to induce autophagy might be developed for patients with CRC and CoPEC colonization.
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Affiliation(s)
- Cécily Lucas
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Laurène Salesse
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France
| | - My Hanh Thi Hoang
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France; Department of Cell Biology, Faculty of Biology, University of Science, Vietnam National University, Hanoi, Vietnam
| | - Mathilde Bonnet
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Pierre Sauvanet
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France; Department of Digestive and Hepatobiliary Surgery, CHU (Centre Hospitalier Universitaire) Clermont-Ferrand, France
| | - Anaïs Larabi
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Catherine Godfraind
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France; Department of Pathology, CHU Gabriel Montpied, Clermont-Ferrand, France
| | - Johan Gagnière
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France; Department of Digestive and Hepatobiliary Surgery, CHU (Centre Hospitalier Universitaire) Clermont-Ferrand, France
| | - Denis Pezet
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France; Department of Digestive and Hepatobiliary Surgery, CHU (Centre Hospitalier Universitaire) Clermont-Ferrand, France
| | - Philip Rosenstiel
- Institute of Clinical Molecular Biology, Christian-Albrechts-University and University Hospital Schleswig-Holstein, Kiel, Germany
| | - Nicolas Barnich
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Richard Bonnet
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France; Department of Bacteriology, CHU Gabriel Montpied, Clermont-Ferrand, France
| | - Guillaume Dalmasso
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Hang Thi Thu Nguyen
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France.
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9
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Lopès A, Billard E, Casse AH, Villéger R, Veziant J, Roche G, Carrier G, Sauvanet P, Briat A, Pagès F, Naimi S, Pezet D, Barnich N, Dumas B, Bonnet M. Colibactin-positive Escherichia coli induce a procarcinogenic immune environment leading to immunotherapy resistance in colorectal cancer. Int J Cancer 2020; 146:3147-3159. [PMID: 32037530 DOI: 10.1002/ijc.32920] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [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: 05/13/2019] [Revised: 01/17/2020] [Accepted: 02/04/2020] [Indexed: 02/06/2023]
Abstract
Colibactin-producing E. coli (CoPEC) are frequently detected in colorectal cancer (CRC) and exhibit procarcinogenic properties. Because increasing evidence show the role of immune environment and especially of antitumor T-cells in CRC development, we investigated the impact of CoPEC on these cells in human CRC and in the APCMin/+ mice colon. T-cell density was evaluated by immunohistochemistry in human tumors known for their CoPEC status. APCmin/+ mice were chronically infected with a CoPEC strain (11G5). Immune cells (neutrophils and T-cell populations) were then quantified by immunofluorescent staining of the colon. The quantification of lymphoid populations was also performed in the mesenteric lymph nodes (MLNs). Here, we show that the colonization of CRC patients by CoPEC is associated with a decrease of tumor-infiltrating T lymphocytes (CD3+ T-cells). Similarly, we demonstrated, in mice, that CoPEC chronic infection decreases CD3+ and CD8+ T-cells and increases colonic inflammation. In addition, we noticed a significant decrease in antitumor T-cells in the MLNs of CoPEC-infected mice compared to that of controls. Moreover, we show that CoPEC infection decreases the antimouse PD-1 immunotherapy efficacy in MC38 tumor model. Our findings suggest that CoPEC could promote a procarcinogenic immune environment through impairment of antitumor T-cell response, leading to tumoral resistance to immunotherapy. CoPEC could thus be a new biomarker predicting the anti-PD-1 response in CRC.
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Affiliation(s)
- Amélie Lopès
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France.,Biologics Research, Sanofi R&D, Vitry-Sur-Seine, France
| | - Elisabeth Billard
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
| | - Al Hassan Casse
- Histopathology and Bio-Imaging Group, Sanofi R&D, Vitry-Sur-Seine, France
| | - Romain Villéger
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
| | - Julie Veziant
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France.,Service de Chirurgie Digestive, CHU Clermont-Ferrand, INSERM, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Gwenaëlle Roche
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
| | - Guillaume Carrier
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France.,Service de Chirurgie Digestive, CHU Clermont-Ferrand, INSERM, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Pierre Sauvanet
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France.,Service de Chirurgie Digestive, CHU Clermont-Ferrand, INSERM, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Arnaud Briat
- UMR 1240 Inserm/Université Clermont Auvergne, Imagerie Moléculaire et Stratégies Théranostiques, Clermont-Ferrand, France
| | - Franck Pagès
- Immunomonitoring Platform, Laboratory of Immunology, AP-HP, Assistance Publique-Hopitaux de Paris, Georges Pompidou European Hospital, Paris, France.,Inserm U872, Laboratory of Integrative Cancer Immunology, Paris, France.,Université Paris Descartes, Paris, France.,Centre de Recherche des Cordeliers, Université Pierre et Marie Curie, Sorbonne Universités, Paris, France
| | - Souad Naimi
- Histopathology and Bio-Imaging Group, Sanofi R&D, Vitry-Sur-Seine, France
| | - Denis Pezet
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France.,Service de Chirurgie Digestive, CHU Clermont-Ferrand, INSERM, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Nicolas Barnich
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
| | - Bruno Dumas
- Biologics Research, Sanofi R&D, Vitry-Sur-Seine, France
| | - Mathilde Bonnet
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
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10
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Veziant J, Poirot K, Chevarin C, Cassagnes L, Sauvanet P, Chassaing B, Robin F, Godfraind C, Barnich N, Pezet D, Pereira B, Gagniere J, Bonnet M. Prognostic value of a combination of innovative factors (gut microbiota, sarcopenia, obesity, metabolic syndrome) to predict surgical/oncologic outcomes following surgery for sporadic colorectal cancer: a prospective cohort study protocol (METABIOTE). BMJ Open 2020; 10:e031472. [PMID: 31915159 PMCID: PMC6955509 DOI: 10.1136/bmjopen-2019-031472] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 11/12/2019] [Accepted: 11/18/2019] [Indexed: 12/19/2022] Open
Abstract
INTRODUCTION Colorectal cancer (CRC) is still associated with poor prognosis, especially in patients with advanced disease. Development of new prognostic tools replacing or supplementing those routinely used is definitely needed, with the aim to optimise and personalise treatment strategies. Gut microbiota composition and body composition profile (obesity, sarcopenia and metabolic syndrome) have recently been reported separately as new relevant prognostic factors for postoperative surgical and oncologic outcomes following CRC surgery. However interactions that exist between these factors have been poorly studied. The purpose of this translational prospective cohort study (METABIOTE) is to investigate potential interactions between gut microbiota, body composition profile and postoperative outcomes and recurrence in patients undergoing surgery for non-metastatic sporadic CRC. METHODS AND ANALYSIS This single-centre project aims to prospectively enrol 300 consecutive patients undergoing surgery for non-metastatic sporadic CRC at the University Hospital of Clermont-Ferrand, France for the identification of specific microbial signatures (from tumour, colonic mucosa and stools samples) associated with particular metabolic profiles that could impact postoperative morbidity and oncologic outcomes, using microbiological, molecular and imaging approaches. The primary outcome is the 5-year overall survival (OS). Other outcomes are 5-year CRC-related OS, 5-year disease-free survival, 30-day postoperative morbidity, 90-day postoperative mortality and length of hospital stay. ETHICS AND DISSEMINATION This study protocol was reviewed and approved by an independent French regional review board (n°2018-A00352-53, 'Comité de Protection des Personnes Ile de France VII' on 4 July 2018, declared to the competent French authority ('Agence Nationale de Sécurité du Médicament et des produits de santé', France), and registered on the Clinical Trials web-based platform (NCT03843905). Oral and written informed consent will be obtained from each included patient. Study results will be reported to the scientific community at conferences and in peer-reviewed scientific journals. TRIAL REGISTRATION NUMBER NCT03843905..
