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Jans M, Vereecke L. Physiological drivers of pks+ E. coli in colorectal cancer. Trends Microbiol 2025:S0966-842X(25)00121-0. [PMID: 40335416 DOI: 10.1016/j.tim.2025.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2025] [Revised: 04/07/2025] [Accepted: 04/09/2025] [Indexed: 05/09/2025]
Abstract
Colorectal cancer (CRC) is a significant global health challenge, with rising incidence, particularly among individuals under 50. Increasing evidence highlights the gut microbiota as key contributors to CRC development, with certain oncogenic bacteria influencing cancer initiation, progression, and therapy response. Among these is pks+ Escherichia coli, which produces colibactin, a genotoxic compound that induces DNA damage and leaves a distinct mutational signature in healthy individuals and CRC patients. While research has focused on its genotoxic effects, this review examines the kinetics of colibactin-induced mutations and the epithelial and environmental changes that promote E. coli expansion and colibactin exposure. We also explore the broader role of pks+ E. coli in cancer initiation and progression beyond genotoxicity, and discuss potential therapeutic approaches.
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Affiliation(s)
- Maude Jans
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, B-9052 Ghent, Belgium
| | - Lars Vereecke
- VIB Center for Inflammation Research, B-9052 Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.
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2
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Vargas‐Castellanos E, Rincón‐Riveros A. Microsatellite Instability in the Tumor Microenvironment: The Role of Inflammation and the Microbiome. Cancer Med 2025; 14:e70603. [PMID: 40231893 PMCID: PMC11998172 DOI: 10.1002/cam4.70603] [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: 08/11/2024] [Revised: 11/13/2024] [Accepted: 01/03/2025] [Indexed: 04/16/2025] Open
Abstract
BACKGROUND Microsatellite instability (MSI) is a hallmark of DNA mismatch repair (MMR) deficiency that leads to genomic instability and increased cancer risk. The tumor microenvironment (TME) significantly influences MSI-driven tumorigenesis, and emerging evidence points to a critical role of the microbiome in shaping this complex interplay. METHODS This review comprehensively examines the existing literature on the intricate relationship between MSI, microbiome, and cancer development, with a particular focus on the impact of microbial dysbiosis on the TME. RESULTS MSI-high tumors exhibited increased immune cell infiltration owing to the generation of neoantigens. However, immune evasion mechanisms such as PD-1/CTLA-4 upregulation limit the efficacy of immune checkpoint inhibitors (ICIs) in a subset of patients. Pathobionts, such as Fusobacterium nucleatum and Bacteroides fragilis, contribute to MSI through the production of genotoxins, further promoting inflammation and oxidative stress within the TME. CONCLUSIONS The microbiome profoundly affects MSI-driven tumorigenesis. Modulation of the gut microbiota through interventions such as fecal microbiota transplantation, probiotics, and dietary changes holds promise for improving ICI response rates. Further research into cancer pharmacomicrobiomics, investigating the interplay between microbial metabolites and anticancer therapies, is crucial for developing personalized treatment strategies.
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Affiliation(s)
| | - Andrés Rincón‐Riveros
- Facultad de Ciencias de la SaludUniversidad Colegio Mayor de CundinamarcaBogotáColombia
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Jian C, Yinhang W, Jing Z, Zhanbo Q, Zefeng W, Shuwen H. Escherichia coli on colorectal cancer: A two-edged sword. Microb Biotechnol 2024; 17:e70029. [PMID: 39400440 PMCID: PMC11472651 DOI: 10.1111/1751-7915.70029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Accepted: 09/26/2024] [Indexed: 10/15/2024] Open
Abstract
Escherichia coli (E. coli) is a ubiquitous symbiotic bacterium in the gut, and the diversity of E. coli genes determines the diversity of its functions. In this review, the two-edged sword theory was innovatively proposed. For the question 'how can we harness the ambivalent nature of E. coli to screen and treat CRC?', in terms of CRC screening, the variations in the abundance and subtypes of E. coli across different populations present an opportunity to utilise it as a biomarker, while in terms of CRC treatment, the natural beneficial effect of E. coli on CRC may be limited, and engineered E. coli, particularly certain subtypes with probiotic potential, can indeed play a significant role in CRC treatment. It seems that the favourable role of E. coli as a genetic tool lies not in its direct impact on CRC but its potential as a research platform that can be integrated with various technologies such as nanoparticles, imaging methods, and synthetic biology modification. The relationship between gut microflora and CRC remains unclear due to the complex diversity and interaction of gut microflora. Therefore, the application of E. coli should be based on the 'One Health' view and take the interactions between E. coli and other microorganisms, host, and environmental factors, as well as its own changes into account. In this paper, the two-edged sword role of E. coli in CRC is emphasised to realise the great potential of E. coli in CRC screening and treatment.
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Affiliation(s)
- Chu Jian
- Huzhou Central HospitalAffiliated Central Hospital Huzhou UniversityHuzhouZhejiangPeople's Republic of China
- Huzhou Central HospitalFifth Affiliated Clinical Medical College of Zhejiang Chinese Medical UniversityHuzhouZhejiangPeople's Republic of China
- Key Laboratory of Multiomics Research and Clinical Transformation of Digestive Cancer of HuzhouHuzhouZhejiangPeople's Republic of China
| | - Wu Yinhang
- Huzhou Central HospitalAffiliated Central Hospital Huzhou UniversityHuzhouZhejiangPeople's Republic of China
- Huzhou Central HospitalFifth Affiliated Clinical Medical College of Zhejiang Chinese Medical UniversityHuzhouZhejiangPeople's Republic of China
- Key Laboratory of Multiomics Research and Clinical Transformation of Digestive Cancer of HuzhouHuzhouZhejiangPeople's Republic of China
| | - Zhuang Jing
- Huzhou Central HospitalAffiliated Central Hospital Huzhou UniversityHuzhouZhejiangPeople's Republic of China
- Huzhou Central HospitalFifth Affiliated Clinical Medical College of Zhejiang Chinese Medical UniversityHuzhouZhejiangPeople's Republic of China
- Key Laboratory of Multiomics Research and Clinical Transformation of Digestive Cancer of HuzhouHuzhouZhejiangPeople's Republic of China
| | - Qu Zhanbo
- Huzhou Central HospitalAffiliated Central Hospital Huzhou UniversityHuzhouZhejiangPeople's Republic of China
- Huzhou Central HospitalFifth Affiliated Clinical Medical College of Zhejiang Chinese Medical UniversityHuzhouZhejiangPeople's Republic of China
- Key Laboratory of Multiomics Research and Clinical Transformation of Digestive Cancer of HuzhouHuzhouZhejiangPeople's Republic of China
| | - Wang Zefeng
- Huzhou UniversityHuzhouZhejiangPeople's Republic of China
| | - Han Shuwen
- Huzhou Central HospitalAffiliated Central Hospital Huzhou UniversityHuzhouZhejiangPeople's Republic of China
- Huzhou Central HospitalFifth Affiliated Clinical Medical College of Zhejiang Chinese Medical UniversityHuzhouZhejiangPeople's Republic of China
- Key Laboratory of Multiomics Research and Clinical Transformation of Digestive Cancer of HuzhouHuzhouZhejiangPeople's Republic of China
- ASIR (Institute ‐ Association of intelligent systems and robotics)Rueil‐MalmaisonFrance
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Zhang Y, Lin H, Liang L, Jin S, Lv J, Zhou Y, Xu F, Liu F, Feng N. Intratumoral microbiota as a novel prognostic indicator in bladder cancer. Sci Rep 2024; 14:22198. [PMID: 39333148 PMCID: PMC11437234 DOI: 10.1038/s41598-024-72918-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Accepted: 09/11/2024] [Indexed: 09/29/2024] Open
Abstract
Microbes are important components of the tumor microenvironment and have a close relationship with tumors. However, there is still a lack of research on the intratumoral microbiota in bladder cancer and its impact on the tumor immune microenvironment. In this study, we used fluorescence in situ hybridization (FISH) and observed a substantial presence of microbiota in bladder cancer tissues, with greater abundance compared to that in normal bladder tissues. Based on the BIC database, we found that the microbiome of bladder cancer is highly diverse and its structure is significantly different from that of other tumors. To investigate the relationships among the intratumoral microbiota, tumor immunity, and prognosis in bladder cancer patients, we analyzed bladder cancer-specific differentially expressed immune- and antimicrobial-related genes from the ImmPort, TISIDB, and TCGA databases. We identified 11 hub genes and constructed a prognostic risk model. Further analysis revealed differences at the family and genus levels between distinct groups. Using LEfSe analysis, we identified six hub biomarkers and developed a novel microbial-based scoring system. The scoring system allows subgrouping of bladder cancer patients, with significant differences in prognosis, immune cell infiltration, tumor mutation burden, and immune checkpoints among different groups. Further FISH and immunofluorescence co-staining experiments initially verified that the specific distribution of microorganisms and M2 macrophages in bladder cancer may be closely related to the poor prognosis of patients. In conclusion, this study revealed the characteristics of the intratumoral microbiota in bladder cancer and identified potential prognostic targets for clinical application.
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Affiliation(s)
- Yuwei Zhang
- Medical School of Nantong University, 9 Qiangyuan Road, Nantong, 226019, China
- Department of Urology, Jiangnan University Medical Center, No. 1800, Lihu Avenue, Wuxi, 214122, China
| | - Hao Lin
- Department of Urology, Jiangnan University Medical Center, No. 1800, Lihu Avenue, Wuxi, 214122, China
- Department of Urology, Wuxi No.2 Hospital, Nanjing Medical University, Wuxi, China
| | - Linghui Liang
- Department of Urology, Jiangnan University Medical Center, No. 1800, Lihu Avenue, Wuxi, 214122, China
- Department of Urology, Wuxi No.2 Hospital, Nanjing Medical University, Wuxi, China
| | - Shengkai Jin
- Department of Urology, Jiangnan University Medical Center, No. 1800, Lihu Avenue, Wuxi, 214122, China
| | - Jing Lv
- Department of Urology, Jiangnan University Medical Center, No. 1800, Lihu Avenue, Wuxi, 214122, China
| | - Yuhua Zhou
- Department of Urology, Jiangnan University Medical Center, No. 1800, Lihu Avenue, Wuxi, 214122, China
| | - Feng Xu
- Department of Urology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, 22 Hankou Road, Nanjing, 210093, China.
| | - Fengping Liu
- Department of Urology, Jiangnan University Medical Center, No. 1800, Lihu Avenue, Wuxi, 214122, China.
| | - Ninghan Feng
- Medical School of Nantong University, 9 Qiangyuan Road, Nantong, 226019, China.
- Department of Urology, Jiangnan University Medical Center, No. 1800, Lihu Avenue, Wuxi, 214122, China.
- Department of Urology, Wuxi No.2 Hospital, Nanjing Medical University, Wuxi, China.
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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. [PMID: 38899326 PMCID: PMC11185296 DOI: 10.3748/wjg.v30.i21.2817] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [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.
