• Medicine · Sep 2024

    Analysis of the correlation between gut microbiome imbalance and the development of endometrial cancer based on metagenomics.

    • Wenying Xing, Jie Yu, Shihong Cui, Ling Liu, Yunxiao Zhi, Ting Zhang, and Junjie Zhou.
    • Department of Gynaecology and Obstetrics, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
    • Medicine (Baltimore). 2024 Sep 13; 103 (37): e39596e39596.

    AbstractEndometrial cancer (EC) is the most prevalent gynecologic malignancy, with a higher risk in obese women, suggesting the potential involvement of gut microbiota in the progression of EC. However, there is no direct evidence of a connection between EC and the human gut microbiota. Using metagenomic sequencing, we investigated the relationship between gut microbiome imbalance and cancer development in patients with EC. In this prospective case-control study, we included 15 patients with EC based on endometrial biopsy in the case group and 15 women admitted to the hospital for female pelvic floor issues during the same time who did not have endometrial lesions from January 2023 to June 2023 in control group. The microbiota structure of EC cases and controls without benign or malignant endometrial lesions during the same time period was analyzed using metagenomic sequencing technology. We employed Alpha diversity analysis to reflect the richness and diversity of microbial communities. Statistical algorithm Bray-Curtis was utilized to calculate pairwise distances between samples, obtaining a beta diversity distance matrix. Subsequently, hierarchical clustering analysis was conducted based on the distance matrix. The results showed that the composition of bacterial colonies in both groups was dominated by Firmicutes, which had a higher proportion in the control group, followed by Bacteroidetes in the control group and Proteobacteria and Bacteroidetes in the case group. The abundance of Klebsiella (P = .02) was significantly higher, and the abundance of Alistipes (P = .04), Anearobutyricum (P = .01), and bacteria in Firmicutes such as Oscillospira and Catenibacterium was markedly lower in the case group than in the control group. These results demonstrated conclusively that a gut microbiome imbalance was associated with the development of EC.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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