Inhibition of the B cell by CD22: A requirement for Lyn

被引:163
|
作者
Smith, KGC
Tarlinton, DM
Doody, GM
Hibbs, ML
Fearon, DT [1 ]
机构
[1] Univ Cambridge, Sch Clin Med, Dept Med, Wellcome Trust Immunol Unit, Cambridge CB2 2SP, England
[2] Royal Melbourne Hosp, Walter & Eliza Hall Inst Med Res, Parkville, Vic 3050, Australia
[3] Royal Melbourne Hosp, Ludwig Inst Canc Res, Tumor Biol Branch, Parkville, Vic 3050, Australia
来源
JOURNAL OF EXPERIMENTAL MEDICINE | 1998年 / 187卷 / 05期
基金
英国惠康基金;
关键词
D O I
10.1084/jem.187.5.807
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Mice in which the Lyn, Cd22, or Shp-1 gene has been disrupted have hyperactive B cells and autoantibodies. We find that in the absence of Lyn, the ability of CD22 to become tyrosine phosphorylated after Ligation of mIg, to recruit SHP-1, and to suppress mig-induced elevation of intracellular [Ca2+] is lost. Therefore, Lyn is required for the SHP-1-mediated B cell suppressive function of CD22, accounting for similarities in the phenotypes of these mice.
引用
收藏
页码:807 / 811
页数:5
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