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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
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Akinduti PA, Izevbigie OO, Akinduti OA, Enwose EO, Amoo EO. Fecal Carriage of Colibactin-Encoding Escherichia coli Associated With Colorectal Cancer Among a Student Populace. Open Forum Infect Dis 2024; 11:ofae106. [PMID: 38560611 PMCID: PMC10981395 DOI: 10.1093/ofid/ofae106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 02/22/2024] [Indexed: 04/04/2024] Open
Abstract
Fecal carriage of the colibactin (clb) gene in Escherichia coli is described as a source that could promote carcinogenesis, progressing to colorectal cancer. The present study investigated the demographic, dietary, and antibiotic consumption variables as correlates for fecal carriage of clb+/E coli among the student populace. In a randomized cross-sectional survey, E coli (N = 136) from the fecal samples of eligible students were characterized and evaluated for antibiotic resistance, β-lactamase (blm), biofilm, virulence factor production, and strain tryptophan reverse mutagenic activity. The encoded clb+/E coli were analyzed for correlates with principal component analysis. Of all the E coli strains, a low rate of 2 clb+/E coli (1.5%) and higher rates of biofilm (13.2%) and blm producers (11.8%) were recorded among the mutant strains as compared with the nonmutant types. All the clb+/E coli showed complete resistance to amoxicillin, Augmentin (amoxicillin and clavulanate), gentamicin, and trimethoprim/sulfamethoxazole. The fecal clb-encoded E coli (1.5%) were not associated with demographic status, fiber-based food (odds ratio [OR], 1.03; 95% CI, 56.74-138.7; P = .213), alcohol (OR, 1.27; 95% CI, 61.74-147.1; P = .221), antibiotic consumptions (OR, 1.11; 95% CI, 61.29-145.3; P = .222), and handwashing (OR, 1.17; 95% CI, 60.19-145.5; P = .216). The hierarchical cluster of blm+/E coli revealed high-level resistance with a multiantibiotic resistance index ≥0.2 (P < .05). Only 12% of all strains were tryptophan mutant/blm+, and 1.5% of clb+/ECblm+ were observed in fecal samples with a 452-base pair size. Trimethoprim/sulfamethoxazole and biofilm production positively regressed with clb expression (P > .05). Principal component analysis score plot indicated an association of clb+/ECblm+ with dietary pattern, alcohol, blm, and hemolysin production. The combined activity of blm and biofilm production in the gut microbiota could promote clb+/E coli colonization, facilitating genotoxin production and possible colorectal cancer induction.
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Affiliation(s)
- Paul A Akinduti
- Microbiology Unit, Department of Biological Sciences, Covenant University, Ota, Nigeria
| | - Ovbiosa O Izevbigie
- Microbiology Unit, Department of Biological Sciences, Covenant University, Ota, Nigeria
| | | | - Ezekiel O Enwose
- Department of Medical Laboratory Sciences, Neuropsychiatric Hospital, Aro Abeokuta, Nigeria
| | - Emmanuel O Amoo
- Demography and Social Statistics, Covenant University, Ota, Nigeria
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Wu W, Ouyang Y, Zheng P, Xu X, He C, Xie C, Hong J, Lu N, Zhu Y, Li N. Research trends on the relationship between gut microbiota and colorectal cancer: A bibliometric analysis. Front Cell Infect Microbiol 2023; 12:1027448. [PMID: 36699721 PMCID: PMC9868464 DOI: 10.3389/fcimb.2022.1027448] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 12/19/2022] [Indexed: 01/10/2023] Open
Abstract
Background Colorectal cancer (CRC)is the third most common cancer in the world and the second leading cause of cancer-related deaths, and over the past two decades, many of these researchers have provided a substantial amount of important information on the role of gut microbes in the development and progression of CRC. A causal relationship between the presence of specific microorganisms and CRC development has also been validated. Although a large number of papers related to this area have been published, no bibliometric study has been conducted to review the current state of research in this area and to highlight the research trends and hotspots in this area. This study aims to analyze the current status and future research trends of gut microbiota and CRC through bibliometric analysis. Methods Publications from 2001 to 2022 were retrieved from the Web of Science Core Collection database and screened according to inclusion criteria. VOSviewer and CiteSpace software were used to visualize the research trends in this field, including the analysis of title, country, institution, author, number of publications, year of publication, number of citations, journal, and H-index. Results A total of 863 studies were eventually identified, and the articles retrieved were cited an average of 44.85 times each. The number of publications on this topic has been increased steadily since 2011. China and the USA have made the largest contribution in the field. FRONTIERS IN MICROBIOLOGY is the top productive journal with 26 papers, and Gut journal has the highest average citation (167.23). Shanghai Jiao Tong University is the most contributive institution. Professor Yu J, Sung, Joseph J. Y and Fang JY are the most productive authors in this field. Keyword co-occurrence analysis showed that the terms of "Gut Microbiota", "Colorectal Cancer", "Inflammation", "Probiotic" and "Fusobacterium Nucleatum" were the most frequent, which revealed the research hotpots and trends in this field. Conclusions There has been a growing number of publications over the past two decades according to the global trends. China and the USA still maintained the leading position in this field. However, collaboration between institutions needs to be strengthened. It's commended to pay attention to the latest hotspots, such as "F. nucleatum" and "probiotics". This bibliometric analysis evaluates the scope and trends of gut microbiota and CRC, providing a useful perspective on current research and future directions for studying the link between the gut microbiota and CRC.
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Affiliation(s)
- Weigen Wu
- Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yaobin Ouyang
- Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Pan Zheng
- Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xinbo Xu
- Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Cong He
- Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Chuan Xie
- Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Junbo Hong
- Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Nonghua Lu
- Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yin Zhu
- Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Nianshuang Li
- Digestive Disease Hospital, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
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8
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Chat H, Dalmasso G, Godfraind C, Bonnin V, Beyrouthy R, Bonnet M, Barnich N, Mettouchi A, Lemichez E, Bonnet R, Delmas J. Cytotoxic necrotizing factor 1 hinders colon tumorigenesis induced by colibactin-producing Escherichia coli in ApcMin/+ mice. Gut Microbes 2023; 15:2229569. [PMID: 37417545 PMCID: PMC10332217 DOI: 10.1080/19490976.2023.2229569] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 06/21/2023] [Indexed: 07/08/2023] Open
Abstract
Colorectal cancer (CRC) patients are frequently colonized by colibactin-producing Escherichia coli (CoPEC) (>40%), which enhances tumorigenesis in mouse models of CRC. We observed that 50% of CoPEC also contains the cnf1 gene, which encodes cytotoxic necrotizing factor-1 (CNF1), an enhancer of the eukaryotic cell cycle. The impact of its co-occurrence with colibactin (Clb) has not yet been investigated. We evaluated the impact of CNF1 on colorectal tumorigenesis using human colonic epithelial HT-29 cells and CRC-susceptible ApcMin/+ mice inoculated with the CoPEC 21F8 clinical strain (Clb+Cnf+) or 21F8 isogenic mutants (Clb+Cnf-, Clb-Cnf+ and Clb-Cnf-). Infection with the Clb+Cnf- strain induced higher levels of inflammatory cytokines and senescence markers both in vitro and in vivo compared to those induced by infection with the Clb+Cnf+ strain. In contrast, the Clb+Cnf- and Clb+Cnf+ strains generated similar levels of DNA damage in HT-29 cells and in colonic murine tissues. Furthermore, the ApcMin/+ mice inoculated with the Clb+Cnf- strain developed significantly more tumors than the mice inoculated with the Clb+Cnf+ strain or the isogenic mutants, and the composition of their microbiota was changed. Finally, rectal administration of the CNF1 protein in ApcMin/+ mice inoculated with the Clb+Cnf- strain significantly decreased tumorigenesis and inflammation. Overall, this study provides evidence that CNF1 decreases the carcinogenic effects of CoPEC in ApcMin/+ mice by decreasing CoPEC-induced cellular senescence and inflammation.
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Affiliation(s)
- Héloïse Chat
- Centre de Recherche en Nutrition Humaine Auvergne, University Clermont Auvergne, Inserm U1071, INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l’Hôte (M2iSH), Clermont-Ferrand, France
| | - Guillaume Dalmasso
- Centre de Recherche en Nutrition Humaine Auvergne, University Clermont Auvergne, Inserm U1071, INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l’Hôte (M2iSH), Clermont-Ferrand, France
| | - Catherine Godfraind
- Centre de Recherche en Nutrition Humaine Auvergne, University Clermont Auvergne, Inserm U1071, INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l’Hôte (M2iSH), Clermont-Ferrand, France
- Neuropathology Unit, University Hospital of Clermont-Ferrand, Clermont-Ferrand, France
| | - Virginie Bonnin
- Centre de Recherche en Nutrition Humaine Auvergne, University Clermont Auvergne, Inserm U1071, INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l’Hôte (M2iSH), Clermont-Ferrand, France
| | - Racha Beyrouthy
- Centre de Recherche en Nutrition Humaine Auvergne, University Clermont Auvergne, Inserm U1071, INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l’Hôte (M2iSH), Clermont-Ferrand, France
| | - Mathilde Bonnet
- Centre de Recherche en Nutrition Humaine Auvergne, University Clermont Auvergne, Inserm U1071, INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l’Hôte (M2iSH), Clermont-Ferrand, France
- Institut Universitaire de Technologie, University Clermont Auvergne, Clermont-Ferrand, France
| | - Nicolas Barnich
- Centre de Recherche en Nutrition Humaine Auvergne, University Clermont Auvergne, Inserm U1071, INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l’Hôte (M2iSH), Clermont-Ferrand, France
- Institut Universitaire de Technologie, University Clermont Auvergne, Clermont-Ferrand, France
| | - Amel Mettouchi
- Institut Pasteur, University of Paris, CNRS UMR2001, Paris, France
| | | | - Richard Bonnet
- Centre de Recherche en Nutrition Humaine Auvergne, University Clermont Auvergne, Inserm U1071, INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l’Hôte (M2iSH), Clermont-Ferrand, France
- Department of Bacteriology, University Hospital of Clermont-Ferrand, Clermont-Ferrand, France
| | - Julien Delmas
- Centre de Recherche en Nutrition Humaine Auvergne, University Clermont Auvergne, Inserm U1071, INRAE USC 1382, Microbes, Intestin, Inflammation et Susceptibilité de l’Hôte (M2iSH), Clermont-Ferrand, France
- Department of Bacteriology, University Hospital of Clermont-Ferrand, Clermont-Ferrand, France
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9
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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: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 10/24/2022] [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.
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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
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10
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Tariq H, Noreen Z, Ahmad A, Khan L, Ali M, Malik M, Javed A, Rasheed F, Fatima A, Kocagoz T, Sezerman U, Bokhari H. Colibactin possessing E. coli isolates in association with colorectal cancer and their genetic diversity among Pakistani population. PLoS One 2022; 17:e0262662. [PMID: 36367873 PMCID: PMC9651576 DOI: 10.1371/journal.pone.0262662] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 01/04/2022] [Indexed: 11/13/2022] Open
Abstract
Colorectal cancer (CRC) is the third most prevalent cause of tumorigenesis and several pathogenic bacteria have been correlated with aggressive cases of cancer i.e., genotoxin (colibactin) producing Escherichia coli (E. coli). This study was designed to investigate the genetic diversity of clb+clb+E. coli strains and their association with CRC. Pathogenic E. coli isolates from colorectal biopsies were characterized based on phylotypes, antibiotic resistance pattern, and (Enterobacterial Repetitive Intergenic Consensus Sequence-based Polymerase Chain Reaction) ERIC-PCR. Furthermore, isolates were screened for the presence of the Pks (polyketide synthase) Island specifically targeting colibactin genes A and Q. The selective clb+clb+ isolates were subjected to cytotoxicity assay using Human embryonic kidney (HEK) cell lines. We revealed that 43.47% of the cancer-associated E. coli isolates were from phylogroup B2 comparatively more pathogenic than rest while in the case of healthy controls no isolate was found from B2. Moreover, 90% were found positive for colibactin and pks (polyketide synthase) island, while none of the healthy controls were found positive for colibactin genes. All healthy and cancer-associated isolates were tested against 15 antibiotic agents, we observed that cancer-associated isolates showed a wide range of resistance from 96% against Nalidixic acid to 48% against Doxycycline. Moreover, E. coli isolates were further genotyped using ERIC-PCR, and selected clb+clb+E. coli isolates were subjected to cytotoxicity assay. We recorded the significant cytotoxic activity of clb+clb+ E. coli phylogroup B2 isolates that might have contributed towards the progression of CRC or dysbiosis of healthy gut microbiota protecting against CRC pathogenesis. Our results revealed a significant p<0.023 association of dietary habits and hygiene p<0.001with CRC. This is the first study to report the prevalence of E. coli phylogroups and the role of colibactin most virulent phylogroup B2 among Pakistani individuals from low socioeconomic setup.
