1115-SPART调控ITCH定位抑制正黄病毒脱壳研究 episode artwork

EPISODE · Jun 11, 2026 · 19 MIN

1115-SPART调控ITCH定位抑制正黄病毒脱壳研究

from 聊聊Sci

这些研究资料详细介绍了一项关于宿主蛋白 SPART 如何抑制以寨卡病毒 (ZIKV) 为代表的正黄病毒感染的科研发现。通过 CRISPR 激活筛选技术,研究人员证实了 SPART 能够广泛限制此类病毒的复制,且这种抗病毒作用独立于干扰素信号通路。其核心机制在于 SPART 会干扰泛素连接酶 ITCH 的定位,从而阻断病毒衣壳蛋白的降解及病毒基因组在细胞质中的释放,即抑制了病毒的脱壳过程。活体实验进一步表明,SPART 缺失会导致实验小鼠及其胎儿的病毒载量显著升高并加剧发育异常。该发现揭示了宿主防御病毒感染的新路径,并为开发针对正黄病毒的药物提供了潜在靶点。References:Li Q, Yin Y, Liu Y, et al. A CRISPR activation screen identifies SPART as a pan-orthoflavivirus restriction factor[J]. Cell Host & Microbe, 2026.前往小宇宙评论区与主播互动

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1115-SPART调控ITCH定位抑制正黄病毒脱壳研究

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