Cited by 511Gut microbiota and healthMycorrhizal Fungi and Plant InteractionsAntifungal resistance and susceptibility

Enteric fungal microbiota dysbiosis and ecological alterations in colorectal cancer

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Coker, Olabisi Oluwabukola, Nakatsu, Geicho, Dai, Rudin Zhenwei, Wu, William Ka Kei, Wong, Sunny Hei, Ng, Siew Chien, Chan, Francis Ka Leung, Sung, Joseph Jao Yiu +1 more·2019·Gut

Abstract

OBJECTIVES: Bacteriome and virome alterations are associated with colorectal cancer (CRC). Nevertheless, the gut fungal microbiota in CRC remains largely unexplored. We aimed to characterise enteric mycobiome in CRC. DESIGN: Faecal shotgun metagenomic sequences of 184 patients with CRC, 197 patients with adenoma and 204 control subjects from Hong Kong were analysed (discovery cohort: 73 patients with CRC and 92 control subjects; validation cohort: 111 patients with CRC, 197 patients with adenoma and 112 controls from Hong Kong). CRC-associated fungal markers and ecological changes were also validated in additional independent cohorts of 90 patients with CRC, 42 patients with adenoma and 66 control subjects of published repository sequences from Germany and France. Assignment of taxonomies was performed by exact k-mer alignment against an integrated microbial reference genome database. RESULTS: Principal component analysis revealed separate clusters for CRC and control (p<0.0001), with distinct mycobiomes in early-stage and late-stage CRC (p=0.0048). Basidiomycota:Ascomycota ratio was higher in CRC (p=0.0042), with increase in Malasseziomycetes (p<0.0001) and decrease in Saccharomycetes (p<0.0001) and Pneumocystidomycetes (p=0.0017). Abundances of 14 fungal biomarkers distinguished CRC from controls with an area under the receiver-operating characteristic curve (AUC) of 0.93 and validated AUCs of 0.82 and 0.74 in independent Chinese cohort V1 and European cohort V2, respectively. Further ecological analysis revealed higher numbers of co-occurring fungal intrakingdom and co-exclusive bacterial-fungal correlations in CRC (p<0.0001). Moreover, co-occurrence interactions between fungi and bacteria, mostly contributed by fungal Ascomycota and bacterial Proteobacteria in control, were reverted to co-exclusive interplay in CRC (p=0.00045). CONCLUSIONS: This study revealed CRC-associated mycobiome dysbiosis characterised by altered fungal composition and ecology, signifying that the gut mycobiome might play a role in CRC.

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Authors
Coker, O. O., Nakatsu, G., Dai, R. Z., Wu, W. K. K., Wong, S. H., Ng, S. C., Chan, F. K. L., Sung, J. J. Y., & Yu, J.
Affiliations
Chinese University of Hong Kong (HK)
Corresponding author
Yu, Jun
Venue
Gut
Publisher
BMJ
Published
2018-11-24
Volume
68
Issue
4
Pages
654-662
ISSN
  • 0017-5749 (ISSN-L)
  • 1468-3288
OpenAlex
W2903428492
Cited by
511
References
45
Citations by year
2026: 49 · 2025: 54 · 2024: 84 · 2023: 108 · 2022: 77 · 2021: 70 · 2020: 44 · 2019: 23 · 2017: 1
FWCI
12.18
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • Gut (publishedVersion, cc-by-nc)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • HMRF Hong Kong
  • Shenzhen Virtual University Park Support Scheme to CUHK Shenzhen Research Institute
  • Grant from Faculty of Medicine CUHK on Microbiota Research, RGC-GRF Hong Kong
  • Vice-Chancellor’s Discretionary Fund CUHK
  • Vice-Chancellor’s Discretionary Fund CUHK and CUHK direct grant
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Mycorrhizal Fungi and Plant Interactions
  • Health Sciences › Medicine › Infectious Diseases › Antifungal resistance and susceptibility
Keywords
colorectal cancer, gut mycobiome, fungal dysbiosis, colorectal adenoma, fungal biomarkers, Basidiomycota, Ascomycota, Proteobacteria
MeSH terms
Gastrointestinal Microbiome, Mycobiome, Aged, Female, Hong Kong, Humans, Male, Middle Aged, Biomarkers, Tumor, Colorectal Neoplasms, Case-Control Studies, Principal Component Analysis, Dysbiosis

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