Cited by 465Gut microbiota and healthGenetic factors in colorectal cancerOral microbiology and periodontitis research

Fusobacterium in Colonic Flora and Molecular Features of Colorectal Carcinoma

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Tahara, Tomomitsu, Yamamoto, Eiichiro, Suzuki, Hiromu, Maruyama, Reo, Chung, Woonbok, Garriga, Judith, Jelinek, Jaroslav, Yamano, Hiro-o +7 more·2014·Cancer Research

Published version of a preprint

Abstract

Fusobacterium species are part of the gut microbiome in humans. Recent studies have identified overrepresentation of Fusobacterium in colorectal cancer tissues, but it is not yet clear whether this is pathogenic or simply an epiphenomenon. In this study, we evaluated the relationship between Fusobacterium status and molecular features in colorectal cancers through quantitative real-time PCR in 149 colorectal cancer tissues, 89 adjacent normal appearing mucosae and 72 colonic mucosae from cancer-free individuals. Results were correlated with CpG island methylator phenotype (CIMP) status, microsatellite instability (MSI), and mutations in BRAF, KRAS, TP53, CHD7, and CHD8. Whole-exome capture sequencing data were also available in 11 cases. Fusobacterium was detectable in 111 of 149 (74%) colorectal cancer tissues and heavily enriched in 9% (14/149) of the cases. As expected, Fusobacterium was also detected in normal appearing mucosae from both cancer and cancer-free individuals, but the amount of bacteria was much lower compared with colorectal cancer tissues (a mean of 250-fold lower for Pan-fusobacterium). We found the Fusobacterium-high colorectal cancer group (FB-high) to be associated with CIMP positivity (P = 0.001), TP53 wild-type (P = 0.015), hMLH1 methylation positivity (P = 0.0028), MSI (P = 0.018), and CHD7/8 mutation positivity (P = 0.002). Among the 11 cases where whole-exome sequencing data were available, two that were FB-high cases also had the highest number of somatic mutations (a mean of 736 per case in FB-high vs. 225 per case in all others). Taken together, our findings show that Fusobacterium enrichment is associated with specific molecular subsets of colorectal cancers, offering support for a pathogenic role in colorectal cancer for this gut microbiome component.

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Authors
Tahara, T., Yamamoto, E., Suzuki, H., Maruyama, R., Chung, W., Garriga, J., Jelinek, J., Yamano, H.-O., Sugai, T., An, B., Shureiqi, I., Toyota, M., Kondo, Y., Estécio, M. R. H., & Issa, J.-P. J.
Affiliations
  • The University of Texas MD Anderson Cancer Center (US)
  • Authors' Affiliations: 1Fels Institute for Cancer Research & Molecular Biology, Temple University School of Medicine, Philadelphia, Pennsylvania; 2Department of Gastroenterology, Fujita Health University School of Medicine, Toyoake; First Departments of 3Internal Medicine and 4Molecular Biology, Sapporo Medical University, Sapporo; 5Department of Gastroenterology, Akita Red Cross Hospital, Akita; 6Department of Pathology, Iwate Medical University, Morioka; 7Division of Molecular Oncology, Aichi Cancer Center Research Institute, Nagoya, Japan; 8Division of OVP, Department of Clinical Cancer Prevention, Cancer Prevention and Population Sciences; 9Center for Cancer Epigenetics, The University of Texas MD Anderson Cancer Center, Houston; and 10Department of Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Smithville, Texas
Corresponding author
Tahara, Tomomitsu
Venue
Cancer Research
Published
2014-03-01
Volume
74
Issue
5
Pages
1311-1318
ISSN
  • 0008-5472 (ISSN-L)
  • 1538-7445
OpenAlex
W1971000774
Cited by
465
References
37
Citations by year
2026: 24 · 2025: 35 · 2024: 44 · 2023: 38 · 2022: 41 · 2021: 47 · 2020: 50 · 2019: 47 · 2018: 49 · 2017: 27 · 2016: 34 · 2015: 23 · 2014: 6
FWCI
12.29
Type
journal article
Language
en
Open access
Locations
  • Cancer Research (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Japan Society for the Promotion of Science (25290048, 23501261)
  • National Cancer Institute (CA158112, R01CA158112, R01CA098006, CA098006, P30CA016672)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Genetic factors in colorectal cancer
  • Health Sciences › Dentistry › Periodontics › Oral microbiology and periodontitis research
Keywords
Fusobacterium, colorectal cancer, gut microbiota, CpG island methylator phenotype, microsatellite instability, TP53 mutation, CHD7 mutations, BRAF mutation, KRAS mutation, somatic mutations, colonic mucosa
MeSH terms
Aged, DNA Helicases, DNA-Binding Proteins, Female, Fusobacterium, Fusobacterium Infections, Humans, Male, Middle Aged, Mucous Membrane, Mutation, Transcription Factors, Colorectal Neoplasms, Gene Expression Regulation, Neoplastic, Tumor Suppressor Protein p53, ras Proteins, CpG Islands, DNA Methylation, Proto-Oncogene Proteins B-raf, Microsatellite Instability

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