宫颈发育不良妇女阴道微生物群和阴道代谢物的特征。

IF 4.6 2区 医学 Q2 IMMUNOLOGY
Frontiers in Cellular and Infection Microbiology Pub Date : 2024-10-10 eCollection Date: 2024-01-01 DOI:10.3389/fcimb.2024.1457216
Tiantian Yu, Shan Gao, Fen Jin, Bingbing Yan, Wendong Wang, Zhongmin Wang
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引用次数: 0

摘要

导言:新的证据表明,阴道微生物群与宫颈癌密切相关。然而,人们对宫颈发育不良妇女的阴道微生物群、阴道代谢物和宫颈病变进展之间的关系知之甚少:为了了解不同级别宫颈病变和癌症妇女的阴道微生物群特征和阴道代谢物的变化,本研究招募了正常或宫颈发育不良的个体,并将其分为健康对照组(HC)、低级别鳞状上皮内病变组(LSIL)、高级别鳞状上皮内病变组(HSIL)和宫颈癌组(CC)。采集阴道分泌物样本进行 16S rRNA 基因测序、基于液相色谱-质谱联用技术(LC-MS)的代谢组学分析和综合分析:结果表明,CC 组的细菌丰富度和多样性高于其他三组。此外,乳酸杆菌与细菌多样性和细菌代谢功能呈负相关,且随着宫颈病变和癌症程度的增加而增加。代谢组学分析表明,这些代谢途径中富含不同的代谢物,包括色氨酸代谢、视黄醇代谢、谷胱甘肽代谢、丙氨酸、天冬氨酸和谷氨酸代谢以及柠檬酸循环(TCA 循环)。相关分析表明,CC 组乳酸杆菌数量减少与 CC 组代谢物减少之间存在正相关。内氏乳杆菌与 nadB 和 kynU 基因均呈负相关,而 CC 组中这两种基因的预测丰度显著较高。线性回归模型显示,阴道微生物群和阴道代谢物的组合对宫颈癌具有良好的诊断效果:讨论:我们的研究结果表明,宫颈发育不良妇女的阴道微生物群和阴道代谢物存在明显差异。讨论:我们的研究结果表明,宫颈发育不良妇女的阴道微生物群和阴道代谢物存在明显差异,细菌和代谢物的具体改变与宫颈病变和癌症程度密切相关,这表明阴道微生物群和阴道代谢物有可能成为预防宫颈癌的可调节因素和治疗靶点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Characteristics of the vaginal microbiota and vaginal metabolites in women with cervical dysplasia.

Introduction: Emerging evidence suggests that the vaginal microbiota is closely associated with cervical cancer. However, little is known about the relationships among the vaginal microbiota, vaginal metabolites, and cervical lesion progression in women undergoing cervical dysplasia.

Methods: In this study, to understand vaginal microbiota signatures and vaginal metabolite changes in women with cervical lesions of different grades and cancer, individuals with normal or cervical dysplasia were recruited and divided into healthy controls (HC) group, low-grade squamous intraepithelial lesions (LSIL) group, high-grade squamous intraepithelial lesions (HSIL) group, and cervical cancer (CC) group. Vaginal secretion samples were collected for 16S rRNA gene sequencing, liquid chromatography coupled with mass spectrometry (LC-MS)-based metabolomics, and integrated analysis.

Results: The results demonstrated that bacterial richness and diversity were greater in the CC group than the other three groups. Additionally, Lactobacillus was found to be negatively associated with bacterial diversity and bacterial metabolic functions, which increased with the degree of cervical lesions and cancer. Metabolomic analysis revealed that distinct metabolites were enriched in these metabolite pathways, including tryptophan metabolism, retinol metabolism, glutathione metabolism, alanine, aspartate, and glutamate metabolism, as well as citrate cycle (TCA cycle). Correlation analysis revealed positive associations between CC group-decreased Lactobacillus abundance and CC group-decreased metabolites. Lactobacillus iners was both negative to nadB and kynU genes, the predicted abundance of which was significantly higher in the CC group. The linear regression model showed that the combination of the vaginal microbiota and vaginal metabolites has good diagnostic performance for cervical cancer.

Discussion: Our results indicated a clear difference in the vaginal microbiota and vaginal metabolites of women with cervical dysplasia. Specifically altered bacteria and metabolites were closely associated with the degree of cervical lesions and cancer, indicating the potential of the vaginal microbiota and vaginal metabolites as modifiable factors and therapeutic targets for preventing cervical cancer.

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来源期刊
CiteScore
7.90
自引率
7.00%
发文量
1817
审稿时长
14 weeks
期刊介绍: Frontiers in Cellular and Infection Microbiology is a leading specialty journal, publishing rigorously peer-reviewed research across all pathogenic microorganisms and their interaction with their hosts. Chief Editor Yousef Abu Kwaik, University of Louisville is supported by an outstanding Editorial Board of international experts. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers, academics, clinicians and the public worldwide. Frontiers in Cellular and Infection Microbiology includes research on bacteria, fungi, parasites, viruses, endosymbionts, prions and all microbial pathogens as well as the microbiota and its effect on health and disease in various hosts. The research approaches include molecular microbiology, cellular microbiology, gene regulation, proteomics, signal transduction, pathogenic evolution, genomics, structural biology, and virulence factors as well as model hosts. Areas of research to counteract infectious agents by the host include the host innate and adaptive immune responses as well as metabolic restrictions to various pathogenic microorganisms, vaccine design and development against various pathogenic microorganisms, and the mechanisms of antibiotic resistance and its countermeasures.
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