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Peculiarities of phenotypes of patients with pyelo- and glomerulonephritis by HLA distribution analysis

V. Driianska, O. Petrina, M. Velychko, F. Haisenyuk, G. Drannik
Ukrainian Journal of Nephrology and Dialysis pp 11-18; doi:10.31450/ukrjnd.4(60).2018.02

Abstract: Studies devoted to the role of human leucocyte antigens (HLA) in pathogenesis of chronic kidney disease (CKD) have demonstrated the associative links of the HLA antigens, which stipulate the relative and attributive risks of some autoimmune diseases, with immune disorder and a high production of pro-inflammatory cytokines. The aim of our study was to determine the peculiarities of phenotypes of CKD patients according to the distribution of HLA-A, B and DR antigens and to conduct their comparative analysis in patients with pyelonephritis (PN) and glomerulonephritis (GN). Methods: The distribution of HLA-A, B, DR antigens in 384 CKD patients (120 with PN and 264 with GN) was analyzed. HLA antigens were defined using a standard microlymphocytotoxic test on the Terasakiґs planchette with special panels of anti-HLA serums (20 antigens of locus A, 31 – B and 9 – DR). The control group consisted of 350 healthy donors. The HLA antigen frequencies in normal and diseased subjects were compared taking each antigen separately, using χ2 test. The etiologic fraction (attributive risk s > 0,1) was counted using the formula: s = x - y/I- y, where x is frequency of antigen in patients and y is frequency in healthy. The s reading was considered reliable when it exceeded 0.1. Results. The causal role (σ > 0,1) was determined for А10, А11; В14, В16 for PN; antigens-protectors - А2, В21, В35, В40. For CGN, NS the relative risk is high (RR > 2) at the presence of HLA-A23, А24, А28; B8, В38, В41, В44; DR1, DR4, DRw52 in phenotype, the causal role in etiopathology (σ>0.1) is indicated for A24,А28; B8; DR1, DR4, DRw52; the disease protectors are B12 and B16. Conclusion. Conclusion. The features of the HLA-phenotype of patients with pyelo- and glomerulonephritis were shown. It allowed to establish the interconnectedness of the antigens of the histocompatibility complex with the risk of kidney diseases developing, which could help to personificate of the treatment and predicte of the course of the disease.
Keywords: Antigens / chronic kidney disease / HLA / frequency / Phenotypes of Patients / pyelo and glomerulonephritis / patients with pyelo

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