谁是第一个到达的? 对Candida albicans和Pseudomonas aeruginosa双重生物膜的优先影响
Betsy V Arévalo-Jaimes1,2, Joana Admella1,2, Eduard Torrents3,4
1Bacterial infections and antimicrobial therapies group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Barcelona, Spain.
Communications biology
|February 3, 2025
概括
种类的到来顺序显著改变了Candida albicans和Pseudomonas aeruginosa生物膜的形成,毒性和耐药性. 作为辅助疗法,N-乙半氨酸看起来很有前途,独立于这些优先效应.
科学领域:
- 微生物学 微生物学
- 医学真菌学 医学真菌学
- 传染性疾病 传染性疾病
背景情况:
- 菌和Pseudomonas aeruginosa经常共同感染人类组织和医疗器械.
- 它们的相互作用是复杂的,但优先效应仍未得到充分研究.
- 从历史殖民秩序中产生的优先效应可以塑造微生物群落.
研究的目的:
- 调查C. albicans和P. aeruginosa双种生物膜中优先效应的存在和影响.
- 确定注射顺序如何影响生物膜特性和抗菌素敏感性.
主要方法:
- 使用了C. albicans和P. aeruginosa的临床分离物.
- 通过改变物种接种的顺序来构建双种生物膜.
- 评估生物膜组成,结构,毒性和抗菌素敏感性的变化.
主要成果:
- 种类引入的顺序显著改变了生物膜的组成,结构和毒性.
- 第一个殖民物种在表面殖民方面获得了竞争优势.
- 随后其他物种的殖民化增加了整体生物膜毒性.
- 优先效应减少了C. albicans对P. aeruginosaPAET1对meropenem的保护作用.
结论:
- 优先效应在塑造C. albicans和P. aeruginosa双种生物膜方面发挥着至关重要的作用.
- 了解这些影响对于管理多微生物感染至关重要.
- N-乙半氨酸显示出作为这些感染的辅助疗法的潜力,无论殖民化顺序如何.
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