CD2 - A FUNCTIONAL ADHESION MOLECULE ON MURINE B-CELLS, INVOLVED IN INTERLEUKIN-4-INDUCED AGGREGATION

被引:11
作者
ELENSTROMMAGNUSSON, C [1 ]
ALTEVOGT, P [1 ]
SEVERINSON, E [1 ]
机构
[1] GERMAN CANC RES CTR, INST IMMUNOL & GENET, W-6900 HEIDELBERG 1, GERMANY
关键词
CD2; ADHESION MOLECULES; INTERLEUKIN-4; B-CELLS;
D O I
10.1002/eji.1830230418
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
The murine equivalent to CD2, previously known as a T cell marker, is expressed on mouse B cells. The monoclonal anti-CD2 antibody 12-15 was found to induce B cell homotypic adhesion. When treated with F(ab')2 fragments of 12-15, purified, resting B cells aggregate within 2 h of incubation and the response is optimal after 20 h. Anti-CD2-induced aggregation is a dose-related active process, dependent on temperature, metabolic energy and divalent cations. Aggregation is inhibited by two different Fab monomers of anti-CD2, implying that it is the CD2 molecule itself that functions as an adhesion molecule.We also report that interleukin 4-induced B cell homotypic adhesion involves CD2-mediated cell binding, since the antibodies specific for mouse CD2, inhibited interleukin-4-induced cell aggregation.
引用
收藏
页码:888 / 892
页数:5
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