1
|
Rondepierre F, Meynier M, Gagniere J, Deneuvy V, Deneuvy A, Roche G, Baudu E, Pereira B, Bonnet R, Barnich N, Carvalho FA, Pezet D, Bonnet M, Jalenques I. Preclinical and clinical evidence of the association of colibactin-producing Escherichia coli with anxiety and depression in colon cancer. World J Gastroenterol 2024; 30:2817-2826. [DOI: 10.3748/wjg.v30.i21.2817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/17/2024] [Accepted: 04/23/2024] [Indexed: 06/03/2024] Open
Abstract
BACKGROUND The association between the intestinal microbiota and psychiatric disorders is becoming increasingly apparent. The gut microbiota contributes to colorectal carcinogenesis (CRC), as demonstrated with colibactin-producing Escherichia coli (CoPEC).
AIM To evaluate the association between CoPEC prevalence and anxiety- and depressive-like behaviors with both preclinical and clinical approaches.
METHODS Patients followed after a CRC surgery and for whom the prevalence of CoPEC has been investigated underwent a psychiatric interview. Results were compared according to the CoPEC colonization. In parallel C57BL6/J wild type mice and mice with a CRC susceptibility were chronically infected with a CoPEC strain. Their behavior was assessed using the Elevated Plus Maze test, the Forced Swimming Test and the Behavior recognition system PhenoTyper®.
RESULTS In a limited cohort, all patients with CoPEC colonization presented with psychiatric disorders several years before cancer diagnosis, whereas only one patient (17%) without CoPEC did. This result was confirmed in C57BL6/J wild-type mice and in a CRC susceptibility mouse model (adenomatous polyposis colimultiple intestinal neoplasia/+). Mice exhibited a significant increase in anxiety- and depressive-like behaviors after chronic infection with a CoPEC strain.
CONCLUSION This finding provides the first evidence that CoPEC infection can induce microbiota-gut-brain axis disturbances in addition to its procarcinogenic properties.
Collapse
Affiliation(s)
- Fabien Rondepierre
- Service de Psychiatrie de l’Adulte A et Psychologie Médicale, CHU Clermont-Ferrand, Clermont-Ferrand 63000, France
| | - Maëva Meynier
- M2iSH, UMR 1071, INSERM, University of Clermont Auvergne, INRAE USC 1382, Clermont-Ferrand 63001, France
- NeuroDol, UMR 1107, INSERM, University of Clermont Auvergne, Clermont-Ferrand 63001, France
| | - Johan Gagniere
- M2iSH, UMR 1071, INSERM, University of Clermont Auvergne, INRAE USC 1382, Clermont-Ferrand 63001, France
- Department of Digestive Surgery, CHU de Clermont-Ferrand, Clermont-Ferrand 63001, France
| | - Vincent Deneuvy
- Service de Psychiatrie de l’Adulte A et Psychologie Médicale, CHU Clermont-Ferrand, Clermont-Ferrand 63000, France
| | - Anissa Deneuvy
- Department of Digestive Surgery, CHU de Clermont-Ferrand, Clermont-Ferrand 63001, France
| | - Gwenaelle Roche
- M2iSH, UMR 1071, INSERM, University of Clermont Auvergne, INRAE USC 1382, Clermont-Ferrand 63001, France
| | - Elodie Baudu
- M2iSH, UMR 1071, INSERM, University of Clermont Auvergne, INRAE USC 1382, Clermont-Ferrand 63001, France
- NeuroDol, UMR 1107, INSERM, University of Clermont Auvergne, Clermont-Ferrand 63001, France
| | - Bruno Pereira
- Biostatistics Unit, Department of Clinical Research and Innovation, CHU Clermont-Ferrand, Clermont-Ferrand 63000, France
| | - Richard Bonnet
- M2iSH, UMR 1071, INSERM, University of Clermont Auvergne, INRAE USC 1382, Clermont-Ferrand 63001, France
- Department of Bacteriology, CHU de Clermont-Ferrand, Clermont-Ferrand 63001, France
| | - Nicolas Barnich
- M2iSH, UMR 1071, INSERM, University of Clermont Auvergne, INRAE USC 1382, Clermont-Ferrand 63001, France
| | | | - Denis Pezet
- M2iSH, UMR 1071, INSERM, University of Clermont Auvergne, INRAE USC 1382, Clermont-Ferrand 63001, France
- Department of Digestive Surgery, CHU de Clermont-Ferrand, Clermont-Ferrand 63001, France
| | - Mathilde Bonnet
- M2iSH, UMR 1071, INSERM, University of Clermont Auvergne, INRAE USC 1382, Clermont-Ferrand 63001, France
| | - Isabelle Jalenques
- Service de Psychiatrie de l’Adulte A et Psychologie Médicale, CHU Clermont-Ferrand, Clermont-Ferrand 63000, France
- Université Clermont Auvergne, INP, CNRS, Clermont Auvergne Institut Pascal, Clermont-Ferrand 63000, France
| |
Collapse
|
2
|
de Klaver W, de Wit M, Bolijn A, Tijssen M, Delis-van Diemen P, Lemmens M, Spaander MC, Dekker E, van Leerdam ME, Coupé VM, van Boxtel R, Clevers H, Carvalho B, Meijer GA. Polyketide synthase positive Escherichia coli one-time measurement in stool is not informative of colorectal cancer risk in a screening setting. J Pathol 2024; 263:217-225. [PMID: 38551073 DOI: 10.1002/path.6276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 12/21/2023] [Accepted: 02/22/2024] [Indexed: 05/12/2024]
Abstract
Environmental factors like the pathogenicity island polyketide synthase positive (pks+) Escherichia coli (E. coli) could have potential for risk stratification in colorectal cancer (CRC) screening. The association between pks+ E. coli measured in fecal immunochemical test (FIT) samples and the detection of advanced neoplasia (AN) at colonoscopy was investigated. Biobanked FIT samples were analyzed for both presence of E. coli and pks+ E. coli and correlated with colonoscopy findings; 5020 CRC screening participants were included. Controls were participants in which no relevant lesion was detected because of FIT-negative results (cut-off ≥15 μg Hb/g feces), a negative colonoscopy, or a colonoscopy during which only a nonadvanced polyp was detected. Cases were participants with AN [CRC, advanced adenoma (AA), or advanced serrated polyp (ASP)]. Existing DNA isolation and quantitative polymerase chain reaction (qPCR) procedures were used for the detection of E. coli and pks+ E. coli in stool. A total of 4542 (90.2%) individuals were E. coli positive, and 1322 (26.2%) were pks+ E. coli positive. The prevalence of E. coli in FIT samples from individuals with AN was 92.9% compared to 89.7% in FIT samples of controls (p = 0.010). The prevalence of pks+ E. coli in FIT samples from individuals with AN (28.6%) and controls (25.9%) was not significantly different (p = 0.13). The prevalences of pks+ E. coli in FIT samples from individuals with CRC, AA, or ASP were 29.6%, 28.3%, and 32.1%, respectively. In conclusion, the prevalence of pks+ E. coli in a screening population was 26.2% and did not differ significantly between individuals with AN and controls. These findings disqualify the straightforward option of using a snapshot measurement of pks+ E. coli in FIT samples as a stratification biomarker for CRC risk. © 2024 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
Collapse
Affiliation(s)
- Willemijn de Klaver
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Location University of Amsterdam, Amsterdam, The Netherlands
- Department of Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Meike de Wit
- Department of Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Anne Bolijn
- Department of Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Marianne Tijssen
- Department of Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | | | - Margriet Lemmens
- Department of Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Manon Cw Spaander
- Department of Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Evelien Dekker
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Location University of Amsterdam, Amsterdam, The Netherlands
| | - Monique E van Leerdam
- Department of Gastrointestinal Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Veerle Mh Coupé
- Department of Epidemiology and Data Science, Amsterdam University Medical Centers, Location VU Medical Center, Amsterdam, The Netherlands
| | - Ruben van Boxtel
- Princess Máxima Center for pediatric oncology, Utrecht, The Netherlands
- Oncode Institute, Utrecht, The Netherlands
| | - Hans Clevers
- Princess Máxima Center for pediatric oncology, Utrecht, The Netherlands
- Oncode Institute, Utrecht, The Netherlands
- University Medical Center Utrecht, Utrecht, The Netherlands
- Hubrecht Institute, Utrecht, the Netherlands
- Pharma, Research and Early Development (pRED) of F. Hoffmann-La Roche Ltd, Basel, Switzerland
| | - Beatriz Carvalho
- Department of Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Gerrit A Meijer
- Department of Pathology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| |
Collapse
|
3
|
Terlouw D, Boot A, Ducarmon QR, Nooij S, Suerink M, van Leerdam ME, van Egmond D, Tops CM, Zwittink RD, Ruano D, Langers AMJ, Nielsen M, van Wezel T, Morreau H. Enrichment of colibactin-associated mutational signatures in unexplained colorectal polyposis patients. BMC Cancer 2024; 24:104. [PMID: 38238650 PMCID: PMC10797792 DOI: 10.1186/s12885-024-11849-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 01/05/2024] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND Colibactin, a genotoxin produced by polyketide synthase harboring (pks+) bacteria, induces double-strand breaks and chromosome aberrations. Consequently, enrichment of pks+Escherichia coli in colorectal cancer and polyposis suggests a possible carcinogenic effect in the large intestine. Additionally, specific colibactin-associated mutational signatures; SBS88 and ID18 in the Catalogue of Somatic Mutations in Cancer database, are detected in colorectal carcinomas. Previous research showed that a recurrent APC splice variant perfectly fits SBS88. METHODS In this study, we explore the presence of colibactin-associated signatures and fecal pks in an unexplained polyposis cohort. Somatic targeted Next-Generation Sequencing (NGS) was performed for 379 patients. Additionally, for a subset of 29 patients, metagenomics was performed on feces and mutational signature analyses using Whole-Genome Sequencing (WGS) on Formalin-Fixed Paraffin Embedded (FFPE) colorectal tissue blocks. RESULTS NGS showed somatic APC variants fitting SBS88 or ID18 in at least one colorectal adenoma or carcinoma in 29% of patients. Fecal metagenomic analyses revealed enriched presence of pks genes in patients with somatic variants fitting colibactin-associated signatures compared to patients without variants fitting colibactin-associated signatures. Also, mutational signature analyses showed enrichment of SBS88 and ID18 in patients with variants fitting these signatures in NGS compared to patients without. CONCLUSIONS These findings further support colibactins ability to mutagenize colorectal mucosa and contribute to the development of colorectal adenomas and carcinomas explaining a relevant part of patients with unexplained polyposis.
Collapse
Affiliation(s)
- Diantha Terlouw
- Department of Pathology, Leiden University Medical Center, Albinusdreef 2, Leiden, 2333 ZA, The Netherlands
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Arnoud Boot
- Department of Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
| | - Quinten R Ducarmon
- Department of Medical Microbiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Sam Nooij
- Department of Medical Microbiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Manon Suerink
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Monique E van Leerdam
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Demi van Egmond
- Department of Pathology, Leiden University Medical Center, Albinusdreef 2, Leiden, 2333 ZA, The Netherlands
| | - Carli M Tops
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Romy D Zwittink
- Department of Medical Microbiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Dina Ruano
- Department of Pathology, Leiden University Medical Center, Albinusdreef 2, Leiden, 2333 ZA, The Netherlands
| | - Alexandra M J Langers
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Maartje Nielsen
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Tom van Wezel
- Department of Pathology, Leiden University Medical Center, Albinusdreef 2, Leiden, 2333 ZA, The Netherlands
| | - Hans Morreau
- Department of Pathology, Leiden University Medical Center, Albinusdreef 2, Leiden, 2333 ZA, The Netherlands.
| |
Collapse
|
4
|
Moreira de Gouveia MI, Reuter A, Garrivier A, Daniel J, Bernalier-Donadille A, Jubelin G. Design and validation of a dual-fluorescence reporter system to monitor bacterial gene expression in the gut environment. Appl Microbiol Biotechnol 2023; 107:7301-7312. [PMID: 37750914 DOI: 10.1007/s00253-023-12788-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/04/2023] [Accepted: 09/10/2023] [Indexed: 09/27/2023]
Abstract
Fluorescence-based reporter systems are valuable tools for studying gene expression dynamics in living cells. However, available strategies to follow gene expression in bacteria within their natural ecosystem that can be typically rich and complex are scarce. In this work, we designed a plasmid-based tool ensuring both the identification of a strain of interest in complex environments and the monitoring of gene expression through the combination of two distinct fluorescent proteins as reporter genes. The tool was validated in Escherichia coli to monitor the expression of eut genes involved in the catabolism of ethanolamine. We demonstrated that the constructed reporter strain gradually responds with a bimodal output to increasing ethanolamine concentrations during in vitro cultures. The reporter strain was next inoculated to mice, and flow cytometry was used to detect the reporter strain among the dense microbiota of intestinal samples and to analyze specifically the expression of eut genes. This novel dual-fluorescent reporter system would be helpful to evaluate transcriptional processes in bacteria within complex environments. KEY POINTS: • A reporter tool was developed to monitor bacterial gene expression in complex environments. • Ethanolamine utilization (eut) genes are expressed by commensal E. coli in the mouse gut. • Expression of eut genes follows a bimodal distribution.
Collapse
Affiliation(s)
| | - Audrey Reuter
- Université Clermont Auvergne, INRAE, MEDIS UMR454, F-63000, Clermont-Ferrand, France
| | - Annie Garrivier
- Université Clermont Auvergne, INRAE, MEDIS UMR454, F-63000, Clermont-Ferrand, France
| | - Julien Daniel
- Université Clermont Auvergne, INRAE, MEDIS UMR454, F-63000, Clermont-Ferrand, France
| | | | - Gregory Jubelin
- Université Clermont Auvergne, INRAE, MEDIS UMR454, F-63000, Clermont-Ferrand, France.
| |
Collapse
|
5
|
Martín-Arévalo J, Moro-Valdezate D, Pla-Martí V, García-Botello S, Moya-Marcos P, Izquierdo-Moreno A, Pérez-Santiago L, Casado-Rodrigo D, Roselló-Keränen S, Espí-Macías A. Does month of birth influence colorectal cancer prognosis? Langenbecks Arch Surg 2023; 408:419. [PMID: 37882968 PMCID: PMC10602963 DOI: 10.1007/s00423-023-03161-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 10/20/2023] [Indexed: 10/27/2023]
Abstract
PURPOSE The main aim of this study was to identify a possible association between month of birth of colorectal cancer (CRC) patients and overall survival (OS) or disease-free survival (DFS). METHODS This observational study included all consecutive adult patients diagnosed with CRC undergoing oncological surgery from January 2005 to December 2019 with a minimum follow-up of 10 years. The outcome variables were locoregional recurrence, death due to cancer progression, OS and DFS. Non-supervised learning techniques (K-means) were conducted to identify groups of months with similar oncologic outcomes. Finally, OS and DFS were analysed using Kaplan-Meier and Cox regression tests. The model was calibrated with resampling techniques and subsequently a cross-validation was performed. RESULTS A total of 2520 patients were included. Three birth month groups with different oncologic outcomes were obtained. Survival analysis showed between-group differences in OS (p < 0.001) and DFS (p = 0.03). The multivariable Cox proportional hazards model identified the clusters obtained as independent prognostic factors for OS (p < 0.001) and DFS (p = 0.031). CONCLUSION There is an association between month of birth and oncologic outcomes of CRC. Patients born in the months of January, February, June, July, October and December had better OS and DFS than those born in different months of the year.