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Affiliation(s)
- Habiba Tariq
- Department of Biosciences, COMSATS University, Islamabad, Pakistan
| | - Zobia Noreen
- Department of Biosciences, COMSATS University, Islamabad, Pakistan
| | - Aftab Ahmad
- Department of Biosciences, COMSATS University, Islamabad, Pakistan
- Department of Microbiology, Kohsar University Murree, Punjab, Pakistan
| | - Laraib Khan
- Department of Biosciences, COMSATS University, Islamabad, Pakistan
| | - Mashhood Ali
- Department of Gastroenterology, Pakistan Institute of Medical Sciences (PIMS), Islamabad, Pakistan
| | - Muhammad Malik
- Department of Biosciences, COMSATS University, Islamabad, Pakistan
| | - Aneela Javed
- Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Science and Technology (NUST), Islamabad, Pakistan
| | - Faisal Rasheed
- Department of Microbiology, Quaid-e-Azam University, Islamabad, Pakistan
| | - Alina Fatima
- Department of Biosciences, COMSATS University, Islamabad, Pakistan
| | - Tanil Kocagoz
- Department of Medical Microbiology, Acibadem University, Istanbul, Turkey
| | - Ugur Sezerman
- Department of Biostatics and Medical Informatics, Acibadem University, Istanbul Turkey
| | - Habib Bokhari
- Department of Biosciences, COMSATS University, Islamabad, Pakistan
- Department of Microbiology, Kohsar University Murree, Punjab, Pakistan
- * E-mail: ,
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11
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Kashyap S, Pal S, Chandan G, Saini V, Chakrabarti S, Saini NK, Mittal A, Thakur VK, Saini AK, Saini RV. Understanding the cross-talk between human microbiota and gastrointestinal cancer for developing potential diagnostic and prognostic biomarkers. Semin Cancer Biol 2022; 86:643-651. [PMID: 33971261 DOI: 10.1016/j.semcancer.2021.04.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 04/19/2021] [Accepted: 04/29/2021] [Indexed: 02/07/2023]
Abstract
The interaction between gut microbes and gastrointestinal (GI) tract carcinogenesis has always attracted researchers' attention to identify therapeutic targets or potential prognostic biomarkers. Various studies have suggested that the microbiota do show inflammation and immune dysregulation, which led to carcinogenesis in GI tract. In this review, we have focused on the role of microbes present in the gut, intestine, or faeces in GI tract cancers, including esophageal cancer, gastric cancer, and colorectal cancer. Herein, we have discussed the importance of the microbes and their metabolites, which could serve as diagnostic biomarkers for cancer detection, especially in the early stage, and prognostic markers. To maximize the effect of the treatment strategies, an accurate evaluation of the prognosis is imperative for clinicians. There is a vast difference in the microbiota profiles within a population and across the populations depending upon age, diet, lifestyle, genetic makeup, use of antibiotics, and environmental factors. Therefore, the diagnostic efficiency of the microbial markers needs to be further validated. A deeper understanding of the GI cancer and the host microbiota is needed to acquire pivotal information about disease status.
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Affiliation(s)
- Sheetal Kashyap
- Department of Biotechnology, MMEC, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India
| | - Soumya Pal
- Department of Biotechnology, MMEC, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India
| | - Gourav Chandan
- Central Research Cell, MM Institute of Medical Sciences & Research, Maharishi Markandeshwar (Deemed to be University), Mullana, 133207, Haryana, India
| | - Vipin Saini
- Maharishi Markandeshwar University, Solan, 173229, Himachal Pradesh, India
| | - Sasanka Chakrabarti
- Central Research Cell, MM Institute of Medical Sciences & Research, Maharishi Markandeshwar (Deemed to be University), Mullana, 133207, Haryana, India
| | - Neeraj K Saini
- Department of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Amit Mittal
- Central Research Cell, MM Institute of Medical Sciences & Research, Maharishi Markandeshwar (Deemed to be University), Mullana, 133207, Haryana, India
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Center, Scotland's Rural College (SRUC), Kings Buildings, Edinburgh, EH9 3JG, UK
| | - Adesh K Saini
- Department of Biotechnology, MMEC, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India.
| | - Reena V Saini
- Department of Biotechnology, MMEC, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India.
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12
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Markelova NN, Semenova EF, Sineva ON, Sadykova VS. The Role of Cyclomodulins and Some Microbial Metabolites in Bacterial Microecology and Macroorganism Carcinogenesis. Int J Mol Sci 2022; 23:ijms231911706. [PMID: 36233008 PMCID: PMC9570213 DOI: 10.3390/ijms231911706] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/24/2022] [Accepted: 09/26/2022] [Indexed: 11/16/2022] Open
Abstract
A number of bacteria that colonize the human body produce toxins and effectors that cause changes in the eukaryotic cell cycle—cyclomodulins and low-molecular-weight compounds such as butyrate, lactic acid, and secondary bile acids. Cyclomodulins and metabolites are necessary for bacteria as adaptation factors—which are influenced by direct selection—to the ecological niches of the host. In the process of establishing two-way communication with the macroorganism, these compounds cause limited damage to the host, despite their ability to disrupt key processes in eukaryotic cells, which can lead to pathological changes. Possible negative consequences of cyclomodulin and metabolite actions include their potential role in carcinogenesis, in particular, with the ability to cause DNA damage, increase genome instability, and interfere with cancer-associated regulatory pathways. In this review, we aim to examine cyclomodulins and bacterial metabolites as important factors in bacterial survival and interaction with the host organism to show their heterogeneous effect on oncogenesis depending on the surrounding microenvironment, pathological conditions, and host genetic background.
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Affiliation(s)
- Natalia N. Markelova
- Gause Institute of New Antibiotics, ul. Bolshaya Pirogovskaya, 11, 119021 Moscow, Russia
- Correspondence: (N.N.M.); (V.S.S.)
| | - Elena F. Semenova
- Institute of Biochemical Technology, Ecology and Pharmacy, V.I. Vernadsky Crimean Federal University, 295007 Simferopol, Russia
| | - Olga N. Sineva
- Gause Institute of New Antibiotics, ul. Bolshaya Pirogovskaya, 11, 119021 Moscow, Russia
| | - Vera S. Sadykova
- Gause Institute of New Antibiotics, ul. Bolshaya Pirogovskaya, 11, 119021 Moscow, Russia
- Correspondence: (N.N.M.); (V.S.S.)
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13
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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: 18] [Impact Index Per Article: 6.0] [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.
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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
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14
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Gebrayel P, Nicco C, Al Khodor S, Bilinski J, Caselli E, Comelli EM, Egert M, Giaroni C, Karpinski TM, Loniewski I, Mulak A, Reygner J, Samczuk P, Serino M, Sikora M, Terranegra A, Ufnal M, Villeger R, Pichon C, Konturek P, Edeas M. Microbiota medicine: towards clinical revolution. J Transl Med 2022; 20:111. [PMID: 35255932 PMCID: PMC8900094 DOI: 10.1186/s12967-022-03296-9] [Citation(s) in RCA: 129] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 02/03/2022] [Indexed: 02/07/2023] Open
Abstract
The human gastrointestinal tract is inhabited by the largest microbial community within the human body consisting of trillions of microbes called gut microbiota. The normal flora is the site of many physiological functions such as enhancing the host immunity, participating in the nutrient absorption and protecting the body against pathogenic microorganisms. Numerous investigations showed a bidirectional interplay between gut microbiota and many organs within the human body such as the intestines, the lungs, the brain, and the skin. Large body of evidence demonstrated, more than a decade ago, that the gut microbial alteration is a key factor in the pathogenesis of many local and systemic disorders. In this regard, a deep understanding of the mechanisms involved in the gut microbial symbiosis/dysbiosis is crucial for the clinical and health field. We review the most recent studies on the involvement of gut microbiota in the pathogenesis of many diseases. We also elaborate the different strategies used to manipulate the gut microbiota in the prevention and treatment of disorders. The future of medicine is strongly related to the quality of our microbiota. Targeting microbiota dysbiosis will be a huge challenge.
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Affiliation(s)
| | - Carole Nicco
- Department Endocrinology, Metabolism and Diabetes, Faculté de Médecine Cochin-Port Royal, Université de Paris, INSERM U1016, Institut Cochin, 24 Rue du Faubourg St Jacques, 75014, Paris, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Souhaila Al Khodor
- Maternal and Child Health Department, Research Branch, Sidra Medicine, Doha, Qatar
| | | | | | | | | | - Cristina Giaroni
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | | | | | | | | | - Paulina Samczuk
- Clinical Research Centre, Medical University of Bialystok, Bialystok, Poland
| | - Matteo Serino
- IRSD, Université de Toulouse, INSERM, INRAE, ENVT, UPS, Toulouse, France
| | - Mariusz Sikora
- National Institute of Geriatrics, Rheumatology and Rehabilitation, Warsaw, Poland
| | - Annalisa Terranegra
- Maternal and Child Health Department, Research Branch, Sidra Medicine, Doha, Qatar
| | | | | | - Chantal Pichon
- Center for Molecular Biophysics CNRS UPR 4301, University of Orléans, Orléans, France
| | - Peter Konturek
- Teaching Hospital of the University of Jena, Jena, Germany
| | - Marvin Edeas
- Department Endocrinology, Metabolism and Diabetes, Faculté de Médecine Cochin-Port Royal, Université de Paris, INSERM U1016, Institut Cochin, 24 Rue du Faubourg St Jacques, 75014, Paris, France.
- Laboratory of Excellence GR-Ex, Paris, France.
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15
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Haghighi L, Razmjou E, Rafiei-Sefiddashti R, Meamar AR, Akhlaghi L. Entamoeba histolytica and Probable Effect on Production Microsatellite Instability in Colorectal Cancer. Curr Microbiol 2022; 79:111. [PMID: 35175421 DOI: 10.1007/s00284-022-02782-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 01/23/2022] [Indexed: 11/28/2022]
Abstract
The mortality rate of Entamoeba histolytica is still high and approximately 100,000 per year. Environmental factors and different pathogens can cause microsatellite instability (MSI) positive, which may be one reason for colorectal cancer. MSI status can play an essential role in treatment. Moreover, E. histolytica might be one of the pathogens which raise the incidence of colorectal cancer. Therefore, the probable relationship of E. histolytica with MSI production was evaluated. Four hundred samples of colorectal biopsies based on pathological reports were divided into four groups: colitis, polyps, hyperplasia or dysplasia, and adenocarcinoma. The prevalence of E. histolytica was examined with PCR and immunohistochemical staining (IHC) for the light chain lectin HK-9. The adenocarcinoma formalin-fixed paraffin-embedded colorectal tumours sections were tested for MSI genes. We detected E. histolytica in 6% and 4% of colitis samples by PCR and IHC technique, respectively. However, it did not identify in polyp and hyperplasia samples. The MSI test was examined in the colorectal cancer group, which became positive in 19%. Entamoeba histolytica was detected in 26.3% (5/19) of MSI-positive and 2.5% (2/81) of MSI-negative cases by IHC technique however was not identified by PCR assay in this group. It is concluded PCR and IHC assay is recommended as complementary tests in colitis biopsies. Simultaneous PCR and IHC negative results could confirm the non-existence of the parasite with more confidence. Consequently, E. histolytica might be one of the biotic factors which raise the incidence of colorectal cancer because of the coincidence of the IHC positive results in MSI-positive adenocarcinoma.
