期刊
BIOENGINEERED
卷 13, 期 3, 页码 6665-6677出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/21655979.2022.2045843
关键词
Non-small cell lung cancer; microbiota; microbial diversity; 16S rRNA gene; veillonella
资金
- Natural Science Foundation of Guangdong Province [2021A151011719]
- Ganzhou Municipal Health Care Committee Municipal Research Program Project [2020-2-47]
This study found that lung microbiota in patients with non-small cell lung cancer differed significantly from those with benign lung disease, with the genera Prevotella and Veillonella being the most strongly associated with non-small cell lung cancer. Veillonella was also found to significantly promote the progression of lung cancer in vivo. Metabolic prediction revealed enrichment of certain pathways that may be involved in the progression of non-small cell lung cancer. These findings suggest that the composition and function of lung microbiota undergo significant changes during the progression of non-small cell lung cancer, and these differing genera may have potential as diagnostic markers and therapeutic targets.
The role of lung microbiota in non-small cell lung cancer remains unclear. We investigated the characteristics and functional roles of lung microbiota in non-small cell lung cancer. Bronchoalveolar lavage fluid samples were obtained from patients with non-small cell lung cancer (n = 46) and with benign lung disease (n = 29). The differences in composition and gene expression in the microbiota between the samples were analyzed using 16s rRNA sequencing. The oncogenic genus (Veillonella) was then evaluated in the progression of lung cancer in C57 BL/6 mice. Compared to benign lung disease, the lung microbiota in non-small cell lung cancer was significantly altered, both in terms of alpha- and beta-diversity. In terms of bacterial composition, the non-small cell lung cancer group was enriched with two Phyla (Firmicutes, Bacteroidetes) and three genera (Streptococcus, Prevotella, Veillonella). Prevotella and Veillonella were most strongly associated with non-small cell lung cancer, and Veillonella significantly promoted the progression of lung cancer in vivo. Moreover, metabolic prediction revealed that ribosomes, biosynthesis of secondary metabolites, and pyrimidine metabolism were among the enriched pathways that may be involved in the progression of non-small cell lung cancer. Overall, results suggest that the progression of non-small cell lung cancer is followed by significant changes in the composition and function of the lung microbiota. These differing genera may be potential diagnostic markers and therapeutic targets.
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