Collapse
Affiliation(s)
- José Martín-Arévalo
- Colorectal Surgery Unit, Department of General and Digestive Surgery, INCLIVA Biomedical Research Institute, Hospital Clínico Universitario de Valencia, University of Valencia, Av. Blasco Ibáñez, 17, 46010, Valencia, Spain
- Department of Surgery, University of Valencia, Valencia, Spain
| | - David Moro-Valdezate
- Colorectal Surgery Unit, Department of General and Digestive Surgery, INCLIVA Biomedical Research Institute, Hospital Clínico Universitario de Valencia, University of Valencia, Av. Blasco Ibáñez, 17, 46010, Valencia, Spain.
- Department of Surgery, University of Valencia, Valencia, Spain.
| | - Vicente Pla-Martí
- Colorectal Surgery Unit, Department of General and Digestive Surgery, INCLIVA Biomedical Research Institute, Hospital Clínico Universitario de Valencia, University of Valencia, Av. Blasco Ibáñez, 17, 46010, Valencia, Spain
- Department of Surgery, University of Valencia, Valencia, Spain
| | - Stephanie García-Botello
- Colorectal Surgery Unit, Department of General and Digestive Surgery, INCLIVA Biomedical Research Institute, Hospital Clínico Universitario de Valencia, University of Valencia, Av. Blasco Ibáñez, 17, 46010, Valencia, Spain
- Department of Surgery, University of Valencia, Valencia, Spain
| | | | - Ana Izquierdo-Moreno
- Colorectal Surgery Unit, Department of General and Digestive Surgery, INCLIVA Biomedical Research Institute, Hospital Clínico Universitario de Valencia, University of Valencia, Av. Blasco Ibáñez, 17, 46010, Valencia, Spain
| | - Leticia Pérez-Santiago
- Colorectal Surgery Unit, Department of General and Digestive Surgery, INCLIVA Biomedical Research Institute, Hospital Clínico Universitario de Valencia, University of Valencia, Av. Blasco Ibáñez, 17, 46010, Valencia, Spain
| | - David Casado-Rodrigo
- Colorectal Surgery Unit, Department of General and Digestive Surgery, INCLIVA Biomedical Research Institute, Hospital Clínico Universitario de Valencia, University of Valencia, Av. Blasco Ibáñez, 17, 46010, Valencia, Spain
| | - Susana Roselló-Keränen
- Department of Medical Oncology, INCLIVA Biomedical Research Institute, Hospital Clínico Universitario de Valencia, Valencia, Spain
| | - Alejandro Espí-Macías
- Colorectal Surgery Unit, Department of General and Digestive Surgery, INCLIVA Biomedical Research Institute, Hospital Clínico Universitario de Valencia, University of Valencia, Av. Blasco Ibáñez, 17, 46010, Valencia, Spain
- Department of Surgery, University of Valencia, Valencia, Spain
| |
Collapse
|
6
|
Kalantari A, James MJ, Renaud LA, Perreault M, Monahan CE, McDonald MN, Hava DL, Isabella VM. Robust performance of a live bacterial therapeutic chassis lacking the colibactin gene cluster. PLoS One 2023; 18:e0280499. [PMID: 36730255 PMCID: PMC9894410 DOI: 10.1371/journal.pone.0280499] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 12/29/2022] [Indexed: 02/03/2023] Open
Abstract
E. coli Nissle (EcN) is a non-pathogenic probiotic bacterium of the Enterobacteriaceae family that has been used for over a century to promote general gut health. Despite the history of safe usage of EcN, concerns have been raised regarding the presence of the pks gene cluster, encoding the genotoxin colibactin, due to its association with colorectal cancer. Here, we sought to determine the effect of pks island removal on the in vitro and in vivo robustness and activity of EcN and EcN-derived strains. A deletion of the pks island (Δpks) was constructed in wild type and engineered strains of EcN using lambda red recombineering. Mass spectrometric measurement of N-myristoyl-D-asparagine, released during colibactin maturation, confirmed that the pks deletion abrogated colibactin production. Growth curves were comparable between Δpks strains and their isogenic parents, and wild type EcN displayed no competitive advantage to the Δpks strain in mixed culture. Deletion of pks also had no effect on the activity of strains engineered to degrade phenylalanine (SYNB1618 and SYNB1934) or oxalate (SYNB8802). Furthermore, 1:1 mixed dosing of wild type and Δpks EcN in preclinical mouse and nonhuman primate models demonstrated no competitive disadvantage for the Δpks strain with regards to transit time or colonization. Importantly, there was no significant difference on in vivo strain performance between the clinical-stage strain SYNB1934 and its isogenic Δpks variant with regards to recovery of the quantitative strain-specific biomarkers d5- trans-cinnamic acid, and d5-hippuric acid. Taken together, these data support that the pks island is dispensable for Synthetic Biotic fitness and activity in vivo and that its removal from engineered strains of EcN will not have a deleterious effect on strain efficacy.
Collapse
Affiliation(s)
- Aida Kalantari
- Synlogic, Inc., Cambridge, Massachusetts, United States of America
- * E-mail: (VMI); (AK)
| | - Michael J. James
- Synlogic, Inc., Cambridge, Massachusetts, United States of America
| | - Lauren A. Renaud
- Synlogic, Inc., Cambridge, Massachusetts, United States of America
| | - Mylene Perreault
- Synlogic, Inc., Cambridge, Massachusetts, United States of America
| | | | - Mary N. McDonald
- Synlogic, Inc., Cambridge, Massachusetts, United States of America
| | - David L. Hava
- Synlogic, Inc., Cambridge, Massachusetts, United States of America
| | - Vincent M. Isabella
- Synlogic, Inc., Cambridge, Massachusetts, United States of America
- * E-mail: (VMI); (AK)
| |
Collapse
|
7
|
Garofalo M, Payros D, Penary M, Oswald E, Nougayrède JP, Oswald IP. A novel toxic effect of foodborne trichothecenes: The exacerbation of genotoxicity. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 317:120625. [PMID: 36410598 DOI: 10.1016/j.envpol.2022.120625] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/25/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Trichothecenes (TCT) are very common mycotoxins. While the effects of DON, the most prevalent TCT, have been extensively studied, less is known about the effect of other trichothecenes. DON has ribotoxic, pro-inflammatory, and cytotoxic potential and induces multiple toxic effects in humans and animals. Although DON is not genotoxic by itself, it has recently been shown that this toxin exacerbates the genotoxicity induced by model or bacterial genotoxins. Here, we show that five TCT, namely T-2 toxin (T-2), diacetoxyscirpenol (DAS), nivalenol (NIV), fusarenon-X (FX), and the newly discovered NX toxin, also exacerbate the DNA damage inflicted by various genotoxins. The exacerbation was dose dependent and observed with phleomycin, a model genotoxin, captan, a pesticide with genotoxic potential, and colibactin, a bacterial genotoxin produced by the intestinal microbiota. For this newly described effect, the trichothecenes ranked in the following order: T-2>DAS > FX > NIV ≥ DON ≥ NX. The genotoxic exacerbating effect of TCT correlated with their ribotoxic potential, as measured by the inhibition of protein synthesis. In conclusion, our data demonstrate that TCT, which are not genotoxic by themselves, exacerbate DNA damage induced by various genotoxins. Therefore, foodborne TCT could enhance the carcinogenic potential of genotoxins present in the diet or produced by intestinal bacteria.
Collapse
Affiliation(s)
- Marion Garofalo
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France; IRSD, Université de Toulouse, INSERM, INRAE, ENVT, UPS, Toulouse, France
| | - Delphine Payros
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France; IRSD, Université de Toulouse, INSERM, INRAE, ENVT, UPS, Toulouse, France
| | - Marie Penary
- IRSD, Université de Toulouse, INSERM, INRAE, ENVT, UPS, Toulouse, France
| | - Eric Oswald
- IRSD, Université de Toulouse, INSERM, INRAE, ENVT, UPS, Toulouse, France; CHU Toulouse, Hôpital Purpan, Service de Bactériologie-Hygiène, Toulouse, France
| | | | - Isabelle P Oswald
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France.
| |
Collapse
|
8
|
Gaab ME, Lozano PO, Ibañez D, Manese KD, Riego FM, Tiongco RE, Albano PM. A Meta-Analysis on the Association of Colibactin-Producing pks+ Escherichia coli with the Development of Colorectal Cancer. Lab Med 2023; 54:75-82. [PMID: 35960765 DOI: 10.1093/labmed/lmac072] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
OBJECTIVE Previous studies on the association between pks+Escherichia coli and colorectal cancer (CRC) demonstrated conflicting results. Hence, we performed a meta-analysis to obtain more precise estimates. METHODS Related literature was obtained from PubMed, ScienceDirect, Google Scholar, and Cochrane Library. Data were then extracted, summarized, and subjected to analysis using Review Manager 5.4 by computing for the pooled odds ratios at the 95% confidence interval. RESULTS Overall analysis showed that individuals carrying pks+E coli had a greater risk of developing CRC. Subgroup analysis further showed that individuals from Western countries carrying pks+E coli and individuals with pks+E coli in their tissue samples had increased risk of developing CRC. CONCLUSION Results of this meta-analysis suggest that individuals with pks+E coli have a greater risk of developing CRC. However, more studies are needed to confirm our claims.
Collapse
Affiliation(s)
- Marcianne Elaine Gaab
- Department of Biological Sciences, College of Science, University of Santo Tomas, Manila, Philippines
| | - Prim Olivette Lozano
- Department of Biological Sciences, College of Science, University of Santo Tomas, Manila, Philippines
| | - Danica Ibañez
- Department of Biological Sciences, College of Science, University of Santo Tomas, Manila, Philippines
| | - Korina Diane Manese
- Department of Biological Sciences, College of Science, University of Santo Tomas, Manila, Philippines
| | - Fatima May Riego
- Department of Biological Sciences, College of Science, University of Santo Tomas, Manila, Philippines
| | - Raphael Enrique Tiongco
- Department of Medical Technology, College of Allied Medical Professions, Angeles University Foundation, Angeles City, Philippines
| | - Pia Marie Albano
- Department of Biological Sciences, College of Science, University of Santo Tomas, Manila, Philippines.,Research Center for the Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines
| |
Collapse
|
9
|
Taoum C, Carrier G, Jarlier M, Roche G, Gagniere J, Fiess C, De Forges H, Chevarin C, Colombo PE, Barnich N, Rouanet P, Bonnet M. Determination of biomarkers associated with neoadjuvant treatment response focusing on colibactin-producing Escherichia coli in patients with mid or low rectal cancer: a prospective clinical study protocol (MICARE). BMJ Open 2022; 12:e061527. [PMID: 36460331 PMCID: PMC9723882 DOI: 10.1136/bmjopen-2022-061527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
INTRODUCTION The management of mid and low rectal cancer is based on neoadjuvant chemoradiotherapy (CRT) followed by standardised surgery. There is no biomarker in rectal cancer to aid clinicians in foreseeing treatment response. The determination of factors associated with treatment response might allow the identification of patients who require tailored strategies (eg, therapeutic de-escalation or intensification). Colibactin-producing Escherichia coli (CoPEC) has been associated with aggressive colorectal cancer and could be a poor prognostic factor. Currently, no study has evaluated the potential association between intestinal microbiota composition and tumour response to CRT in mid and low rectal cancer. The aim of this study is to assess the association between response to neoadjuvant CRT and faecal intestinal microbiota composition and/or CoPEC prevalence in patients with mid or low rectal cancer. METHODS AND ANALYSIS This is a non-randomised bicentric prospective clinical study with a recruitment capacity of 200 patients. Three stool samples will be collected from participants with histological-proven adenocarcinome of mid or low rectum who meet eligibility criteria of the study protocol: one before neoadjuvant treatment start, one in the period between CRT end and surgery and one the day before surgery. In each sample, CoPEC will be detected by culture in special media and molecular (PCR) approaches. The global microbiota composition will be also assessed by the bacterial 16S rRNA gene sequencing. Neoadjuvant CRT response and tumour regression grade will be described using the Dworak system at pathological examination. Clinical data and survival outcomes will also be collected and investigated. ETHICS AND DISSEMINATION MICARE was approved by the local ethics committee (Comité de Protection des Personnes Sud-Est II, 18 December 2019. Reference number 2019-A02493-54 and the institutional review board. Patients will be required to provide written informed consent. Results will be published in a peer reviewed journal. TRIAL REGISTRATION NUMBER NCT04103567.
Collapse
Affiliation(s)
- Christophe Taoum
- Surgical Oncology, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Guillaume Carrier
- Surgical Oncology, Institut régional du Cancer de Montpellier, Montpellier, France
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont Auvergne University, Clermont-Ferrand, France
| | - Marta Jarlier
- Biometrics Unit, Regional Cancer Centre Val d'Aurelle-Paul Lamarque, Montpellier, France
| | - Gwenaelle Roche
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont Auvergne University, Clermont-Ferrand, France
| | - Johan Gagniere
- Digestive and Hepatobiliary Surgery, University Hospital of Clermont-Ferrand, Clermont-Ferrand, France
| | - Catherine Fiess
- Clinical Research and Innovation Department, Regional Cancer Centre Val d'Aurelle-Paul Lamarque, Montpellier, France
| | - Helene De Forges
- Clinical Research and Innovation Department, Regional Cancer Centre Val d'Aurelle-Paul Lamarque, Montpellier, France
| | - Caroline Chevarin
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont Auvergne University, Clermont-Ferrand, France
| | | | - Nicolas Barnich
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont Auvergne University, Clermont-Ferrand, France
| | - Philippe Rouanet
- Surgical Oncology, Institut régional du Cancer de Montpellier, Montpellier, France
| | - Mathilde Bonnet
- Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont Auvergne University, Clermont-Ferrand, France
| |
Collapse
|
10
|
The pks island: a bacterial Swiss army knife? Colibactin: beyond DNA damage and cancer. Trends Microbiol 2022; 30:1146-1159. [PMID: 35672224 DOI: 10.1016/j.tim.2022.05.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/17/2022] [Accepted: 05/18/2022] [Indexed: 01/13/2023]
Abstract
The structure and mode of action of colibactin with its potential involvement in cancer have been extensively studied but little is known about the intrinsic function of the biosynthetic gene cluster, coding for colibactin, as a bacterial genotoxin. Paradoxically, this pathogenicity island is also found in commensal and probiotic strains of Escherichia coli and in bacterial species colonizing olive trees and the digestive tract of bees. In this review, we summarize the available literature to address the following key questions. What does this genomic island really encode? What explains the extensive dissemination of this genetically mobile element? What do we really know about the biosynthetic and secretory pathways of colibactin? What is its inherent target/function?
Collapse
|
11
|
Yang Z, Liu X, Wu Y, Peng J, Wei H. Effect of the Microbiome on Intestinal Innate Immune Development in Early Life and the Potential Strategy of Early Intervention. Front Immunol 2022; 13:936300. [PMID: 35928828 PMCID: PMC9344006 DOI: 10.3389/fimmu.2022.936300] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 06/23/2022] [Indexed: 12/15/2022] Open
Abstract
Early life is a vital period for mammals to be colonized with the microbiome, which profoundly influences the development of the intestinal immune function. For neonates to resist pathogen infection and avoid gastrointestinal illness, the intestinal innate immune system is critical. Thus, this review summarizes the development of the intestinal microbiome and the intestinal innate immune barrier, including the intestinal epithelium and immune cells from the fetal to the weaning period. Moreover, the impact of the intestinal microbiome on innate immune development and the two main way of early-life intervention including probiotics and fecal microbiota transplantation (FMT) also are discussed in this review. We hope to highlight the crosstalk between early microbial colonization and intestinal innate immunity development and offer some information for early intervention.
