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持续性病毒感染中的白细胞细胞毒性:感染马传染性贫血病毒的马匹存在直接细胞毒性但不存在抗体依赖性细胞毒性。

Leukocyte cytotoxicity in a persistent virus infection: presence of direct cytotoxicity but absence of antibody-dependent cellular cytotoxicity in horses infected with equine infectious anemia virus.

作者信息

Fujimiya Y, Perryman L E, Crawford T B

出版信息

Infect Immun. 1979 Jun;24(3):628-36. doi: 10.1128/iai.24.3.628-636.1979.

Abstract

Antibody-dependent cellular cytotoxicity and direct cytotoxicity assays were performed with equine infectious anemia virus-infected target cells, equine leukocytes, and equine anti-equine infectious anemia virus antibody to determine whether these mechanisms play a role in controlling viral replication in equine infectious anemia. Direct cytotoxicity was observed by using peripheral blood mononuclear cells from 7 of 10 infected horses. Antibody-dependent cellular cytotoxicity was not observed. The antibody-dependent cellular cytotoxicity reaction in horses was then studied by using sheep erythrocytes and trinitrophenylated sheep erythrocytes as target cells. Lysis of these target cells was mediated by neutrophils, monocytes, and lymphocytes. The reaction was activated by antibody of the immunoglobulin G class but not by immunoglobulin G(T). Furthermore, immunoglobulin G(T) efficiently inhibited immunoglobulin G in this function.

摘要

使用感染马传染性贫血病毒的靶细胞、马白细胞和马抗马传染性贫血病毒抗体进行抗体依赖性细胞毒性和直接细胞毒性试验,以确定这些机制是否在控制马传染性贫血病毒复制中发挥作用。在10匹受感染马中的7匹中,通过使用外周血单个核细胞观察到了直接细胞毒性。未观察到抗体依赖性细胞毒性。然后,以绵羊红细胞和三硝基苯化绵羊红细胞作为靶细胞,研究了马的抗体依赖性细胞毒性反应。这些靶细胞的裂解由中性粒细胞、单核细胞和淋巴细胞介导。该反应由免疫球蛋白G类抗体激活,但不由免疫球蛋白G(T)激活。此外,免疫球蛋白G(T)在该功能中有效抑制免疫球蛋白G。

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