Anti-phospholipase A2 receptor antibody as a prognostic marker in patients with primary membranous nephropathy
- PMID: 30254849
- PMCID: PMC6147192
- DOI: 10.23876/j.krcp.2018.37.3.248
Anti-phospholipase A2 receptor antibody as a prognostic marker in patients with primary membranous nephropathy
Erratum in
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Erratum: Anti-phospholipase A2 receptor antibody as a prognostic marker in patients with primary membranous nephropathy [Volume 37, Issue 3, September 2018, Pages 248-256].Kidney Res Clin Pract. 2018 Dec;37(4):426. doi: 10.23876/j.krcp.2018.37.3.248.corr. Epub 2018 Dec 31. Kidney Res Clin Pract. 2018. PMID: 30619703 Free PMC article.
Abstract
Background: Phospholipase A2 receptor (PLA2R) has been identified as a major autoantigen in primary membranous nephropathy (MN). We evaluated the association between anti-PLA2R antibodies and clinical outcome in Korean patients with primary MN.
Methods: A total of 66 patients with biopsy-proven MN were included. Serum level of anti-PLA2R antibodies was measured by enzyme-linked immunosorbent assay. Biochemical parameters were estimated initially and at follow-up.
Results: Anti-PLA2R antibodies were detected in 52.1% and 27.8% of patients with primary and secondary MN, respectively. Forty-eight patients with primary MN were grouped based on presence or absence of anti-PLA2R antibodies. Proteinuria was more severe in anti-PLA2R-positive patients than in anti-PLA2R-negative patients (urine protein/creatinine ratio 7.922 ± 3.985 g/g vs. 4.318 ± 3.304 g/g, P = 0.001), and anti-PLA2R antibody level was positively correlated with proteinuria. The incidence of chronic kidney disease stage ≥ 3 was higher in anti-PLA2R-positive patients compared with anti-PLA2R-negative patients (P = 0.004). The probabilities of spontaneous remission were higher in anti-PLA2R-negative patients compared with anti-PLA2R-positive patients (P < 0.001). Multivariate analysis demonstrated that anti-PLA2R antibodies are an independent risk factor for developing chronic kidney disease stage ≥ 3 and for not reaching spontaneous remission.
Conclusion: Detection of anti-PLA2R antibodies at diagnosis in patients with primary MN can predict prognosis and guide treatment decisions.
Keywords: Membranous nephropathy; Phospholipase A2 receptors; Prognosis.
Conflict of interest statement
Conflicts of interest All authors have no conflicts of interest to declare.
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References
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- Ponticelli C. Membranous nephropathy. J Nephrol. 2007;20:268–287. - PubMed
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