Mec1-Rad53信号调节DNA损伤诱导的自和病原性 在Candida albicans中
Jiawen Du1, Yixuan Dong1, Wenjie Zuo1
1Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Department of Microbiology, College of Life Sciences, Nankai University, 94 Weijin Road, Nankai District, Tianjin 300071, China.
Journal of fungi (Basel, Switzerland)
|December 22, 2023
概括
Mec1-Rad53通路特别调节了Candida albicans中DNA损伤诱导的自,影响其致病性. 这种信号传递对于与自相关的蛋白质招募和自细胞形成至关重要,影响真菌的生存和毒性.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 菌类学 菌类学是指菌类学.
背景情况:
- 在 *Candida albicans* 中,DNA 损伤触发了 DNA 损伤反应和自.
- 在DNA损伤反应和DNA损伤诱导的自之间确切的关系尚未完全理解.
- 在DNA损伤引起的自和病原性中,Mec1-Rad53信号的作用需要进一步研究.
研究的目的:
- 为了比较自相关 (Atg) 蛋白在DNA损伤诱导的自与传统的宏观自中的功能.
- 研究Mec1-Rad53信号在调节DNA损伤引起的自的作用.
- 探索Mec1-Rad53信号对*C. albicans*病原性的影响.
主要方法:
- 在DNA损伤诱导和宏观自中对与自相关的蛋白质进行比较分析.
- 在 *C. albicans* 菌株中研究 Mec1-Rad53 信号通路,其中有 Mec1 或 Rad53.53 的缺失.
- 评估自体的形成和蛋白质招募到胞聚集点 (PAS).
- 在小鼠模型中评估真菌病原性和对巨细胞杀死的易感性.
主要成果:
- 核心Atg蛋白对于这两种自类型都至关重要,而Atg17的功能略有不同.
- Mec1-Rad53信号专门调节DNA损伤诱导的自,而不是一般的宏观自.
- 删除Mec1或Rad53会抑制Atg1和Atg13的注入PAS,并影响自体的形成.
- DNA损伤不会诱导线粒或ER自.
- 通过调节Atg1,Atg13,Mec1和Rad53蛋白水平,确定了PSp2和Dcp2是DNA损伤诱导的自的调节者.
- 删除Mec1或Rad53显著减少了*C. albicans*的系统感染,脏殖民,并增加了对巨杀死的易感性.
结论:
- Mec1-Rad53信号传递是*C. albicans*中DNA损伤诱导的自的特定调节器.
- 这一途径对真菌的致病性至关重要,影响病毒性和对宿主免疫反应的抵抗力.
- 了解这种途径为抗真菌策略提供了潜在的目标.
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