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Affiliation(s)
- Leila Haghighi
- Department of Parasitology and Mycology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Elham Razmjou
- Department of Parasitology and Mycology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Raheleh Rafiei-Sefiddashti
- Department of Parasitology and Mycology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Ahmad Reza Meamar
- Department of Parasitology and Mycology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Lame Akhlaghi
- Department of Parasitology and Mycology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
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16
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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: 0.5] [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).
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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
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17
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Ma J, Huang L, Hu D, Zeng S, Han Y, Shen H. The role of the tumor microbe microenvironment in the tumor immune microenvironment: bystander, activator, or inhibitor? J Exp Clin Cancer Res 2021; 40:327. [PMID: 34656142 PMCID: PMC8520212 DOI: 10.1186/s13046-021-02128-w] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 10/04/2021] [Indexed: 02/08/2023] Open
Abstract
The efficacy of cancer immunotherapy largely depends on the tumor microenvironment, especially the tumor immune microenvironment. Emerging studies have claimed that microbes reside within tumor cells and immune cells, suggesting that these microbes can impact the state of the tumor immune microenvironment. For the first time, this review delineates the landscape of intra-tumoral microbes and their products, herein defined as the tumor microbe microenvironment. The role of the tumor microbe microenvironment in the tumor immune microenvironment is multifaceted: either as an immune activator, inhibitor, or bystander. The underlying mechanisms include: (I) the presentation of microbial antigens by cancer cells and immune cells, (II) microbial antigens mimicry shared with tumor antigens, (III) microbe-induced immunogenic cell death, (IV) microbial adjuvanticity mediated by pattern recognition receptors, (V) microbe-derived metabolites, and (VI) microbial stimulation of inhibitory checkpoints. The review further suggests the use of potential modulation strategies of the tumor microbe microenvironment to enhance the efficacy and reduce the adverse effects of checkpoint inhibitors. Lastly, the review highlights some critical questions awaiting to be answered in this field and provides possible solutions. Overall, the tumor microbe microenvironment modulates the tumor immune microenvironment, making it a potential target for improving immunotherapy. It is a novel field facing major challenges and deserves further exploration.
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Affiliation(s)
- Jiayao Ma
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Key Laboratory for Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Lingjuan Huang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Die Hu
- Xiangya Medical College, Central South University, Changsha, 410013, Hunan, China
| | - Shan Zeng
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
- Key Laboratory for Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P.R. China.
| | - Ying Han
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
- Key Laboratory for Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
| | - Hong Shen
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
- Key Laboratory for Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P.R. China.
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18
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Liu CJ, Chen SQ, Zhang SY, Wang JL, Tang XD, Yang KX, Li XR. The comparison of microbial communities in thyroid tissues from thyroid carcinoma patients. J Microbiol 2021; 59:988-1001. [PMID: 34613604 DOI: 10.1007/s12275-021-1271-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 08/17/2021] [Accepted: 08/20/2021] [Indexed: 02/08/2023]
Abstract
Thyroid carcinoma is a common endocrine organ cancer associated with abnormal hormone secretion, leading to the disorder of metabolism. The intestinal microbiota is vital to maintain digestive and immunologic homeostasis. The relevant information of the microbial community in the gut and thyroid, including composition, structure, and relationship, is unclear in thyroid carcinoma patients. A total of 93 samples from 25 patients were included in this study. The results showed that microbial communities existed in thyroid tissue; gut and thyroid had high abundance of facultative anaerobes from the Proteobacteria phyla. The microbial metabolism from the thyroid and gut may be affected by the thyroid carcinoma cells. The cooccurrence network showed that the margins of different thyroid tissues were unique areas with more competition; the stabilization of microcommunities from tissue and stool may be maintained by several clusters of species that may execute different vital metabolism processes dominantly that are attributed to the microenvironment of cancer.
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Affiliation(s)
- Chen-Jian Liu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, 650500, P. R. China
| | - Si-Qian Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, 650500, P. R. China
| | - Si-Yao Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, 650500, P. R. China
| | - Jia-Lun Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, 650500, P. R. China
| | - Xiao-Dan Tang
- Gastroenterology Department, the First People's Hospital of Yunnan Province, Kunming, Yunnan, 650032, P. R. China.,Gastroenterology Department, the Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, 650032, P. R. China
| | - Kun-Xian Yang
- Oncology Department, the First People's Hospital of Yunnan Province, Kunming, Yunnan, 650032, P. R. China. .,Oncology Department, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, 650032, P. R. China.
| | - Xiao-Ran Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, 650500, P. R. China.
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19
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Veziant J, Villéger R, Barnich N, Bonnet M. 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; 13:2215. [PMID: 34063108 PMCID: PMC8124679 DOI: 10.3390/cancers13092215] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [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
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.
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Affiliation(s)
- Julie Veziant
- Microbes Intestin Inflammation et Susceptibilité de l’Hôte (M2iSH) UMR 1071 Inserm/Université Clermont Auvergne, USC-INRAE 2018, CRNH Auvergne, 63000 Clermont-Ferrand, France; (J.V.); (R.V.); (N.B.)
- Department of Digestive, Hepatobiliary and Endocrine Surgery Paris Descartes University Cochin Hospital, 75000 Paris, France
| | - Romain Villéger
- Microbes Intestin Inflammation et Susceptibilité de l’Hôte (M2iSH) UMR 1071 Inserm/Université Clermont Auvergne, USC-INRAE 2018, CRNH Auvergne, 63000 Clermont-Ferrand, France; (J.V.); (R.V.); (N.B.)
- Laboratoire Ecologie & Biologie des Interactions, UMR CNRS 7267 Université de Poitiers, 86000 Poitiers, France
| | - Nicolas Barnich
- Microbes Intestin Inflammation et Susceptibilité de l’Hôte (M2iSH) UMR 1071 Inserm/Université Clermont Auvergne, USC-INRAE 2018, CRNH Auvergne, 63000 Clermont-Ferrand, France; (J.V.); (R.V.); (N.B.)
| | - Mathilde Bonnet
- Microbes Intestin Inflammation et Susceptibilité de l’Hôte (M2iSH) UMR 1071 Inserm/Université Clermont Auvergne, USC-INRAE 2018, CRNH Auvergne, 63000 Clermont-Ferrand, France; (J.V.); (R.V.); (N.B.)
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20
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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: 37] [Impact Index Per Article: 9.3] [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.
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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
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21
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Butt J, Jenab M, Werner J, Fedirko V, Weiderpass E, Dahm CC, Tjønneland A, Olsen A, Boutron-Ruault MC, Rothwell JA, Severi G, Kaaks R, Turzanski-Fortner R, Aleksandrova K, Schulze M, Palli D, Pala V, Panico S, Tumino R, Sacerdote C, Bueno-de-Mesquita B, Van Gils CH, Gram IT, Lukic M, Sala N, Sánchez Pérez MJ, Ardanaz E, Chirlaque MD, Palmquist R, Löwenmark T, Travis RC, Heath A, Cross AJ, Freisling H, Zouiouich S, Aglago E, Waterboer T, Hughes DJ. Association of Pre-diagnostic Antibody Responses to Escherichia coli and Bacteroides fragilis Toxin Proteins with Colorectal Cancer in a European Cohort. Gut Microbes 2021; 13:1-14. [PMID: 33874856 PMCID: PMC8078709 DOI: 10.1080/19490976.2021.1903825] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 02/25/2021] [Accepted: 03/02/2021] [Indexed: 02/07/2023] Open
Abstract
Experimental evidence has implicated genotoxic Escherichia coli (E. coli) and enterotoxigenic Bacteroides fragilis (ETBF) in the development of colorectal cancer (CRC). However, evidence from epidemiological studies is sparse. We therefore assessed the association of serological markers of E. coli and ETBF exposure with odds of developing CRC in the European Prospective Investigation into Nutrition and Cancer (EPIC) study.Serum samples of incident CRC cases and matched controls (n = 442 pairs) were analyzed for immunoglobulin (Ig) A and G antibody responses to seven E. coli proteins and two isoforms of the ETBF toxin via multiplex serology. Multivariable-adjusted conditional logistic regression analyses were used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for the association of sero-positivity to E. coli and ETBF with CRC.The IgA-positivity of any of the tested E. coli antigens was associated with higher odds of developing CRC (OR: 1.42; 95% CI: 1.05-1.91). Dual-positivity for both IgA and IgG to E. coli and ETBF was associated with >1.7-fold higher odds of developing CRC, with a significant association only for IgG (OR: 1.75; 95% CI: 1.04, 2.94). This association was more pronounced when restricted to the proximal colon cancers (OR: 2.62; 95% CI: 1.09, 6.29) compared to those of the distal colon (OR: 1.24; 95% CI: 0.51, 3.00) (pheterogeneity = 0.095). Sero-positivity to E. coli and ETBF was associated with CRC development, suggesting that co-infection of these bacterial species may contribute to colorectal carcinogenesis. These findings warrant further exploration in larger prospective studies and within different population groups.
