Published in:
Open Access
01-01-2010 | Review
Pathogenesis of Henoch-Schönlein purpura nephritis
Authors:
Keith K. Lau, Hitoshi Suzuki, Jan Novak, Robert J. Wyatt
Published in:
Pediatric Nephrology
|
Issue 1/2010
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Abstract
The severity of renal involvement is the major factor determining the long-term outcome of children with Henoch-Schönlein purpura (HSP) nephritis (HSPN). Approximately 40% children with HSP develop nephritis, usually within 4 to 6 weeks after the initial onset of the typical purpuric rashes. Although the pathogenetic mechanisms are still not fully delineated, several studies suggest that galactose-deficient IgA1 (Gd-IgA1) is recognized by anti-glycan antibodies, leading to the formation of the circulating immune complexes and their mesangial deposition that induce renal injury in HSPN.