在Talaromyces marneffei感染中的AST升高背后的PANoptosis介导机制
Wudi Wei1, Baili Zhan1, Lixiang Chen2
1Joint Laboratory for Emerging Infectious Diseases in China (Guangxi)-ASEAN, Life Sciences Institute, Guangxi Medical University, Guangxi. China.
塔拉罗米切斯马尔内菲感染通过触发PANoptosis介导的肝细胞死亡和炎症来提高阿斯巴酸氨酸酶 (AST). 在艾滋病毒患者中,AST可帮助诊断和监测塔拉罗米科斯.
科学领域:
- 菌群学
- 免疫学
- 病理学
背景情况:
- Talaromyces marneffei是一种机会性真菌病原体,特别是在东南亚引起严重感染.
- 在T. marneffei感染中,阿斯巴酸氨基转化酶 (AST) 的升高是常见的,但其起源和意义尚不清楚.
- 研究AST的作用可以改善对T. marneffei病变的诊断和理解.
研究的目的:
- 确定AST是否是T. marneffei感染的特定指标.
- 阐明T. marneffei感染中AST升高,组织损伤和细胞死亡的机制.
主要方法:
- 对有或没有T. marneffei感染的HIV/ AIDS患者的临床数据进行了回顾性分析.
- 建立一种小鼠模型来跟踪组织中的AST分布.
- 通过ELISA,qPCR和西式涂抹测试对PANoptosis标志物和炎症细胞因子进行评估.
主要成果:
- 艾滋病毒/T. 与仅艾滋病毒感染的患者相比,同时感染的患者的AST水平显著更高;随着治疗,AST水平下降.
- 在小鼠中,AST在血和器官中增加,肝脏的度最高,脏的度最大.
- 肝脏组织显示上调的PANoptosis标志物和高的促炎细胞因子 (Tnf-α,Il-1β,Il-18),而脏显示抑制的炎症.
结论:
- 感染T. marneffei诱导PAN细胞死亡和肝炎,导致AST升高.
- 在早期诊断和治疗中,AST具有潜在的辅助生物标志物.
- 了解PANoptosis,炎症和AST之间的联系对于治疗T. marneffei感染至关重要.
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