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Affiliation(s)
- Julia Butt
- Infections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Mazda Jenab
- International Agency for Research on Cancer (IARC-WHO), Lyon, France
| | - Jill Werner
- Infections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Veronika Fedirko
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | | | - Christina C. Dahm
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Anne Tjønneland
- Exposome and Heredity Team, CESP (Centre de Recherche en Epidemiologie et Santé des Populations), Diet, Genes and Environment, Nutrition and Biomarkers (NAB), Danish Cancer Society Research Center, Copenhagen, Denmark
- Department of Public Health, University of Copenhagen, Denmark
| | - Anja Olsen
- Exposome and Heredity Team, CESP (Centre de Recherche en Epidemiologie et Santé des Populations), Diet, Genes and Environment, Nutrition and Biomarkers (NAB), Danish Cancer Society Research Center, Copenhagen, Denmark
- Department of Public Health, University of Aarhus, Denmark
| | | | - Joseph A. Rothwell
- Cesp (Umr1018), Médecine Université Paris-Saclay, Inserm, Gustave Roussy, Villejuif, France
| | - Gianluca Severi
- Cesp (Umr1018), Médecine Université Paris-Saclay, Inserm, Gustave Roussy, Villejuif, France
- Department of Statistics, Computer Science and Applications (DISIA), University of Florence, Italy
| | - Rudolf Kaaks
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | | | - Krasimira Aleksandrova
- Department of Nutrition and Gerontology, German Institute of Human Nutrition Potsdam-Rehbruecke, Germany
| | - Matthias Schulze
- Department of Molecular Epidemiology, German Institute of Human Nutrition, Potsdam-Rehbruecke, Nuthetal, Germany
- Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany
| | - Domenico Palli
- Institute for Cancer Research, Prevention and Clinical Network - ISPRO, Florence, Italy
| | - Valeria Pala
- Epidemiology and Prevention Unit, Fondazione IRCCS Istituto Nazionale Dei Tumori, Milan, Italy
| | - Salvatore Panico
- Dipartimento Di Medicina Clinica E Chirurgia, Federico II University, Naples, Italy
| | - Rosario Tumino
- Cancer Registry and Histopathology Department, Provincial Health Authority (ASP 7), Ragusa, Italy
| | - Carlotta Sacerdote
- Unit of Cancer Epidemiology, Città Della Salute E Della Scienza University-Hospital, Turin, Italy
| | - Bas Bueno-de-Mesquita
- Former Senior Scientist, Dept. For Determinants of Chronic Diseases (DCD), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
- Former Associate Professor, Department of Gastroenterology and Hepatology, University Medical Centre, Utrecht, The Netherlands
- Former Visiting Professor, Dept. Of Epidemiology and Biostatistics, The School of Public Health, Imperial College London, London, UK
- Former Academic Icon/visiting Professor, Dept. Of Social & Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Carla H. Van Gils
- Julius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Inger Torhild Gram
- Department of Community Medicine, University of Tromsø, the Arctic University of Norway, Tromsø, Norway
| | - Marko Lukic
- Department of Community Medicine, UiT, The Arctic University of Norway, Tromsø, Norway
| | - Núria Sala
- Unit of Nutrition, Environment and Cancer, Cancer Epidemiology Research Program and Translational Research Laboratory, Catalan Institute of Oncology (ICO), Biomedical Research Institute (IDIBELL), Barcelona, Spain
| | - María José Sánchez Pérez
- Escuela Andaluza De Salud Pública (EASP), Granada, Spain
- Instituto De Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- Centro De Investigación Biomédica En Red De Epidemiología Y Salud Pública (CIBERESP), Madrid, Spain
- Department of Preventive Medicine and Public Health, University of Granada, Granada, Spain
| | - Eva Ardanaz
- Navarra Public Health Institute, Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
- CIBER Epidemiology and Public Health CIBERESP, Madrid, Spain
| | - María-Dolores Chirlaque
- Department of Epidemiology, Regional Health Council, IMIB-Arrixaca, Murcia University, Murcia, Spain
- CIBER in Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Richard Palmquist
- Department of Medical Biosciences, Pathology, Umeå University, Ireland
| | - Thyra Löwenmark
- Department of Medical Biosciences, Pathology, Umeå University, Ireland
| | - Ruth C Travis
- Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Alicia Heath
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Amanda J Cross
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Heinz Freisling
- International Agency for Research on Cancer (IARC-WHO), Lyon, France
| | - Semi Zouiouich
- International Agency for Research on Cancer (IARC-WHO), Lyon, France
| | - Elom Aglago
- International Agency for Research on Cancer (IARC-WHO), Lyon, France
| | - Tim Waterboer
- Infections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - David J. Hughes
- Cancer Biology and Therapeutics Group, School of Biomolecular and Biomedical Science, UCD Conway Institute, University College Dublin, Dublin, Ireland
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22
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Lopès A, Billard E, Casse AH, Villéger R, Veziant J, Roche G, Carrier G, Sauvanet P, Briat A, Pagès F, Naimi S, Pezet D, Barnich N, Dumas B, Bonnet M. Colibactin-positive Escherichia coli induce a procarcinogenic immune environment leading to immunotherapy resistance in colorectal cancer. Int J Cancer 2020; 146:3147-3159. [PMID: 32037530 DOI: 10.1002/ijc.32920] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 01/17/2020] [Accepted: 02/04/2020] [Indexed: 02/06/2023]
Abstract
Colibactin-producing E. coli (CoPEC) are frequently detected in colorectal cancer (CRC) and exhibit procarcinogenic properties. Because increasing evidence show the role of immune environment and especially of antitumor T-cells in CRC development, we investigated the impact of CoPEC on these cells in human CRC and in the APCMin/+ mice colon. T-cell density was evaluated by immunohistochemistry in human tumors known for their CoPEC status. APCmin/+ mice were chronically infected with a CoPEC strain (11G5). Immune cells (neutrophils and T-cell populations) were then quantified by immunofluorescent staining of the colon. The quantification of lymphoid populations was also performed in the mesenteric lymph nodes (MLNs). Here, we show that the colonization of CRC patients by CoPEC is associated with a decrease of tumor-infiltrating T lymphocytes (CD3+ T-cells). Similarly, we demonstrated, in mice, that CoPEC chronic infection decreases CD3+ and CD8+ T-cells and increases colonic inflammation. In addition, we noticed a significant decrease in antitumor T-cells in the MLNs of CoPEC-infected mice compared to that of controls. Moreover, we show that CoPEC infection decreases the antimouse PD-1 immunotherapy efficacy in MC38 tumor model. Our findings suggest that CoPEC could promote a procarcinogenic immune environment through impairment of antitumor T-cell response, leading to tumoral resistance to immunotherapy. CoPEC could thus be a new biomarker predicting the anti-PD-1 response in CRC.
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Affiliation(s)
- Amélie Lopès
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
- Biologics Research, Sanofi R&D, Vitry-Sur-Seine, France
| | - Elisabeth Billard
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
| | - Al Hassan Casse
- Histopathology and Bio-Imaging Group, Sanofi R&D, Vitry-Sur-Seine, France
| | - Romain Villéger
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
| | - Julie Veziant
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
- Service de Chirurgie Digestive, CHU Clermont-Ferrand, INSERM, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Gwenaëlle Roche
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
| | - Guillaume Carrier
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
- Service de Chirurgie Digestive, CHU Clermont-Ferrand, INSERM, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Pierre Sauvanet
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
- Service de Chirurgie Digestive, CHU Clermont-Ferrand, INSERM, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Arnaud Briat
- UMR 1240 Inserm/Université Clermont Auvergne, Imagerie Moléculaire et Stratégies Théranostiques, Clermont-Ferrand, France
| | - Franck Pagès
- Immunomonitoring Platform, Laboratory of Immunology, AP-HP, Assistance Publique-Hopitaux de Paris, Georges Pompidou European Hospital, Paris, France
- Inserm U872, Laboratory of Integrative Cancer Immunology, Paris, France
- Université Paris Descartes, Paris, France
- Centre de Recherche des Cordeliers, Université Pierre et Marie Curie, Sorbonne Universités, Paris, France
| | - Souad Naimi
- Histopathology and Bio-Imaging Group, Sanofi R&D, Vitry-Sur-Seine, France
| | - Denis Pezet
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
- Service de Chirurgie Digestive, CHU Clermont-Ferrand, INSERM, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Nicolas Barnich
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
| | - Bruno Dumas
- Biologics Research, Sanofi R&D, Vitry-Sur-Seine, France
| | - Mathilde Bonnet
- UMR 1071 Inserm/Université Clermont Auvergne; USC-INRA 2018, Microbes, Intestin, Inflammation et Susceptibilité de l'Hôte (M2iSH), Clermont-Ferrand, France
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23
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Tang L, Zhou YJ, Zhu S, Liang GD, Zhuang H, Zhao MF, Chang XY, Li HN, Liu Z, Guo ZR, Liu WQ, He X, Wang CX, Zhao DD, Li JJ, Mu XQ, Yao BQ, Li X, Li YG, Duo LB, Wang L, Johnston RN, Zhou J, Zhao JB, Liu GR, Liu SL. E. coli diversity: low in colorectal cancer. BMC Med Genomics 2020; 13:59. [PMID: 32252754 PMCID: PMC7133007 DOI: 10.1186/s12920-020-0704-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 03/17/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Escherichia coli are mostly commensals but also contain pathogenic lineages. It is largely unclear whether the commensal E. coli as the potential origins of pathogenic lineages may consist of monophyletic or polyphyletic populations, elucidation of which is expected to lead to novel insights into the associations of E. coli diversity with human health and diseases. METHODS Using genomic sequencing and pulsed field gel electrophoresis (PFGE) techniques, we analyzed E. coli from the intestinal microbiota of three groups of healthy individuals, including preschool children, university students, and seniors of a longevity village, as well as colorectal cancer (CRC) patients, to probe the commensal E. coli populations for their diversity. RESULTS We delineated the 2280 fresh E. coli isolates from 185 subjects into distinct genome types (genotypes) by PFGE. The genomic diversity of the sampled E. coli populations was so high that a given subject may have multiple genotypes of E. coli, with the general diversity within a host going up from preschool children through university students to seniors. Compared to the healthy subjects, the CRC patients had the lowest diversity level among their E. coli isolates. Notably, E. coli isolates from CRC patients could suppress the growth of E. coli bacteria isolated from healthy controls under nutrient-limited culture conditions. CONCLUSIONS The coexistence of multiple E. coli lineages in a host may help create and maintain a microbial environment that is beneficial to the host. As such, the low diversity of E. coli bacteria may be associated with unhealthy microenvironment in the intestine and hence facilitate the pathogenesis of diseases such as CRC.
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Affiliation(s)
- Le Tang
- Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, 157 Baojian Road, Harbin, 150081, China
- HMU-UCCSM Centre for Infection and Genomics, Harbin Medical University, Harbin, China
- Departments of Ecosystems and Public Health, University of Calgary, Calgary, Canada
| | - Yu-Jie Zhou
- Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, 157 Baojian Road, Harbin, 150081, China
- HMU-UCCSM Centre for Infection and Genomics, Harbin Medical University, Harbin, China
- Present address: Department of Immunology, Capital Medical University, Beijing, China
| | - Songling Zhu
- Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, 157 Baojian Road, Harbin, 150081, China
- HMU-UCCSM Centre for Infection and Genomics, Harbin Medical University, Harbin, China
| | - Gong-Da Liang
- Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, 157 Baojian Road, Harbin, 150081, China
- HMU-UCCSM Centre for Infection and Genomics, Harbin Medical University, Harbin, China
- Department of Epidemiology, Public Health School, Harbin Medical University, Harbin, China
| | - He Zhuang
- Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, 157 Baojian Road, Harbin, 150081, China
- HMU-UCCSM Centre for Infection and Genomics, Harbin Medical University, Harbin, China
| | - Man-Fei Zhao
- Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, 157 Baojian Road, Harbin, 150081, China
- HMU-UCCSM Centre for Infection and Genomics, Harbin Medical University, Harbin, China
- Department of Epidemiology, Public Health School, Harbin Medical University, Harbin, China
| | - Xiao-Yun Chang
- Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, 157 Baojian Road, Harbin, 150081, China
- HMU-UCCSM Centre for Infection and Genomics, Harbin Medical University, Harbin, China
| | - Hai-Ning Li
- Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, 157 Baojian Road, Harbin, 150081, China
- HMU-UCCSM Centre for Infection and Genomics, Harbin Medical University, Harbin, China
| | - Zheng Liu
- Department of Colorectal Surgery of the Second Affiliated Hospital, Harbin Medical University, Harbin, China
- Present address: Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhi-Rong Guo
- Department of Microbiology, Peking University Health Sciences Center, Beijing, China
| | - Wei-Qiao Liu
- Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Canada
- Present address: Department of Clinical Neurosciences, University of Calgary, Calgary, Canada
| | - Xiaoyan He
- Department of Microbiology, Peking University Health Sciences Center, Beijing, China
| | - Chun-Xiao Wang
- Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, 157 Baojian Road, Harbin, 150081, China
- HMU-UCCSM Centre for Infection and Genomics, Harbin Medical University, Harbin, China
| | - Dan-Dan Zhao
- Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, 157 Baojian Road, Harbin, 150081, China
- HMU-UCCSM Centre for Infection and Genomics, Harbin Medical University, Harbin, China
| | - Jia-Jing Li
- Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, 157 Baojian Road, Harbin, 150081, China
- HMU-UCCSM Centre for Infection and Genomics, Harbin Medical University, Harbin, China
| | - Xiao-Qin Mu
- Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, 157 Baojian Road, Harbin, 150081, China
- HMU-UCCSM Centre for Infection and Genomics, Harbin Medical University, Harbin, China
- Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin, China
| | - Bing-Qing Yao
- Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, 157 Baojian Road, Harbin, 150081, China
- HMU-UCCSM Centre for Infection and Genomics, Harbin Medical University, Harbin, China
| | - Xia Li
- Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, 157 Baojian Road, Harbin, 150081, China
- HMU-UCCSM Centre for Infection and Genomics, Harbin Medical University, Harbin, China
- Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin, China
| | - Yong-Guo Li
- Department of Infectious Diseases of the First Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Li-Bo Duo
- Clinical Laboratory of Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Li Wang
- Clinical Laboratory of Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Randal N Johnston
- Biochemistry and Molecular Biology, University of Calgary, Calgary, Canada
| | - Jin Zhou
- Department of Hematology of the First Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Jing-Bo Zhao
- Department of Epidemiology, Public Health School, Harbin Medical University, Harbin, China
| | - Gui-Rong Liu
- Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, 157 Baojian Road, Harbin, 150081, China.
