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埃弗林B1和B2介导雪松树病毒进入埃及水果蝙蝠细胞

Lea Lenhard¹, Martin Müller², Sandra Diederich³

¹Institute of Immunology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, 17493 Greifswald, Germany.

|April 26, 2025

概括

雪松病毒 (CedV) 使用埃及罗塞特蝙蝠 (ERB) 的乙B1和B2受体进入细胞. 埃弗林A5也起着轻微的作用,突出了潜在的蝙蝠水库中关键的病毒进入机制.

科学领域:

病毒学病毒学
细胞生物学细胞生物学
动物传播疾病动物传播疾病

背景情况:

雪松病毒 (CedV) 是一种与Hendra和Nipah病毒相关的henipavirus,通过以素受体感染人类细胞.
塞德维病毒进入蝙蝠细胞的进入机制,是尼病毒的潜在储库,在很大程度上是未知的.

研究的目的:

为了识别CedV用于进入埃及鲁塞特蝙蝠 (ERB) 细胞的特定以弗林受体.
为了阐明ERB以弗林受体在CedV细胞进入中的作用.

主要方法:

生成的中国仓鼠卵巢 (CHO) -K1细胞表达单个ERB以弗林 (A2,A5,B1,B2).
使用基于晶状病毒的伪病毒系统和表达光记者 (rCedV-nTurbo635) 的复合CedV.
在ERB上皮细胞中进行了高含量显微镜,流动细胞计和以弗林倒置实验.

主要成果:

确定ERB乙B1和B2是调解CedV伪病毒进入的主要受体.
埃弗林A5也促进了rCedV-nTurbo635的进入,尽管在较小程度上.
镇压乙B1和B2显著阻碍rCedV-nTurbo635进入ERB细胞,而ERB乙A2没有介导进入.

结论:

CedV主要利用ERB乙B1和B2受体,有效地进入ERB细胞.
在CedV进入过程中,ERB以林A5可能起到次要的作用.
了解这些相互作用对于评估蝙蝠种群中海尼帕病毒传播动态至关重要.

关键词:

雪松树病毒病毒罗塞图斯 (Rousettus aegyptiacus) 是一个古埃及的植物.埃弗林斯 (Ephrins) 是一种药物.这种病毒是hennipavirus.接收器接收器接收器接收器病毒入口病毒入口.

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