脑中的葡萄糖诱导了Cryptococcus neoformans在脑膜炎期间对安福特素B的耐受性
Lei Chen1, Xiuyun Tian1, Lanyue Zhang1,2
1State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.
Nature microbiology
|January 15, 2024
概括
大脑葡萄糖会诱导真菌对抗真菌药物的耐受性,例如Cryptococcus neoformans中的安福特里辛B. 这一发现为治疗真菌脑膜炎提供了新的策略,通过向特定的真菌通路来治疗.
科学领域:
- 菌类学 菌类学是指菌类学.
- 传染性疾病 传染性疾病
- 药物发现 药物发现 药物发现
背景情况:
- 抗生素耐受性会影响细菌感染的治疗结果.
- 在真菌疾病中,宿主因子对真菌杀菌剂耐受性的诱导是鲜为人知的.
- 新型菌是真菌脑膜炎的一个重要原因.
研究的目的:
- 研究诱导真菌对抗真菌药物耐受性的宿主衍生因素.
- 为了阐明Cryptococcus neoformans真菌耐受性的机制.
- 确定用于加密球菌脑膜炎的新型治疗策略.
主要方法:
- 对代谢物-药物-真菌相互作用的系统评估.
- 在体内研究使用密码球菌脑膜炎的小鼠模型.
- 对埃尔戈斯特和伊诺西二基胺合成途径的分析.
主要成果:
- 大脑葡萄糖通过Mig1激活器诱导Cryptococcus neoformans对安波素B (AmB) 的耐受性.
- 通过Mig1介导的耐受性抑制了厄戈斯特的合成,并促进了伊诺西酸烯酸胺的产生.
- 使用AmB和一种内醇酸胺合成酶抑制剂 (aureobasidin A) 的联合治疗在小鼠中提高了疗效.
结论:
- 主体葡萄糖是诱导抗真菌耐受性的关键因素.
- 针对Mig1介导的途径和内醇酸胺合成提供了一个有前途的治疗方法.
- 结合的AMB和青素A显示出对加密球菌脑膜炎的优越疗效.
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