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Affiliation(s)
- Julie Veziant
- Department of Digestive and Hepatobiliary Surgery, University Hospital, Clermont-Ferrand, France
- U1071 Inserm, Clermont-Auvergne University, Clermont-Ferrand, France
| | - Karine Poirot
- Department of Digestive and Hepatobiliary Surgery, University Hospital, Clermont-Ferrand, France
| | - Caroline Chevarin
- U1071 Inserm, Clermont-Auvergne University, Clermont-Ferrand, France
| | - Lucie Cassagnes
- Department of Radiology, Universitary Hospital, Clermont Ferrand, France
| | - Pierre Sauvanet
- U1071 Inserm, Clermont-Auvergne University, Clermont-Ferrand, France
| | | | - Frederic Robin
- U1071 Inserm, Clermont-Auvergne University, Clermont-Ferrand, France
| | - Catherine Godfraind
- Department of Anatomopathology, Universitary Hospital, Clermont Ferrand, France
| | - Nicolas Barnich
- U1071 Inserm, Clermont-Auvergne University, Clermont-Ferrand, France
| | - Denis Pezet
- Department of Digestive and Hepatobiliary Surgery, University Hospital, Clermont-Ferrand, France
- U1071 Inserm, Clermont-Auvergne University, Clermont-Ferrand, France
| | - Bruno Pereira
- Department of Clinical research and Innovation (DRCI), Universitary Hospital, Clermont Ferrand, France
| | - Johan Gagniere
- Department of Digestive and Hepatobiliary Surgery, University Hospital, Clermont-Ferrand, France
- U1071 Inserm, Clermont-Auvergne University, Clermont-Ferrand, France
| | - Mathilde Bonnet
- U1071 Inserm, Clermont-Auvergne University, Clermont-Ferrand, France
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Maillard F, Vazeille E, Sauvanet P, Sirvent P, Combaret L, Sourdrille A, Chavanelle V, Bonnet R, Otero YF, Delcros G, Barnich N, Boisseau N. High intensity interval training promotes total and visceral fat mass loss in obese Zucker rats without modulating gut microbiota. PLoS One 2019; 14:e0214660. [PMID: 30964881 PMCID: PMC6456220 DOI: 10.1371/journal.pone.0214660] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [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: 12/01/2018] [Accepted: 03/19/2019] [Indexed: 12/13/2022] Open
Abstract
Aims Increased visceral adipose tissue and dysbiosis in the overweight and obese promote chronic inflammation. The aim of this study was to compare the effects of moderate-intensity continuous training (MICT) and high-intensity interval training (HIIT) on the gut-adipose tissue cross-talk in obese Zucker rats. Methods Obese male Zucker rats (n = 36) were divided in three groups: MICT (12m.min-1 for 51min), HIIT (6 sets at 18 m.min-1 for 4min followed by 3min at 10m.min-1) and controls (CONT; no exercise). The animals ran on a treadmill 5 days/week for 10 weeks. Body composition, glycaemic control, lipid profile, inflammation, lipolysis signalling in subcutaneous and visceral adipose tissue, intestinal permeability (tight junctions and plasma lipopolysaccharide binding protein; LBP), and gut microbiota composition were assessed in the three groups. Results After 10 weeks of exercise, total and epididymal fat mass decreased only in the HIIT group. The α/β adrenergic receptor RNA ratio in subcutaneous adipose tissue increased only in the HIIT group. The expression level of phosphorylated hormone-sensitive lipase was not modified by training. Both HIIT and MICT decreased inflammation (plasma myeloperoxidase and keratinocyte-derived chemokine secretion in adipose tissue) and improved glucose metabolism. Zonula occludens-1 and occludin were upregulated in the HIIT group. Plasma LBP was similarly reduced in both training groups. HIIT and MICT did not affect gut microbiota composition. Conclusion In obese Zucker rats, HIIT and MICT improved inflammation and glucose metabolism. In contrast, only HIIT decreased total and visceral fat mass. These adaptations were not associated with modifications in gut microbiota composition.
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Affiliation(s)
- Florie Maillard
- Université Clermont Auvergne, Laboratoire des Adaptations Métaboliques à l’Exercice en conditions Physiologiques et Pathologiques (AME2P), Clermont-Ferrand, France
- Université Clermont Auvergne/Inserm U1071; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
- * E-mail:
| | - Emilie Vazeille
- Université Clermont Auvergne/Inserm U1071; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
- Université Clermont Auvergne, Inserm, 3iHP, CHU Clermont-Ferrand, Service d’Hépato-Gastro Entérologie, Clermont-Ferrand, France
| | - Pierre Sauvanet
- Université Clermont Auvergne/Inserm U1071; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
- Université Clermont Auvergne, CHU Clermont-Ferrand, Service de chirurgie digestive, Clermont-Ferrand, France
| | - Pascal Sirvent
- Université Clermont Auvergne, Laboratoire des Adaptations Métaboliques à l’Exercice en conditions Physiologiques et Pathologiques (AME2P), Clermont-Ferrand, France
| | - Lydie Combaret
- Université Clermont Auvergne, INRA, UNH, Unité de Nutrition Humaine, CRNH Auvergne, Clermont-Ferrand, France
| | - Antoine Sourdrille
- Université Clermont Auvergne, Laboratoire des Adaptations Métaboliques à l’Exercice en conditions Physiologiques et Pathologiques (AME2P), Clermont-Ferrand, France
| | - Vivien Chavanelle
- Université Clermont Auvergne, Laboratoire des Adaptations Métaboliques à l’Exercice en conditions Physiologiques et Pathologiques (AME2P), Clermont-Ferrand, France
| | - Richard Bonnet
- Université Clermont Auvergne/Inserm U1071; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
- Department of Bacteriology, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Yolanda Fernandez Otero
- Université Clermont Auvergne, Laboratoire des Adaptations Métaboliques à l’Exercice en conditions Physiologiques et Pathologiques (AME2P), Clermont-Ferrand, France
| | - Geoffrey Delcros
- Université Clermont Auvergne, Laboratoire des Adaptations Métaboliques à l’Exercice en conditions Physiologiques et Pathologiques (AME2P), Clermont-Ferrand, France
| | - Nicolas Barnich
- Université Clermont Auvergne/Inserm U1071; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
| | - Nathalie Boisseau
- Université Clermont Auvergne, Laboratoire des Adaptations Métaboliques à l’Exercice en conditions Physiologiques et Pathologiques (AME2P), Clermont-Ferrand, France
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Gagnière J, Bonnin V, Jarrousse AS, Cardamone E, Agus A, Uhrhammer N, Sauvanet P, Déchelotte P, Barnich N, Bonnet R, Pezet D, Bonnet M. Interactions between microsatellite instability and human gut colonization by Escherichia coli in colorectal cancer. Clin Sci (Lond) 2017; 131:471-485. [PMID: 28093453 DOI: 10.1042/cs20160876] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
Recent studies suggest that colonization of colonic mucosa by pathogenic Escherichia coli could be involved in the development of colorectal cancer (CRC), especially through the production of genotoxins such as colibactin and/or by interfering with the DNA mismatch repair (MMR) pathway that leads to microsatellite instability (MSI). The present study, performed on 88 CRC patients, revealed a significant increase in E. coli colonization in the MSI CRC phenotype. In the same way, E. coli persistence and internalization were increased in vitro in MMR-deficient cells. Moreover, we demonstrated that colibactin-producing E. coli induce inhibition of the mutL homologue 1 (MLH1) MMR proteins, which could lead to genomic instability. However, colibactin-producing E. coli were more frequently identified in microsatellite stable (MSS) CRC. The present study suggests differences in the involvement of colibactin-producing E. coli in colorectal carcinogenesis according to the CRC phenotype. Further host–pathogen interactions studies should take into account CRC phenotypes.
