ArticleKidney international reports2025
The Utility of Myeloperoxidase Immunostaining to Characterize Immune Deposits in Patients With Crescentic Glomerulonephritis.
Article in Kidney international reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Dual MPO-ANCA and PLA2R positivity in crescentic glomerulonephritis with MPO-associated membranous nephropathy: a case report with pathogenic insights.CEN case reports · 2026Article
- Antigens in membranous nephropathy: discovery and clinical implications.Nature reviews. Nephrology · 2025Review
- Utility of Myeloperoxidase Immunostaining in Diagnosing Antineutrophil Cytoplasmic Autoantibody-Associated Crescentic Glomerulonephritis With Immune Complex Deposits.Kidney international reports · 2025Article
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4 authors.
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Abstract
Introduction: Pauci-immune crescentic glomerulonephritis (GN) is nearly synonymous with antineutrophil cytoplasmic antibody (ANCA)-associated disease. Cases with immune complex deposition create a diagnostic conundrum leading to suspicion for concurrent infection or autoimmune disease. Small case series have demonstrated myeloperoxidase (MPO) in the immune deposits in patients with membranous nephropathy (MN) and ANCA-associated disease. However, the specificity of MPO staining to characterize immune deposits in crescentic GN has not been thoroughly evaluated. Methods: We performed MPO immunostaining of 143 kidney biopsies, including pauci-immune crescentic GN ( Results: In patients with dual crescentic GN and MN without PLA2R, 84.2% were MPO-IHC positive. Crescentic GN with mesangial IgG was MPO-IHC positive in 40%. Crescentic GN related to hydralazine exposure was MPO-IHC positive in 72.7%. All cases with pauci-immune crescentic GN, endocarditis-associated cases, and MN cases with known antigens were negative for MPO. Conclusion: Our study demonstrated that glomerular immune deposits in patients with crescentic GN with positive MPO serology demonstrated MPO positivity in the pattern of immune deposits in the majority of cases. Glomerular immune complexes in patients with MPO-positive crescentic GN therefore represent MPO-IgG immune complexes and should be thought of as one disease rather than a second disease process.
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