Oral microbiota and gastrointestinal cancer

Abstract

Yangyang Zhang,1,2 Qiaoli Niu,2 Wenguo Fan,1 Fang Huang,1 Hongwen He11Guanghua School of Stomatology, Institute of Stomatological Research, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, People’s Republic of China; 2The Oral Medicine Clinical Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region, People’s Republic of ChinaAbstract: The microbiota inhabiting the oral cavity is a complex ecosystem and responsible for resisting pathogens, maintaining homeostasis, and modulating the immune system. Some components of the oral microbiota contribute to the etiology of some oral diseases. Accumulating evidence suggests that the human oral microbiota is implicated in the development and progression of gastrointestinal cancer. In this review, we described the current understanding of possible roles and mechanisms of oral microbiota in the gastrointestinal cancers studied to date. The perspectives for oral microbiota as the biomarkers for early detection and new therapeutic targets were also discussed.Keywords: oral microbiota, gastrointestinal cancer, etiology

Keywords

• oral microbiota
• gastrointestinal cancer
• aetiology