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Affiliation(s)
- Johan Gagnière
- UMR 1071 Inserm/Université Clermont Auvergne, 63000 Clermont-Ferrand, France
- INRA USC-2018, 63000 Clermont-Ferrand, France
- Department of Digestive Surgery, CHU Clermont-Ferrand, 63000 Clermont-Ferrand, France
| | - Virginie Bonnin
- UMR 1071 Inserm/Université Clermont Auvergne, 63000 Clermont-Ferrand, France
- INRA USC-2018, 63000 Clermont-Ferrand, France
| | | | - Emilie Cardamone
- UMR 1071 Inserm/Université Clermont Auvergne, 63000 Clermont-Ferrand, France
- INRA USC-2018, 63000 Clermont-Ferrand, France
| | - Allison Agus
- UMR 1071 Inserm/Université Clermont Auvergne, 63000 Clermont-Ferrand, France
- INRA USC-2018, 63000 Clermont-Ferrand, France
- Department of Oncogenetic, Centre Jean Perrin, 63000 Clermont-Ferrand, France
| | - Nancy Uhrhammer
- Department of Oncogenetic, Centre Jean Perrin, 63000 Clermont-Ferrand, France
| | - Pierre Sauvanet
- UMR 1071 Inserm/Université Clermont Auvergne, 63000 Clermont-Ferrand, France
- INRA USC-2018, 63000 Clermont-Ferrand, France
- Department of Digestive Surgery, CHU Clermont-Ferrand, 63000 Clermont-Ferrand, France
| | - Pierre Déchelotte
- Department of Pathology, CHU Clermont-Ferrand, 63000 Clermont-Ferrand, France
| | - Nicolas Barnich
- UMR 1071 Inserm/Université Clermont Auvergne, 63000 Clermont-Ferrand, France
- INRA USC-2018, 63000 Clermont-Ferrand, France
| | - Richard Bonnet
- UMR 1071 Inserm/Université Clermont Auvergne, 63000 Clermont-Ferrand, France
- INRA USC-2018, 63000 Clermont-Ferrand, France
- Department of Bacteriology, CHU Clermont-Ferrand, 63000 Clermont-Ferrand, France
| | - Denis Pezet
- UMR 1071 Inserm/Université Clermont Auvergne, 63000 Clermont-Ferrand, France
- INRA USC-2018, 63000 Clermont-Ferrand, France
- Department of Digestive Surgery, CHU Clermont-Ferrand, 63000 Clermont-Ferrand, France
| | - Mathilde Bonnet
- UMR 1071 Inserm/Université Clermont Auvergne, 63000 Clermont-Ferrand, France
- INRA USC-2018, 63000 Clermont-Ferrand, France
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13
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Veziant J, Gagnière J, Jouberton E, Bonnin V, Sauvanet P, Pezet D, Barnich N, Miot-Noirault E, Bonnet M. Association of colorectal cancer with pathogenic Escherichia coli: Focus on mechanisms using optical imaging. World J Clin Oncol 2016; 7:293-301. [PMID: 27298769 PMCID: PMC4896897 DOI: 10.5306/wjco.v7.i3.293] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 11/04/2015] [Accepted: 03/25/2016] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the molecular or cellular mechanisms related to the infection of epithelial colonic mucosa by pks-positive Escherichia coli (E. coli) using optical imaging.
METHODS: We choose to evaluate the tumor metabolic activity using a fluorodeoxyglucose analogue as 2-deoxyglucosone fluorescent probes and to correlate it with tumoral volume (mm3). Inflammation measuring myeloperoxidase (MPO) activity and reactive oxygen species production was monitored by a bioluminescent (BLI) inflammation probe and related to histological examination and MPO levels by enzyme-linked immunosorbent assay (ELISA) on tumor specimens. The detection and quantitation of these two signals were validated on a xenograft model of human colon adenocarcinoma epithelial cells (HCT116) in nude mice infected with a pks-positive E. coli. The inflammatory BLI signal was validated intra-digestively in the colitis-CEABAC10 DSS models, which mimicked Crohn’s disease.
RESULTS: Using a 2-deoxyglucosone fluorescent probe, we observed a high and specific HCT116 tumor uptake in correlation with tumoral volume (P = 0.0036). Using the inflammation probe targeting MPO, we detected a rapid systemic elimination and a significant increase of the BLI signal in the pks-positive E. coli-infected HCT116 xenograft group (P < 0.005). ELISA confirmed that MPO levels were significantly higher (1556 ± 313.6 vs 234.6 ± 121.6 ng/mL P = 0.001) in xenografts infected with the pathogenic E. coli strain. Moreover, histological examination of tumor samples confirmed massive infiltration of pks-positive E. coli-infected HCT116 tumors by inflammatory cells compared to the uninfected group. These data showed that infection with the pathogenic E. coli strain enhanced inflammation and ROS production in tumors before tumor growth. Moreover, we demonstrated that the intra-digestive monitoring of inflammation is feasible in a reference colitis murine model (CEABAC10/DSS).
CONCLUSION: Using BLI and fluorescence optical imaging, we provided tools to better understand host-pathogen interactions at the early stage of disease, such as inflammatory bowel disease and colorectal cancer.
