Article
Hyper immunoglobulin M syndrome due to CD40 deficiency: clinical, molecular, and immunological features.
Immunological reviews - 1 Feb 2005
Lougaris Vassilios, Badolato Raffaele, Ferrari Simona, Plebani Alessandro
Abstract excerpt
CD40 is a member of the tumor necrosis factor receptor family, which is expressed by a variety of cells including B cells, macrophages, dendritic cells, and other nonimmune cell types. CD40 activation is critical for B-cell proliferation, immunoglobulin (Ig)-isotype switching, and germinal center formation. In physiological conditions, the activation of CD40 occurs by binding to its natural ligand, CD154, which...
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