CD40 LIGAND CD40 DEFICIENCY

被引:20
|
作者
CASTIGLI, E [1 ]
FULEIHAN, R [1 ]
RAMESH, N [1 ]
TSITSIKOV, E [1 ]
TSYTSYKOVA, A [1 ]
GEHA, RS [1 ]
机构
[1] CHILDRENS HOSP,DIV IMMUNOL,BOSTON,MA 02115
关键词
CD40; LIGAND; ISOTYPE SWITCHING; HIGMX-1; KNOCKOUT;
D O I
10.1159/000236923
中图分类号
R392 [医学免疫学];
学科分类号
100102 ;
摘要
CD40 is a surface antigen expressed on B cells. The CD40 ligand (CD40L) is expressed on activated T cells. Interaction between CD40 and CD40L is critical for proliferation and isotype switching in the context of a response to a T-cell-dependent antigen. Patients with X-linked hyper-IgM syndrome (HIGMX-1) in their CD40L gene are unable to switch from IgM to IgG, IgA and IgE. Mice with a disrupted CD40 gene fail to undergo isotype switching to T-cell-dependent antigens but respond normally to T-independent antigens.
引用
收藏
页码:37 / 39
页数:3
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