FC RECEPTOR(S) INDUCED BY HUMAN CYTOMEGALOVIRUS BIND DIFFERENTIALLY WITH HUMAN IMMUNOGLOBULIN-G SUBCLASSES

FC RECEPTOR(S) INDUCED BY HUMAN CYTOMEGALOVIRUS BIND DIFFERENTIALLY WITH HUMAN IMMUNOGLOBULIN-G SUBCLASSES
复制标题

DOI:
10.1099/0022-1317-67-7-1475
复制
发表时间:
1986-07-01
影响因子:
3.8
通讯作者:
FURUKAWA, T
FURUKAWA, T
中科院分区:
医学3区
文献类型:
--
作者:
MURAYAMA, T;NATSUUMESAKAI, S;FURUKAWA, T

文献摘要

被引文献

相似文献

通过使用受感染的细胞和来自 HCMV 血清阴性健康成年供体的各种亚类的纯化碘化 IgG,在结合测定中研究了通过人巨细胞病毒 (HCMV) 感染在细胞上诱导的 Fc 受体的 IgG 亚类特异性。所有四种人 IgG 亚类均与 HCMV 感染的细胞结合,具有以下相对量值:IgG1.gtoreq。 IgG4 > IgG2 > IgG3。通过使用通过木瓜蛋白酶消化纯化的人 IgG 制备的片段,并使用未标记的亚类蛋白,在抑制测定中进一步分析 Fc 受体的 IgG 亚类特异性。 Fc(而非 Fab 片段)抑制 125I 标记的人 IgG 与 HCMV 感染细胞的结合。讨论了 Fc 受体在 HCMV 感染中的生物学作用。
The IgG subclass specificity of Fc receptor(s) induced on cells by infection with human cytomegalovirus (HCMV) was studied in a binding assay by using infected cells and purified iodinated IgG of various subclasses from HCMV seronegative healthy adult donors. All four human IgG subclasses bound to HCMV-infected cells, with the following relative magnitudes: IgG1 .gtoreq. IgG4 > IgG2 > IgG3. The IgG subclass specificity of the Fc receptor was further analysed in an inhibition assay by using fragments prepared from purified human IgG by papain digestion, and using unlabelled subclass proteins. Fc but not Fab fragments inhibited the binding of 125I-labelled human IgG to HCMV-infected cells. The biological role of the Fc receptor in HCMV infection is discussed.