重新设计的STAT3抑制剂pyrimethamine可以控制菌根细菌感染引起的血管通透性和菌根细菌负担
Darryl Jy Han1, Xiangyu Sui2, Sakshi Agarwal1
1A⁎STAR Infectious Diseases Labs (A⁎STAR ID Labs), Agency for Science, Technology and Research (A⁎STAR), 8A Biomedical Grove, Immunos #05-13, Singapore 138648, Singapore.
Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie
|August 13, 2025
概括
结核菌利用感染期间的血管泄漏. 美国食品和药物管理局批准的药物,阿托瓦昆和皮里米他胺,恢复了血管屏障功能,而皮里米他胺显示了对菌根菌的抗生素作用.
科学领域:
- * 免疫学 免疫学
- * 传染病 传染病
- * 血管生物学 血管生物学
背景情况:
- * 病原体感染可以诱导血管病理,影响免疫反应和药物输送.
- * 菌根细菌,包括 Mycobacterium 结核病菌,操纵宿主血管透性以求生存.
- *信号传感器和转录3激活器 (STAT3) 与感染诱导的血管变化有关.
研究的目的:
- * 为了研究STAT3在真菌细菌感染诱导的血管透性中的作用.
- *评估FDA批准的药物在恢复血管屏障功能的有效性.
- * 评估这些药物对感染天生的免疫控制的影响.
主要方法:
- *使用了斑马鱼-Mycobacterium marinum感染模型.
- * 给受感染的斑马鱼施用了阿托瓦昆 (Mepron) 和甲胺 (Daraprim).
- * 评估治疗后的血管透性和真菌细菌负载.
主要成果:
- * 证实了STAT3在调解感染诱导的血管透性方面的关键作用.
- * 证明阿托瓦和甲胺可以恢复血管屏障功能,而不会阻碍先天免疫力.
- *确定了pyrimethamine对M. marinum和M. tuberculosis的额外抗生素作用.
结论:
- *STAT3是神经细菌感染期间血管泄漏的关键媒介.
- *阿托瓦昆和皮里米他胺在感染中恢复血管完整性方面具有前景.
- * 甲胺具有作为治疗真菌菌感染 (包括结核病) 的辅助疗法的潜力,这可能解释了它在HIV阳性个体中的预防性益处.
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