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树突状细胞 - C 型凝集素受体(DC-SIGN)作为 MERS-CoV 感染的跨膜受体的作用。

The role of DC-SIGN as a trans-receptor in infection by MERS-CoV.

机构信息

Department of Microbiology, Instituto de Investigación Hospital Universitario 12 de Octubre (Imas12), Madrid, Spain.

Departamento de Medicina, Facultad de Medicina, Universidad Complutense, Madrid, Spain.

出版信息

Front Cell Infect Microbiol. 2023 Sep 21;13:1177270. doi: 10.3389/fcimb.2023.1177270. eCollection 2023.

Abstract

DC-SIGN is a C-type lectin expressed in myeloid cells such as immature dendritic cells and macrophages. Through glycan recognition in viral envelope glycoproteins, DC-SIGN has been shown to act as a receptor for a number of viral agents such as HIV, Ebola virus, SARS-CoV, and SARS-CoV-2. Using a system of Vesicular Stomatitis Virus pseudotyped with MERS-CoV spike protein, here, we show that DC-SIGN is partially responsible for MERS-CoV infection of dendritic cells and that DC-SIGN efficiently mediates trans-infection of MERS-CoV from dendritic cells to susceptible cells, indicating a potential role of DC-SIGN in MERS-CoV dissemination and pathogenesis.

摘要

DC-SIGN 是一种 C 型凝集素,在髓样细胞(如未成熟的树突状细胞和巨噬细胞)中表达。通过对病毒包膜糖蛋白中的聚糖识别,DC-SIGN 已被证明是多种病毒病原体(如 HIV、埃博拉病毒、SARS-CoV 和 SARS-CoV-2)的受体。本研究使用水疱性口炎病毒假型化的 MERS-CoV 刺突蛋白系统,表明 DC-SIGN 部分负责树突状细胞感染 MERS-CoV,并且 DC-SIGN 可以有效地介导 MERS-CoV 从树突状细胞到易感细胞的转染,提示 DC-SIGN 在 MERS-CoV 的传播和发病机制中可能具有重要作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b41a/10552186/711805fdc59c/fcimb-13-1177270-g001.jpg

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