Cited by 211Esophageal Cancer Research and TreatmentHelicobacter pylori-related gastroenterology studiesGastroesophageal reflux and treatments

Oesophageal bacterial biofilm changes in gastro‐oesophageal reflux disease, Barrett's and oesophageal carcinoma: association or causality?

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Blackett, K. L., Siddhi, S. S., Cleary, S., Steed, H., Miller, M. H., Macfarlane, S., Macfarlane, G. T., Dillon, J. F.·2013·Alimentary Pharmacology & Therapeutics

Abstract

Summary: Summary: Barrett's oesophagus (BO) and gastro‐oesophageal reflux disease (GERD) are precursors of oesophageal adenocarcinoma (OAC). There is an oesophageal biofilm, which changes in disease, but its role in aetiopathogenesis remains unclear. Aim: To define the oesophageal microbiota of patients with GERD, BO and OAC compared with controls and to investigate mucosal responses related to the microbiota. Methods: Cultural analysis identified the dominant bacterial species from a subset of each disease group. Based on this, molecular techniques were used to define the cohort. Host responses were analysed in tissues and co‐culture experiments. Results: A total of 111 species belonging to 26 genera were isolated. There was a significant decrease in bacterial counts in the GERD and BO groups for all genera except Campylobacter, which colonised GERD and Barrett's patients in increasing numbers. Campylobacter concisus was the dominant species. This relationship was not seen in the cancer group. Significant increases in IL‐18 were seen in GERD and BO colonised by Campylobacter. Conclusions: This study defines differences in the oesophageal biofilm in disease states, revealing the emergence of C. concisus as the dominant new colonist in the refluxed oesophagus. We also associate the presence of these bacteria with increased expression of cytokines related to carcinogenesis.

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  • Conventional treatment for non-erosive reflux disease with gastric acid suppressing medications has been associated with an increased incidence of abnormal microbiota and malignancy.

    “In addition, the conventional treatment for non-erosive reflux disease with gastric acid suppressing medications has been associated with an increased incidence of abnormal microbiota and malignancy [10].”

    From Cytoprotective Effects of Hydrogen Sulfide in Novel Rat Models of Non-Erosive Esophagitis (2014) · cites this paper as [10]

    The Demographics section (page unavailable) reports no microbiological difference between patients prescribed PPIs and those not prescribed them. The Real-time PCR analysis likewise found no statistically significant difference by PPI exposure. The paper discusses microbiota changes with reflux-related disease, but does not link acid-suppressing treatment to increased malignancy. (LLM, conf=0.86)

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  • Campylobacter concisus could have a role in EAC, promoting the metaplastic processes in the early stages of cancer through an increase in IL-18 expression and downregulation of TGF-beta1, NF-κB and STAT3 signaling involved in the EAC cascade.

    “This bacterium could have a role in EAC, promoting the metaplastic processes in the early stages of cancer through an increase in the interleukin (IL)-18 expression and downregulation of transforming growth factor beta 1, nuclear factor kappa B (NF-κB) and signal transducer and activator of transcription 3 signaling involved in the EAC cascade[42-44].”
  • In both ERD and BE, a significant enrichment of Campylobacter concisus has been reported.

    “In both these conditions, a significant enrichment of Campylobacter concisus has been reported[42,43].”

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Research works printed but not linked: 4

  1. [6]6. Pei Z, Yang L, Peek R, Levine SM, Pride DT, Blaser MJ. Bacterial biota in reflux oesophagitis and Barrett's oesophagus. World J Gastroenterol 2005; 11: 7277-83.
  2. [12]12. Olson WP, ed. ]Automated Microbial Identification and Quantitation. Buffalo Grove, IL: Interpharm Press, 1996.
  3. [17]17. Istivan TS, Smith SC, Fry BN, Coloe PJ. Characterisation of Campylobacter concisus hemolysins. FEMS Immunol Med Microbiol 2008; 54: 224-35.
  4. [22]22. Zheng J, Meng J, Zhao S, Singh R, Song W. Campylobacter-induced interleukin secretion in polarised human epitelial calles requires Campylobacter secreted cytolethal distending toxin and toll like receptor mediated activation of NF- kappaB. Infect Immun 2008; 76: 4498-508.

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Authors
Blackett, K. L., Siddhi, S. S., Cleary, S., Steed, H., Miller, M. H., Macfarlane, S., Macfarlane, G. T., & Dillon, J. F.
Affiliations
University of Dundee (GB)
Corresponding author
Dillon, J. F.
Venue
Alimentary Pharmacology & Therapeutics
Publisher
Wiley
Published
2013-04-22
Volume
37
Issue
11
Pages
1084-1092
ISSN
  • 0269-2813 (ISSN-L)
  • 1365-2036
OpenAlex
W1967071879
Cited by
211
References
21
Citations by year
2026: 8 · 2025: 13 · 2024: 20 · 2023: 20 · 2022: 17 · 2021: 33 · 2020: 18 · 2019: 18 · 2018: 15 · 2017: 21 · 2016: 13 · 2015: 7 · 2014: 6 · 2013: 1
FWCI
8.86
Type
journal article
Language
en
Open access
Locations
  • Alimentary Pharmacology & Therapeutics (publishedVersion)
  • PubMed (publishedVersion)
  • Discovery Research Portal (University of Dundee) (submittedVersion)
Funders
  • Royal Society
  • Royal Society of Edinburgh
Topics
  • Health Sciences › Medicine › Surgery › Esophageal Cancer Research and Treatment
  • Health Sciences › Medicine › Surgery › Helicobacter pylori-related gastroenterology studies
  • Health Sciences › Medicine › Gastroenterology › Gastroesophageal reflux and treatments
Keywords
gastroesophageal reflux disease, Barrett's esophagus, esophageal adenocarcinoma, Campylobacter concisus, Campylobacter, IL-18, cytokines, carcinogenesis, bacterial colonization
MeSH terms
Adenocarcinoma, Adult, Aged, Aged, 80 and over, Barrett Esophagus, Esophageal Neoplasms, Esophagus, Female, Gastroesophageal Reflux, Humans, Male, Middle Aged, RNA, Messenger, Colony Count, Microbial, Cohort Studies, Case-Control Studies, Cytokines, Bacterial Physiological Phenomena, Biofilms, Coculture Techniques, Metagenome, Young Adult, Real-Time Polymerase Chain Reaction

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