ArticleClinical oral investigations2025
Dynamic changes of dental plaque and saliva microbiota in OSCC progression.
Article in Clinical oral investigations, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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Who cites it
2 citing papers in PubMed.
- Mechanistic insights into the role of oral microbiome in the malignant transformation of oral lichen planus to oral squamous cell carcinoma.Frontiers in oncology · 2026Review
- Bacteriome-based oral dysbiosis index in patients with oral squamous cell carcinoma.Journal of oral microbiology · 2026Article
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Authors and funding
7 authors.
Funding
Abstract
objectivesTo elucidate the changes in microbial composition and genomics in saliva and dental plaque during the progression of Oral Squamous Cell Carcinoma (OSCC), and to identify virulence factors and pathways associated with tumor differentiation in OSCC patients. MATERIALS AND
methodsUsing metagenomic sequencing, 64 saliva and dental plaque samples from OSCC patients at different stages of differentiation were examined.
resultsThe results showed notable differences in the microbial composition and genomic profiles across ecological regions and differentiation degrees. Notably, the relative abundance of specific microbes, such as Porphyromonas gingivalis, Fusobacterium nucleatum, and Haemophilus parainfluenzae, increased in poorly differentiated OSCC. Microbial alpha diversity in dental plaque and saliva correlates with tumor T staging. Dental plaque microbiota shows higher specialization, especially in poorly differentiated tumors. Both microbiota types become more stable with advanced T staging. Genomic analysis reveals increased virulence factors in poorly differentiated stages.Subsequently, functional pathway analysis and tracing of pathogens reveal specific microbial mechanisms in oral cancer pathogenesis. Certain oral pathogens may promote tumorigenesis by secreting factors like GAPDH (glyceraldehyde-3-phosphate dehydrogenase), GspG (a gingipain precursor), and AllS (a lysine-specific gingipain precursor).
conclusionsOSCC progression is associated with altered microbial composition, diversity, and genomic profiles in saliva and dental plaque. Poorly differentiated stages show higher abundance of pathogens and virulence factors, implicating them in tumorigenesis. CLINICAL RELEVANCE: Understanding the microbial and genomic changes in saliva and dental plaque during OSCC progression could aid in developing new diagnostic biomarkers and targeted therapies, potentially enhancing early detection, treatment efficacy, and patient prognosis. Maintaining oral microbiota homeostasis may also help prevent oral cancer.
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Registered trials
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