Collapse
Affiliation(s)
- Zhipeng Yang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Xiangchen Liu
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yanting Wu
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Jian Peng
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
- The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Hongkui Wei
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
- The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| |
Collapse
|
12
|
Tang JW, Liu X, Ye W, Li ZR, Qian PY. Biosynthesis and bioactivities of microbial genotoxin colibactins. Nat Prod Rep 2022; 39:991-1014. [PMID: 35288725 DOI: 10.1039/d1np00050k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Covering: up to 2021Colibactin(s), a group of secondary metabolites produced by the pks island (clb cluster) of Escherichia coli, shows genotoxicity relevant to colorectal cancer and thus significantly affects human health. Over the last 15 years, substantial efforts have been exerted to reveal the molecular structure of colibactin, but progress is slow owing to its instability, low titer, and elusive and complex biosynthesis logic. Fortunately, benefiting from the discovery of the prodrug mechanism, over 40 precursors of colibactin have been reported. Some key biosynthesis genes located on the pks island have also been characterised. Using an integrated bioinformatics, metabolomics, and chemical synthesis approach, researchers have recently characterised the structure and possible biosynthesis processes of colibactin, thereby providing new insights into the unique biosynthesis logic and the underlying mechanism of the biological activity of colibactin. Early developments in the study of colibactin have been summarised in several previous reviews covering various study periods, whereas the two most recent reviews have focused primarily on the chemical synthesis of colibactin. The present review aims to provide an update on the biosynthesis and bioactivities of colibactin.
Collapse
Affiliation(s)
- Jian-Wei Tang
- Department of Ocean Science, Hong Kong Branch of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China. .,Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou 511458, China
| | - Xin Liu
- Department of Ocean Science, Hong Kong Branch of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China. .,Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou 511458, China
| | - Wei Ye
- Department of Ocean Science, Hong Kong Branch of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China. .,State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Zhong-Rui Li
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Pei-Yuan Qian
- Department of Ocean Science, Hong Kong Branch of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China. .,Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou 511458, China
| |
Collapse
|
13
|
Nouri R, Hasani A, Asgharzadeh M, Sefidan FY, Hemmati F, Rezaee MA. Roles of gut microbiota in colorectal carcinogenesis providing a perspective for early diagnosis and treatment. Curr Pharm Biotechnol 2022; 23:1569-1580. [PMID: 35255786 DOI: 10.2174/1389201023666220307112413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/29/2021] [Accepted: 01/03/2022] [Indexed: 12/02/2022]
Abstract
Colorectal cancer (CRC) is the third most prevalent malignant neoplasm in the world. CRC is influenced by both environmental and genetic factors. Through toxin-mediated DNA damage and promotion of persistent dysregulated inflammation, the gut microbiota plays a crucial role in the development of CRC. In this review, we discussed the correlation between the bacterial microbiota and CRC carcinogenesis as well as the mechanism by which Streptococcus bovis/gallolyticus, Fusobacterium nucleatum, Bacteroides fragilis, and Escherichia coli can cause CRC.
Collapse
Affiliation(s)
- Roghayeh Nouri
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alka Hasani
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Medical Microbiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Asgharzadeh
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Yeganeh Sefidan
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Hemmati
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Ahangarzadeh Rezaee
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Medical Microbiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
- Clinical Research Development Unit of Children Educational, Research and Treatment Center, Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|
14
|
Nougayrède JP, Oswald E. Reply to Dubbert and von Bünau, "A Probiotic Friend". mSphere 2021; 6:e0090621. [PMID: 34935449 PMCID: PMC8694103 DOI: 10.1128/msphere.00906-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | - Eric Oswald
- IRSD, INSERM, INRAE, Université de Toulouse, ENVT, Toulouse, France
| |
Collapse
|
15
|
Tang-Fichaux M, Branchu P, Nougayrède JP, Oswald E. Tackling the Threat of Cancer Due to Pathobionts Producing Colibactin: Is Mesalamine the Magic Bullet? Toxins (Basel) 2021; 13:toxins13120897. [PMID: 34941734 PMCID: PMC8703417 DOI: 10.3390/toxins13120897] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/01/2021] [Accepted: 12/08/2021] [Indexed: 12/15/2022] Open
Abstract
Colibactin is a genotoxin produced primarily by Escherichia coli harboring the genomic pks island (pks+ E. coli). Pks+ E. coli cause host cell DNA damage, leading to chromosomal instability and gene mutations. The signature of colibactin-induced mutations has been described and found in human colorectal cancer (CRC) genomes. An inflamed intestinal environment drives the expansion of pks+ E. coli and promotes tumorigenesis. Mesalamine (i.e., 5-aminosalycilic acid), an effective anti-inflammatory drug, is an inhibitor of the bacterial polyphosphate kinase (PPK). This drug not only inhibits the production of intestinal inflammatory mediators and the proliferation of CRC cells, but also limits the abundance of E. coli in the gut microbiota and diminishes the production of colibactin. Here, we describe the link between intestinal inflammation and colorectal cancer induced by pks+ E. coli. We discuss the potential mechanisms of the pleiotropic role of mesalamine in treating both inflammatory bowel diseases and reducing the risk of CRC due to pks+ E. coli.
Collapse
Affiliation(s)
- Min Tang-Fichaux
- IRSD, Université de Toulouse, INSERM, INRAE, ENVT, UPS, 31024 Toulouse, France; (M.T.-F.); (P.B.); (J.-P.N.)
| | - Priscilla Branchu
- IRSD, Université de Toulouse, INSERM, INRAE, ENVT, UPS, 31024 Toulouse, France; (M.T.-F.); (P.B.); (J.-P.N.)
| | - Jean-Philippe Nougayrède
- IRSD, Université de Toulouse, INSERM, INRAE, ENVT, UPS, 31024 Toulouse, France; (M.T.-F.); (P.B.); (J.-P.N.)
| | - Eric Oswald
- IRSD, Université de Toulouse, INSERM, INRAE, ENVT, UPS, 31024 Toulouse, France; (M.T.-F.); (P.B.); (J.-P.N.)
- Service de Bactériology-Hygiène, Hôpital Purpan, CHU de Toulouse, 31059 Toulouse, France
- Correspondence:
| |
Collapse
|
16
|
The Role of Diet and Lifestyle in Early-Onset Colorectal Cancer: A Systematic Review. Cancers (Basel) 2021; 13:cancers13235933. [PMID: 34885046 PMCID: PMC8657307 DOI: 10.3390/cancers13235933] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/16/2021] [Accepted: 11/24/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary This systematic review sifted through the exogenous dietary and lifestyle risk factors associated with early-onset colorectal cancer, going through the putative involvement of these exogenous risk factors in epigenetic and microbiota modifications. Given the burden of early-onset colorectal cancer and its globally increasing trend with scant literature on its pathogenesis, we believe it would be of benefit to highlight the importance of further systematic and large studies. Indeed, dietary and lifestyle modification could complement colorectal screening for early-onset colorectal cancer prevention. Abstract The incidence of early-onset colorectal cancer, defined as colorectal cancer occurring in young adults under the age of 50, is increasing globally. Knowledge of the etiological factors in young adults is far from complete. Questionable eoCRCs’ exogenous factors are represented by processed meat, sugary drinks, alcohol, Western dietary pattern, overweight and obesity, physical inactivity, and smoking, though with heterogeneous results. Therefore, we performed a systematic review to summarize the current evidence on the role of diet and lifestyle as eoCRC risk factors. We systematically searched PubMed, Scopus, and EMBASE up to July 2021, for original studies evaluating diet, alcohol, physical activity, BMI, and smoking in eoCRC and included twenty-six studies. Indeed, the exogenous factors could represent modifiable key factors, whose recognition could establish areas of future interventions through public health strategies for eoCRC primary prevention. Additionally, we discussed the role of additional non-modifiable risk factors, and of epigenetic regulation and microbiota as mediators of the eoCRC triggered by diet and lifestyle.
Collapse
|
17
|
Iwasaki M, Kanehara R, Yamaji T, Katagiri R, Mutoh M, Tsunematsu Y, Sato M, Watanabe K, Hosomi K, Kakugawa Y, Ikematsu H, Hotta K, Kunisawa J, Wakabayashi K, Matsuda T. Association of Escherichia coli containing polyketide synthase in the gut microbiota with colorectal neoplasia in Japan. Cancer Sci 2021; 113:277-286. [PMID: 34779109 PMCID: PMC8748232 DOI: 10.1111/cas.15196] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/13/2021] [Accepted: 10/19/2021] [Indexed: 01/19/2023] Open
Abstract
Escherichia coli containing polyketide synthase in the gut microbiota (pks+ E coli) produce a polyketide-peptide genotoxin, colibactin, and are suspected to play a role in the development of colorectal neoplasia. To clarify the role of pks+ E coli in the early stage of tumorigenesis, we investigated whether the pks status of E coli was associated with the prevalence of colorectal neoplasia. This cross-sectional analysis of data from a prospective cohort in Izu Oshima, Japan included asymptomatic residents aged 40-79 years who underwent screening colonoscopy and provided a stool sample. We identified 543 participants with colorectal neoplasia (22 colorectal cancer and 521 adenoma) as cases and 425 participants with normal colon as controls. The pks status of E coli was assayed using stool DNA and specific primers that detected pks+ E coli. The proportion of pks+ E coli was 32.6% among cases and 30.8% among controls. Compared with those with pks- E coli, the odds ratio (OR) (95% confidence interval) for participants with pks+ E coli was 1.04 (0.77-1.41) after adjusting for potential confounders. No statistically significant associations were observed regardless of tumor site or number of colorectal adenoma lesions. However, stratified analyses revealed increased ORs among participants who consumed cereals over the median intake or vegetables under the median intake. Overall, we found no statistically significant association between pks+ E coli and the prevalence of colorectal adenoma lesions among this Japanese cohort. However, positive associations were suggested under certain intake levels of cereals or vegetables.
Collapse
Affiliation(s)
- Motoki Iwasaki
- Division of Epidemiology, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Rieko Kanehara
- Division of Epidemiology, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Taiki Yamaji
- Division of Epidemiology, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Ryoko Katagiri
- Division of Epidemiology, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Michihiro Mutoh
- Division of Prevention, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Yuta Tsunematsu
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Michio Sato
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Kenji Watanabe
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Koji Hosomi
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Ibaraki, Japan
| | - Yasuo Kakugawa
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan.,Cancer Screening Center, National Cancer Center Hospital, Tokyo, Japan
| | - Hiroaki Ikematsu
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan
| | - Kinichi Hotta
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Jun Kunisawa
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Ibaraki, Japan
| | - Keiji Wakabayashi
- School of Food and Nutritional Sciences, University of Shizuoka, Shizuoka, Japan
| | - Takahisa Matsuda
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan.,Cancer Screening Center, National Cancer Center Hospital, Tokyo, Japan
| |
Collapse
|
18
|
Nouri R, Hasani A, Masnadi Shirazi K, Alivand MR, Sepehri B, Sotoudeh S, Hemmati F, Fattahzadeh A, Abdinia B, Ahangarzadeh Rezaee M. Mucosa-Associated Escherichia coli in Colorectal Cancer Patients and Control Subjects: Variations in the Prevalence and Attributing Features. THE CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY = JOURNAL CANADIEN DES MALADIES INFECTIEUSES ET DE LA MICROBIOLOGIE MEDICALE 2021; 2021:2131787. [PMID: 34795808 PMCID: PMC8594973 DOI: 10.1155/2021/2131787] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 09/30/2021] [Accepted: 10/26/2021] [Indexed: 12/17/2022]
Abstract
Accumulating evidence indicates that specific strains of mucosa-associated Escherichia coli (E. coli) can influence the development of colorectal carcinoma. This study aimed to investigate the prevalence and characterization of mucosa-associated E. coli obtained from the colorectal cancer (CRC) patients and control group. At two referral university-affiliated hospitals in northwest Iran, 100 patients, 50 with CRC and 50 without, were studied over the course of a year. Fresh biopsy specimens were used to identify mucosa-associated E. coli isolates after dithiothreitol mucolysis. To classify the E. coli strains, ten colonies per sample were typed using enterobacterial repetitive intergenic consensus-based PCR (ERIC-PCR). The strains were classified into phylogroups using the quadruplex PCR method. The PCR method was used to examine for the presence of cyclomodulin, bfp, stx1, stx2, and eae-encoding genes. The strains were tested for biofilm formation using the microtiter plate assay. CRC patients had more mucosa-associated E. coli than the control group (p < 0.05). Enteropathogenic Escherichia coli (EPEC) was also found in 23% of CRC strains and 7.1% of control strains (p < 0.05). Phylogroup A was predominant in control group specimens, while E. coli isolates from CRC patients belonged most frequently to phylogroups D and B2. Furthermore, the frequency of cyclomodulin-encoding genes in the CRC patients was significantly higher than the control group. Around 36.9% of E. coli strains from CRC samples were able to form biofilms, compared to 16.6% E. coli strains from the control group (p < 0.05). Noticeably, cyclomodulin-positive strains were more likely to form biofilm in comparison to cyclomodulin-negative strains (p < 0.05). In conclusion, mucosa-associated E. coli especially cyclomodulin-positive isolates from B2 and D phylogroups possessing biofilm-producing capacity colonize the gut mucosa of CRC patients.
Collapse
Affiliation(s)
- Roghayeh Nouri
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alka Hasani
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Medical Microbiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Kourosh Masnadi Shirazi
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Reza Alivand
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bita Sepehri
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Simin Sotoudeh
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Hemmati
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Afshin Fattahzadeh
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Babak Abdinia
- Pediatric Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Ahangarzadeh Rezaee
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Medical Microbiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
- Clinical Research Development Unit of Children Educational, Research and Treatment Center, Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|
19
|
Mezerova K, Raclavsky V, Stary L. Which bacterial toxins are worthy of validation as markers in colorectal cancer screening? A critical review. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2021; 166:1-11. [PMID: 34747413 DOI: 10.5507/bp.2021.054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 08/25/2021] [Indexed: 12/21/2022] Open
Abstract
Appropriate screening of early asymptomatic cases can reduce the disease burden and mortality rate of sporadic colorectal cancer (CRC) significantly. Currently, fecal occult blood testing (FOBT) is able to detect up to 80% of asymptomatic cases in the population aged 50+. Therefore, there is still a demand for new screening tests that would complement FOBT, mainly by detecting at least a part of the FOBT-negative CRC and adenoma cases, or possibly by identifying person at increased risk of sporadic CRC in order to offer them tailored follow-up. Among the potential markers studied, our knowledge has advanced at most in toxigenic gram-negative bacteria. In this review, we assess their potential critically and recommend those best suited for prospective evaluation of their true ability to increase the sensitivity of FOBT when combined during general population screening. In our opinion, colibactin and Bacteroides fragilis toxin are the best candidates, possibly complemented by the cytotoxic necrotizing factor (CNF).
Collapse
Affiliation(s)
- Kristina Mezerova
- Department of Microbiology, Faculty of Medicine & Dentistry, Palacky University Olomouc, Czech Republic
| | - Vladislav Raclavsky
- Department of Microbiology, Faculty of Medicine & Dentistry, Palacky University Olomouc, Czech Republic
| | - Lubomir Stary
- Department of Surgery I, University Hospital Olomouc, Czech Republic
| |
Collapse
|
20
|
Payros D, Alassane-Kpembi I, Laffitte J, Lencina C, Neves M, Bracarense AP, Pinton P, Ménard S, Oswald IP. Dietary Exposure to the Food Contaminant Deoxynivalenol Triggers Colonic Breakdown by Activating the Mitochondrial and the Death Receptor Pathways. Mol Nutr Food Res 2021; 65:e2100191. [PMID: 34626057 DOI: 10.1002/mnfr.202100191] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 08/20/2021] [Indexed: 11/11/2022]
Abstract
INTRODUCTION The food contamination by mycotoxins is of increasing public health concerns. Deoxynivalenol (DON), a mycotoxin contaminating cereals, has been associated with the exacerbation of inflammatory bowel diseases (IBD), thereby raising the question of its role in the development of IBD. Moreover, the effect of DON on the colon is poorly described. METHODS AND RESULTS Wistar rats exposed (1-4 weeks) to low doses of DON (2 or 9 mg kg-1 feed) show microscopic alterations of colonic tissue (dilated lymphatic vessels, luminal debris, and cubic and flattened enterocytes). Ingestion of DON also alters colonic functions by increasing paracellular permeability while reducing the expression of the tight junction proteins and increased apoptosis in colonic tissue. Pro-apoptotic factors Bax/Bak, cytochrome C, and caspase 9 are upregulated, whereas expression of anti-apoptotic protein Bcl2 tends to decrease for the mitochondrial pathway. An increased expression of FasR and caspase-8 is observed for the extrinsic pathway. An increase in the pro-inflammatory markers TNFα, IL-17, and myeloperoxidase is also observed. CONCLUSION These results indicate that the dietary exposure to low levels of DON in food targets the colon inducing a health-threatening breakdown of the colonic barrier, highlighting oral exposure to DON as a potential risk factor in triggering IBD.
