4.5 Article

Porphyromonas gingivalis promotes tumor progression in esophageal squamous cell carcinoma

期刊

CELLULAR ONCOLOGY
卷 44, 期 2, 页码 373-384

出版社

SPRINGER
DOI: 10.1007/s13402-020-00573-x

关键词

Esophageal SCC; P; gingivalis; microbiome; prognosis; IL-6

资金

  1. Chang Gung Memorial Hospital [CMRPG6H0561-2]

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Increasing evidence suggests that the microbiome can influence tumor growth and the tumor microenvironment in gastrointestinal cancers. Porphyromonas gingivalis, a periodontal pathogen, is associated with the development and progression of esophageal squamous cell carcinoma. Targeting P. gingivalis or blocking IL-6 signaling may be a potential strategy to prevent and treat EsoSCC associated with this oral bacterium.
Purpose Increasing evidence indicates that the microbiome may influence tumor growth and modulate the tumor microenvironment of gastrointestinal cancers. However, the role of oral bacteria in the development of esophageal squamous cell carcinoma (EsoSCC) has remained unclear. Herein, we investigated the relationship between the periodontal pathogen Porphyromonas gingivalis and EsoSCC. Methods To identify bacterial biomarkers associated with EsoSCC, we analyzed microbiomes in oral biofilms. The presence of P. gingivalis in esophageal tissues and relationships of P. gingivalis infection with clinicopathologic characteristics in 156 patients with EsoSCC were assessed using immunohistochemistry. The role of P. gingivalis infection in in vitro and in vivo EsoSCC progression was also assessed. Results Microbiota profiles in oral biofilms revealed that P. gingivalis abundance was associated with an increased risk of EsoSCC development. In total, 57% of patients with EsoSCC were found to be infected with P. gingivalis. The presence of P. gingivalis was found to be associated with advanced clinical stages and a poor prognosis. It was also found to be associated with an elevated esophageal cancer incidence in a 4-nitroquinoline 1-oxide-induced mouse model and with an increased xenograft tumor growth. P. gingivalis infection increased interleukin (IL)-6 production and it promoted epithelial-mesenchymal transition and the recruitment of myeloid-derived suppressor cells. Furthermore, inhibited IL-6 signaling attenuated the tumor-promoting effects of P. gingivalis in 4-nitroquinoline 1-oxide-treated mice and xenograft mouse models. Conclusions Our data indicate that P. gingivalis may promote esophageal cancer development and progression. Direct targeting of P. gingivalis or concomitant IL-6 signaling may be a promising strategy to prevent and/or treat EsoSCC associated with P. gingivalis infection.

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