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High renal DC-SIGN + cell density is associated with severe renal lesions and poor prognosis in patients with immunoglobulin A nephropathy



High renal DC-SIGN + cell density is associated with severe renal lesions and poor prognosis in patients with immunoglobulin A nephropathy



Histopathology 2018



In this observational cohort study, we assessed the prognostic value of DC-SIGN+ cells in the pathogenesis and progression of IgA nephropathy (IgAN). A total of 139 adult IgAN patients were enrolled into this study from June 2009 to June 2010. We characterised DC-SIGN+ cells by immunohistochemistry or immunofluorescence in renal biopsy tissue. Correlations between the DC-SIGN, intercellular adhesion molecule 3 (ICAM-3), CD4 and CD8 were evaluated. Patients were classified into the DC-SIGNhigh and DC-SIGNlow groups. Depending on an average of 100-month follow-up, the predictive value of DC-SIGN+ cells in IgAN progression was analysed. DC-SIGN+ cells were found frequently in IgAN kidneys while rarely observed in normal kidneys, and almost all DC-SIGN+ cells expressed MHC-II. We also found that DC-SIGN+ cells were adjacent to ICAM-3-positive CD4+ and CD8+ lymphocytes. The density of DC-SIGN+ cells was positively and linearly correlated with the density of ICAM-3+ cells, CD4+ cells and CD8+ cells in renal biopsy tissues. In the DC-SIGNhigh group, the degree of renal lesion and inflammatory cell infiltration was more severe compared to the DC-SIGNlow group. Patients in the DC-SIGNhigh group also had increased incidences of deteriorating renal function during the follow up compared to patients in the DC-SIGNlow group. DC-SIGN+ cells probably served as a potential contributor to exacerbate local inflammatory response. The density of DC-SIGN+ cells was associated with the severity of renal lesions of the patients. High renal DC-SIGN+ cell density might be used as a predictor of poor prognosis in patients with IgAN.

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Accession: 066441019

Download citation: RISBibTeXText

PMID: 30520136

DOI: 10.1111/his.13803


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