Collapse
Affiliation(s)
- Delphine Payros
- Research center in Food Toxicology, Université de Toulouse, INRAE, ENVT, INP- PURPAN, UPS, Toxalim, Toulouse, F-31027, France.,Université de Toulouse, INSERM, INRAE, ENVT, UPS, IRSD, Toulouse, France
| | - Imourana Alassane-Kpembi
- Department of Veterinary Biomedicine, Faculty of Veterinary Medicine, Université de Montréal, 3200, Rue Sicotte, Saint-Hyacinthe, Québec, J2S 2M2, Canada
| | - Joelle Laffitte
- Research center in Food Toxicology, Université de Toulouse, INRAE, ENVT, INP- PURPAN, UPS, Toxalim, Toulouse, F-31027, France
| | - Corine Lencina
- Research center in Food Toxicology, Université de Toulouse, INRAE, ENVT, INP- PURPAN, UPS, Toxalim, Toulouse, F-31027, France
| | - Manon Neves
- Research center in Food Toxicology, Université de Toulouse, INRAE, ENVT, INP- PURPAN, UPS, Toxalim, Toulouse, F-31027, France
| | - Ana Paula Bracarense
- Universidade Estadual de Londrina, Laboratory of Animal Pathology, Londrina, Parana, CP 6001, Brazil
| | - Philippe Pinton
- Research center in Food Toxicology, Université de Toulouse, INRAE, ENVT, INP- PURPAN, UPS, Toxalim, Toulouse, F-31027, France
| | - Sandrine Ménard
- Research center in Food Toxicology, Université de Toulouse, INRAE, ENVT, INP- PURPAN, UPS, Toxalim, Toulouse, F-31027, France.,Université de Toulouse, INSERM, INRAE, ENVT, UPS, IRSD, Toulouse, France
| | - Isabelle P Oswald
- Research center in Food Toxicology, Université de Toulouse, INRAE, ENVT, INP- PURPAN, UPS, Toxalim, Toulouse, F-31027, France
| |
Collapse
|
21
|
Li S, Liu J, Zheng X, Ren L, Yang Y, Li W, Fu W, Wang J, Du G. Tumorigenic bacteria in colorectal cancer: mechanisms and treatments. Cancer Biol Med 2021; 19:j.issn.2095-3941.2020.0651. [PMID: 34586760 PMCID: PMC8832957 DOI: 10.20892/j.issn.2095-3941.2020.0651] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 01/29/2021] [Indexed: 11/30/2022] Open
Abstract
Colorectal cancer (CRC) is the third most common and the second most fatal cancer. In recent years, more attention has been directed toward the role of gut microbiota in the initiation and development of CRC. Some bacterial species, such as Fusobacterium nucleatum, Escherichia coli, Bacteroides fragilis, Enterococcus faecalis, and Salmonella sp. have been associated with CRC, based upon sequencing studies in CRC patients and functional studies in cell culture and animal models. These bacteria can cause host DNA damage by genotoxic substances, including colibactin secreted by pks + Escherichia coli, B. fragilis toxin (BFT) produced by Bacteroides fragilis, and typhoid toxin (TT) from Salmonella. These bacteria can also indirectly promote CRC by influencing host-signaling pathways, such as E-cadherin/β-catenin, TLR4/MYD88/NF-κB, and SMO/RAS/p38 MAPK. Moreover, some of these bacteria can contribute to CRC progression by helping tumor cells to evade the immune response by suppressing immune cell function, creating a proinflammatory environment, or influencing the autophagy process. Treatments with the classical antibacterial drugs, metronidazole or erythromycin, the antibacterial active ingredients, M13@ Ag (electrostatically assembled from inorganic silver nanoparticles and the protein capsid of bacteriophage M13), berberine, and zerumbone, were found to inhibit tumorigenic bacteria to different degrees. In this review, we described progress in elucidating the tumorigenic mechanisms of several CRC-associated bacteria, as well as progress in developing effective antibacterial therapies. Specific bacteria have been shown to be active in the oncogenesis and progression of CRC, and some antibacterial compounds have shown therapeutic potential in bacteria-induced CRC. These bacteria may be useful as biomarkers or therapeutic targets for CRC.
Collapse
Affiliation(s)
- Sha Li
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Jinyi Liu
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Xiangjin Zheng
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Liwen Ren
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Yihui Yang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Wan Li
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Weiqi Fu
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Jinhua Wang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Guanhua Du
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| |
Collapse
|
22
|
Wang P, Zhang J, Chen Y, Zhong H, Wang H, Li J, Zhu G, Xia P, Cui L, Li J, Dong J, Gao Q, Meng X. Colibactin in avian pathogenic Escherichia coli contributes to the development of meningitis in a mouse model. Virulence 2021; 12:2382-2399. [PMID: 34529552 PMCID: PMC8451452 DOI: 10.1080/21505594.2021.1972538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Colibactin is synthesized by a 54-kb genomic island, leads to toxicity in eukaryotic cells, and plays a vital role in many diseases, including neonatal sepsis and meningitis. Avian pathogenic Escherichia coli (APEC) is speculated to be an armory of extraintestinal pathogenic Escherichia coli and can be a potential zoonotic bacterium that threatens human and animal health. In this study, the APEC XM meningitis mouse model was successfully established to investigate the effect of colibactin in in vivo infection. The clbH-deletion mutant strain induced lower γ-H2AX expression, no megalocytosis, and no cell cycle arrest in bEnd.3 cells, which showed that the deletion of clbH decreased the production of colibactin in the APEC XM strain. The deletion of clbH did not affect the APEC XM strain’s ability of adhering to and invading bEnd.3 cells. In vitro, the non-colibactin-producing strain displayed significantly lower serum resistance and it also induced a lower level of cytokine mRNA and few disruptions of tight junction proteins in infected bEnd.3 cells. Meningitis did not occur in APEC ΔclbH-infected mice in vivo, who showed fewer clinical symptoms and fewer lesions on radiological and histopathological analyses. Compared with the APEX XM strain, APEC ΔclbH induced lower bacterial colonization in tissues, lower mRNA expression of cytokines in brain tissues, and slight destruction of the brain blood barrier. These results indicate that clbH is a necessary component for the synthesis of genotoxic colibactin, and colibactin is related to the development of meningitis induced by APEC XM.
Collapse
Affiliation(s)
- Peili Wang
- College of Veterinary Medicine, Yangzhou University; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou
| | - Jiaxiang Zhang
- College of Veterinary Medicine, Yangzhou University; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou
| | - Yanfei Chen
- College of Veterinary Medicine, Yangzhou University; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou
| | - Haoran Zhong
- College of Veterinary Medicine, Yangzhou University; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou
| | - Heng Wang
- College of Veterinary Medicine, Yangzhou University; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou
| | - Jianji Li
- College of Veterinary Medicine, Yangzhou University; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou
| | - Guoqiang Zhu
- College of Veterinary Medicine, Yangzhou University; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou
| | - Pengpeng Xia
- College of Veterinary Medicine, Yangzhou University; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou
| | - Luying Cui
- College of Veterinary Medicine, Yangzhou University; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou
| | - Jun Li
- College of Veterinary Medicine, Yangzhou University; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou
| | - Junsheng Dong
- College of Veterinary Medicine, Yangzhou University; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou
| | - Qingqing Gao
- College of Veterinary Medicine, Yangzhou University; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou
| | - Xia Meng
- College of Veterinary Medicine, Yangzhou University; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou
| |
Collapse
|
23
|
Nouri R, Hasani A, Shirazi KM, Aliand MR, Sepehri B, Sotoodeh S, Hemmati F, Rezaee MA. Escherichia coli and colorectal cancer: Unfolding the enigmatic relationship. Curr Pharm Biotechnol 2021; 23:1257-1268. [PMID: 34514986 DOI: 10.2174/1389201022666210910094827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/21/2021] [Accepted: 06/07/2021] [Indexed: 11/22/2022]
Abstract
Colorectal cancer (CRC) is one of the deadliest cancers in the world. Specific strains of intestinal Escherichia coli (E. coli) may influence the initiation and development of CRC by exploiting virulence factors and inflammatory pathways. Mucosa-associated E. coli strains are more prevalent in CRC biopsies in comparison to healthy controls. Moreover, these strains can survive and replicate within macrophages and induce a pro-inflammatory response. Chronic exposure to inflammatory mediators can lead to increased cell proliferation and cancer. Production of colobactin toxin by the majority of mucosa-associated E. coli isolated from CRC patients is another notable finding. Colibactin-producing E. coli strains, in particular, induce double-strand DNA breaks, stop the cell cycle, involve in chromosomal rearrangements of mammalian cells and are implicated in carcinogenic effects in animal models. Moreover, some enteropathogenic E. coli (EPEC) strains are able to survive and replicate in colon cells as chronic intracellular pathogens and may promote susceptibility to CRC by downregulation of DNA Mismatch Repair (MMR) proteins. In this review, we discuss current evidence and focus on the mechanisms by which E. coli can influence the development of CRC.
Collapse
Affiliation(s)
- Rogayeh Nouri
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz. Iran
| | - Alka Hasani
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz. Iran
| | - Kourosh Masnadi Shirazi
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz. Iran
| | - Mohammad Reza Aliand
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz. Iran
| | - Bita Sepehri
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz. Iran
| | - Simin Sotoodeh
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz. Iran
| | - Fatemeh Hemmati
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz. Iran
| | | |
Collapse
|
24
|
Tsunematsu Y, Hosomi K, Kunisawa J, Sato M, Shibuya N, Saito E, Murakami H, Yoshikawa Y, Iwashita Y, Miyoshi N, Mutoh M, Ishikawa H, Sugimura H, Miyachi M, Wakabayashi K, Watanabe K. Mother-to-infant transmission of the carcinogenic colibactin-producing bacteria. BMC Microbiol 2021; 21:235. [PMID: 34429063 PMCID: PMC8386082 DOI: 10.1186/s12866-021-02292-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 08/09/2021] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND The Escherichia coli strain that is known to produce the genotoxic secondary metabolite colibactin is linked to colorectal oncogenesis. Therefore, understanding the properties of such colibactin-positive E. coli and the molecular mechanism of oncogenesis by colibactin may provide us with opportunities for early diagnosis or prevention of colorectal oncogenesis. While there have been major advances in the characterization of colibactin-positive E. coli and the toxin it produces, the infection route of the clb + strain remains poorly characterized. RESULTS We examined infants and their treatments during and post-birth periods to examine potential transmission of colibactin-positive E. coli to infants. Here, analysis of fecal samples of infants over the first month of birth for the presence of a colibactin biosynthetic gene revealed that the bacterium may be transmitted from mother to infant through intimate contacts, such as natural childbirth and breastfeeding, but not through food intake. CONCLUSIONS Our finding suggests that transmission of colibactin-positive E. coli appears to be occurring at the very early stage of life of the newborn and hints at the possibility of developing early preventive measures against colorectal cancer.
Collapse
Affiliation(s)
- Yuta Tsunematsu
- Department of Pharmaceutical Sciences, University of Shizuoka, 422-8526, Shizuoka, Japan
| | - Koji Hosomi
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, Laboratory of Gut Environmental System, Health and Nutrition (NIBIOHN), National Institutes of Biomedical Innovation, 567-0085, Ibaraki-city, Japan
| | - Jun Kunisawa
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, Laboratory of Gut Environmental System, Health and Nutrition (NIBIOHN), National Institutes of Biomedical Innovation, 567-0085, Ibaraki-city, Japan
| | - Michio Sato
- Department of Pharmaceutical Sciences, University of Shizuoka, 422-8526, Shizuoka, Japan
| | - Noriko Shibuya
- Department of Pediatrics, Maternal and Child Health Center, Aiiku Clinic, 106-8580, Tokyo, Japan
| | - Emiko Saito
- Department of Human Nutrition, Tokyo Kasei Gakuin University, 194-0292, Tokyo, Japan
| | - Haruka Murakami
- Department of Physical Activity Research, Health and Nutrition (NIBIOHN), National Institutes of Biomedical Innovation, 162-8636, Tokyo, Japan
| | - Yuko Yoshikawa
- School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 180-8602, Tokyo, Japan
| | - Yuji Iwashita
- Department of Tumor Pathology, Hamamatsu University School of Medicine, 431- 3192, Shizuoka, Japan
| | - Noriyuki Miyoshi
- Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 422-8526, Shizuoka, Japan
| | - Michihiro Mutoh
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, 602-8566, Kyoto, Japan
| | - Hideki Ishikawa
- Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, 602-8566, Kyoto, Japan
| | - Haruhiko Sugimura
- Department of Tumor Pathology, Hamamatsu University School of Medicine, 431- 3192, Shizuoka, Japan
| | - Motohiko Miyachi
- Department of Physical Activity Research, Health and Nutrition (NIBIOHN), National Institutes of Biomedical Innovation, 162-8636, Tokyo, Japan
| | - Keiji Wakabayashi
- Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 422-8526, Shizuoka, Japan
| | - Kenji Watanabe
- Department of Pharmaceutical Sciences, University of Shizuoka, 422-8526, Shizuoka, Japan.
| |
Collapse
|
25
|
Wang P, Zhang J, Chen Y, Zhong H, Wang H, Li J, Zhu G, Xia P, Cui L, Li J, Dong J, Gao Q, Meng X. ClbG in Avian Pathogenic Escherichia coli Contributes to Meningitis Development in a Mouse Model. Toxins (Basel) 2021; 13:546. [PMID: 34437417 PMCID: PMC8402462 DOI: 10.3390/toxins13080546] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/29/2021] [Accepted: 08/02/2021] [Indexed: 02/06/2023] Open
Abstract
Colibactin is a complex secondary metabolite that leads to genotoxicity that interferes with the eukaryotic cell cycle. It plays an important role in many diseases, including neonatal mouse sepsis and meningitis. Avian pathogenic Escherichia coli (APEC) is responsible for several diseases in the poultry industry and may threaten human health due to its potential zoonosis. In this study, we confirmed that clbG was necessary for the APEC XM strain to produce colibactin. The deletion of clbG on APEC XM contributed to lowered γH2AX expression, no megalocytosis, and no cell cycle arrest in vitro. None of the 4-week Institute of Cancer Research mice infected with the APEC XM ΔclbG contracted meningitis or displayed weakened clinical symptoms. Fewer histopathological lesions were observed in the APEC XM ΔclbG group. The bacterial colonization of tissues and the relative expression of cytokines (IL-1β, IL-6, and TNF-α) in the brains decreased significantly in the APEC XM ΔclbG group compared to those in the APEC XM group. The tight junction proteins (claudin-5, occludin, and ZO-1) were not significantly destroyed in APEC XM ΔclbG group in vivo and in vitro. In conclusion, clbG is necessary for the synthesis of the genotoxin colibactin and affects the development of APEC meningitis in mice.
