" /> Granulomatosis with polyangiitis - CISMeF





Preferred Label : Granulomatosis with polyangiitis;

Symbol : GPA;

CISMeF acronym : GPA; WG;

Type : Phenotype or locus, molecular basis unknown;

Alternative titles and symbols : WG; Wegener granulomatosis;

Description : Wegener granulomatosis (WG) is a systemic disease with a complex genetic background. It is characterized by necrotizing granulomatous inflammation of the upper and lower respiratory tract, glomerulonephritis, vasculitis, and the presence of antineutrophil cytoplasmatic autoantibodies (ANCAs) in patient sera. These ANCAs are antibodies to a defined target antigen, proteinase-3 (PR3, PRTN3; 177020), that is present within primary azurophil granules of neutrophils (PMNs) and lysozymes of monocytes. On cytokine priming of PMNs, PR3 translocates to the cell surface, where PR3-ANCAs can interact with their antigens and activate PMNs. PMNs from patients with active WG express PR3 on their surface, produce respiratory burst, and release proteolytic enzymes after activation with PR3-ANCAs. The consequence is a self-sustaining inflammatory process (Jagiello et al., 2004).;

Prefixed ID : %608710;

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01/05/2025


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