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Updated: Jun 7, 2025

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在甲类动物中通过外体介导的病毒核酸呈现暴露了从新的角度来看天生的免疫力

Yi Gong^1,2, Hang Hu¹, Xinshan Zhao¹

¹Guangdong Provincial Key Laboratory of Marine Biology, Shantou University, Shantou, China.

Journal of virology

|November 15, 2024

概括

病毒DNA组件被感染的泥细胞包装到外体中,诱导邻近细胞的亡,以防止病毒传播. 这揭示了无脊椎动物的新型外体介导抗病毒防御机制.

科学领域:

这是天生的免疫力.
细胞生物学细胞生物学
病毒学病毒学

背景情况:

亡对于消除病原体和宿主-病原体相互作用至关重要.
从病毒感染的细胞传递给未感染的细胞的亡信号的机制尚不清楚.
外基因组参与细胞间的通信.

研究的目的:

调查病毒感染期间由外体细胞介导的亡信号转导的机制.
通过感染细胞分泌的外体内识别病毒成分.
为了阐明这些病毒成分如何影响受体细胞中的亡.

主要方法:

从感染WSSV的泥血细胞中对外体隔离和表征.
在外体体中检测病毒核酸 (wsv277) 和蛋白质表达.
转录组,蛋白质组,ChIP-seq和共免疫沉 (coIP) 分析.
功能性测试,以评估受体细胞中的亡诱导.

主要成果:

被WSSV感染的血细胞分泌的外体含有病毒核酸wsv277.7.
外基因组将wsv277传递给受体细胞,从而导致具有代酶活性的病毒蛋白表达.
wsv277与CBF和EF-1α相互作用,激活转录和翻译的apoptotic基因.
这一过程会诱导周围细胞的亡,抑制病毒的传播.

结论:

病毒的DNA组件可以被封装成外体,并在细胞之间传播.
外体细胞介导着亡信号传导,代表了一种新的宿主抗病毒策略.
这项研究强调了动物间外体介导病毒免疫的多样性和普遍性.

关键词:

在CBF和EF-1α.一个apoptotic信号转导的转导.外基因组是外基因组中的一个.这是先天免疫力.泥大是什么意思泥大是什么意思 wsv2777 在线观看

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