Collapse
Affiliation(s)
- Peili Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (P.W.); (J.Z.); (Y.C.); (H.Z.); (H.W.); (J.L.); (G.Z.); (P.X.); (L.C.); (J.L.); (J.D.); (Q.G.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Jiaxiang Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (P.W.); (J.Z.); (Y.C.); (H.Z.); (H.W.); (J.L.); (G.Z.); (P.X.); (L.C.); (J.L.); (J.D.); (Q.G.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Yanfei Chen
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (P.W.); (J.Z.); (Y.C.); (H.Z.); (H.W.); (J.L.); (G.Z.); (P.X.); (L.C.); (J.L.); (J.D.); (Q.G.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Haoran Zhong
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (P.W.); (J.Z.); (Y.C.); (H.Z.); (H.W.); (J.L.); (G.Z.); (P.X.); (L.C.); (J.L.); (J.D.); (Q.G.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Heng Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (P.W.); (J.Z.); (Y.C.); (H.Z.); (H.W.); (J.L.); (G.Z.); (P.X.); (L.C.); (J.L.); (J.D.); (Q.G.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Jianji Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (P.W.); (J.Z.); (Y.C.); (H.Z.); (H.W.); (J.L.); (G.Z.); (P.X.); (L.C.); (J.L.); (J.D.); (Q.G.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Guoqiang Zhu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (P.W.); (J.Z.); (Y.C.); (H.Z.); (H.W.); (J.L.); (G.Z.); (P.X.); (L.C.); (J.L.); (J.D.); (Q.G.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Pengpeng Xia
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (P.W.); (J.Z.); (Y.C.); (H.Z.); (H.W.); (J.L.); (G.Z.); (P.X.); (L.C.); (J.L.); (J.D.); (Q.G.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Luying Cui
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (P.W.); (J.Z.); (Y.C.); (H.Z.); (H.W.); (J.L.); (G.Z.); (P.X.); (L.C.); (J.L.); (J.D.); (Q.G.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Jun Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (P.W.); (J.Z.); (Y.C.); (H.Z.); (H.W.); (J.L.); (G.Z.); (P.X.); (L.C.); (J.L.); (J.D.); (Q.G.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Junsheng Dong
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (P.W.); (J.Z.); (Y.C.); (H.Z.); (H.W.); (J.L.); (G.Z.); (P.X.); (L.C.); (J.L.); (J.D.); (Q.G.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Qingqing Gao
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (P.W.); (J.Z.); (Y.C.); (H.Z.); (H.W.); (J.L.); (G.Z.); (P.X.); (L.C.); (J.L.); (J.D.); (Q.G.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Xia Meng
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (P.W.); (J.Z.); (Y.C.); (H.Z.); (H.W.); (J.L.); (G.Z.); (P.X.); (L.C.); (J.L.); (J.D.); (Q.G.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| |
Collapse
|
26
|
Watanabe D, Murakami H, Ohno H, Tanisawa K, Konishi K, Todoroki-Mori K, Tsunematsu Y, Sato M, Ogata Y, Miyoshi N, Kubota N, Kunisawa J, Wakabayashi K, Kubota T, Watanabe K, Miyachi M. Stool pattern is associated with not only the prevalence of tumorigenic bacteria isolated from fecal matter but also plasma and fecal fatty acids in healthy Japanese adults. BMC Microbiol 2021; 21:196. [PMID: 34182940 PMCID: PMC8240356 DOI: 10.1186/s12866-021-02255-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 06/09/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Colibactin-producing Escherichia coli containing polyketide synthase (pks+ E. coli) has been shown to be involved in colorectal cancer (CRC) development through gut microbiota analysis in animal models. Stool status has been associated with potentially adverse gut microbiome profiles from fecal analysis in adults. We examined the association between stool patterns and the prevalence of pks+ E. coli isolated from microbiota in fecal samples of 224 healthy Japanese individuals. RESULTS Stool patterns were determined through factorial analysis using a previously validated questionnaire that included stool frequency, volume, color, shape, and odor. Factor scores were classified into tertiles. The prevalence of pks+ E. coli was determined by using specific primers for pks+ E. coli in fecal samples. Plasma and fecal fatty acids were measured via gas chromatography-mass spectrometry. The prevalence of pks+ E. coli was 26.8%. Three stool patterns identified by factorial analysis accounted for 70.1% of all patterns seen (factor 1: lower frequency, darker color, and harder shape; factor 2: higher volume and softer shape; and factor 3: darker color and stronger odor). Multivariable-adjusted odds ratios (95% confidence intervals) of the prevalence of pks+ E. coli for the highest versus the lowest third of the factor 1 score was 3.16 (1.38 to 7.24; P for trend = 0.006). This stool pattern exhibited a significant positive correlation with fecal isobutyrate, isovalerate, valerate, and hexanoate but showed a significant negative correlation with plasma eicosenoic acid and α-linoleic acid, as well as fecal propionate and succinate. No other stool patterns were significant. CONCLUSIONS These results suggest that stool patterns may be useful in the evaluation of the presence of tumorigenic bacteria and fecal fatty acids through self-monitoring of stool status without the requirement for specialist technology or skill. Furthermore, it may provide valuable insight about effective strategies for the early discovery of CRC.
Collapse
Affiliation(s)
- Daiki Watanabe
- Department of Physical Activity Research, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Tokyo, 162-8636, Japan
| | - Haruka Murakami
- Department of Physical Activity Research, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Tokyo, 162-8636, Japan
| | - Harumi Ohno
- Department of Physical Activity Research, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Tokyo, 162-8636, Japan
| | - Kumpei Tanisawa
- Department of Physical Activity Research, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Tokyo, 162-8636, Japan
| | - Kana Konishi
- Department of Physical Activity Research, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Tokyo, 162-8636, Japan
| | - Kikue Todoroki-Mori
- Department of Clinical Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Tokyo, 162-8636, Japan
| | - Yuta Tsunematsu
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan
| | - Michio Sato
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan
| | - Yuji Ogata
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan
| | - Noriyuki Miyoshi
- School of Food and Nutritional Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan
| | - Naoto Kubota
- Department of Clinical Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Tokyo, 162-8636, Japan
| | - Jun Kunisawa
- Laboratory of Vaccine Materials, Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, 567-0085, Japan
| | - Keiji Wakabayashi
- School of Food and Nutritional Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan
| | - Tetsuya Kubota
- Department of Clinical Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Tokyo, 162-8636, Japan.,Intestinal Microbiota Project, Kanagawa Institute of Industrial Science and Technology, Kanagawa, 243-0435, Japan.,Division of Diabetes and Metabolism, The Institute for Medical Science, Asahi Life Foundation, Tokyo, 103-0002, Japan
| | - Kenji Watanabe
- Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan
| | - Motohiko Miyachi
- Department of Physical Activity Research, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Tokyo, 162-8636, Japan. .,Faculty of Sport Sciences, Waseda University, Saitama, 359-1192, Japan.
| |
Collapse
|
27
|
Gut Microbiota as Potential Biomarker and/or Therapeutic Target to Improve the Management of Cancer: Focus on Colibactin-Producing Escherichia coli in Colorectal Cancer. Cancers (Basel) 2021; 13:cancers13092215. [PMID: 34063108 PMCID: PMC8124679 DOI: 10.3390/cancers13092215] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/29/2021] [Accepted: 05/01/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Gut microbiota is emerging as new diagnostic and prognostic marker and/or therapeutic target to improve the management of cancer. This review aims to summarize microbial signatures that have been associated with digestive and other cancers. We report the clinical relevance of these microbial markers to predict the response to cancer therapy. Among these biomarkers, colibactin-producing E. coli are prevalent in the colonic mucosa of patients with colorectal cancer and they promote colorectal carcinogenesis in several pre-clinical models. Here we discuss the promising use of colibactin-producing E. coli as a new predictive factor and a therapeutic target in colon cancer management. Abstract The gut microbiota is crucial for physiological development and immunological homeostasis. Alterations of this microbial community called dysbiosis, have been associated with cancers such colorectal cancers (CRC). The pro-carcinogenic potential of this dysbiotic microbiota has been demonstrated in the colon. Recently the role of the microbiota in the efficacy of anti-tumor therapeutic strategies has been described in digestive cancers and in other cancers (e.g., melanoma and sarcoma). Different bacterial species seem to be implicated in these mechanisms: F. nucleatum, B. fragilis, and colibactin-associated E. coli (CoPEC). CoPEC bacteria are prevalent in the colonic mucosa of patients with CRC and they promote colorectal carcinogenesis in susceptible mouse models of CRC. In this review, we report preclinical and clinical data that suggest that CoPEC could be a new factor predictive of poor outcomes that could be used to improve cancer management. Moreover, we describe the possibility of using these bacteria as new therapeutic targets.
Collapse
|
28
|
Strakova N, Korena K, Karpiskova R. Klebsiella pneumoniae producing bacterial toxin colibactin as a risk of colorectal cancer development - A systematic review. Toxicon 2021; 197:126-135. [PMID: 33901549 DOI: 10.1016/j.toxicon.2021.04.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 03/24/2021] [Accepted: 04/11/2021] [Indexed: 12/12/2022]
Abstract
Microbiota can significantly contribute to colorectal cancer initiation and development. It was described that E. coli harbouring polyketide synthase (pks) genes can synthetize bacterial toxin colibactin, which was first described by Nougayrede's group in 2006. E. coli positive for pks genes were overrepresented in colorectal cancer biopsies and, therefore, prevalence and the effect of pks positive bacteria as a risk factor in colorectal cancer development is in our interest. Interestingly, pks gene cluster in E. coli shares a striking 100% sequence identity with K. pneumoniae, suggesting that their function and regulation are conserved. Moreover, K. pneumoniae can express a variety of virulence factors, including capsules, siderophores, iron-scavenging systems, adhesins and endotoxins. It was reported that pks cluster and thereby colibactin is also related to the hypervirulence of K. pneumoniae. Acquisition of the pks locus is associated with K. pneumoniae gut colonisation and mucosal invasion. Colibactin also increases the likelihood of serious complications of bacterial infections, such as development of meningitis and potentially tumorigenesis. Even though K. pneumoniae is undoubtedly a gut colonizer, the role of pks positive K. pneumoniae in GIT has not yet been investigated. It seems that CRC-distinctive microbiota is already present in the early stages of cancer development and, therefore, microbiome analysis could help to discover the early stages of cancer, which are crucial for effectiveness of anticancer therapy. We hypothesize, that pks positive K. pneumoniae can be a potential biomarker of tumour prevalence and anticancer therapy response.
Collapse
Affiliation(s)
- Nicol Strakova
- Laboratory of Zoonoses and Antibiotic Resistance, Department of Microbiology and Antimicrobial Resistance, Veterinary Research Institute, Brno, Hudcova 296/70, Brno, Czech Republic.
| | - Kristyna Korena
- Laboratory of Zoonoses and Antibiotic Resistance, Department of Microbiology and Antimicrobial Resistance, Veterinary Research Institute, Brno, Hudcova 296/70, Brno, Czech Republic
| | - Renata Karpiskova
- Laboratory of Zoonoses and Antibiotic Resistance, Department of Microbiology and Antimicrobial Resistance, Veterinary Research Institute, Brno, Hudcova 296/70, Brno, Czech Republic
| |
Collapse
|
29
|
Nadalian B, Yadegar A, Houri H, Olfatifar M, Shahrokh S, Asadzadeh Aghdaei H, Suzuki H, Zali MR. Prevalence of the pathobiont adherent-invasive Escherichia coli and inflammatory bowel disease: a systematic review and meta-analysis. J Gastroenterol Hepatol 2021; 36:852-863. [PMID: 32929762 DOI: 10.1111/jgh.15260] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/08/2020] [Accepted: 09/07/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND AIM Escherichia coli pathobionts and particularly the adherent-invasive E. coli (AIEC) may play a putative role in initiating and maintaining the inflammatory process in the intestinal tissues of inflammatory bowel disease (IBD) patients, by providing stimulatory factors that trigger gut immune system activation. The aim of this study is to conduct a systematic review and meta-analysis to determine the prevalence of AIEC among patients with Crohn's disease (CD) and ulcerative colitis (UC). METHODS Electronic databases were searched up to February 2020 for relevant publications reporting the prevalence of AIEC in IBD patients. The prevalence rate of AIEC among CD and UC patients, the odds ratio (OR) and 95% confidence interval (CI) were calculated compared to non-IBD controls. RESULTS The final dataset included 12 studies, all investigating AIEC isolates from ileal/colonic specimens. The OR for prevalence of AIEC in CD patients was 3.27 (95% CI 1.79-5.9) compared with non-IBD controls. The overall pooled prevalence of AIEC among CD patients was 29% (95% CI 0.17-0.45), whereas this prevalence was calculated to be 9% (95% CI 0.03-0.19) in controls. Moreover, the prevalence of AIEC in UC subjects was calculated 12% (95% CI 0.01-0.34), while AIEC showed a prevalence of 5% (95% CI 0.0-0.17) among the controls. The OR for prevalence of AIEC in UC patients was 2.82 (95% CI 1.11-7.14) compared with controls. CONCLUSIONS There is a substantial increase in the prevalence of AIEC in IBD patients compared with controls. This review supports the growing evidence that AIEC could be involved in both CD and UC pathogenesis.
Collapse
Affiliation(s)
- Banafsheh Nadalian
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abbas Yadegar
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamidreza Houri
- Foodborne and Waterborne Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Meysam Olfatifar
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shabnam Shahrokh
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Asadzadeh Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hidekazu Suzuki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, Tokai University, Isehara, Japan
| | - Mohammad Reza Zali
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|
30
|
Abstract
Diagnosis and treatment of disease demand a sound understanding of the underlying mechanisms, determining any Achilles' heel that can be targeted in effective therapies. Throughout history, this endeavour to decipher the origin and mechanism of transformation of a normal cell into cancer has led to various theories-from cancer as a curse to an understanding at the level of single-cell heterogeneity, meaning even among a single sub-type of cancer there are myriad molecular challenges to overcome. With increasing insight into cancer genetics and biology, the disease has become ever more complex to understand. The complexity of cancer as a disease was distilled into key traits by Hanahan and Weinberg in their seminal 'Hallmarks of Cancer' reviews. This lucid conceptualization of complex cancer biology is widely accepted and has helped advance cancer therapeutics by targeting the various hallmarks but, with the advancement in technologies, there is greater granularity in how we view cancer as a disease, and the additional understanding over the past decade requires us to revisit the hallmarks of cancer. Based on extensive study of the cancer research literature, we propose four novel hallmarks of cancer, namely, the ability of cells to regress from a specific specialized functional state, epigenetic changes that can affect gene expression, the role of microorganisms and neuronal signalling, to be included in the hallmark conceptualization along with evidence of various means to exploit them therapeutically.
