酸丁素受体TIM-1和AXL介导着传播的Powassan病毒进入
Maria Daskou1, Anne K Zaiss1, Arjit Vijey Jeyachandran1
1Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, USA.
iScience
|December 8, 2025
概括
波瓦桑病毒 (POWV) 使用TIM-1和AXL受体进入细胞. 向这些脂胺素受体可能为针对这种神经向性病原体提供新的治疗策略.
科学领域:
- 病毒学 病毒学
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
背景情况:
- 波瓦桑病毒 (POWV) 是一种新兴的传播神经向性病原体,目前尚无治疗方法.
- 了解病毒进入机制对于开发有效的对策至关重要.
研究的目的:
- 调查POWV用于入境的特定细胞受体.
- 为了确定POWV感染的潜在治疗点.
主要方法:
- 利用了细胞培养模型,包括神经元细胞,表达病毒入口受体的293T细胞和iPSC衍生的皮质器官.
- 在野生型C57BL/6小鼠进行了体内研究.
- 使用可溶性TIM-1受体进行中和试验.
主要成果:
- 识别脂氨酸 (PtdSer) 的TIM-1和AXL受体显著促进了POWV感染.
- 在中和试验中,溶性TIM-1有效地阻断了POWV感染.
- 在皮质器官和小鼠大脑组织中,POWV感染的细胞表达PtdSer受体.
结论:
- POWV利用细胞TIM-1和AXL受体进入病毒.
- 在POWV表面的酸素素部分介于与这些受体的结合.
- TIM-1和AXL代表了对抗POWV感染的有希望的治疗点.
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