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乳酸菌和其他阴道乳酸菌之间的宿主独立协同作用
Leonore Vander Donck1, Maline Victor1, Wannes Van Beeck1
1Laboratory for Applied Microbiology and Biotechnology, Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.
Cell reports
|August 20, 2025
概括
健康的阴道微生物群主要由乳酸菌种. 这项研究使用合成群体来表明特定的Lactobacillus物种稳定地同时发生,可能是通过营养交叉养,以告知微生物组治疗方法.
科学领域:
- 微生物学
- 人类微生物组研究
- 合成生物学
背景情况:
- 人体阴道微生物组通常由健康女性的乳酸菌种群主导.
- 了解这些阴道乳球菌的相互作用和稳定性对于开发基于微生物组的疗法至关重要.
- 目前关于驱动乳杆菌占主导地位和物种间相互作用的具体机制存在知识缺口.
研究的目的:
- 使用合成群体 (SynComs) 调查乳杆菌占主导地位的阴道群体的稳定性和动态.
- 在阴道环境中,独立于宿主因素,确定关键的乳杆菌物种共同存在的机制.
- 为研究和治疗开发建立可复制合成阴道乳酸菌群的框架.
主要方法:
- 在上下和自下而上的实验方法中利用了成本高效的合成社区 (SynComs).
- 与Limosilactobacillus物种和Lactobacillus jensenii共同存在的已建立的可繁殖社区.
- 使用元基因组测序数据的组成相关性分析和基因组规模的代谢建模.
主要成果:
- 成功建立了由特定的乳杆菌物种主导的稳定和可再生的合成阴道群体.
- 在不同菌株,宿主因子和接种比率中验证了同时发生的模式,表明了强度.
- 基因组规模的代谢模型预测了氨基酸 (L- 氨酸,L- 氨酸,GABA) 和维生素的交叉食作为关键的相互作用机制.
结论:
- 开发了一个可复制的框架来创建合成的阴道乳杆菌群落.
- 鉴定出营养交叉养是关键的阴道乳杆菌稳定共发生的可能机制.
- 这些发现为推进基于微生物的阴道健康疗法提供了基础.
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