Tianjin Medical Journal ›› 2025, Vol. 53 ›› Issue (12): 1295-1303.doi: 10.11958/20252316

• Evidence-Based Medicnine • Previous Articles     Next Articles

Meta-analysis of oral microbiota changes in patients with oral squamous cell carcinoma

CAO Qixuan1(), YANG Yue1,2, SHEN Jun3,()   

  1. 1 Medical School of Nankai University, Tianjin 300070, China
    2 Tianjin Stomatological Hospital
    3 Tianjin Medical University Cancer Institute & Hospital
  • Received:2025-07-01 Revised:2025-10-10 Published:2025-12-15 Online:2025-12-08
  • Contact: E-mail:13902143866@163.com

Abstract:

Objective To assess changes in composition of oral microbiota in oral squamous cell carcinoma (OSCC) by systematic review and Meta-analysis. Methods Computer searches were conducted in databases such as PubMed, Embase, Cochrane Library, Web of Science, Wanfang Data and CNKI to gather research on the oral microbiome of OSCC. The search covered the period from the establishment of databases to March 25 2025. Literature was screened and data extracted according to literature inclusion and exclusion criteria, and Meta-analysis of changes in the abundance of bacterial genera in included studies was performed using Stata 17.0. Results A total of 23 studies involving 1 718 participants were included. These studies were divided into two categories: (1) case-control studies (n=14) and (2) cancer tissue versus paired paracancerous tissue (n=9). At the genus level, Fusobacterium was increased in abundance in OSCC patients (SMD=0.52,95%CI:0.39-0.65,P<0.001) and cancer tissue (SMD=0.89,95%CI:0.55-1.24,P<0.001). Porphyromonas was increased abundance in OSCC patients (SMD=0.17,95%CI:0.02-0.33,P=0.030) and cancer tissue (SMD=0.31,95%CI:0.10-0.53,P=0.005). Streptococcus was decreased in OSCC (SMD=-0.43,95%CI:-0.85--0.01,P=0.044) and cancer tissue (SMD=-0.66,95%CI:-0.96--0.37,P<0.001). Conclusion Fusobacterium and Porphyromonas increase and Streptococcus decrease in OSCC patients and cancer tissue, suggesting that oral flora dysbiosis is associated with the development of OSCC.

Key words: mouth neoplasms, carcinoma, squamous cell, microbiota, Meta-analysis

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