ArticlePeerJ2025
Oropharyngeal microbiome dysbiosis in esophageal squamous cell carcinoma: taxonomic shifts, metabolic reprogramming, and geographic disparities in a high-incidence cohort.
Article in PeerJ, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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11 authors.
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Abstract
Background: Esophageal squamous cell carcinoma (ESCC) is a leading cause of cancer mortality globally, with pronounced geographic disparities in incidence. Emerging evidence links oral microbiome dysbiosis to ESCC pathogenesis, yet comprehensive insights into microbial diversity, taxonomic shifts, and functional alterations in high-risk populations remain limited. Methods: Using 16S rRNA amplicon sequencing, we compared the oral microbiome of ESCC patients and healthy controls from a high-incidence region in Northwest China. Alpha and beta diversity metrics, taxonomic composition, and predicted functional pathways were analyzed to identify microbial signatures associated with ESCC. Results: ESCC patients exhibited significantly elevated microbial richness (observed amplicon sequence variants (ASVs), Chao1, ACE; Conclusion: This study uncovers unique oral microbial signatures in ESCC patients from a high-incidence region, characterized by increased richness, taxon-specific shifts, and metabolic reprogramming favoring amino acid catabolism. These findings highlight the potential of microbial biomarkers for ESCC detection and provide mechanistic insights into microbiome-driven carcinogenesis. The geographic specificity of the cohort underscores the urgency of tailored interventions in high-risk populations and advances our understanding of microbial contributions to esophageal cancer.
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