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Le Roy B, Tixier L, Pereira B, Sauvanet P, Buc E, Pétorin C, Déchelotte P, Pezet D, Balayssac D. Assessment of the Relation between the Expression of Oxaliplatin Transporters in Colorectal Cancer and Response to FOLFOX-4 Adjuvant Chemotherapy: A Case Control Study. PLoS One 2016; 11:e0148739. [PMID: 26859833 PMCID: PMC4747515 DOI: 10.1371/journal.pone.0148739] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 01/22/2016] [Indexed: 12/13/2022] Open
Abstract
Background Adjuvant chemotherapy for colorectal cancer is mainly based on the combination of 5-fluorouracil, folinic acid and oxaliplatin (FOLFOX-4). The pharmacological target of oxaliplatin remains intracellular and therefore dependent on its entry into cells. The intracellular distribution of oxaliplatin is mediated by organic cation transporters 1, 2 and 3 (OCT1, 2 and 3), copper transporter 1 (CTR1) and ATPase Cu2+ transporting beta polypeptide (ATP7B) and may modulate the efficacy of oxaliplatin-based chemotherapy. The aim of this study was to perform a retrospective study to assess the relation between the expression of oxaliplatin transporters in colorectal cancer before chemotherapy and the response to FOLFOX-4 adjuvant chemotherapy in responder and non-responder patients. Methods This retrospective study was conducted at a single center (University Hospital of Clermont-Ferrand, France). The target population was patients with resectable colorectal cancer operated between 2006 and 2013. Inclusion criteria were defined for the responder patients as no cancer recurrence 3 years after the end of chemotherapy, and for the non-responder patients as cancer recurrence within 1 year. Other inclusion criteria were stages IIb–IV cancers, first-line adjuvant FOLFOX-4 chemotherapy, and the availability of resected primary tumor samples. Exclusion criteria were preoperative chemotherapy and/or radiotherapy, a targeted therapy, other anticancer drugs, cancer recurrence between the first and the third year after the end of chemotherapy and follow-up < 3 years. Immunostaining of oxaliplatin transporters (OCT1, 2, 3, CTR1 and ATP7B) and Ki-67 was assessed in tumor samples. Results Retrospectively, 31 patients have been selected according to inclusion and exclusion criteria (15 responders and 16 non-responders). Before FOLFOX-4 regimen, OCT3 expression was significantly lower in responder patients compared to non-responders (p<0.001). According to multivariate analysis, OCT3 remains an independent criterion for adjuvant FOLFOX chemotherapy response (p = 0.039). No significant relation is reported between chemotherapy response and the expression of OCT1 (p = 0.49), OCT2 (p = 0.09), CTR1 (p = 0.45), ATP7B (p = 0.94) and Ki-67 (p = 0.34) in tumors. Conclusions High expression of OCT3 could be an independent factor related to resistance to FOLFOX-4 chemotherapy.
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Affiliation(s)
- Bertrand Le Roy
- CHU Clermont-Ferrand, Service de chirurgie et oncologie digestive, F-63003, Clermont-Ferrand, France
| | - Lucie Tixier
- CHU Clermont-Ferrand, Service d’anatomopathologie, F-63003, Clermont-Ferrand, France
| | - Bruno Pereira
- CHU Clermont-Ferrand, Délégation à la Recherche Clinique et à l’Innovation, F-63003, Clermont-Ferrand, France
| | - Pierre Sauvanet
- CHU Clermont-Ferrand, Service de chirurgie et oncologie digestive, F-63003, Clermont-Ferrand, France
- INSERM/UdA U1071, USC INRA 2018, M2iSH, F-63001, Clermont-Ferrand, France
| | - Emmanuel Buc
- CHU Clermont-Ferrand, Service de chirurgie et oncologie digestive, F-63003, Clermont-Ferrand, France
- INSERM/UdA U1071, USC INRA 2018, M2iSH, F-63001, Clermont-Ferrand, France
| | - Caroline Pétorin
- CHU Clermont-Ferrand, Service de chirurgie et oncologie digestive, F-63003, Clermont-Ferrand, France
| | - Pierre Déchelotte
- CHU Clermont-Ferrand, Service d’anatomopathologie, F-63003, Clermont-Ferrand, France
- Université d’Auvergne, R2D2 – EA 7281, F-63001, Clermont-Ferrand, France
| | - Denis Pezet
- CHU Clermont-Ferrand, Service de chirurgie et oncologie digestive, F-63003, Clermont-Ferrand, France
- INSERM/UdA U1071, USC INRA 2018, M2iSH, F-63001, Clermont-Ferrand, France
| | - David Balayssac
- CHU Clermont-Ferrand, Délégation à la Recherche Clinique et à l’Innovation, F-63003, Clermont-Ferrand, France
- INSERM U1107, Neuro-Dol, F-63001, Clermont-Ferrand, France
- * E-mail:
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15
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Agus A, Denizot J, Thévenot J, Martinez-Medina M, Massier S, Sauvanet P, Bernalier-Donadille A, Denis S, Hofman P, Bonnet R, Billard E, Barnich N. Western diet induces a shift in microbiota composition enhancing susceptibility to Adherent-Invasive E. coli infection and intestinal inflammation. Sci Rep 2016; 6:19032. [PMID: 26742586 PMCID: PMC4705701 DOI: 10.1038/srep19032] [Citation(s) in RCA: 277] [Impact Index Per Article: 34.6] [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: 07/30/2015] [Accepted: 12/02/2015] [Indexed: 12/15/2022] Open
Abstract
Recent advances have shown that the abnormal inflammatory response observed in CD involves an interplay among intestinal microbiota, host genetics and environmental factors. The escalating consumption of fat and sugar in Western countries parallels an increased incidence of CD during the latter 20th century. The impact of a HF/HS diet in mice was evaluated for the gut micro-inflammation, intestinal microbiota composition, function and selection of an E. coli population. The HF/HS diet created a specific inflammatory environment in the gut, correlated with intestinal mucosa dysbiosis characterized by an overgrowth of pro-inflammatory Proteobacteria such as E. coli, a decrease in protective bacteria, and a significantly decreased of SCFA concentrations. The expression of GPR43, a SCFA receptor was reduced in mice treated with a HF/HS diet and reduced in CD patients compared with controls. Interestingly, mice treated with an agonist of GPR43 were protected against DSS-induced colitis. Finally, the transplantation of feces from HF/HS treated mice to GF mice increased susceptibility to AIEC infection. Together, our results demonstrate that a Western diet could aggravate the inflammatory process and that the activation of the GPR43 receptor pathway could be used as a new strategy to treat CD patients.
