Abstract
The gut microbiome plays an important role in the immune system and has attracted attention as a biomarker of several diseases, including cancer. In this study, we examined the relationship between the gut microbiome and lung cancer progression. Female never-smokers diagnosed with lung adenocarcinoma were consecutively enrolled between May 2018 and August 2019, and fecal samples were collected. Principal coordinate analyses were performed using Bray-Curtis distance matrices to investigate the effects of clinical variables (age, body mass index, Tumor-Node-Metastasis stage, T category, N category, M category, primary tumor size, performance status, and EGFR mutation status) on the gut microbial community. A total of 37 patients were enrolled. T category and primary tumor size were significantly correlated with the gut microbial community (p=0.018 and 0.041, respectively). This study identified the gut microbiome as a promising biomarker of lung cancer progression.
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