The characteristics and correlations of vaginal flora in women with cervical lesions.
10.3760/cma.j.cn112152-20211024-00782
- Author:
Ming Xuan ZHANG
1
;
Jia Hao WANG
1
;
Le ZHANG
1
;
Jia Xin YAN
1
;
Cai Hong WU
1
;
Rui Xin PEI
1
;
Yuan Jing LYU
1
;
Li SONG
1
;
Meng CUI
1
;
Ling DING
1
;
Zhi Lian WANG
2
;
Jin Tao WANG
1
Author Information
1. Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China.
2. Department of Obstetrics and Gynecology, Second Hospital of Shanxi Medical University, Taiyuan 030001, China.
- Publication Type:Journal Article
- Keywords:
16S rDNA sequencing;
Cervical lesions;
Co-occurrence network;
Vaginal flora
- MeSH:
Female;
Humans;
Vagina/microbiology*;
Uterine Cervical Neoplasms/genetics*;
Uterine Cervical Dysplasia;
Cervix Uteri;
Lactobacillus/genetics*;
Papillomavirus Infections
- From:
Chinese Journal of Oncology
2023;45(3):253-258
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To explore the characteristics and correlations of vaginal flora in women with cervical lesions. Methods: A total of 132 women, including 41 women diagnosed with normal cervical (NC), 39 patients with low-grade cervical intraepithelial neoplasia (CIN 1), 37 patients with high-grade cervical intraepithelial neoplasia (CIN 2/3) and 15 patients with cervical squamous cell carcinoma (SCC), who came from the gynecological clinic of Second Hospital of Shanxi Medical University during January 2018 to June 2018, were enrolled in this study according to the inclusive and exclusive criteria strictly. The vaginal flora was detected by 16S rDNA sequencing technology. Co-occurrence network analysis was used to investigate the Spearman correlations between different genera of bacteria. Results: The dominant bacteria in NC, CIN 1 and CIN 2/3 groups were Lactobacillus [constituent ratios 79.4% (1 869 598/2 354 098), 63.6% (1 536 466/2 415 100) and 58.3% (1 342 896/2 301 536), respectively], while Peptophilus [20.4% (246 072/1 205 154) ] was the dominant bacteria in SCC group. With the aggravation of cervical lesions, the diversity of vaginal flora gradually increased (Shannon index: F=6.39, P=0.001; Simpson index: F=3.95, P=0.012). During the cervical lesion progress, the ratio of Lactobacillus gradually decreased, the ratio of other anaerobes such as Peptophilus, Sneathia, Prevotella and etc. gradually increased, and the differential bacteria (LDA score >3.5) gradually evolved from Lactobacillus to other anaerobes. The top 10 relative abundance bacteria, spearman correlation coefficient>0.4 and P<0.05 were selected. Co-occurrence network analysis showed that Prevotella, Peptophilus, Porphyrinomonas, Anaerococcus, Sneathia, Atopobium, Gardnerella and Streptococcus were positively correlated in different stages of cervical lesions, while Lactobacillus was negatively correlated with the above anaerobes. It was found that the relationship between vaginal floras in CIN 1 group was the most complex and only Peptophilus was significantly negatively correlated with Lactobacillus in SCC group. Conclusions: The increased diversity and changed correlations between vaginal floras are closely related to cervical lesions. Peptophilus is of great significance in the diagnosis, prediction and early warning of cervical carcinogenesis.