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Affiliation(s)
- Allison Agus
- Clermont Université, M2iSH, UMR 1071 INSERM/Université d'Auvergne, Unité Sous Contrat 2018 Institut National de la Recherche Agronomique, Clermont-Ferrand, France
| | - Jérémy Denizot
- Clermont Université, M2iSH, UMR 1071 INSERM/Université d'Auvergne, Unité Sous Contrat 2018 Institut National de la Recherche Agronomique, Clermont-Ferrand, France
| | - Jonathan Thévenot
- Clermont Université, M2iSH, UMR 1071 INSERM/Université d'Auvergne, Unité Sous Contrat 2018 Institut National de la Recherche Agronomique, Clermont-Ferrand, France.,Clermont Université, Université d'Auvergne, Centre de Recherche en Nutrition Humaine Auvergne, EA 4678 CIDAM, Conception Ingénierie et Développement de l'Aliment et du Médicament, Clermont-Ferrand, France
| | - Margarita Martinez-Medina
- Clermont Université, M2iSH, UMR 1071 INSERM/Université d'Auvergne, Unité Sous Contrat 2018 Institut National de la Recherche Agronomique, Clermont-Ferrand, France
| | - Sébastien Massier
- Clermont Université, M2iSH, UMR 1071 INSERM/Université d'Auvergne, Unité Sous Contrat 2018 Institut National de la Recherche Agronomique, Clermont-Ferrand, France
| | - Pierre Sauvanet
- Clermont Université, M2iSH, UMR 1071 INSERM/Université d'Auvergne, Unité Sous Contrat 2018 Institut National de la Recherche Agronomique, Clermont-Ferrand, France.,Digestive Surgery Department, Centre Hospitalier Universitaire, Clermont-Ferrand 63000, France
| | - Annick Bernalier-Donadille
- UR454 Microbiology Division, INRA, Research Centre of Clermont-Ferrand-Theix, 63122 Saint Genès-Champanelle, France
| | - Sylvain Denis
- Clermont Université, Université d'Auvergne, Centre de Recherche en Nutrition Humaine Auvergne, EA 4678 CIDAM, Conception Ingénierie et Développement de l'Aliment et du Médicament, Clermont-Ferrand, France
| | - Paul Hofman
- Laboratory of Clinical and Experimental Pathology and Hospital-Related Biobank (BB 0033-00025), Pasteur Hospital, and IRCAN CNRS UMR 7284, Inserm U1081, Nice Sophia Antipolis University, France
| | - Richard Bonnet
- Clermont Université, M2iSH, UMR 1071 INSERM/Université d'Auvergne, Unité Sous Contrat 2018 Institut National de la Recherche Agronomique, Clermont-Ferrand, France.,Bacteriology Department, Centre Hospitalier Universitaire, Clermont-Ferrand 63000, France
| | - Elisabeth Billard
- Clermont Université, M2iSH, UMR 1071 INSERM/Université d'Auvergne, Unité Sous Contrat 2018 Institut National de la Recherche Agronomique, Clermont-Ferrand, France.,Institut Universitaire de Technologie, Génie Biologique, Aubière, France
| | - Nicolas Barnich
- Clermont Université, M2iSH, UMR 1071 INSERM/Université d'Auvergne, Unité Sous Contrat 2018 Institut National de la Recherche Agronomique, Clermont-Ferrand, France.,Institut Universitaire de Technologie, Génie Biologique, Aubière, France
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Cougnoux A, Dalmasso G, Martinez R, Buc E, Delmas J, Gibold L, Sauvanet P, Darcha C, Déchelotte P, Bonnet M, Pezet D, Wodrich H, Darfeuille-Michaud A, Bonnet R. Bacterial genotoxin colibactin promotes colon tumour growth by inducing a senescence-associated secretory phenotype. Gut 2014; 63:1932-42. [PMID: 24658599 DOI: 10.1136/gutjnl-2013-305257] [Citation(s) in RCA: 299] [Impact Index Per Article: 29.9] [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: 12/12/2022]
Abstract
BACKGROUND Escherichia coli strains harbouring the pks island (pks+ E. coli) are often seen in human colorectal tumours and have a carcinogenic effect independent of inflammation in an AOM/IL-10(-/-) (azoxymethane/interleukin) mouse model. OBJECTIVE To investigate the mechanism sustaining pks+ E. coli-induced carcinogenesis. METHOD Underlying cell processes were investigated in vitro and in vivo (xenograft model) using intestinal epithelial cells infected by pks+ E. coli or by an isogenic mutant defective for pks (pks- E. coli). The results were supported by data obtained from an AOM/DSS (azoxymethane/dextran sodium sulphate) colon cancer mouse model and from human colon cancer biopsy specimens colonised by pks+ E. coli or pks- E. coli. RESULTS Colibactin-producing E. coli enhanced tumour growth in both xenograft and AOM/DSS models. Growth was sustained by cellular senescence (a direct consequence of small ubiquitin-like modifier (SUMO)-conjugated p53 accumulation), which was accompanied by the production of hepatocyte growth factor (HGF). The underlying mechanisms involve microRNA-20a-5p, which targets SENP1, a key protein regulating p53 deSUMOylation. These results are consistent with the expression of SENP1, microRNA-20a-5p, HGF and phosphorylation of HGF receptor found in human and mouse colon cancers colonised by pks+ E. coli. CONCLUSION These data reveal a new paradigm for carcinogenesis, in which colibactin-induced senescence has an important role.
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Affiliation(s)
- Antony Cougnoux
- Clermont Université, UMR 1071 Inserm/Université d'Auvergne, Clermont-Ferrand, France INRA, USC 2018, Clermont-Ferrand, France
| | - Guillaume Dalmasso
- Clermont Université, UMR 1071 Inserm/Université d'Auvergne, Clermont-Ferrand, France INRA, USC 2018, Clermont-Ferrand, France
| | - Ruben Martinez
- Microbiologie Fondamentale et Pathogénicité, CNRS UMR 5234, Université Bordeaux Segalen, Bordeaux, France
| | - Emmanuel Buc
- Clermont Université, UMR 1071 Inserm/Université d'Auvergne, Clermont-Ferrand, France INRA, USC 2018, Clermont-Ferrand, France Service de Chirurgie Digestive, Centre Hospitalier Universitaire, Clermont-Ferrand, France
| | - Julien Delmas
- Clermont Université, UMR 1071 Inserm/Université d'Auvergne, Clermont-Ferrand, France INRA, USC 2018, Clermont-Ferrand, France Service de Bactériologie, Centre Hospitalier Universitaire, Clermont-Ferrand, France
| | - Lucie Gibold
- Clermont Université, UMR 1071 Inserm/Université d'Auvergne, Clermont-Ferrand, France INRA, USC 2018, Clermont-Ferrand, France Service de Bactériologie, Centre Hospitalier Universitaire, Clermont-Ferrand, France
| | - Pierre Sauvanet
- Clermont Université, UMR 1071 Inserm/Université d'Auvergne, Clermont-Ferrand, France INRA, USC 2018, Clermont-Ferrand, France Service de Chirurgie Digestive, Centre Hospitalier Universitaire, Clermont-Ferrand, France
| | - Claude Darcha
- Servie d'anatomo-pathologie, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Pierre Déchelotte
- Servie d'anatomo-pathologie, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Mathilde Bonnet
- Clermont Université, UMR 1071 Inserm/Université d'Auvergne, Clermont-Ferrand, France INRA, USC 2018, Clermont-Ferrand, France
| | - Denis Pezet
- Clermont Université, UMR 1071 Inserm/Université d'Auvergne, Clermont-Ferrand, France INRA, USC 2018, Clermont-Ferrand, France Service de Chirurgie Digestive, Centre Hospitalier Universitaire, Clermont-Ferrand, France
| | - Harald Wodrich
- Microbiologie Fondamentale et Pathogénicité, CNRS UMR 5234, Université Bordeaux Segalen, Bordeaux, France
| | - Arlette Darfeuille-Michaud
- Clermont Université, UMR 1071 Inserm/Université d'Auvergne, Clermont-Ferrand, France INRA, USC 2018, Clermont-Ferrand, France
| | - Richard Bonnet
- Clermont Université, UMR 1071 Inserm/Université d'Auvergne, Clermont-Ferrand, France INRA, USC 2018, Clermont-Ferrand, France Service de Bactériologie, Centre Hospitalier Universitaire, Clermont-Ferrand, France
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Raisch J, Buc E, Bonnet M, Sauvanet P, Vazeille E, de Vallée A, Déchelotte P, Darcha C, Pezet D, Bonnet R, Bringer MA, Darfeuille-Michaud A. Colon cancer-associated B2 Escherichia coli colonize gut mucosa and promote cell proliferation. World J Gastroenterol 2014; 20:6560-6572. [PMID: 24914378 PMCID: PMC4047342 DOI: 10.3748/wjg.v20.i21.6560] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 02/10/2014] [Accepted: 03/10/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To provide further insight into the characterization of mucosa-associated Escherichia coli (E. coli) isolated from the colonic mucosa of cancer patients.
