Distinct intratumoral microbiome of young-onset and average-onset colorectal cancer.
16S
Colorectal cancer
Dysbiosis
Early-onset
Microbiome
Young-onset
Journal
EBioMedicine
ISSN: 2352-3964
Titre abrégé: EBioMedicine
Pays: Netherlands
ID NLM: 101647039
Informations de publication
Date de publication:
01 Feb 2024
01 Feb 2024
Historique:
received:
06
04
2023
revised:
09
01
2024
accepted:
11
01
2024
medline:
3
2
2024
pubmed:
3
2
2024
entrez:
2
2
2024
Statut:
aheadofprint
Résumé
The unexplained rise of young-onset CRC (yoCRC, age <50 years) is of concern. Evidence suggests that microbial dysbiosis may be a contributing factor, but the tumor microbial profile of yoCRC in comparison to average-onset CRC (aoCRC, age >60) has not been fully investigated. 16S rRNA amplicon sequencing was performed in tumor and paired adjacent non-malignant fresh frozen tissue specimens prospectively collected from 136 yoCRC and 140 aoCRC patients. Phyloseq, microbiomeSeq, metagenomeSeq, and NetComi were utilized for bioinformatics analysis. Statistical tests included Fisher's exact test, ANOVA, PERMANOVA with Bonferroni correction, linear regression, and Wilcoxon test. p-value <0.05 was considered statistically significant. yoCRC patients were more likely to have left-sided (72.8 vs. 54.3%), rectal (36.7% vs. 25%), and stage IV (28% vs. 15%) tumors. yoCRC tumors had significantly higher microbial alpha diversity (p = 1.5 × 10 Our study provides a comprehensive understanding of the microbial perturbations in yoCRC tumors. We identify microbial candidates that may highlight a distinct pathogenesis of yoCRC and serve as preventive, diagnostic, and therapeutic targets. Sondra and Stephen Hardis Chair in Oncology Research (A.A.K.).
Sections du résumé
BACKGROUND
BACKGROUND
The unexplained rise of young-onset CRC (yoCRC, age <50 years) is of concern. Evidence suggests that microbial dysbiosis may be a contributing factor, but the tumor microbial profile of yoCRC in comparison to average-onset CRC (aoCRC, age >60) has not been fully investigated.
METHODS
METHODS
16S rRNA amplicon sequencing was performed in tumor and paired adjacent non-malignant fresh frozen tissue specimens prospectively collected from 136 yoCRC and 140 aoCRC patients. Phyloseq, microbiomeSeq, metagenomeSeq, and NetComi were utilized for bioinformatics analysis. Statistical tests included Fisher's exact test, ANOVA, PERMANOVA with Bonferroni correction, linear regression, and Wilcoxon test. p-value <0.05 was considered statistically significant.
FINDINGS
RESULTS
yoCRC patients were more likely to have left-sided (72.8 vs. 54.3%), rectal (36.7% vs. 25%), and stage IV (28% vs. 15%) tumors. yoCRC tumors had significantly higher microbial alpha diversity (p = 1.5 × 10
INTERPRETATION
CONCLUSIONS
Our study provides a comprehensive understanding of the microbial perturbations in yoCRC tumors. We identify microbial candidates that may highlight a distinct pathogenesis of yoCRC and serve as preventive, diagnostic, and therapeutic targets.
FUNDING
BACKGROUND
Sondra and Stephen Hardis Chair in Oncology Research (A.A.K.).
Identifiants
pubmed: 38306898
pii: S2352-3964(24)00015-X
doi: 10.1016/j.ebiom.2024.104980
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
104980Informations de copyright
Copyright © 2024 The Author(s). Published by Elsevier B.V. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of interests S.V.B., N.S., K.G.N., S.L.S., and S.X. report no conflicts of interest. S.K. reports consulting and advisory roles in Exelixis, Tempus, Guardant Health, and SeaGen. D.L. reports consulting and advisory roles in Olympus Medical Systems and research funding from Merck. A.A.K. reports consulting honoraria from Janssen, Bayer, BMS, Sanofi, Pfizer, and Anthos.