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受体结合位点缺失的口蹄疫病毒可保护牛免受口蹄疫感染。

Receptor binding site-deleted foot-and-mouth disease (FMD) virus protects cattle from FMD.

作者信息

McKenna T S, Lubroth J, Rieder E, Baxt B, Mason P W

机构信息

Plum Island Animal Disease Center, U.S. Department of Agriculture, Greenport, New York 11944, USA.

出版信息

J Virol. 1995 Sep;69(9):5787-90. doi: 10.1128/JVI.69.9.5787-5790.1995.

Abstract

Binding of foot-and-mouth disease virus (FMDV) to cells requires an arginine-glycine-aspartic acid (RGD) sequence in the capsid protein VP1. We have genetically engineered an FMDV in which these three amino acids have been deleted, producing a virus particle which is unable to bind to cells. Cattle vaccinated with these receptor binding site-deleted virions were protected from disease when challenged with a virulent virus, demonstrating that these RGD-deleted viruses could serve as the basis for foot-and-mouth disease vaccines safer than those currently in use. This strategy may prove useful in the development of vaccines for other viral diseases.

摘要

口蹄疫病毒(FMDV)与细胞的结合需要衣壳蛋白VP1中的精氨酸-甘氨酸-天冬氨酸(RGD)序列。我们通过基因工程改造了一种FMDV,其中这三个氨基酸已被删除,产生了一种无法与细胞结合的病毒颗粒。用这些缺失受体结合位点的病毒粒子接种疫苗的牛在受到强毒病毒攻击时可免受疾病侵害,这表明这些缺失RGD的病毒可作为比目前使用的疫苗更安全的口蹄疫疫苗的基础。该策略可能在其他病毒性疾病疫苗的开发中证明是有用的。

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