Abstract
CD40 is a surface antigen expressed on B cells. The C'D40 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-celldependent antigen. Patients with X-linkcd hyper-IgM syndrome (HIGMX-1) in their CD40L gene are unable to switch from IgM to lgG, IgA and IgE. Mice with a disrupted CD40 gene fail to undergo isotype switching to T-cell-dcpcndent antigens but respond normally to T-independent antigens.
Original language | English (US) |
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Pages (from-to) | 37-39 |
Number of pages | 3 |
Journal | International archives of allergy and immunology |
Volume | 107 |
Issue number | 1-3 |
DOIs | |
State | Published - 1995 |
Keywords
- CD40
- CD40 knockout
- CD40 ligand
- HIGMX-1
- Isotype switching
ASJC Scopus subject areas
- Immunology and Allergy
- Immunology