Porphyromonas gingivalis promotes the motility of esophageal squamous cell carcinoma by activating NF-κB signaling pathway

• DOI: 10.1016/j.micinf.2019.01.005
• Publication Date: 2019-02-11T23:53:56Z
• Authors: Fan Meng; Ruifeng Li; Liyu Ma; Lifang Liu; Xiaorong Lai; Dongyang Yang; Junmin Wei; Dong Ma; Zijun Li
• Keywords: Male; 0303 health sciences; Esophageal Neoplasms; Carcinogenesis; NF-kappa B; Transcription Factor RelA; Middle Aged; 3. Good health; Gene Expression Regulation, Neoplastic; 03 medical and health sciences; Cell Movement; Cell Line, Tumor; Host-Pathogen Interactions; Humans; Female; Esophageal Squamous Cell Carcinoma; Saliva; Porphyromonas gingivalis; Aged; Cell Proliferation; Signal Transduction

Esophageal carcinoma, with a increasing incidence, is one of the most aggressive carcinomas in gastrointestinal tract. Epidemiologic studies demonstrate an association of oral pathogens with multiple diseases, including rheumatoid arthritis, cardiovascular diseases, diabetes, and gastrointestinal malignancies. Nevertheless, a causal relationship between oral pathogens and esophageal squamous cell carcinoma (ESCC) has not been elucidated. Here, we found that Porphyromonas was significantly enriched in the saliva of patients with ESCC, compared with that in normal human. In vitro studies showed that Porphyromonas gingivalis (P. gingivalis) promoted the proliferation and motility of ESCC cells, as evidenced by up regulated expression of key molecules implicated in NF-κB signaling pathway. These findings, for the first time, demonstrated a role of oral pathogens in inducing ESCC tumorigenesis and metastasis, which might involve regulation of NF-κB signaling pathway.