Collapse
Affiliation(s)
- Sasi S. Senga
- Centre for Tumour Biology, Barts Cancer Institute, Queen
Mary University of London, London EC1M
6BQ, UK
| | - Richard P. Grose
- Centre for Tumour Biology, Barts Cancer Institute, Queen
Mary University of London, London EC1M
6BQ, UK
| |
Collapse
|
31
|
Tang-Fichaux M, Chagneau CV, Bossuet-Greif N, Nougayrède JP, Oswald É, Branchu P. The Polyphosphate Kinase of Escherichia coli Is Required for Full Production of the Genotoxin Colibactin. mSphere 2020; 5:e01195-20. [PMID: 33328353 PMCID: PMC7771237 DOI: 10.1128/msphere.01195-20] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 12/15/2022] Open
Abstract
Colibactin induces DNA damage in mammalian cells and has been linked to the virulence of Escherichia coli and the promotion of colorectal cancer (CRC). By looking for mutants attenuated in the promoter activity of clbB encoding one of the key enzymes for the production of colibactin, we found that a mutant of the gene coding for the polyphosphate kinase (PPK) produced less colibactin than the parental strain. We observed this phenotype in different strains ranging from pathogens responsible for meningitis, urinary tract infection, or mouse colon carcinogenesis to the probiotic Nissle 1917. We confirmed the role of PPK by using an inhibitor of PPK enzymatic activity, mesalamine (also known as 5-aminosalicylic acid). Interestingly, mesalamine has a local anti-inflammatory effect on the epithelial cells of the colon and is used to treat inflammatory bowel disease (IBD). Upon treatment with mesalamine, a decreased genotoxicity of colibactin-producing E. coli was observed both on epithelial cells and directly on purified DNA. This demonstrates the direct effect of mesalamine on bacteria independently from its anti-inflammatory effect on eukaryotic cells. Our results suggest that the mechanisms of action of mesalamine in treating IBD and preventing CRC could also lie in the inhibition of colibactin production. All in all, we demonstrate that PPK is required for the promoter activity of clbB and the production of colibactin, which suggests that PPK is a promising target for the development of anticolibactin and antivirulence strategies.IMPORTANCE Colibactin-producing E. coli induces DNA damage in eukaryotic cells and promotes tumor formation in mouse models of intestinal inflammation. Recent studies have provided strong evidence supporting the causative role of colibactin in human colorectal cancer (CRC) progression. Therefore, it is important to understand the regulation of the production of this genotoxin. Here, we demonstrate that polyphosphate kinase (PPK) is required for the promoter activity of clbB and the production of colibactin. Interestingly, PPK is a multifunctional player in bacterial virulence and stress responses and has been proposed as a new target for developing antimicrobial medicine. We observed inhibition of colibactin production by using a previously identified PPK inhibitor (i.e., mesalamine, an anti-inflammatory drug commonly prescribed for inflammatory bowel diseases). These data brought us a new perspective on the regulatory network of colibactin production and provided us a clue for the development of anticolibactin strategies for CRC treatment/prophylaxis.
Collapse
Affiliation(s)
- Min Tang-Fichaux
- IRSD, Université de Toulouse, INSERM, INRAE, ENVT, UPS, Toulouse, France
| | - Camille V Chagneau
- IRSD, Université de Toulouse, INSERM, INRAE, ENVT, UPS, Toulouse, France
| | | | | | - Éric Oswald
- IRSD, Université de Toulouse, INSERM, INRAE, ENVT, UPS, Toulouse, France
- CHU Toulouse, Service de Bactériologie-Hygiène, Toulouse, France
| | - Priscilla Branchu
- IRSD, Université de Toulouse, INSERM, INRAE, ENVT, UPS, Toulouse, France
| |
Collapse
|
32
|
Thum C, Young W, Montoya CA, Roy NC, McNabb WC. In vitro Fermentation of Digested Milk Fat Globule Membrane From Ruminant Milk Modulates Piglet Ileal and Caecal Microbiota. Front Nutr 2020; 7:91. [PMID: 32733910 PMCID: PMC7363764 DOI: 10.3389/fnut.2020.00091] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 05/15/2020] [Indexed: 12/12/2022] Open
Abstract
Lipids in milk are secreted as a triacylglycerol core surrounded by a trilayer membrane, the milk fat globule membrane (MFGM). This membrane, known to have important roles in infant brain and intestinal development, is composed of proteins, glycoproteins, and complex lipids. We hypothesized that some of the beneficial properties of MFGM are due to its effects on the gastrointestinal microbiota. This study aimed to determine the effect of a commercial phospholipid concentrate (PC) and enriched bovine, caprine, and ovine MFGM fractions on ileal and hindgut microbiota in vitro. Digestion of PC and MFGMs was conducted using an in vitro model based on infant gastric and small intestine conditions. The recovered material was then in vitro fermented with ileal and caecal inocula prepared from five piglets fed a commercial formula for 20 days before ileal and caecal digesta were collected. After each fermentation, samples were collected to determine organic acid production and microbiota composition using 16S rRNA sequencing. All substrates, except PC (5%), were primarily fermented by the ileal microbiota (8–14%) (P < 0.05). PC and caprine MFGM reduced ileal microbiota alpha diversity compared to ileal inoculum. Caprine MFGM increased and PC reduced the ileal ratio of firmicutes:proteobacteria (P < 0.05), respectively, compared to the ileal inoculum. Bovine and ovine MFGMs increased ileal production of acetic, butyric, and caproic acids compared to other substrates and reduced the proportions of ileal proteobacteria (P < 0.0001). There was a limited fermentation of bovine (3%), caprine (2%), and ovine (2%) MFGMs by the caecal microbiota compared to PC (14%). In general, PC and all MFGMs had a reduced effect on caecal microbiota at a phylum level although MFG source-specific effects were observed at the genus level. These indicate that the main effects of the MFGM in the intestinal microbial population appears to occur in the ileum.
Collapse
Affiliation(s)
- Caroline Thum
- Food Nutrition & Health Team, AgResearch, Grasslands Research Centre, Palmerston North, New Zealand.,Riddet Institute, Massey University, Palmerston North, New Zealand
| | - Wayne Young
- Food Nutrition & Health Team, AgResearch, Grasslands Research Centre, Palmerston North, New Zealand.,Riddet Institute, Massey University, Palmerston North, New Zealand.,High-Value Nutrition National Science Challenge, Auckland, New Zealand
| | - Carlos A Montoya
- Food Nutrition & Health Team, AgResearch, Grasslands Research Centre, Palmerston North, New Zealand.,Riddet Institute, Massey University, Palmerston North, New Zealand
| | - Nicole C Roy
- Food Nutrition & Health Team, AgResearch, Grasslands Research Centre, Palmerston North, New Zealand.,Riddet Institute, Massey University, Palmerston North, New Zealand.,High-Value Nutrition National Science Challenge, Auckland, New Zealand
| | - Warren C McNabb
- Riddet Institute, Massey University, Palmerston North, New Zealand.,High-Value Nutrition National Science Challenge, Auckland, New Zealand
| |
Collapse
|
33
|
Abstract
Infections of genotoxic Escherichia coli spread concomitantly with urbanized progression. These bacteria may prompt cell senescence and affect DNA stability, inducing cancer via the production of colibactin, a genotoxin shown capable of affecting host DNA in eukaryotic cells. In this study, we show that the action of colibactin may also be directed against other bacteria of the gut microbiota in which genotoxic E. coli bacteria have been introduced. Indeed, the presence of genotoxic E. coli induced a change in both the structure and function of the gut microbiota. Our data indicate that genotoxic E. coli may use colibactin to compete for gut niche utilization. The genotoxin colibactin produced by resident bacteria of the gut microbiota may have tumorigenic effect by inducing DNA double-strand breaks in host cells. Yet, the effect of colibactin on gut microbiota composition and functions remains unknown. To address this point, we designed an experiment in which pregnant mice were colonized with the following: (i) a commensal Escherichia coli strain, (ii) a commensal E. coli strain plus a genotoxic E. coli strain, (iii) a commensal E. coli strain plus a nongenotoxic E. coli mutant strain unable to produce mature colibactin. Then, we analyzed the gut microbiota in pups at day 15 and day 35 after birth. At day 15, mice that were colonized at birth with the genotoxic strain showed lower levels of Proteobacteria and taxa belonging to the Proteobacteria, a modest effect on overall microbial diversity, and no effect on gut microbiome. At day 35, mice that received the genotoxic strain showed lower Firmicutes and taxa belonging to the Firmicutes, together with a strong effect on overall microbial diversity and higher microbial functions related to DNA repair. Moreover, the genotoxic strain strongly affected gut microbial diversity evolution of pups receiving the genotoxic strain between day 15 and day 35. Our data show that colibactin, beyond targeting the host, may also exert its genotoxic effect on the gut microbiota. IMPORTANCE Infections of genotoxic Escherichia coli spread concomitantly with urbanized progression. These bacteria may prompt cell senescence and affect DNA stability, inducing cancer via the production of colibactin, a genotoxin shown capable of affecting host DNA in eukaryotic cells. In this study, we show that the action of colibactin may also be directed against other bacteria of the gut microbiota in which genotoxic E. coli bacteria have been introduced. Indeed, the presence of genotoxic E. coli induced a change in both the structure and function of the gut microbiota. Our data indicate that genotoxic E. coli may use colibactin to compete for gut niche utilization.
Collapse
|
34
|
Silbergleit M, Vasquez AA, Miller CJ, Sun J, Kato I. Oral and intestinal bacterial exotoxins: Potential linked to carcinogenesis. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2020; 171:131-193. [PMID: 32475520 DOI: 10.1016/bs.pmbts.2020.02.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Growing evidence suggests that imbalances in resident microbes (dysbiosis) can promote chronic inflammation, immune-subversion, and production of carcinogenic metabolites, thus leading to neoplasia. Yet, evidence to support a direct link of individual bacteria species to human sporadic cancer is still limited. This chapter focuses on several emerging bacterial toxins that have recently been characterized for their potential oncogenic properties toward human orodigestive cancer and the presence of which in human tissue samples has been documented. These include cytolethal distending toxins produced by various members of gamma and epsilon Proteobacteria, Dentilisin from mammalian oral Treponema, Pasteurella multocida toxin, two Fusobacterial toxins, FadA and Fap2, Bacteroides fragilis toxin, colibactin, cytotoxic necrotizing factors and α-hemolysin from Escherichia coli, and Salmonella enterica AvrA. It was clear that these bacterial toxins have biological activities to induce several hallmarks of cancer. Some toxins directly interact with DNA or chromosomes leading to their breakdowns, causing mutations and genome instability, and others modulate cell proliferation, replication and death and facilitate immune evasion and tumor invasion, prying specific oncogene and tumor suppressor pathways, such as p53 and β-catenin/Wnt. In addition, most bacterial toxins control tumor-promoting inflammation in complex and diverse mechanisms. Despite growing laboratory evidence to support oncogenic potential of selected bacterial toxins, we need more direct evidence from human studies and mechanistic data from physiologically relevant experimental animal models, which can reflect chronic infection in vivo, as well as take bacterial-bacterial interactions among microbiome into consideration.
Collapse
Affiliation(s)
| | - Adrian A Vasquez
- Department of Civil and Environmental Engineering, Wayne State University, Healthy Urban Waters, Detroit, MI, United States
| | - Carol J Miller
- Department of Civil and Environmental Engineering, Wayne State University, Healthy Urban Waters, Detroit, MI, United States
| | - Jun Sun
- Department of Medicine, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Ikuko Kato
- Department of Oncology, Wayne State University School of Medicine, Detroit, MI, United States; Department of Pathology, Wayne State University School of Medicine, Detroit, MI, United States.
| |
Collapse
|
35
|
Pleguezuelos-Manzano C, Puschhof J, Rosendahl Huber A, van Hoeck A, Wood HM, Nomburg J, Gurjao C, Manders F, Dalmasso G, Stege PB, Paganelli FL, Geurts MH, Beumer J, Mizutani T, Miao Y, van der Linden R, van der Elst S, Garcia KC, Top J, Willems RJL, Giannakis M, Bonnet R, Quirke P, Meyerson M, Cuppen E, van Boxtel R, Clevers H. Mutational signature in colorectal cancer caused by genotoxic pks + E. coli. Nature 2020; 580:269-273. [PMID: 32106218 PMCID: PMC8142898 DOI: 10.1038/s41586-020-2080-8] [Citation(s) in RCA: 535] [Impact Index Per Article: 133.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Accepted: 02/17/2020] [Indexed: 02/06/2023]
Abstract
Various species of the intestinal microbiota have been associated with the development of colorectal cancer1,2, but it has not been demonstrated that bacteria have a direct role in the occurrence of oncogenic mutations. Escherichia coli can carry the pathogenicity island pks, which encodes a set of enzymes that synthesize colibactin3. This compound is believed to alkylate DNA on adenine residues4,5 and induces double-strand breaks in cultured cells3. Here we expose human intestinal organoids to genotoxic pks+ E. coli by repeated luminal injection over five months. Whole-genome sequencing of clonal organoids before and after this exposure revealed a distinct mutational signature that was absent from organoids injected with isogenic pks-mutant bacteria. The same mutational signature was detected in a subset of 5,876 human cancer genomes from two independent cohorts, predominantly in colorectal cancer. Our study describes a distinct mutational signature in colorectal cancer and implies that the underlying mutational process results directly from past exposure to bacteria carrying the colibactin-producing pks pathogenicity island.
Collapse
Affiliation(s)
- Cayetano Pleguezuelos-Manzano
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and UMC Utrecht, Utrecht, The Netherlands
- Oncode Institute, Utrecht, The Netherlands
| | - Jens Puschhof
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and UMC Utrecht, Utrecht, The Netherlands
- Oncode Institute, Utrecht, The Netherlands
| | - Axel Rosendahl Huber
- Oncode Institute, Utrecht, The Netherlands
- The Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Arne van Hoeck
- Oncode Institute, Utrecht, The Netherlands
- Center for Molecular Medicine, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Henry M Wood
- Pathology and Data Analytics, Leeds Institute of Medical Research at St James's, University of Leeds, Leeds, UK
| | - Jason Nomburg
- Graduate Program in Virology, Division of Medical Sciences, Harvard Medical School, Boston, MA, USA
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Carino Gurjao
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Freek Manders
- Oncode Institute, Utrecht, The Netherlands
- The Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Guillaume Dalmasso
- University Clermont Auvergne, Inserm U1071, INRA USC2018, M2iSH, Clermont-Ferrand, France
| | - Paul B Stege
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Fernanda L Paganelli
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Maarten H Geurts
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and UMC Utrecht, Utrecht, The Netherlands
- Oncode Institute, Utrecht, The Netherlands
| | - Joep Beumer
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and UMC Utrecht, Utrecht, The Netherlands
| | - Tomohiro Mizutani
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and UMC Utrecht, Utrecht, The Netherlands
- Oncode Institute, Utrecht, The Netherlands
| | - Yi Miao
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA, USA
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, USA
| | - Reinier van der Linden
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and UMC Utrecht, Utrecht, The Netherlands
| | - Stefan van der Elst
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and UMC Utrecht, Utrecht, The Netherlands
| | - K Christopher Garcia
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA, USA
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, USA
| | - Janetta Top
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Rob J L Willems
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Marios Giannakis
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Richard Bonnet
- University Clermont Auvergne, Inserm U1071, INRA USC2018, M2iSH, Clermont-Ferrand, France
- Department of Bacteriology, University Hospital of Clermont-Ferrand, Clermont-Ferrand, France
| | - Phil Quirke
- Pathology and Data Analytics, Leeds Institute of Medical Research at St James's, University of Leeds, Leeds, UK
| | - Matthew Meyerson
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Edwin Cuppen
- Oncode Institute, Utrecht, The Netherlands
- Center for Molecular Medicine, University Medical Centre Utrecht, Utrecht, The Netherlands
- Hartwig Medical Foundation, Amsterdam, The Netherlands
- CPCT Consortium, Rotterdam, The Netherlands
| | - Ruben van Boxtel
- Oncode Institute, Utrecht, The Netherlands.
- The Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.
| | - Hans Clevers
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and UMC Utrecht, Utrecht, The Netherlands.
- Oncode Institute, Utrecht, The Netherlands.
