1306-病原体效应蛋白组:人类生命过程的系统性功能发现 episode artwork

EPISODE · Jul 20, 2026 · 26 MIN

1306-病原体效应蛋白组:人类生命过程的系统性功能发现

from 聊聊Sci

研究人员开发了一个名为 eORFeome 的大规模功能基因组学平台,其中包含来自病毒、细菌和寄生虫的约 4,000 个病原体效应蛋白开放阅读框。通过对人类细胞中的五条核心信号通路进行高通量筛选,该研究系统地识别出了数百种能够扰动免疫反应和细胞稳态的效应功能。研究重点展示了几个重要发现:HHV6A 的 U14 蛋白通过诱导 p53 蛋白聚集并阻断其 DNA 结合来抑制肿瘤抑制功能;HHV7 的 U21 蛋白具有双重功能,既能引导 MHC-I 进入溶酶体降解,也能诱导 STING 降解以逃避先天免疫。此外,研究还发现腺病毒的 13.6K 蛋白是一种新进化的 TAP 抑制剂,能够阻断抗原呈递。这项工作为理解病原体如何操纵宿主生物学提供了全新的框架,并为开发新型治疗方法和细胞研究工具奠定了基础。References:Pachano T, Leng H, Dugied G, et al. Systematic discovery of pathogen effector functions across human pathogens and pathways[J]. Cell, 2025.前往小宇宙评论区与主播互动

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1306-病原体效应蛋白组:人类生命过程的系统性功能发现

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