波尔纳病病毒1诱导铁,导致致命的脑炎
Qing Tan1,2, Hongli Yang1,3, Yong He1,2
1NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Journal of medical virology
|October 7, 2024
概括
波尔纳疾病病毒1 (BoDV-1) 感染引发铁亡,这是一种细胞死亡途径,涉及铁过载和脂质过氧化. 在模型中,抑制铁或全方位-蛋白酶体系统可以缓解波尔纳病病毒1型脑炎 (BVE).
科学领域:
- 病毒学 病毒学
- 细胞生物学 细胞生物学
- 神经科学是一个神经科学.
背景情况:
- 波纳疾病病毒1 (BoDV-1) 在人类中引起致命的脑炎.
- 铁,一种编程细胞死亡的形式,与病毒感染有关.
- 铁化在BoDV-1脑炎 (BVE) 发病过程中的作用尚不清楚.
研究的目的:
- 为了调查BODV-1感染和铁亡之间的联系.
- 为了阐明铁化在BVE病变发生中的作用.
- 探索针对BVE中的铁亡的治疗策略.
主要方法:
- 主要鼠皮神经元,人类微质细胞和斯普拉格-道利大鼠被用作模型.
- 评估了铁灭的标志物 (铁过载,脂质过氧化,ROS).
- 基因和蛋白质表达 (qRT-PCR,西部斑) 分析了Nrf2/HO-1/SLC7a11/GPX4和PTGS2/PGE2通路.
- 测试了抑制铁亡和无素-蛋白酶系统.
主要成果:
- 博德V-1感染诱导铁灭症,其特征是铁过载,活性氧物种增加和线粒体损伤.
- 博德维-1通过Nrf2无化和降解抑制了Nrf2/HO-1/SLC7a11/GPX4抗氧化途径.
- 激活的PTGS2/PGE2信号和释放的脂质过氧化产品有助于BVE.
- 抑制铁或无素-蛋白酶系统可以降低BVE的严重程度.
结论:
- 在神经细胞中,BoDV-1感染会诱导铁亡.
- 抑制Nrf2/HO-1/SLC7a11/GPX4通路是BODV-1诱导的铁死的一个关键机制.
- 铁化是BVE中关键的致病机制.
- 向铁和无素-蛋白酶系统为BVE提供了潜在的治疗途径.
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