B cell receptor signaling in human systemic lupus erythematosus
- 1 September 2006
- journal article
- review article
- Published by Ovid Technologies (Wolters Kluwer Health) in Current Opinion in Rheumatology
- Vol. 18 (5), 451-455
- https://doi.org/10.1097/01.bor.0000240353.99808.5f
Abstract
The purpose of this review is to inform the scientific community of the most recent findings surrounding B cell receptor signaling function in human systemic lupus erythematosus and how altered B cell signaling may explain the characteristic hyperactivity of B cells in active disease and contribute to its pathogenesis. B cell receptor signaling is abnormal in patients with active systemic lupus erythematosus as demonstrated by increased calcium flux and global B cell hyperactivity. Altered signaling has been explained by a variety of factors such as defective FcgammaRIIB signaling, decreased expression of the protein tyrosine kinase Lyn, and increased serum levels of B lymphocyte stimulator. The studies reviewed suggest that B cells from systemic lupus erythematosus patients display molecular signaling defects that most likely contribute to pathogenesis of the disease and explain the characteristic hyperactivity of B cells in active disease.Keywords
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