苏酸盐有助于Staphylococcus aureus通过反应性氧物种-低毒可诱导因子1α-糖解轴的皮肤感染
Xing Gao1, Min Yu1, Tianfeng Huang1
1Department of Anesthesiology, Northern Jiangsu People's Hospital, Yangzhou, 225009, China.
Microbial pathogenesis
|April 4, 2025
概括
苏酸盐在皮肤感染中起到危险信号的作用,通过通过线粒体ROS和HIF1α促进糖解,增加炎症. 针对细菌的新陈代谢,如糖酸盐的生产,可以防止黄金菌感染.
科学领域:
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
- 代谢工程是代谢工程.
背景情况:
- 由黄金葡萄球菌引起的皮肤和软组织感染 (SSTI) 是常见的,并且难以治疗.
- 病原体和宿主代谢重编程在SSTI病变发生过程中发挥作用.
- 苏酸盐被确定为参与感染相关代谢变化的关键代谢物.
研究的目的:
- 调查酸盐在黄金葡萄球菌引起的SSTI中的作用.
- 阐明酸盐在感染期间影响宿主和病原体代谢的机制.
- 探索针对细菌代谢作为SSTI的治疗策略.
主要方法:
- 删除Staphylococcus aureus sucD基因,以评估细菌酸盐的作用.
- 测量线粒体ROS (mROS) 水平.
- 对HIF1α表达和糖解速率的分析.
- 在受感染的组织中量化S. aureus fumC表达.
主要成果:
- 苏酸盐被确定为一个危险信号,它提高mROS,导致HIF1α表达和糖解的增加,从而导致炎症.
- 删除S. aureus sucD减少了由感染引起的炎症,证实了细菌酸盐的作用.
- 高度表达的S. aureus fumC通过在感染环境中耗尽烟酸来维持高水平的葡萄糖分解.
- 在感染期间,病原体和宿主之间促进了代谢交叉.
结论:
- 酸盐通过线粒体ROS-HIF1α通路调节糖解,有助于SSTI的炎症.
- 细菌衍生苏酸会加剧S. aureus皮肤感染中的炎症.
- 针对细菌新陈代谢,特别是酸盐生产或其下游影响,提供了一种潜在的策略来对抗SSTI并防止代谢重编程.
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