- The Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.
| |
Collapse
|
36
|
Martin OC, Frisan T. Bacterial Genotoxin-Induced DNA Damage and Modulation of the Host Immune Microenvironment. Toxins (Basel) 2020; 12:toxins12020063. [PMID: 31973033 PMCID: PMC7076804 DOI: 10.3390/toxins12020063] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 01/14/2020] [Accepted: 01/18/2020] [Indexed: 01/10/2023] Open
Abstract
: Bacterial genotoxins (BTGX) induce DNA damage, which results in senescence or apoptosis of the target cells if not properly repaired. Three BTGXs have been identified: the cytolethal distending toxin (CDT) family produced by several Gram-negative bacteria, the typhoid toxin produced by several Salmonella enterica serovars, and colibactin, a peptide-polyketide, produced mainly by the phylogenetic group B2 Escherichia coli. The cellular responses induced by BTGXs resemble those of well-characterized carcinogenic agents, and several lines of evidence indicate that bacteria carrying genotoxin genes can contribute to tumor development under specific circumstances. Given their unusual mode of action, it is still enigmatic why these effectors have been acquired by microbes and what is their role in the context of the biology of the producing bacterium, since it is unlikely that their primary purpose is to induce/promote cancer in the mammalian host. In this review, we will discuss the possibility that the DNA damage induced by BTGX modulates the host immune response, acting as immunomodulator, leading to the establishment of a suitable niche for the producing bacterium. We will further highlight open questions that remain to be solved regarding the biology of this unusual family of bacterial toxins.
Collapse
Affiliation(s)
- Océane C.B. Martin
- Univ. Bordeaux, INSERM, UMR1053 Bordeaux Research in Translational Oncology, BaRITOn, 33320 Bordeaux, France;
| | - Teresa Frisan
- Department of Cell and Molecular Biology Karolinska Institutet, 17177 Stockholm, Sweden
- Umeå Center for Microbial Research (UCMR), Umeå University, 90187 Umeå, Sweden
- Department of Molecular Biology, Umeå University, 90187 Umeå, Sweden
- Correspondence:
| |
Collapse
|
37
|
Affiliation(s)
- Jacqueline I. Keenan
- Department of Surgery, University of Otago Christchurch, Christchurch, New Zealand
| | - Frank A. Frizelle
- Department of Surgery, University of Otago Christchurch, Christchurch, New Zealand
| |
Collapse
|
38
|
Ghalayini M, Magnan M, Dion S, Zatout O, Bourguignon L, Tenaillon O, Lescat M. Long-term evolution of the natural isolate of Escherichia coli 536 in the mouse gut colonized after maternal transmission reveals convergence in the constitutive expression of the lactose operon. Mol Ecol 2019; 28:4470-4485. [PMID: 31482587 DOI: 10.1111/mec.15232] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 07/24/2019] [Indexed: 02/02/2023]
Abstract
In vitro experimental evolution has taught us many lessons on the molecular bases of adaptation. To move towards more natural settings, evolution in the mice gut has been successfully performed. Yet, these experiments suffered from the use of laboratory strains as well as the use of axenic or streptomycin-treated mice to maintain the inoculated strains. To circumvent these limitations, we conducted a one-year experimental evolution in vivo using a natural isolate of E. coli, strain 536, in conditions mimicking as much as possible natural environment with mother-to-offspring microbiota transmission. Mice were then distributed in 24 independent cages and separated into two different diets: a regular one (chow diet, CD) and high-fat and high-sugar one (Western Diet, WD). Genome sequences revealed an early and rapid selection during the breastfeeding period that selected the constitutive expression of the well-characterized lactose operon. E. coli was lost significantly more in CD than WD; however, we could not detect any genomic signature of selection, nor any diet specificities during the later part of the experiments. The apparently neutral evolution presumably due to low population size maintained nevertheless at high frequency the early selected mutations affecting lactose regulation. The rapid loss of lactose operon regulation challenges the idea that plastic gene expression is both optimal and stable in the wild.
Collapse
Affiliation(s)
- Mohamed Ghalayini
- IAME, INSERM, Université Paris 13, Bobigny, France.,Service de Réanimation Médico-Chirurgicale, Hôpital Avicenne, AP - HP, Bobigny, France.,IAME, INSERM, Université de Paris, Paris, France
| | - Melanie Magnan
- IAME, INSERM, Université Paris 13, Bobigny, France.,IAME, INSERM, Université de Paris, Paris, France
| | - Sara Dion
- IAME, INSERM, Université Paris 13, Bobigny, France.,IAME, INSERM, Université de Paris, Paris, France
| | | | - Lucie Bourguignon
- IAME, INSERM, Université de Paris, Paris, France.,École de l'Inserm Liliane Bettencourt, Paris, France
| | - Olivier Tenaillon
- IAME, INSERM, Université Paris 13, Bobigny, France.,IAME, INSERM, Université de Paris, Paris, France
| | - Mathilde Lescat
- IAME, INSERM, Université Paris 13, Bobigny, France.,IAME, INSERM, Université de Paris, Paris, France.,Service de Microbiologie, Hôpital Avicenne, AP - HP, Bobigny, France
| |
Collapse
|
39
|
Macrocyclic colibactin induces DNA double-strand breaks via copper-mediated oxidative cleavage. Nat Chem 2019; 11:880-889. [PMID: 31527851 PMCID: PMC6761029 DOI: 10.1038/s41557-019-0317-7] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 07/24/2019] [Indexed: 12/13/2022]
Abstract
Colibactin is an assumed human gut bacterial genotoxin, whose biosynthesis is linked to clb genomic island that distributes widespread in pathogenic and commensal human enterobacteria. Colibactin-producing gut microbes promote colon tumor formation and enhance progression of colorectal cancer via DNA double-strand breaks-induced cellular senescence and death; however, the chemical basis contributing to the pathogenesis at the molecular level has not been fully characterized. Here we report the discovery of colibactin-645 a macrocyclic colibactin metabolite that recapitulates the previously assumed genotoxicity and cytotoxicity. Colibactin-645 shows strong DNA DSBs activity in vitro and in human cell cultures via a unique copper-mediated oxidative mechanism. We also delineate a complete biosynthetic model for colibactin-645, highlighting a unique fate of the aminomalonate building monomer in forming the C-terminal 5-hydroxy 4-oxazolecarboxylic acid moiety through the activities of both the polyketide synthase ClbO and the amidase ClbL. This work thus provides a molecular basis for colibactin’s DNA DSBs activity and facilitates further mechanistic study of colibactin-related CRC incidence and prevention.
Collapse
|
40
|
Massip C, Branchu P, Bossuet-Greif N, Chagneau CV, Gaillard D, Martin P, Boury M, Sécher T, Dubois D, Nougayrède JP, Oswald E. Deciphering the interplay between the genotoxic and probiotic activities of Escherichia coli Nissle 1917. PLoS Pathog 2019; 15:e1008029. [PMID: 31545853 PMCID: PMC6776366 DOI: 10.1371/journal.ppat.1008029] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 10/03/2019] [Accepted: 08/14/2019] [Indexed: 12/28/2022] Open
Abstract
Although Escherichia coli Nissle 1917 (EcN) has been used therapeutically for over a century, the determinants of its probiotic properties remain elusive. EcN produces two siderophore-microcins (Mcc) responsible for an antagonistic activity against other Enterobacteriaceae. EcN also synthesizes the genotoxin colibactin encoded by the pks island. Colibactin is a virulence factor and a putative pro-carcinogenic compound. Therefore, we aimed to decouple the antagonistic activity of EcN from its genotoxic activity. We demonstrated that the pks-encoded ClbP, the peptidase that activates colibactin, is required for the antagonistic activity of EcN. The analysis of a series of ClbP mutants revealed that this activity is linked to the transmembrane helices of ClbP and not the periplasmic peptidase domain, indicating the transmembrane domain is involved in some aspect of Mcc biosynthesis or secretion. A single amino acid substitution in ClbP inactivates the genotoxic activity but maintains the antagonistic activity. In an in vivo salmonellosis model, this point mutant reduced the clinical signs and the fecal shedding of Salmonella similarly to the wild type strain, whereas the clbP deletion mutant could neither protect nor outcompete the pathogen. The ClbP-dependent antibacterial effect was also observed in vitro with other E. coli strains that carry both a truncated form of the Mcc gene cluster and the pks island. In such strains, siderophore-Mcc synthesis also required the glucosyltransferase IroB involved in salmochelin production. This interplay between colibactin, salmochelin, and siderophore-Mcc biosynthetic pathways suggests that these genomic islands were co-selected and played a role in the evolution of E. coli from phylogroup B2. This co-evolution observed in EcN illustrates the fine margin between pathogenicity and probiotic activity, and the need to address both the effectiveness and safety of probiotics. Decoupling the antagonistic from the genotoxic activity by specifically inactivating ClbP peptidase domain opens the way to the safe use of EcN.
Collapse
Affiliation(s)
- Clémence Massip
- IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France
- CHU Toulouse, Hôpital Purpan, Service de Bactériologie-Hygiène, Toulouse, France
| | - Priscilla Branchu
- IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France
| | | | | | - Déborah Gaillard
- IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France
| | - Patricia Martin
- IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France
| | - Michèle Boury
- IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France
| | - Thomas Sécher
- IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France
| | - Damien Dubois
- IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France
- CHU Toulouse, Hôpital Purpan, Service de Bactériologie-Hygiène, Toulouse, France
| | | | - Eric Oswald
- IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France
- CHU Toulouse, Hôpital Purpan, Service de Bactériologie-Hygiène, Toulouse, France
| |
Collapse
|
41
|
Morgan RN, Saleh SE, Farrag HA, Aboulwafa MM. Prevalence and pathologic effects of colibactin and cytotoxic necrotizing factor-1 (Cnf 1) in Escherichia coli: experimental and bioinformatics analyses. Gut Pathog 2019; 11:22. [PMID: 31139264 PMCID: PMC6525971 DOI: 10.1186/s13099-019-0304-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 05/02/2019] [Indexed: 12/29/2022] Open
Abstract
Background The colibactin and cytotoxic necrotizing factor 1 (Cnf 1) are toxins with cell cycle modulating effects that contribute to tumorgenesis and hyperproliferation. This study aimed to investigate the prevalence and pathologic effects of Cnf 1 and colibactin among hemolytic uropathogenic Escherichia coli (UPEC). The bioinformatics approach incorporated in this study aimed to expand the domain of the in vitro study and explore the prevalence of both toxins among other bacterial species. A total of 125 E. coli isolates were recovered from UTIs patients. The isolates were tested for their hemolytic activity, subjected to tissue culture and PCR assays to detect the phenotypic and genotypic features of both toxins. A rat ascending UTI in vivo model was conducted using isolates expressing or non-expressing Cnf 1 and colibactin (ClbA and ClbQ). The bioinformatics analyses were inferred by Maximum likelihood method and the evolutionary relatedness was deduced by MEGA X. Results Only 21 (16.8%) out of 125 isolates were hemolytic and 10 of these (47.62%) harbored the toxins encoding genes (cnf 1+, clbA+ and clbQ+). The phenotypic features of both toxins were exhibited by only 7 of the (cnf 1+clbA+clbQ+) harboring isolates. The severest infections, hyperplastic and genotoxic changes in kidneys and bladders were observed in rats infected with the cnf 1+clbA+clbQ+ isolates. Conclusion Only 33.3% of the hemolytic UPEC isolates exhibited the phenotypic and genotypic features of Cnf 1 and Colibactin. The in vivo animal model results gives an evidence of active Cnf 1 and Colibactin expression and indicates the risks associated with recurrent and chronic UTIs caused by UPEC. The bioinformatics analyses confirmed the predominance of colibactin pks island among Enterobacteriaceae family (92.86%), with the highest occurrence among Escherichia species (53.57%), followed by Klebsiella (28.57%), Citrobacter (7.14%), and Enterobacter species (3.57%). The Cnf 1 is predominant among Escherichia coli (94.05%) and sporadically found among Shigella species (1.08%), Salmonella enterica (0.54%), Yersinia pseudotuberculosis (1.08%), Photobacterium (1.08%), Moritella viscosa (0.54%), and Carnobacterium maltaromaticum (0.54%). A close relatedness was observed between the 54-kb pks island of Escherichia coli, the probiotic Escherichia coli Nissle 1917, Klebsiella aerogenes, Klebsiella pneumoniae and Citrobacter koseri. Electronic supplementary material The online version of this article (10.1186/s13099-019-0304-y) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Radwa N Morgan
- 1Drug Radiation Research Department, National Centre for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), 3 Ahmed El-Zomor Street, Nasr City, Cairo, 11787 Egypt
| | - Sarra E Saleh
- 2Microbiology and Immunology Department, Faculty of Pharmacy, Ain Shams University, African Union Organization Street, Abbassia, Cairo, 11566 Egypt
| | - Hala A Farrag
- 1Drug Radiation Research Department, National Centre for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), 3 Ahmed El-Zomor Street, Nasr City, Cairo, 11787 Egypt
| | - Mohammad M Aboulwafa
- 2Microbiology and Immunology Department, Faculty of Pharmacy, Ain Shams University, African Union Organization Street, Abbassia, Cairo, 11566 Egypt
| |
Collapse
|
42
|
Kurnick SA, Mannion AJ, Feng Y, Madden CM, Chamberlain P, Fox JG. Genotoxic Escherichia coli Strains Encoding Colibactin, Cytolethal Distending Toxin, and Cytotoxic Necrotizing Factor in Laboratory Rats. Comp Med 2019; 69:103-113. [PMID: 30902120 PMCID: PMC6464076 DOI: 10.30802/aalas-cm-18-000099] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 10/13/2018] [Accepted: 11/29/2018] [Indexed: 02/06/2023]
Abstract
Although many Escherichia coli strains are considered commensals in mammals, strains encoding the cyclomodulin genotoxins are associated with clinical and subclinical disease in the urogenital and gastrointestinal tracts, meningitis, and inflammatory disorders. These genotoxins include the polyketide synthase (pks) pathogenicity island, cytolethal distending toxin (cdt), and hemolysin-associated cytotoxic necrotizing factor (cnf). E. coli strains are not excluded from rodents housed under SPF conditions in academic or vendor facilities. This study isolated and characterized genotoxin-encoding E. coli from laboratory rats obtained from 4 academic institutions and 3 vendors. A total of 69 distinct E. coli isolates were cultured from feces, rectal swab, nares, or vaginal swab of 52 rats and characterized biochemically. PCR analysis for cyclomodulin genes and phylogroup was performed on all 69 isolates. Of the 69 isolates, 45 (65%) were positive for pks, 20/69 (29%) were positive for cdt, and 4 (6%) were positive for cnf. Colibactin was the sole genotoxin identified in 21 of 45 pks+ isolates (47%), whereas cdt or cnf was also present in the remaining 24 isolates (53%); cdt and cnf were never present together or without pks. All genotoxin-associated strains were members of pathogen-associated phylogroup B2. Fisher exact and χ² tests demonstrated significant differences in genotoxin prevalence and API code distribution with regard to vendor. Select E. coli isolates were characterized by HeLa cell in vitro cytotoxicity assays, serotyped, and whole-genome sequenced. All isolates encoding cyclomodulins induced megalocytosis. Serotypes corresponded with vendor origin and cyclomodulin composition, with the cnf+ serotype representing a known human uropathogen. Whole-genome sequencing confirmed the presence of complete pks, cdt, and hemolysin-cnf pathogenicity islands. These findings indicate that genotoxin-encoding E. coli colonize laboratory rats from multiple commercial vendors and academic institutions and suggest the potential to contribute to clinical disease and introduce confounding variables into experimental rat models.
Collapse
Affiliation(s)
- Susanna A Kurnick
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Anthony J Mannion
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Yan Feng
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Carolyn M Madden
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Paul Chamberlain
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - James G Fox
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts;,
| |
Collapse
|
43
|
Abstract
An
E. coli
–derived colibactin-DNA adduct is detected in intestinal tissues
Collapse
Affiliation(s)
- Rachel M Bleich
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC, USA
| | - Janelle C Arthur
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC, USA.
