Resumen
Metastasis causes most cancer-related deaths in colorectal carcinoma (CRC), and microbiome markers may have prognostic value. We hypothesized that primary tumor microbiomes predict distant metastases. We analyzed 5-year metastasis-free survival (MFS) in a retrospective cohort of 900 ORIEN CRC tumor microbiomes (RNAseq). ORIEN findings were validated on an independent cohort using 16S rDNA sequencing and pathobiont-specific qPCR. Microbiome alpha diversity was higher in primary tumors than metastases and positively correlated with metastasis risk. Microbiome beta diversity distinguished primary vs. metastasis and predicted 5-year MFS. High primary tumor abundance of B. fragilis and low F. nucleatum were associated with short MFS. Enterobacteriaceae, including E. coli, were enriched in metastases. qPCR identified increased enterotoxigenic B. fragilis and pks + E. coli detection in CRC metastasizers. Microbial co-occurrence analysis identified a 3-species clique that predicts metastasis (OR 1.9 [1.4–2.6]). Results suggest that primary tumor microbiomes and specific pathobionts are precision markers for metastasis risk.
| Idioma original | English |
|---|---|
| Número de artículo | 405 |
| Publicación | npj Precision Oncology |
| Volumen | 9 |
| N.º | 1 |
| DOI | |
| Estado | Published - dic 2025 |
Nota bibliográfica
Publisher Copyright:© The Author(s) 2025.
Financiación
We gratefully acknowledge the University of Iowa Holden Comprehensive Cancer Center’s Microbiome Core for their essential support in providing microbiome sequencing services. The Histology Research Laboratory at Iowa provided histology services. This work was supported by the Holden Comprehensive Cancer Center ACS-IRG from the American Cancer Society (DEB). DEB was supported by the NIH, K08AI159619. RK was supported by the American Cancer Society (IRG-21-141-46-IRG) and the National Cancer Institute (R25CA273964). DS is supported by the National Institute on Aging (K01AG070310), the American Lung Association (1046611), and the American Cancer Society (RSG-23-1023205).
| Financiadores | Número del financiador |
|---|---|
| American Cancer Society-Michigan Cancer Research Fund | |
| Division of Environmental Biology | |
| Iowa Environmental Mesonet at Iowa State University | |
| National Childhood Cancer Registry – National Cancer Institute | R25CA273964 |
| National Institutes of Health (NIH) | K08AI159619, IRG-21-141-46-IRG |
| National Institute on Aging | K01AG070310 |
| American Lung Association | 1046611, RSG-23-1023205 |
ODS de las Naciones Unidas
Este resultado contribuye a los siguientes Objetivos de Desarrollo Sostenible
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Good health and well being
ASJC Scopus subject areas
- Oncology
- Cancer Research
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