- HMU-UCCSM Centre for Infection and Genomics, Harbin Medical University, Harbin, China.
| | - Shu-Lin Liu
- Systemomics Center, College of Pharmacy, and Genomics Research Center (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, 157 Baojian Road, Harbin, 150081, China.
- HMU-UCCSM Centre for Infection and Genomics, Harbin Medical University, Harbin, China.
- Department of Microbiology, Peking University Health Sciences Center, Beijing, China.
- Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Canada.
- Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin, China.
- Department of Infectious Diseases of the First Affiliated Hospital, Harbin Medical University, Harbin, China.
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Lucas C, Salesse L, Hoang MHT, Bonnet M, Sauvanet P, Larabi A, Godfraind C, Gagnière J, Pezet D, Rosenstiel P, Barnich N, Bonnet R, Dalmasso G, Nguyen HTT. Autophagy of Intestinal Epithelial Cells Inhibits Colorectal Carcinogenesis Induced by Colibactin-Producing Escherichia coli in Apc Min/+ Mice. Gastroenterology 2020; 158:1373-1388. [PMID: 31917256 DOI: 10.1053/j.gastro.2019.12.026] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 12/14/2019] [Accepted: 12/18/2019] [Indexed: 12/28/2022]
Abstract
BACKGROUND & AIMS Colibactin-producing Escherichia coli (CoPEC) colonize the colonic mucosa of a higher proportion of patients with vs without colorectal cancer (CRC) and promote colorectal carcinogenesis in susceptible mouse models of CRC. Autophagy degrades cytoplasmic contents, including intracellular pathogens, via lysosomes and regulates intestinal homeostasis. We investigated whether inhibiting autophagy affects colorectal carcinogenesis in susceptible mice infected with CoPEC. METHODS Human intestinal epithelial cells (IECs) (HCT-116) were infected with a strain of CoPEC (11G5 strain) isolated from a patient or a mutant strain that does not produce colibactin (11G5ΔclbQ). Levels of ATG5, ATG16L1, and SQSTM1 (also called p62) were knocked down in HCT-116 cells using small interfering RNAs. ApcMin/+ mice and ApcMin/+ mice with IEC-specific disruption of Atg16l1 (ApcMin/+/Atg16l1ΔIEC) were infected with 11G5 or 11G5ΔclbQ. Colonic tissues were collected from mice and analyzed for tumor size and number and by immunohistochemical staining, immunoblot, and quantitative reverse transcription polymerase chain reaction for markers of autophagy, DNA damage, cell proliferation, and inflammation. We analyzed levels of messenger RNAs (mRNAs) encoding proteins involved in autophagy in colonic mucosal tissues from patients with sporadic CRC colonized with vs without CoPEC by quantitative reverse-transcription polymerase chain reaction. RESULTS Patient colonic mucosa with CoPEC colonization had higher levels of mRNAs encoding proteins involved in autophagy than colonic mucosa without these bacteria. Infection of cultured IECs with 11G5 induced autophagy and DNA damage repair, whereas infection with 11G5ΔclbQ did not. Knockdown of ATG5 in HCT-116 cells increased numbers of intracellular 11G5, secretion of interleukin (IL) 6 and IL8, and markers of DNA double-strand breaks but reduced markers of DNA repair, indicating that autophagy is required for bacteria-induced DNA damage repair. Knockdown of ATG5 in HCT-116 cells increased 11G5-induced senescence, promoting proliferation of uninfected cells. Under uninfected condition, ApcMin/+/Atg16l1ΔIEC mice developed fewer and smaller colon tumors than ApcMin/+ mice. However, after infection with 11G5, ApcMin/+/Atg16l1ΔIEC mice developed more and larger tumors, with a significant increase in mean histologic score, than infected ApcMin/+ mice. Increased levels of Il6, Tnf, and Cxcl1 mRNAs, decreased level of Il10 mRNA, and increased markers of DNA double-strand breaks and proliferation were observed in the colonic mucosa of 11G5-infected ApcMin/+/Atg16l1ΔIEC mice vs 11G5-infected ApcMin/+ mice. CONCLUSION Infection of IECs and susceptible mice with CoPEC promotes autophagy, which is required to prevent colorectal tumorigenesis. Loss of ATG16L1 from IECs increases markers of inflammation, DNA damage, and cell proliferation and increases colorectal tumorigenesis in 11G5-infected ApcMin/+ mice. These findings indicate the importance of autophagy in response to CoPEC infection, and strategies to induce autophagy might be developed for patients with CRC and CoPEC colonization.
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Affiliation(s)
- Cécily Lucas
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Laurène Salesse
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France
| | - My Hanh Thi Hoang
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France; Department of Cell Biology, Faculty of Biology, University of Science, Vietnam National University, Hanoi, Vietnam
| | - Mathilde Bonnet
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Pierre Sauvanet
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France; Department of Digestive and Hepatobiliary Surgery, CHU (Centre Hospitalier Universitaire) Clermont-Ferrand, France
| | - Anaïs Larabi
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Catherine Godfraind
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France; Department of Pathology, CHU Gabriel Montpied, Clermont-Ferrand, France
| | - Johan Gagnière
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France; Department of Digestive and Hepatobiliary Surgery, CHU (Centre Hospitalier Universitaire) Clermont-Ferrand, France
| | - Denis Pezet
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France; Department of Digestive and Hepatobiliary Surgery, CHU (Centre Hospitalier Universitaire) Clermont-Ferrand, France
| | - Philip Rosenstiel
- Institute of Clinical Molecular Biology, Christian-Albrechts-University and University Hospital Schleswig-Holstein, Kiel, Germany
| | - Nicolas Barnich
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Richard Bonnet
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France; Department of Bacteriology, CHU Gabriel Montpied, Clermont-Ferrand, France
| | - Guillaume Dalmasso
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Hang Thi Thu Nguyen
- M2iSH (Microbes, intestine, inflammation and Susceptibility of the Host), UMR 1071 Inserm, University of Clermont Auvergne, Clermont-Ferrand, France.
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The Relationship between Prevention and Treatment of Colorectal Cancer and Cancerous Toxin Pathogenesis Theory Basing on Gut Microbiota. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:7162545. [PMID: 32774427 PMCID: PMC7391111 DOI: 10.1155/2020/7162545] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 08/18/2019] [Accepted: 01/07/2020] [Indexed: 02/07/2023]
Abstract
Gut microbiota is a diverse consortium of bacteria, fungi, protozoa, and viruses in the gut of all mammals. Gut microbiota remains in steady state under normal conditions. Changes in the internal and external environment may cause gut Microbiota to be out of tune. Malignant tumors are one of the major diseases currently endangering human health. CRC (colorectal cancer) has a significant upward trend in morbidity and mortality in many parts of the world. Technological advances have not yet brought about a breakthrough in the efficacy of CRC. The development of colon cancer is closely related to gut microbiota imbalance. According to more than 60 years of clinical practice, Professor Zhongying Zhou first proposed the pathogenesis theory of "cancerous toxin" in the 1990s and believed that cancerous toxin was a key pathogenesis of tumor development. Under the guidance of the theory of cancerous toxin, combined with clinical practice, Professor Zhou created an effective anticancer Chinese herbal compound, Jiedu Xiaoai Prescription. This paper summarizes recent hotspots related to gut microbiota and the occurrence, development, and prevention of colon cancer at home and abroad. The relationship between gut microbiota and cancerous toxin theory is proposed, and the feasibility of further studying the biological basis of cancerous toxin pathogenesis theory from the perspective of gut microbiota is pointed out.
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Veziant J, Poirot K, Chevarin C, Cassagnes L, Sauvanet P, Chassaing B, Robin F, Godfraind C, Barnich N, Pezet D, Pereira B, Gagniere J, Bonnet M. Prognostic value of a combination of innovative factors (gut microbiota, sarcopenia, obesity, metabolic syndrome) to predict surgical/oncologic outcomes following surgery for sporadic colorectal cancer: a prospective cohort study protocol (METABIOTE). BMJ Open 2020; 10:e031472. [PMID: 31915159 PMCID: PMC6955509 DOI: 10.1136/bmjopen-2019-031472] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 11/12/2019] [Accepted: 11/18/2019] [Indexed: 12/19/2022] Open
Abstract
INTRODUCTION Colorectal cancer (CRC) is still associated with poor prognosis, especially in patients with advanced disease. Development of new prognostic tools replacing or supplementing those routinely used is definitely needed, with the aim to optimise and personalise treatment strategies. Gut microbiota composition and body composition profile (obesity, sarcopenia and metabolic syndrome) have recently been reported separately as new relevant prognostic factors for postoperative surgical and oncologic outcomes following CRC surgery. However interactions that exist between these factors have been poorly studied. The purpose of this translational prospective cohort study (METABIOTE) is to investigate potential interactions between gut microbiota, body composition profile and postoperative outcomes and recurrence in patients undergoing surgery for non-metastatic sporadic CRC. METHODS AND ANALYSIS This single-centre project aims to prospectively enrol 300 consecutive patients undergoing surgery for non-metastatic sporadic CRC at the University Hospital of Clermont-Ferrand, France for the identification of specific microbial signatures (from tumour, colonic mucosa and stools samples) associated with particular metabolic profiles that could impact postoperative morbidity and oncologic outcomes, using microbiological, molecular and imaging approaches. The primary outcome is the 5-year overall survival (OS). Other outcomes are 5-year CRC-related OS, 5-year disease-free survival, 30-day postoperative morbidity, 90-day postoperative mortality and length of hospital stay. ETHICS AND DISSEMINATION This study protocol was reviewed and approved by an independent French regional review board (n°2018-A00352-53, 'Comité de Protection des Personnes Ile de France VII' on 4 July 2018, declared to the competent French authority ('Agence Nationale de Sécurité du Médicament et des produits de santé', France), and registered on the Clinical Trials web-based platform (NCT03843905). Oral and written informed consent will be obtained from each included patient. Study results will be reported to the scientific community at conferences and in peer-reviewed scientific journals. TRIAL REGISTRATION NUMBER NCT03843905..
