宫菌组改变了跨越宫上皮屏障的转录和染色体可访问性签名
Lauren Anton1, Ana G Cristancho2, Briana Ferguson3
1Center for Women's Health and Reproductive Medicine, Department of Obstetrics and Gynecology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA. lanton@pennmedicine.upenn.edu.
Microbiome
|November 26, 2025
概括
宫和阴道微生物群对妇女健康产生影响. 阴道菌 (Gardnerella vaginalis) 触发免疫反应和细胞死亡,而乳杆菌 (Lactobacillus crispatus) 在宫细胞中修改表观基因路径,提供治疗见解.
科学领域:
- 生殖生物学 生殖生物学
- 微生物组研究的研究.
- 主体-微生物相互作用
背景情况:
- 宫性阴道微生物群对妇女健康至关重要,乳酸菌种表示最佳状态.
- 失生症的特征是乳酸菌减少和无气性菌增加,如Gardnerella vaginalis,与不良的生殖结果有关.
- 在下生殖道中宿主-微生物相互作用的分子机制尚不清楚.
研究的目的:
- 为了研究宫上阴道上皮质宿主微生物相互作用的分子机制.
- 描述宫上皮细胞对普通阴道细菌的转录反应.
- 通过调节微生物群来探索潜在的生殖健康治疗策略.
主要方法:
- 用RNA测序来分析基因表达.
- 宫上皮细胞暴露于阴道细菌的培养超体.
- 使用ATAC测序来评估染色体的可访问性.
主要成果:
- 果菌 (Gardnerella vaginalis) 培养的超级生物调节了与先天免疫激活和细胞死亡相关的基因.
- 乳杆菌crispatus培养超级生物诱导的转录性变化表明表观基因组建模在外宫细胞.
- ATAC测序证实了L. crispatus的表观基因组修饰,显示了染色质可访问性降低.
结论:
- 这些发现阐明了下生殖道中宿主-微生物相互作用.
- 调节宫和阴道微生物组为改善生殖健康提供了潜在的治疗途径.
- 了解这些相互作用是开发女性生殖福祉新策略的关键.
相关概念视频
Surface Membrane Barriers
2.6K
The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
2.6K
Vagina
27.8K
The vaginal canal is a tubular structure averaging about 10 cm in length that acts as the entryway to the female reproductive system and the passageway for menstrual flow and childbirth. The interior walls of the vagina exhibit concentric folds called rugae and are topped by an area known as the fornix, which connects with the protruding cervical portion of the uterus. This canal is comprised of an external fibrous layer, a muscular middle layer, and an inner lining with mucosal rugae, which...
27.8K
Factors Affecting the Risk of Infection
13.2K
The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
13.2K


