CD40 LIGAND CD40 DEFICIENCY
CD40 LIGAND CD40 DEFICIENCY
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DOI:
10.1159/000236923
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发表时间:
1995-05-01
影响因子:
2.8
通讯作者:
GEHA, RS
中科院分区:
文献类型:
--
作者:
CASTIGLI, E;FULEIHAN, R;GEHA, RS
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.