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Affiliation(s)
- Julie Veziant
- Department of Digestive and Hepatobiliary Surgery, University Hospital, Clermont-Ferrand, France
- U1071 Inserm, Clermont-Auvergne University, Clermont-Ferrand, France
| | - Karine Poirot
- Department of Digestive and Hepatobiliary Surgery, University Hospital, Clermont-Ferrand, France
| | - Caroline Chevarin
- U1071 Inserm, Clermont-Auvergne University, Clermont-Ferrand, France
| | - Lucie Cassagnes
- Department of Radiology, Universitary Hospital, Clermont Ferrand, France
| | - Pierre Sauvanet
- U1071 Inserm, Clermont-Auvergne University, Clermont-Ferrand, France
| | | | - Frederic Robin
- U1071 Inserm, Clermont-Auvergne University, Clermont-Ferrand, France
| | - Catherine Godfraind
- Department of Anatomopathology, Universitary Hospital, Clermont Ferrand, France
| | - Nicolas Barnich
- U1071 Inserm, Clermont-Auvergne University, Clermont-Ferrand, France
| | - Denis Pezet
- Department of Digestive and Hepatobiliary Surgery, University Hospital, Clermont-Ferrand, France
- U1071 Inserm, Clermont-Auvergne University, Clermont-Ferrand, France
| | - Bruno Pereira
- Department of Clinical research and Innovation (DRCI), Universitary Hospital, Clermont Ferrand, France
| | - Johan Gagniere
- Department of Digestive and Hepatobiliary Surgery, University Hospital, Clermont-Ferrand, France
- U1071 Inserm, Clermont-Auvergne University, Clermont-Ferrand, France
| | - Mathilde Bonnet
- U1071 Inserm, Clermont-Auvergne University, Clermont-Ferrand, France
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Tarallo S, Ferrero G, Gallo G, Francavilla A, Clerico G, Realis Luc A, Manghi P, Thomas AM, Vineis P, Segata N, Pardini B, Naccarati A, Cordero F. Altered Fecal Small RNA Profiles in Colorectal Cancer Reflect Gut Microbiome Composition in Stool Samples. mSystems 2019; 4:e00289-19. [PMID: 31530647 PMCID: PMC6749105 DOI: 10.1128/msystems.00289-19] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 08/28/2019] [Indexed: 02/07/2023] Open
Abstract
Dysbiotic configurations of the human gut microbiota have been linked to colorectal cancer (CRC). Human small noncoding RNAs are also implicated in CRC, and recent findings suggest that their release in the gut lumen contributes to shape the gut microbiota. Bacterial small RNAs (bsRNAs) may also play a role in carcinogenesis, but their role has been less extensively explored. Here, we performed small RNA and shotgun sequencing on 80 stool specimens from patients with CRC or with adenomas and from healthy subjects collected in a cross-sectional study to evaluate their combined use as a predictive tool for disease detection. We observed considerable overlap and a correlation between metagenomic and bsRNA quantitative taxonomic profiles obtained from the two approaches. We identified a combined predictive signature composed of 32 features from human and microbial small RNAs and DNA-based microbiome able to accurately classify CRC samples separately from healthy and adenoma samples (area under the curve [AUC] = 0.87). In the present study, we report evidence that host-microbiome dysbiosis in CRC can also be observed by examination of altered small RNA stool profiles. Integrated analyses of the microbiome and small RNAs in the human stool may provide insights for designing more-accurate tools for diagnostic purposes.IMPORTANCE The characteristics of microbial small RNA transcription are largely unknown, while it is of primary importance for a better identification of molecules with functional activities in the gut niche under both healthy and disease conditions. By performing combined analyses of metagenomic and small RNA sequencing (sRNA-Seq) data, we characterized both the human and microbial small RNA contents of stool samples from healthy individuals and from patients with colorectal carcinoma or adenoma. With the integrative analyses of metagenomic and sRNA-Seq data, we identified a human and microbial small RNA signature which can be used to improve diagnosis of the disease. Our analysis of human and gut microbiome small RNA expression is relevant to generation of the first hypotheses about the potential molecular interactions occurring in the gut of CRC patients, and it can be the basis for further mechanistic studies and clinical tests.
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Affiliation(s)
- Sonia Tarallo
- Italian Institute for Genomic Medicine (IIGM), Turin, Italy
| | - Giulio Ferrero
- Department of Computer Science, University of Turin, Turin, Italy
| | - Gaetano Gallo
- Department of Surgical and Medical Sciences, University of Catanzaro, Catanzaro, Italy
- Department of Colorectal Surgery, Clinica S. Rita, Vercelli, Italy
| | | | - Giuseppe Clerico
- Department of Colorectal Surgery, Clinica S. Rita, Vercelli, Italy
| | | | - Paolo Manghi
- Department CIBIO, University of Trento, Trento, Italy
| | | | - Paolo Vineis
- Italian Institute for Genomic Medicine (IIGM), Turin, Italy
- Imperial College, London, United Kingdom
| | - Nicola Segata
- Department CIBIO, University of Trento, Trento, Italy
| | - Barbara Pardini
- Italian Institute for Genomic Medicine (IIGM), Turin, Italy
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Alessio Naccarati
- Italian Institute for Genomic Medicine (IIGM), Turin, Italy
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Prague, Czech Republic
| | - Francesca Cordero
- Italian Institute for Genomic Medicine (IIGM), Turin, Italy
- Department of Computer Science, University of Turin, Turin, Italy
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Reis SAD, da Conceição LL, Peluzio MDCG. Intestinal microbiota and colorectal cancer: changes in the intestinal microenvironment and their relation to the disease. J Med Microbiol 2019; 68:1391-1407. [PMID: 31424382 DOI: 10.1099/jmm.0.001049] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Tools that predict the risk of colorectal cancer are important for early diagnosis, given the high mortality rate for this cancer. The composition of the intestinal microbiota is now considered to be a risk factor for the development of colorectal cancer. This discovery has motivated a growing number of studies to identify the micro-organisms responsible for the onset and/or progression of colorectal cancer. With this in mind, this review discusses the relationship between the composition of the intestinal microbiota and colorectal cancer risk. Prospective and case-control studies indicate that the intestinal microbiota of individuals with colorectal cancer usually contains a greater proportion of bacteria responsible for gastrointestinal tract inflammatory diseases, as well as bacteria that produce toxins and carcinogenic metabolites. In contrast, there tends to be a reduced presence of butyric acid-producing bacteria, probiotic bacteria and potentially probiotic bacteria. Despite these differences, the onset and development of colorectal cancer cannot be attributed to a specific micro-organism. Thus, studies focused on the formation of the intestinal microbiota and factors that modulate its composition are important for the development of approaches for colorectal cancer prevention.
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Affiliation(s)
- Sandra Aparecida Dos Reis
- Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-900, Brazil
| | - Lisiane Lopes da Conceição
- Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-900, Brazil
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Morales E, Chen J, Greathouse KL. Compositional Analysis of the Human Microbiome in Cancer Research. Methods Mol Biol 2019; 1928:299-335. [PMID: 30725462 DOI: 10.1007/978-1-4939-9027-6_16] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Gut microbial composition has shown to be associated with obesity, diabetes mellitus, inflammatory bowel disease, colitis, autoimmune disorders, and cancer, among other diseases. Microbiome research has significantly evolved through the years and continues to advance as we develop new and better strategies to more accurately measure its composition and function. Careful selection of study design, inclusion and exclusion criteria of participants, and methodology are paramount to accurately analyze microbial structure. Here we present the most up-to-date available information on methods for gut microbial collection and analysis.
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Affiliation(s)
- Elisa Morales
- Robbins College of Health and Human Sciences, Baylor University, Waco, TX, USA
| | - Jun Chen
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota, USA
| | - K Leigh Greathouse
- Robbins College of Health and Human Sciences, Baylor University, Waco, TX, USA.
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Shuwen H, Xi Y, Quan Q, Yuefen P, Miao D, Qing Z. Relationship between intestinal microorganisms and T lymphocytes in colorectal cancer. Future Oncol 2019; 15:1655-1666. [PMID: 31044617 DOI: 10.2217/fon-2018-0595] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Colorectal cancer (CRC) is a common type of malignant cancer worldwide. Recent studies have identified the gut microbiota as the origin of CRC, and T lymphocyte-mediated immune functions have been shown to play an important role in this disease. By summarizing previous literature, we found that Fusobacterium nucleatum may protect CRC from immune cell attack by inhibiting T cells and influencing the production of many chemokines and cytokines. Some bacterial metabolites and probiotics have been shown to participate in the regulation of CRC through T cell-mediated molecular pathways. To visualize the relevant data, an association network of intestinal microorganisms and T lymphocytes associated with CRC was constructed. This work may provide direction for - and insight into - further research on the relationship between intestinal microorganisms and T lymphocytes in CRC.
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Affiliation(s)
- Han Shuwen
- Department of Medical Oncology, Huzhou Central Hospital, No.198 Hongqi Road, Huzhou, Zhejiang Province 313000, PR China
| | - Yang Xi
- Department of Intervention & Radiotherapy, Huzhou Central Hospital, No.198 Hongqi Road, Huzhou, Zhejiang Province 313000, PR China
| | - Qi Quan
- Department of Medical Oncology, Huzhou Central Hospital, No.198 Hongqi Road, Huzhou, Zhejiang Province 313000, PR China
| | - Pan Yuefen
- Department of Medical Oncology, Huzhou Central Hospital, No.198 Hongqi Road, Huzhou, Zhejiang Province 313000, PR China
| | - Da Miao
- Department of Critical Care Medicine, Medical College of Nursing, Huzhou University, No. 759 Erhuan East Road, Huzhou, Zhejiang Province 313000, PR China
| | - Zhou Qing
- Department of Critical Care Medicine, Huzhou Central Hospital, No.198 Hongqi Road, Huzhou, Zhejiang Province 313000, PR China
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Hrncir T, Hrncirova L, Kverka M, Tlaskalova-Hogenova H. The role of gut microbiota in intestinal and liver diseases. Lab Anim 2018; 53:271-280. [PMID: 30580671 DOI: 10.1177/0023677218818605] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The world-wide incidence of many immune-mediated and metabolic diseases, including those of the intestines and liver, is steadily increasing. Gut microbiota plays a central role in the pathogenesis of these diseases as it mediates environmental changes to the intestinal immune system. Various environmental factors including diet, food additives and medication also trigger the compositional and functional alterations of microbiota, that is, dysbiosis, and this dysbiosis is closely associated with many chronic inflammatory diseases. However, the causal relationship remains unclear for the majority of these diseases. In this review, we discuss essential epidemiological data, known pathogenetic factors including those of genetic and environmental nature, while mainly focusing on the role of gut microbiota in the development of selected intestinal and liver diseases. Using specific examples, we also briefly describe some of the most widely-used animal models including gnotobiotic models and their contribution to the research of pathogenetic mechanisms of the host-microbiota relationship.
