GROUP-SPECIFIC CYTOLYTIC ANTIBODY DIRECTED AGAINST THE MAJOR GLYCOPROTEIN (GP70) OF MURINE LEUKEMIA VIRUSES IN SERUM OF MICE WITH DORMANT FLV INFECTIONS

被引:8
作者
CALLAHAN, RM [1 ]
MARX, PA [1 ]
WHEELOCK, EF [1 ]
机构
[1] THOMAS JEFFERSON UNIV,DEPT MICROBIOL,PHILADELPHIA,PA 19107
关键词
D O I
10.1016/0042-6822(79)90372-6
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Serum of mice with dormant Friend leukemia virus (FLV) infections contains cytolytic activity against FLC-745 cells, a Friend erythroleukemic cell line. FLC-745 cells express only one cell surface FLV-coded antigen, shown by competition radioimmunoassay experiments to be FLV virion gp70. AKR virus blocks completely the cytolytic activity of serum but cannot block the precipitation of gp70 from detergent-disrupted 125I-labeled cells. These results indicate that the FLC-745 cytolytic antibody in serum from mice with dormant FLV infections is directed against virion gp70 and is group specific. Furthermore, this serum contains a type specific gp70 antibody which is not lytic for FLC-745 cells. © 1979.
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页码:55 / 67
页数:13
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