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Published:
Mar 15, 2021Keywords:
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Main Article Content
MiR-384 is associated with renal damage in lupus nephritis via regulation of TET3 expression
Abstract
Purpose: To investigate the correlations between miR-384 expression and renal damage in lupus nephritis (LN).
Methods: Lupus nephritis and normal tissues were collected during surgery. The relative miR-384 expression was evaluated by extracting RNA and performing quantitative real time PCR (qRT-PCR) assays. Expression of ten-eleven translocation (TET3) mRNA and protein were measured by qRT-PCR and western blotting, respectively. The 24-h urine protein, serum complement C3, and serum creatinine were determined using commercial enzyme-linked immunosorbent assay (ELISA) kits. TargetScan and luciferase assays were used to validate the binding site for miR-384 and its target mRNA. Relationships among miR-384, TET3, and renal damage were analyzed by Spearman rank-order correlation coefficients.
Results: MiR-384 expression increased in LN tissues and was positively correlated with the activity index (AI) and chronicity index of LN, whereas miR-384 expression and serum complement C3 were negatively correlated. Positive correlations were observed between miR-384 expression and 24-h urine protein, serum creatinine, and systemic lupus erythematosus disease AI. TargetScan and luciferase
assays indicated that the TET3 3′-UTR was the direct target of miR-384. MiR-384 upregulation inhibited TET3 mRNA and protein expression, and was negatively associated with renal damage in LN.
Conclusion: MiR-384 upregulation contributes to renal damage in LN by targeting the 3′-UTR of TET3 mRNA, suggesting that miR-384 is a potential biomarker and therapeutic target in LN.
Keywords: MiR-384, Renal damage, Lupus nephritis, Ten-eleven translocation, TET3
