ArticlePediatric nephrology (Berlin, Germany)2026
Correlation between urinary soluble CD163 and endocapillary proliferation and fibrinoid necrosis in IgA vasculitis with nephritis.
Article in Pediatric nephrology (Berlin, Germany), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundCD163 is a surface marker expressed by M2c macrophages. This study aims to evaluate the level of urinary soluble CD163 (u-sCD163) in children with IgA vasculitis with nephritis (IgAVN) and its potential diagnostic value.
methodsU-sCD163 was analyzed in 73 children with IgAVN who underwent a kidney biopsy, 37 children with IgA nephropathy and 50 normal controls. CD163 expression was analyzed by immunohistochemistry. Correlation analyses and inter-group comparison were performed to assess the association between u-sCD163 levels and clinicopathological features of IgAVN. The comparison of u-sCD163 levels before and after treatment was conducted.
resultsThe level of u-sCD163 was significantly higher in children with IgAVN than healthy controls. Compared with grade II IgAVN subjects, u-sCD163 level was significantly elevated in grade III-IV subjects. There was no difference in u-sCD163 level between IgAVN and IgA nephropathy groups. There was no difference in serum CD163 level among different groups. In the IgAVN group, abundant CD163-positive cells were observed in glomeruli showing endocapillary proliferation, especially in areas of thrombosis and fibrinoid necrosis. In contrast, CD163-positive cells were scarce within cellular crescents, but increased in fibrocellular crescents. Levels of u-sCD163 showed a significant positive correlation with proportions of endocapillary proliferation, and moderately correlated with proteinuria, CD163 score of glomerular area, and weakly correlated with proportions of cellular crescents, D-dimer and fibrin degradation products (FDP). The level of u-sCD163 decreased significantly after treatment.
conclusionsU-sCD163 emerges as a promising marker associated with endocapillary proliferation and coagulation in pediatric patients with IgAVN.
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