METHODS: Phylogroups and the presence of cyclomodulin-encoding genes of mucosa-associated E. coli from colon cancer and diverticulosis specimens were determined by PCR. Adhesion and invasion experiments were performed with I-407 intestinal epithelial cells using gentamicin protection assay. Carcinoembryonic antigen-related cell adhesion molecule 6 (CEACAM6) expression in T84 intestinal epithelial cells was measured by enzyme-linked immunosorbent assay and by Western Blot. Gut colonization, inflammation and pro-carcinogenic potential were assessed in a chronic infection model using CEABAC10 transgenic mice. Cell proliferation was analyzed by real-time mRNA quantification of PCNA and immunohistochemistry staining of Ki67.
RESULTS: Analysis of mucosa-associated E. coli from colon cancer and diverticulosis specimens showed that whatever the origin of the E. coli strains, 86% of cyclomodulin-positive E. coli belonged to B2 phylogroup and most harbored polyketide synthase (pks) island, which encodes colibactin, and/or cytotoxic necrotizing factor (cnf) genes. In vitro assays using I-407 intestinal epithelial cells revealed that mucosa-associated B2 E. coli strains were poorly adherent and invasive. However, mucosa-associated B2 E. coli similarly to Crohn’s disease-associated E. coli are able to induce CEACAM6 expression in T84 intestinal epithelial cells. In addition, in vivo experiments using a chronic infection model of CEACAM6 expressing mice showed that B2 E. coli strain 11G5 isolated from colon cancer is able to highly persist in the gut, and to induce colon inflammation, epithelial damages and cell proliferation.
CONCLUSION: In conclusion, these data bring new insights into the ability of E. coli isolated from patients with colon cancer to establish persistent colonization, exacerbate inflammation and trigger carcinogenesis.
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Bonnet M, Buc E, Sauvanet P, Darcha C, Dubois D, Pereira B, Déchelotte P, Bonnet R, Pezet D, Darfeuille-Michaud A. Colonization of the Human Gut by E. coli and Colorectal Cancer Risk. Clin Cancer Res 2013; 20:859-67. [PMID: 24334760 DOI: 10.1158/1078-0432.ccr-13-1343] [Citation(s) in RCA: 280] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Buc E, Dubois D, Sauvanet P, Raisch J, Delmas J, Darfeuille-Michaud A, Pezet D, Bonnet R. High prevalence of mucosa-associated E. coli producing cyclomodulin and genotoxin in colon cancer. PLoS One 2013; 8:e56964. [PMID: 23457644 PMCID: PMC3572998 DOI: 10.1371/journal.pone.0056964] [Citation(s) in RCA: 340] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2012] [Accepted: 01/18/2013] [Indexed: 02/08/2023] Open
Abstract
Some Escherichia coli strains produce toxins designated cyclomodulins (CMs) which interfere with the eukaryotic cell cycle of host cells, suggesting a possible link between these bacteria and cancers. There are relatively few data available concerning the colonization of colon tumors by cyclomodulin- and genotoxic-producing E. coli. We did a qualitative and phylogenetic analysis of mucosa-associated E. coli harboring cyclomodulin-encoding genes from 38 patients with colorectal cancer (CRC) and 31 with diverticulosis. The functionality of these genes was investigated on cell cultures and the genotoxic activity of strains devoid of known CM-encoding gene was investigated. Results showed a higher prevalence of B2 phylogroup E. coli harboring the colibatin-producing genes in biopsies of patients with CRC (55.3%) than in those of patients with diverticulosis (19.3%), (p<0.01). Likewise, a higher prevalence of B2 E. coli harboring the CNF1-encoding genes in biopsies of patients with CRC (39.5%) than in those of patients with diverticulosis (12.9%), (p = 0.01). Functional analysis revealed that the majority of these genes were functional. Analysis of the ability of E. coli to adhere to intestinal epithelial cells Int-407 indicated that highly adherent E. coli strains mostly belonged to A and D phylogroups, whatever the origin of the strains (CRC or diverticulosis), and that most E. coli strains belonging to B2 phylogroup displayed very low levels of adhesion. In addition, 27.6% (n = 21/76) E. coli strains devoid of known cyclomodulin-encoding genes induced DNA damage in vitro, as assessed by the comet assay. In contrast to cyclomodulin-producing E. coli, these strains mainly belonged to A or D E. coli phylogroups, and exhibited a non significant difference in the distribution of CRC and diverticulosis specimens (22% versus 32.5%, p = 0.91). In conclusion, cyclomodulin-producing E. coli belonging mostly to B2 phylogroup colonize the colonic mucosa of patients with CRC.