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
- Center for Gastrointestinal Biology and Disease, University of North Carolina, Chapel Hill, NC, USA
| |
Collapse
|
44
|
Klebsiella oxytoca enterotoxins tilimycin and tilivalline have distinct host DNA-damaging and microtubule-stabilizing activities. Proc Natl Acad Sci U S A 2019; 116:3774-3783. [PMID: 30808763 PMCID: PMC6397511 DOI: 10.1073/pnas.1819154116] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Human gut microbes form a complex community with vast biosynthetic potential. Microbial products and metabolites released in the gut impact human health and disease. However, defining causative relationships between specific bacterial products and disease initiation and progression remains an immense challenge. This study advances understanding of the functional capacity of the gut microbiota by determining the presence, concentration, and spatial and temporal variability of two enterotoxic metabolites produced by the gut-resident Klebsiella oxytoca. We present a detailed mode of action for the cytotoxins and recapitulate their functionalities in disease models in vivo. The findings provide distinct molecular mechanisms for the enterotoxicity of the metabolites allowing them to act in tandem to damage the intestinal epithelium and cause colitis. Establishing causal links between bacterial metabolites and human intestinal disease is a significant challenge. This study reveals the molecular basis of antibiotic-associated hemorrhagic colitis (AAHC) caused by intestinal resident Klebsiella oxytoca. Colitogenic strains produce the nonribosomal peptides tilivalline and tilimycin. Here, we verify that these enterotoxins are present in the human intestine during active colitis and determine their concentrations in a murine disease model. Although both toxins share a pyrrolobenzodiazepine structure, they have distinct molecular targets. Tilimycin acts as a genotoxin. Its interaction with DNA activates damage repair mechanisms in cultured cells and causes DNA strand breakage and an increased lesion burden in cecal enterocytes of colonized mice. In contrast, tilivalline binds tubulin and stabilizes microtubules leading to mitotic arrest. To our knowledge, this activity is unique for microbiota-derived metabolites of the human intestine. The capacity of both toxins to induce apoptosis in intestinal epithelial cells—a hallmark feature of AAHC—by independent modes of action, strengthens our proposal that these metabolites act collectively in the pathogenicity of colitis.
Collapse
|
45
|
Secher T, Maillet I, Mackowiak C, Le Bérichel J, Philippeau A, Panek C, Boury M, Oswald E, Saoudi A, Erard F, Le Bert M, Quesniaux V, Couturier-Maillard A, Ryffel B. The probiotic strain Escherichia coli Nissle 1917 prevents papain-induced respiratory barrier injury and severe allergic inflammation in mice. Sci Rep 2018; 8:11245. [PMID: 30050168 PMCID: PMC6062509 DOI: 10.1038/s41598-018-29689-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 07/16/2018] [Indexed: 02/07/2023] Open
Abstract
Allergic asthma is characterized by a strong Th2 and Th17 response with inflammatory cell recruitment, airways hyperreactivity and structural changes in the lung. The protease allergen papain disrupts the airway epithelium triggering a rapid eosinophilic inflammation by innate lymphoid cell type 2 (ILC2) activation, leading to a Th2 immune response. Here we asked whether the daily oral administrations of the probiotic Escherichia coli strain Nissle 1917 (ECN) might affect the outcome of the papain protease induced allergic lung inflammation in BL6 mice. We find that ECN gavage significantly prevented the severe allergic response induced by repeated papain challenges and reduced lung inflammatory cell recruitment, Th2 and Th17 response and respiratory epithelial barrier disruption with emphysema and airway hyperreactivity. In conclusion, ECN administration attenuated severe protease induced allergic inflammation, which may be beneficial to prevent allergic asthma.
Collapse
Affiliation(s)
- Thomas Secher
- IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France. .,INSERM, UMR 1100, Research Center for Respiratory Diseases, and University of Tours, Tours, France.
| | - Isabelle Maillet
- CNRS, UMR7355, Experimental and Molecular Immunology and Neurogenetics, Orleans, France
| | - Claire Mackowiak
- CNRS, UMR7355, Experimental and Molecular Immunology and Neurogenetics, Orleans, France
| | - Jessica Le Bérichel
- CNRS, UMR7355, Experimental and Molecular Immunology and Neurogenetics, Orleans, France
| | - Amandine Philippeau
- CNRS, UMR7355, Experimental and Molecular Immunology and Neurogenetics, Orleans, France
| | - Corinne Panek
- CNRS, UMR7355, Experimental and Molecular Immunology and Neurogenetics, Orleans, France
| | - Michèle Boury
- IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France
| | - Eric Oswald
- IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France.,CHU Toulouse, Hôpital Purpan, Service de Bactériologie-Hygiène, Toulouse, France
| | - Abdelhadi Saoudi
- Centre de Physiopathologie de Toulouse Purpan (CPTP), Université de Toulouse, UPS, Inserm, CNRS, Toulouse, France
| | - Francois Erard
- CNRS, UMR7355, Experimental and Molecular Immunology and Neurogenetics, Orleans, France
| | - Marc Le Bert
- CNRS, UMR7355, Experimental and Molecular Immunology and Neurogenetics, Orleans, France
| | - Valérie Quesniaux
- CNRS, UMR7355, Experimental and Molecular Immunology and Neurogenetics, Orleans, France.,University of Orleans, Orleans, France
| | | | - Bernhard Ryffel
- CNRS, UMR7355, Experimental and Molecular Immunology and Neurogenetics, Orleans, France. .,University of Orleans, Orleans, France. .,University of Cape Town, IDM, Cape Town, Republic of South Africa.
| |
Collapse
|
46
|
Mohamadkhani A. On the potential role of intestinal microbial community in hepatocarcinogenesis in chronic hepatitis B. Cancer Med 2018; 7:3095-3100. [PMID: 29761927 PMCID: PMC6051233 DOI: 10.1002/cam4.1550] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 03/17/2018] [Accepted: 04/19/2018] [Indexed: 12/12/2022] Open
Abstract
The chronic infection of hepatitis B virus (HBV) is the most potent risk factor for the development of cirrhosis and hepatocellular carcinoma (HCC). The association of intestinal microbiota alteration with progressive liver disease has been investigated in recent studies. Overgrowth of potentially pathogenic bacteria of gram‐negative species and, in particular, a significant increase in the fecal count of Escherichia coli (E. coli) are characterized in the presence of HCC. This study was conducted to describe the characteristics of the intestinal microbiota related to the presence of HCC in HBV‐carrier patients. The available literature indicates the colonization of E. coli as principal source of portal vein lipopolysaccharide (LPS), in the gut may contribute to the carcinogenesis process by inducing chronic inflammation. This understanding could help to predict the clinical outcomes in HBV‐carrier patients and innovative strategies to reduce the virulence of liver disease from intestinal dysbiosis.
Collapse
Affiliation(s)
- Ashraf Mohamadkhani
- Liver and Pancreatobiliary Disease Research Center, Digestive Disease Research institute, Shariati Hospital, Tehran University of Medical Science, Tehran, Iran
| |
Collapse
|
47
|
Faïs T, Delmas J, Barnich N, Bonnet R, Dalmasso G. Colibactin: More Than a New Bacterial Toxin. Toxins (Basel) 2018; 10:toxins10040151. [PMID: 29642622 PMCID: PMC5923317 DOI: 10.3390/toxins10040151] [Citation(s) in RCA: 121] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 04/06/2018] [Accepted: 04/07/2018] [Indexed: 12/16/2022] Open
Abstract
Cyclomodulins are bacterial toxins that interfere with the eukaryotic cell cycle. A new cyclomodulin called colibactin, which is synthetized by the pks genomic island, was discovered in 2006. Despite many efforts, colibactin has not yet been purified, and its structure remains elusive. Interestingly, the pks island is found in members of the family Enterobacteriaceae (mainly Escherichia coli and Klebsiella pneumoniae) isolated from different origins, including from intestinal microbiota, septicaemia, newborn meningitis, and urinary tract infections. Colibactin-producing bacteria induce chromosomal instability and DNA damage in eukaryotic cells, which leads to senescence of epithelial cells and apoptosis of immune cells. The pks island is mainly observed in B2 phylogroup E. coli strains, which include extra-intestinal pathogenic E. coli strains, and pksE. coli are over-represented in biopsies isolated from colorectal cancer. In addition, pksE. coli bacteria increase the number of tumours in diverse colorectal cancer mouse models. Thus, colibactin could have a major impact on human health. In the present review, we will focus on the biological effects of colibactin, the distribution of the pks island, and summarize what is currently known about its synthesis and its structure.
Collapse
Affiliation(s)
- Tiphanie Faïs
- Université Clermont Auvergne, Inserm U1071, M2iSH, USC-INRA 2018, F-63000 Clermont-Ferrand, France.
- CHU Clermont-Ferrand, Laboratoire de Bactériologie, Centre de Biologie, F-63003 Clermont-Ferrand, France.
| | - Julien Delmas
- Université Clermont Auvergne, Inserm U1071, M2iSH, USC-INRA 2018, F-63000 Clermont-Ferrand, France.
- CHU Clermont-Ferrand, Laboratoire de Bactériologie, Centre de Biologie, F-63003 Clermont-Ferrand, France.
| | - Nicolas Barnich
- Université Clermont Auvergne, Inserm U1071, M2iSH, USC-INRA 2018, F-63000 Clermont-Ferrand, France.
| | - Richard Bonnet
- Université Clermont Auvergne, Inserm U1071, M2iSH, USC-INRA 2018, F-63000 Clermont-Ferrand, France.
- CHU Clermont-Ferrand, Laboratoire de Bactériologie, Centre de Biologie, F-63003 Clermont-Ferrand, France.
| | - Guillaume Dalmasso
- Université Clermont Auvergne, Inserm U1071, M2iSH, USC-INRA 2018, F-63000 Clermont-Ferrand, France.
| |
Collapse
|
48
|
Abstract
Colibactins are hybrid polyketide-nonribosomal peptides produced by Escherichia coli, Klebsiella pneumoniae, and other Enterobacteriaceae harboring the pks genomic island. These genotoxic metabolites are produced by pks-encoded peptide-polyketide synthases as inactive prodrugs called precolibactins, which are then converted to colibactins by deacylation for DNA-damaging effects. Colibactins are bona fide virulence factors and are suspected of promoting colorectal carcinogenesis when produced by intestinal E. coli. Natural active colibactins have not been isolated, and how they induce DNA damage in the eukaryotic host cell is poorly characterized. Here, we show that DNA strands are cross-linked covalently when exposed to enterobacteria producing colibactins. DNA cross-linking is abrogated in a clbP mutant unable to deacetylate precolibactins or by adding the colibactin self-resistance protein ClbS, confirming the involvement of the mature forms of colibactins. A similar DNA-damaging mechanism is observed in cellulo, where interstrand cross-links are detected in the genomic DNA of cultured human cells exposed to colibactin-producing bacteria. The intoxicated cells exhibit replication stress, activation of ataxia-telangiectasia and Rad3-related kinase (ATR), and recruitment of the DNA cross-link repair Fanconi anemia protein D2 (FANCD2) protein. In contrast, inhibition of ATR or knockdown of FANCD2 reduces the survival of cells exposed to colibactin-producing bacteria. These findings demonstrate that DNA interstrand cross-linking is the critical mechanism of colibactin-induced DNA damage in infected cells. Colorectal cancer is the third-most-common cause of cancer death. In addition to known risk factors such as high-fat diets and alcohol consumption, genotoxic intestinal Escherichia coli bacteria producing colibactin are proposed to play a role in colon cancer development. Here, by using transient infections with genotoxic E. coli, we showed that colibactins directly generate DNA cross-links in cellulo. Such lesions are converted into double-strand breaks during the repair response. DNA cross-links, akin to those induced by metabolites of alcohol and high-fat diets and by widely used anticancer drugs, are both severely mutagenic and profoundly cytotoxic lesions. This finding of a direct induction of DNA cross-links by a bacterium should facilitate delineating the role of E. coli in colon cancer and engineering new anticancer agents.
Collapse
|
49
|
Genome-Wide Identification by Transposon Insertion Sequencing of Escherichia coli K1 Genes Essential for In Vitro Growth, Gastrointestinal Colonizing Capacity, and Survival in Serum. J Bacteriol 2018; 200:JB.00698-17. [PMID: 29339415 PMCID: PMC5847654 DOI: 10.1128/jb.00698-17] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 01/09/2018] [Indexed: 12/18/2022] Open
Abstract
Escherichia coli K1 strains are major causative agents of invasive disease of newborn infants. The age dependency of infection can be reproduced in neonatal rats. Colonization of the small intestine following oral administration of K1 bacteria leads rapidly to invasion of the blood circulation; bacteria that avoid capture by the mesenteric lymphatic system and evade antibacterial mechanisms in the blood may disseminate to cause organ-specific infections such as meningitis. Some E. coli K1 surface constituents, in particular the polysialic acid capsule, are known to contribute to invasive potential, but a comprehensive picture of the factors that determine the fully virulent phenotype has not emerged so far. We constructed a library and constituent sublibraries of ∼775,000 Tn5 transposon mutants of E. coli K1 strain A192PP and employed transposon-directed insertion site sequencing (TraDIS) to identify genes required for fitness for infection of 2-day-old rats. Transposon insertions were lacking in 357 genes following recovery on selective agar; these genes were considered essential for growth in nutrient-replete medium. Colonization of the midsection of the small intestine was facilitated by 167 E. coli K1 gene products. Restricted bacterial translocation across epithelial barriers precluded TraDIS analysis of gut-to-blood and blood-to-brain transits; 97 genes were required for survival in human serum. This study revealed that a large number of bacterial genes, many of which were not previously associated with systemic E. coli K1 infection, are required to realize full invasive potential. IMPORTANCEEscherichia coli K1 strains cause life-threatening infections in newborn infants. They are acquired from the mother at birth and colonize the small intestine, from where they invade the blood and central nervous system. It is difficult to obtain information from acutely ill patients that sheds light on physiological and bacterial factors determining invasive disease. Key aspects of naturally occurring age-dependent human infection can be reproduced in neonatal rats. Here, we employ transposon-directed insertion site sequencing to identify genes essential for the in vitro growth of E. coli K1 and genes that contribute to the colonization of susceptible rats. The presence of bottlenecks to invasion of the blood and cerebrospinal compartments precluded insertion site sequencing analysis, but we identified genes for survival in serum.
Collapse
|
50
|
Context-Dependent Requirements for FimH and Other Canonical Virulence Factors in Gut Colonization by Extraintestinal Pathogenic Escherichia coli. Infect Immun 2018; 86:IAI.00746-17. [PMID: 29311232 PMCID: PMC5820936 DOI: 10.1128/iai.00746-17] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 12/17/2017] [Indexed: 12/19/2022] Open
Abstract
Extraintestinal pathogenic Escherichia coli (ExPEC) acts as a commensal within the mammalian gut but can induce pathology upon dissemination to other host environments such as the urinary tract and bloodstream. ExPEC genomes are likely shaped by evolutionary forces encountered within the gut, where the bacteria spend much of their time, provoking the question of how their extraintestinal virulence traits arose. The principle of coincidental evolution, in which a gene that evolved in one niche happens to be advantageous in another, has been used to argue that ExPEC virulence factors originated in response to selective pressures within the gut ecosystem. As a test of this hypothesis, the fitness of ExPEC mutants lacking canonical virulence factors was assessed within the intact murine gut in the absence of antibiotic treatment. We found that most of the tested factors, including cytotoxic necrotizing factor type 1 (CNF1), Usp, colibactin, flagella, and plasmid pUTI89, were dispensable for gut colonization. The deletion of genes encoding the adhesin PapG or the toxin HlyA had transient effects but did not interfere with longer-term persistence. In contrast, a mutant missing the type 1 pilus-associated adhesin FimH displayed somewhat reduced persistence within the gut. However, this phenotype varied dependent on the presence of specific competing strains and was partially attributable to aberrant flagellin expression in the absence of fimH These data indicate that FimH and other key ExPEC-associated factors are not strictly required for gut colonization, suggesting that the development of extraintestinal virulence traits is not driven solely by selective pressures within the gut.
Collapse
|