[The Role of Gut Microbiota in Lung Carcinogenesis and Cancer Immunotherapy].

In recent years, the human microbiota, especially the gut microbiota, has been attracting attention in various fields, and it is one of the topics in the field of oncology. The human microbiota is known to act directly or indirectly on host immunity, and the gut and lung microbiota influence each other through the"gut-lung axis". It has been suggested that dysbiosis, a condition in which the symbiosis of the human microbiota is disrupted, induces lung inflammation and various respiratory diseases, and is also implicated in the immune microenvironment of lung cancer. It is also widely known that the gut microbiota modulates the efficacy of cancer immunotherapy, a major pillar of lung cancer treatment, and many clinical trials targeting the gut microbiota, such as fecal microbiome transplantation and biotics intervention, are currently being conducted. In the future, research on lung carcinogenesis mechanisms and lung cancer treatment focusing on the human microbiota will become increasingly active.