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Affiliation(s)
- Emmanuel Buc
- UMR 1071 Inserm/Université d'Auvergne, Clermont Université, Clermont-Ferrand, France
- USC 2018, INRA, Clermont-Ferrand, France
- Service de Chirurgie digestive, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Damien Dubois
- UMR 1071 Inserm/Université d'Auvergne, Clermont Université, Clermont-Ferrand, France
- USC 2018, INRA, Clermont-Ferrand, France
- Service de Bactériologie, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Pierre Sauvanet
- UMR 1071 Inserm/Université d'Auvergne, Clermont Université, Clermont-Ferrand, France
- USC 2018, INRA, Clermont-Ferrand, France
- Service de Chirurgie digestive, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Jennifer Raisch
- UMR 1071 Inserm/Université d'Auvergne, Clermont Université, Clermont-Ferrand, France
- USC 2018, INRA, Clermont-Ferrand, France
| | - Julien Delmas
- UMR 1071 Inserm/Université d'Auvergne, Clermont Université, Clermont-Ferrand, France
- USC 2018, INRA, Clermont-Ferrand, France
- Service de Bactériologie, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Arlette Darfeuille-Michaud
- UMR 1071 Inserm/Université d'Auvergne, Clermont Université, Clermont-Ferrand, France
- USC 2018, INRA, Clermont-Ferrand, France
- Service de Bactériologie, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Denis Pezet
- UMR 1071 Inserm/Université d'Auvergne, Clermont Université, Clermont-Ferrand, France
- USC 2018, INRA, Clermont-Ferrand, France
- Service de Chirurgie digestive, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Richard Bonnet
- UMR 1071 Inserm/Université d'Auvergne, Clermont Université, Clermont-Ferrand, France
- USC 2018, INRA, Clermont-Ferrand, France
- Service de Bactériologie, CHU Clermont-Ferrand, Clermont-Ferrand, France
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20
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Bonnet M, Buc E, Sauvanet P, Darcha C, Pereira B, Pezet D, Darfeuille-Michaud A. 701 Escherichia Coli and Colorectal Carcinogenesis. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71343-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Etienne-Mesmin L, Chassaing B, Sauvanet P, Denizot J, Blanquet-Diot S, Darfeuille-Michaud A, Pradel N, Livrelli V. Interactions with M cells and macrophages as key steps in the pathogenesis of enterohemorrhagic Escherichia coli infections. PLoS One 2011; 6:e23594. [PMID: 21858177 PMCID: PMC3157389 DOI: 10.1371/journal.pone.0023594] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Accepted: 07/21/2011] [Indexed: 12/13/2022] Open
Abstract
Enterohemorrhagic Escherichia coli (EHEC) are food-borne pathogens that can cause serious infections ranging from diarrhea to hemorrhagic colitis (HC) and hemolytic-uremic syndrome (HUS). Translocation of Shiga-toxins (Stx) from the gut lumen to underlying tissues is a decisive step in the development of the infection, but the mechanisms involved remain unclear. Many bacterial pathogens target the follicle-associated epithelium, which overlies Peyer's patches (PPs), cross the intestinal barrier through M cells and are captured by mucosal macrophages. Here, translocation across M cells, as well as survival and proliferation of EHEC strains within THP-1 macrophages were investigated using EHEC O157:H7 reference strains, isogenic mutants, and 15 EHEC strains isolated from HC/HUS patients. We showed for the first time that E. coli O157:H7 strains are able to interact in vivo with murine PPs, to translocate ex vivo through murine ileal mucosa with PPs and across an in vitro human M cell model. EHEC strains are also able to survive and to produce Stx in macrophages, which induce cell apoptosis and Stx release. In conclusion, our results suggest that the uptake of EHEC by M cells and underlying macrophages in the PP may be a critical step in Stx translocation and release in vivo. A new model for EHEC infection in humans is proposed that could help in a fuller understanding of EHEC-associated diseases.
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Affiliation(s)
- Lucie Etienne-Mesmin
- Clermont Université, Université d'Auvergne, Centre de Recherche en Nutrition Humaine Auvergne, JE 2526 Evolution des bactéries pathogènes et susceptibilité génétique de l'hôte, Clermont-Ferrand, France
- INRA, Institut National Recherche Agronomique, Unité Sous Contrat USC-2018, Clermont-Ferrand, France
- Clermont Université, Université d'Auvergne, Centre de Recherche en Nutrition Humaine Auvergne, ERT 18, Conception, Ingénierie et Développement de l'Aliment et du Médicament, Clermont-Ferrand, France
- Clermont Université, Université d'Auvergne, UFR Pharmacie, Clermont-Ferrand, France
| | - Benoit Chassaing
- Clermont Université, Université d'Auvergne, Centre de Recherche en Nutrition Humaine Auvergne, JE 2526 Evolution des bactéries pathogènes et susceptibilité génétique de l'hôte, Clermont-Ferrand, France
- INRA, Institut National Recherche Agronomique, Unité Sous Contrat USC-2018, Clermont-Ferrand, France
| | - Pierre Sauvanet
- Clermont Université, Université d'Auvergne, Centre de Recherche en Nutrition Humaine Auvergne, JE 2526 Evolution des bactéries pathogènes et susceptibilité génétique de l'hôte, Clermont-Ferrand, France
- INRA, Institut National Recherche Agronomique, Unité Sous Contrat USC-2018, Clermont-Ferrand, France
- CHU Clermont Ferrand, Pôle des Pathologies Digestives, Clermont-Ferrand, France
| | - Jérémy Denizot
- Clermont Université, Université d'Auvergne, Centre de Recherche en Nutrition Humaine Auvergne, JE 2526 Evolution des bactéries pathogènes et susceptibilité génétique de l'hôte, Clermont-Ferrand, France
- INRA, Institut National Recherche Agronomique, Unité Sous Contrat USC-2018, Clermont-Ferrand, France
| | - Stéphanie Blanquet-Diot
- Clermont Université, Université d'Auvergne, Centre de Recherche en Nutrition Humaine Auvergne, ERT 18, Conception, Ingénierie et Développement de l'Aliment et du Médicament, Clermont-Ferrand, France
- Clermont Université, Université d'Auvergne, UFR Pharmacie, Clermont-Ferrand, France
| | - Arlette Darfeuille-Michaud
- Clermont Université, Université d'Auvergne, Centre de Recherche en Nutrition Humaine Auvergne, JE 2526 Evolution des bactéries pathogènes et susceptibilité génétique de l'hôte, Clermont-Ferrand, France
- INRA, Institut National Recherche Agronomique, Unité Sous Contrat USC-2018, Clermont-Ferrand, France
| | - Nathalie Pradel
- Clermont Université, Université d'Auvergne, Centre de Recherche en Nutrition Humaine Auvergne, JE 2526 Evolution des bactéries pathogènes et susceptibilité génétique de l'hôte, Clermont-Ferrand, France
- INRA, Institut National Recherche Agronomique, Unité Sous Contrat USC-2018, Clermont-Ferrand, France
| | - Valérie Livrelli
- Clermont Université, Université d'Auvergne, Centre de Recherche en Nutrition Humaine Auvergne, JE 2526 Evolution des bactéries pathogènes et susceptibilité génétique de l'hôte, Clermont-Ferrand, France
- INRA, Institut National Recherche Agronomique, Unité Sous Contrat USC-2018, Clermont-Ferrand, France
- Clermont Université, Université d'Auvergne, UFR Pharmacie, Clermont-Ferrand, France
- CHU Clermont-Ferrand, Service Bactériologie Mycologie Parasitologie, Clermont-Ferrand, France
- * E-mail:
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Miquel S, Peyretaillade E, Claret L, de Vallée A, Dossat C, Vacherie B, Zineb EH, Segurens B, Barbe V, Sauvanet P, Neut C, Colombel JF, Medigue C, Mojica FJM, Peyret P, Bonnet R, Darfeuille-Michaud A. Complete genome sequence of Crohn's disease-associated adherent-invasive E. coli strain LF82. PLoS One 2010; 5:e12714. [PMID: 20862302 PMCID: PMC2941450 DOI: 10.1371/journal.pone.0012714] [Citation(s) in RCA: 129] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2010] [Accepted: 08/20/2010] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Ileal lesions of Crohn's disease (CD) patients are abnormally colonized by pathogenic adherent-invasive Escherichia coli (AIEC) able to invade and to replicate within intestinal epithelial cells and macrophages. PRINCIPAL FINDINGS We report here the complete genome sequence of E. coli LF82, the reference strain of adherent-invasive E. coli associated with ileal Crohn's disease. The LF82 genome of 4,881,487 bp total size contains a circular chromosome with a size of 4,773,108 bp and a plasmid of 108,379 bp. The analysis of predicted coding sequences (CDSs) within the LF82 flexible genome indicated that this genome is close to the avian pathogenic strain APEC_01, meningitis-associated strain S88 and urinary-isolated strain UTI89 with regards to flexible genome and single nucleotide polymorphisms in various virulence factors. Interestingly, we observed that strains LF82 and UTI89 adhered at a similar level to Intestine-407 cells and that like LF82, APEC_01 and UTI89 were highly invasive. However, A1EC strain LF82 had an intermediate killer phenotype compared to APEC-01 and UTI89 and the LF82 genome does not harbour most of specific virulence genes from ExPEC. LF82 genome has evolved from those of ExPEC B2 strains by the acquisition of Salmonella and Yersinia isolated or clustered genes or CDSs located on pLF82 plasmid and at various loci on the chromosome. CONCLUSION LF82 genome analysis indicated that a number of genes, gene clusters and pathoadaptative mutations which have been acquired may play a role in virulence of AIEC strain LF82.
