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RSS FeedsMolecules, Vol. 26, Pages 5659: Bacterial Diversity Correlates with Overall Survival in Cancers of the Head and Neck, Liver, and Stomach (Molecules)

 
 

17 september 2021 18:28:26

 
Molecules, Vol. 26, Pages 5659: Bacterial Diversity Correlates with Overall Survival in Cancers of the Head and Neck, Liver, and Stomach (Molecules)
 


One in five cancers is attributed to infectious agents, and the extent of the impact on the initiation, progression, and disease outcomes may be underestimated. Infection-associated cancers are commonly attributed to viral, and to a lesser extent, parasitic and bacterial etiologies. There is growing evidence that microbial community variation rather than a single agent can influence cancer development, progression, response to therapy, and outcome. We evaluated microbial sequences from a subset of infection-associated cancers—namely, head and neck squamous cell carcinoma (HNSC), liver hepatocellular carcinoma (LIHC), and stomach adenocarcinoma (STAD) from The Cancer Genome Atlas (TCGA). A total of 470 paired tumor and adjacent normal samples were analyzed. In STAD, concurrent presence of EBV and Selemonas sputigena with a high diversity index were associated with poorer survival (HR: 2.23, 95% CI 1.26–3.94, p = 0.006 and HR: 2.31, 95%CI 1.1–4.9, p = 0.03, respectively). In LIHC, lower microbial diversity was associated with poorer overall survival (HR: 2.57, 95%CI: 1.2, 5.5, p = 0.14). Bacterial within-sample diversity correlates with overall survival in infection-associated cancers in a subset of TCGA cohorts.


 
150 viewsCategory: Biochemistry, Chemistry, Molecular Biology
 
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