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Affiliation(s)
- Tomas Hrncir
- 1 Institute of Microbiology, The Czech Academy of Sciences, Czech Republic
| | - Lucia Hrncirova
- 1 Institute of Microbiology, The Czech Academy of Sciences, Czech Republic.,2 Faculty of Medicine, Charles University, Czech Republic
| | - Miloslav Kverka
- 1 Institute of Microbiology, The Czech Academy of Sciences, Czech Republic
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The Dynamic Changes of Gut Microbiota in Muc2 Deficient Mice. Int J Mol Sci 2018; 19:ijms19092809. [PMID: 30231491 PMCID: PMC6164417 DOI: 10.3390/ijms19092809] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 09/11/2018] [Accepted: 09/12/2018] [Indexed: 12/26/2022] Open
Abstract
Gut dysbiosis is associated with colitis-associated colorectal carcinogenesis, and the genetic deficiency of the Muc2 gene causes spontaneous development of colitis and colorectal cancer. Whether there are changes of gut microbiota and a linkage between the changes of microbiota and intestinal pathology in Muc2-/- mice are unclear. Muc2-/- and Muc2+/+ mice were generated by backcrossing from Muc2+/- mice, and the fecal samples were collected at different dates (48th, 98th, 118th, 138th, and 178th day). Gut microbiota were analyzed by high-throughput sequencing with the universal 16S rRNA primers (V3⁻V5 region). All mice were sacrificed at day 178 to collect colonic tissue and epithelial cells for the analysis of histopathology and inflammatory cytokines. On the 178th day, Muc2-/- mice developed colorectal chronic colitis, hyperplasia, adenomas and adenocarcinomas, and inflammatory cytokines (e.g., cyclooxygenase 2 (COX-2), interleukin 6 (IL-6), tumor necrosis factor-α (TNF-α), interleukin 1 β (IL-1β), i-kappa-B-kinase β (IKKβ)) were significantly increased in colonic epithelial cells of Muc2-/- mice. In general, structural segregation of gut microbiota was observed throughout the experimental time points between the Muc2-/- and Muc2+/+ mice. Impressively, in Muc2-/- mice, Alpha diversities reflected by Shannon and Chao indexes were higher, the phylum of Firmicutes was enriched and Bacteroidetes was decreased, and Desulfovibrio, Escherichia, Akkermansia, Turicibacter, and Erysipelotrichaceae were significantly increased, but Lactobacilli and Lachnospiraceae were significantly decreased. Moreover, the abundance of Ruminococcaceae and butyrate-producing bacteria was significantly higher in the Muc2-/- mice. There were significant differences of gut microbiota between Muc2-/- and Muc2+/+ mice. The dynamic changes of microbiota might contribute to the development of colitis and colitis-associated colorectal carcinogenesis. Therefore, this study revealed specific functional bacteria in the development of colitis and colitis-associated colorectal carcinogenesis, which will benefit the development of preventive and therapeutic strategies for chronic inflammation and its malignant transformation.
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Serra N, Di Carlo P, Gulotta G, d' Arpa F, Giammanco A, Colomba C, Melfa G, Fasciana T, Sergi C. Bactibilia in women affected with diseases of the biliary tract and pancreas. A STROBE guidelines-adherent cross-sectional study in Southern Italy. J Med Microbiol 2018; 67:1090-1095. [PMID: 29975626 DOI: 10.1099/jmm.0.000787] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
PURPOSE Bile is a hepatobiliary lipid-rich sterile solution, and its colonization by microorganisms defines the condition of bactibilia. In this study, we aimed to assess the bile microbiological flora and its potential link with comorbidity in women. METHODOLOGY We performed a microbiologic investigation on 53 female patients with biliopancreatic diseases who granted consent, and we analysed the data using a MATLAB platform. RESULTS We found that the most frequent disease associated with bactibilia was pancreas head carcinoma (PHC) (P=0.0015), while the least frequent disease was gall bladder carcinoma (GBC) (P=0.0002). The most common microorganisms were Pseudomonas spp. (P<0.0001) and Escherichia coli (P<0.0001). In particular Pseudomonas spp. and E. coli were negatively correlated to PHC presence and positively correlated to CCA by both univariate and multivariate analysis. CONCLUSIONS Gram-negative bacteria have been linked to a tumour-associated inflammatory status. In the last 30 years, the analysis of mortality rate in Italy for PHC and GBC shows an increasing and a decreasing trend, respectively. Although this study targeted only 53 patients and does not reflect the frequency of diagnosis in a Southern Italian population, the decrease in GBC may raise the suggestion ofnon-adherence to a Mediterranean diet that may have become more prevalent in Southern Italy since the 1990s.
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Affiliation(s)
- Nicola Serra
- 1Department of Pediatrics, University Federico II, Naples, Italy
| | - Paola Di Carlo
- 2Department of Sciences for Health Promotion and Mother and Child Care, University of Palermo, Italy
| | - Gaspare Gulotta
- 3Department of General Surgery and Emergency, University of Palermo, Italy
| | - Francesco d' Arpa
- 3Department of General Surgery and Emergency, University of Palermo, Italy
| | - Anna Giammanco
- 2Department of Sciences for Health Promotion and Mother and Child Care, University of Palermo, Italy
| | - Claudia Colomba
- 2Department of Sciences for Health Promotion and Mother and Child Care, University of Palermo, Italy
| | - Giuseppina Melfa
- 3Department of General Surgery and Emergency, University of Palermo, Italy
| | - Teresa Fasciana
- 2Department of Sciences for Health Promotion and Mother and Child Care, University of Palermo, Italy
| | - Consolato Sergi
- 5Stollery Children's Hospital, University of Alberta, Edmonton, AB, Canada
- 4Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
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Wassenaar TM. E. coli and colorectal cancer: a complex relationship that deserves a critical mindset. Crit Rev Microbiol 2018; 44:619-632. [DOI: 10.1080/1040841x.2018.1481013] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Villéger R, Lopès A, Veziant J, Gagnière J, Barnich N, Billard E, Boucher D, Bonnet M. Microbial markers in colorectal cancer detection and/or prognosis. World J Gastroenterol 2018; 24:2327-2347. [PMID: 29904241 PMCID: PMC6000297 DOI: 10.3748/wjg.v24.i22.2327] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 05/03/2018] [Accepted: 05/18/2018] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer (CRC) is the second leading cause of cancer worldwide. CRC is still associated with a poor prognosis among patients with advanced disease. On the contrary, due to its slow progression from detectable precancerous lesions, the prognosis for patients with early stages of CRC is encouraging. While most robust methods are invasive and costly, actual patient-friendly screening methods for CRC suffer of lack of sensitivity and specificity. Therefore, the development of sensitive, non-invasive and cost-effective methods for CRC detection and prognosis are necessary for increasing the chances of a cure. Beyond its beneficial functions for the host, increasing evidence suggests that the intestinal microbiota is a key factor associated with carcinogenesis. Many clinical studies have reported a disruption in the gut microbiota balance and an alteration in the faecal metabolome of CRC patients, suggesting the potential use of a microbial-based test as a non-invasive diagnostic and/or prognostic tool for CRC screening. This review aims to discuss the microbial signatures associated with CRC known to date, including dysbiosis and faecal metabolome alterations, and the potential use of microbial variation markers for non-invasive early diagnosis and/or prognostic assessment of CRC and advanced adenomas. We will finally discuss the possible use of these markers as predicators for treatment response and their limitations.
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Affiliation(s)
- Romain Villéger
- Université Clermont Auvergne, Inserm U1071, USC-INRA 2018, M2iSH, CRNH Auvergne, Clermont-Ferrand 63000, France
| | - Amélie Lopès
- Université Clermont Auvergne, Inserm U1071, USC-INRA 2018, M2iSH, CRNH Auvergne, Clermont-Ferrand 63000, France
- Research Biologics, Sanofi R&D, Vitry-Sur-Seine 94400, France
| | - Julie Veziant
- Université Clermont Auvergne, Inserm U1071, USC-INRA 2018, M2iSH, CRNH Auvergne, Clermont-Ferrand 63000, France
- Chirurgie digestive, Centre Hospitalier Universitaire, Clermont-Ferrand 63000, France
| | - Johan Gagnière
- Université Clermont Auvergne, Inserm U1071, USC-INRA 2018, M2iSH, CRNH Auvergne, Clermont-Ferrand 63000, France
- Chirurgie digestive, Centre Hospitalier Universitaire, Clermont-Ferrand 63000, France
| | - Nicolas Barnich
- Université Clermont Auvergne, Inserm U1071, USC-INRA 2018, M2iSH, CRNH Auvergne, Clermont-Ferrand 63000, France
- Université Clermont Auvergne, Institut Universitaire de Technologie de Clermont-Ferrand, Clermont-Ferrand 63000, France
| | - Elisabeth Billard
- Université Clermont Auvergne, Inserm U1071, USC-INRA 2018, M2iSH, CRNH Auvergne, Clermont-Ferrand 63000, France
- Université Clermont Auvergne, Institut Universitaire de Technologie de Clermont-Ferrand, Clermont-Ferrand 63000, France
| | - Delphine Boucher
- Université Clermont Auvergne, Inserm U1071, USC-INRA 2018, M2iSH, CRNH Auvergne, Clermont-Ferrand 63000, France
- Université Clermont Auvergne, Institut Universitaire de Technologie de Clermont-Ferrand, Clermont-Ferrand 63000, France
| | - Mathilde Bonnet
- Université Clermont Auvergne, Inserm U1071, USC-INRA 2018, M2iSH, CRNH Auvergne, Clermont-Ferrand 63000, France
- Université Clermont Auvergne, Institut Universitaire de Technologie de Clermont-Ferrand, Clermont-Ferrand 63000, France
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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: 149] [Impact Index Per Article: 21.3] [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.
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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.
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Maisonneuve C, Irrazabal T, Martin A, Girardin SE, Philpott DJ. The Impact of the Gut Microbiome on Colorectal Cancer. ANNUAL REVIEW OF CANCER BIOLOGY-SERIES 2018. [DOI: 10.1146/annurev-cancerbio-030617-050240] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Charles Maisonneuve
- Department of Immunology, University of Toronto, Toronto, Ontario M5S 1A8, Canada;,
| | - Thergiory Irrazabal
- Department of Immunology, University of Toronto, Toronto, Ontario M5S 1A8, Canada;,
| | - Alberto Martin
- Department of Immunology, University of Toronto, Toronto, Ontario M5S 1A8, Canada;,
| | - Stephen E. Girardin
- Department of Immunology, University of Toronto, Toronto, Ontario M5S 1A8, Canada;,
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Dana J. Philpott
- Department of Immunology, University of Toronto, Toronto, Ontario M5S 1A8, Canada;,
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Abstract
Colorectal cancer, the fourth leading cause of cancer-related death worldwide, is a multifactorial disease involving genetic, environmental and lifestyle risk factors. In addition, increased evidence has established a role for the intestinal microbiota in the development of colorectal cancer. Indeed, changes in the intestinal microbiota composition in colorectal cancer patients compared to control subjects have been reported. Several bacterial species have been shown to exhibit the pro-inflammatory and pro-carcinogenic properties, which could consequently have an impact on colorectal carcinogenesis. This review will summarize the current knowledge about the potential links between the intestinal microbiota and colorectal cancer, with a focus on the pro-carcinogenic properties of bacterial microbiota such as induction of inflammation, the biosynthesis of genotoxins that interfere with cell cycle regulation and the production of toxic metabolites. Finally, we will describe the potential therapeutic strategies based on intestinal microbiota manipulation for colorectal cancer treatment.
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Affiliation(s)
- Cécily Lucas
- M2iSH, UMR 1071 Inserm, University of Clermont Auvergne, INRA USC 2018, Clermont-Ferrand 63001, France.
| | - Nicolas Barnich
- M2iSH, UMR 1071 Inserm, University of Clermont Auvergne, INRA USC 2018, Clermont-Ferrand 63001, France.
| | - Hang Thi Thu Nguyen
- M2iSH, UMR 1071 Inserm, University of Clermont Auvergne, INRA USC 2018, Clermont-Ferrand 63001, France.
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