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Affiliation(s)
- Sylvie Miquel
- Clermont Université, Université d'Auvergne, JE2526, INRA, USC-2018, Clermont-Ferrand, France
- Institut Universitaire de Technologie, Université d'Auvergne, Aubière, France
| | - Eric Peyretaillade
- Institut Universitaire de Technologie, Université d'Auvergne, Aubière, France
- Laboratoire: Microorganismes Génome et Environnement, Université Clermont 2, CNRS, UMR 6023, Aubière, France
| | - Laurent Claret
- Clermont Université, Université d'Auvergne, JE2526, INRA, USC-2018, Clermont-Ferrand, France
- Institut Universitaire de Technologie, Université d'Auvergne, Aubière, France
| | - Amélie de Vallée
- Clermont Université, Université d'Auvergne, JE2526, INRA, USC-2018, Clermont-Ferrand, France
- Institut Universitaire de Technologie, Université d'Auvergne, Aubière, France
| | - Carole Dossat
- Commissariat à l'Energie Atomique (CEA), Direction des Sciences du Vivant, Institut de Génomique, Genoscope, Evry, France
| | - Benoit Vacherie
- Commissariat à l'Energie Atomique (CEA), Direction des Sciences du Vivant, Institut de Génomique, Genoscope, Evry, France
| | - El Hajji Zineb
- Commissariat à l'Energie Atomique (CEA), Direction des Sciences du Vivant, Institut de Génomique, Genoscope, Evry, France
| | - Beatrice Segurens
- Commissariat à l'Energie Atomique (CEA), Direction des Sciences du Vivant, Institut de Génomique, Genoscope, Evry, France
| | - Valerie Barbe
- Commissariat à l'Energie Atomique (CEA), Direction des Sciences du Vivant, Institut de Génomique, Genoscope, Evry, France
| | - Pierre Sauvanet
- Clermont Université, Université d'Auvergne, JE2526, INRA, USC-2018, Clermont-Ferrand, France
- Centre Hospitalier Universitaire, Pôle digestif, Clermont-Ferrand, France
| | | | | | - Claudine Medigue
- Commissariat à l'Energie Atomique (CEA), Direction des Sciences du Vivant, Institut de Génomique, Genoscope, Evry, France
- CNRS-UMR 8030, Laboratoire d'Analyse Bioinformatique en Génomique et Métabolisme, Evry, France
| | - Francisco J. M. Mojica
- Departamento de Fisiología, Genética y Microbiología, Universidad de Alicante, Alicante, Spain
| | - Pierre Peyret
- Institut Universitaire de Technologie, Université d'Auvergne, Aubière, France
- Laboratoire: Microorganismes Génome et Environnement, Université Clermont 2, CNRS, UMR 6023, Aubière, France
| | - Richard Bonnet
- Clermont Université, Université d'Auvergne, JE2526, INRA, USC-2018, Clermont-Ferrand, France
- Centre Hospitalier Universitaire, Bactériologie, Clermont-Ferrand, France
| | - Arlette Darfeuille-Michaud
- Clermont Université, Université d'Auvergne, JE2526, INRA, USC-2018, Clermont-Ferrand, France
- Institut Universitaire de Technologie, Université d'Auvergne, Aubière, France
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Carvalho FA, Barnich N, Sauvanet P, Darcha C, Gelot A, Darfeuille-Michaud A. Crohn's disease-associated Escherichia coli LF82 aggravates colitis in injured mouse colon via signaling by flagellin. Inflamm Bowel Dis 2008; 14:1051-60. [PMID: 18338780 DOI: 10.1002/ibd.20423] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Ileal lesions in Crohn's disease patients are colonized by pathogenic adherent-invasive Escherichia coli (AIEC) that harbor various virulence factors involved in adhesion to and invasion of intestinal epithelial cultured cells. We investigated in a mouse model of colonic inflammation the behavior of virulent AIEC reference bacteria LF82 compared to that of nonflagellated LF82 mutants. METHODS BALBc/J mice with intact or dextran sulfate sodium (DSS)-injured colon were orally challenged daily with 10(8) bacteria. The severity of colitis was assessed by determining disease activity index, colonic histological score, and myeoloperoxidase activity. Flagellin receptor and cytokine expression was measured by reverse-transcriptase polymerase chain reaction (RT-PCR) in colonic tissue. RESULTS In contrast to nonpathogenic E. coli, virulent LF82 bacteria exacerbated colitis in DSS-treated mice, substantially reducing survival rate, greatly lowering stool consistency, inducing marked weight loss and increased rectal bleeding, and significantly increasing erosive lesions and mucosal inflammation. Nonflagellated LF82 mutants behaved like nonpathogenic E. coli K-12. Interestingly, oral infection with LF82 virulent bacteria, but not with a nonvirulent LF82 mutant, induced a 7.0-fold increase in the levels of TLR5 and a 3.1-fold increase in those of ipaf mRNA, which encode respectively membrane and cytosolic receptors involved in the recognition of flagellin. Hence, a 5.6-fold increase in IL-1beta and a 5.3-fold increase in mRNA of IL-6 were observed in mice challenged with AIEC LF82 bacteria. CONCLUSIONS Crohn's disease-associated virulent AIEC LF82 bacteria, via expression of flagella, are able to potentiate an inflammatory mucosal immune response involving increased expression of TLR5 and IPAF flagellin receptors.
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Affiliation(s)
- Frédéric A Carvalho
- University Clermont 1, Pathogénie Bactérienne Intestinale, USC-INRA 2018, Clermont-Ferrand, France
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