脊髓灰质炎病毒非结构性蛋白3和5与人类脂肪酸合成酶的相互作用
Suthatta Sornprasert1, Wannapa Sornjai1, Duncan R Smith1
1Institute of Molecular Biosciences, Mahidol University, Salaya, Thailand.
PloS one
|March 25, 2025
概括
脂肪酸合成酶 (FASN) 与登革热,寨卡病毒和日本脑炎病毒等Orthoflaviviruses中的关键病毒蛋白相互作用. 这种相互作用,特别是与NS3和FASN的相互作用.
科学领域:
- 病毒学 病毒学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 蚊子传播的orthoflaviviruses是一个全球性的健康挑战,没有可用的治疗方法.
- 病毒感染调节宿主脂质代谢,脂肪酸合成酶 (FASN) 对脂肪酸合成至关重要.
- 之前的研究表明FASN与登革热病毒 (DENV) NS3蛋白之间的相互作用.
研究的目的:
- 研究FASN与DENV,寨卡病毒 (ZIKV) 和日本脑炎病毒 (JEV) 的NS3和NS5蛋白的相互作用.
- 确定FASN在这些Orthoflaviviruses的病毒复制复合体中的作用.
主要方法:
- 共同免疫沉试验被用于检测蛋白质与蛋白质相互作用.
- 间接免疫光测试被用于可视化受感染细胞内的蛋白质的局部化.
- 双链RNA (dsRNA) 被用作病毒复制部位的标记物.
主要成果:
- 意想不到,FASN与DENV,ZIKV和JEV的NS3和NS5蛋白质进行了独立的相互作用.
- 在所有测试病毒中观察到FASN和NS3的局部化.
- 虽然FASN与NS5相互作用,但没有观察到同位化,但FASN确实在复制部位与dsRNA进行同位化.
结论:
- FASN在病毒复制复合体和细胞膜重塑中发挥作用.
- FASN与病毒蛋白NS3和NS5的相互作用,以及其定位到复制部位,突出了FASN作为潜在的治疗点.
- 向FASN可以提供针对各种蚊子传播的黄病毒的广泛治疗策略.
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