Abstract
Although diabetic nephropathy (DN) is induced by a complicate interplay of multiple factors, the underlying mechanisms remain poorly characterized, even the treatment. Herein, we show that both of DN patients and STZ-induced type 1 diabetic rat exhibit the reduction both of urinary and circulating miR-2467-3p. We identify a negative correlation between miR-2467-3p levels and renal dysfunction. Administration of miR-2467-3p prevents diabetes-induced renal dysfunction and represses renal fibrosis in STZ-induced type 1 diabetic rats. Conversely, anti-miR-2467 overexpression exacerbates renal dysfunction and fibrosis in STZ-induced rats. In diabetic condition, the reduction of miR-2467-3p promotes expression of Twist1, inducing epithelial-to-mesenchymal transition (EMT), resulting in renal fibrosis and kidney dysfunction. Together, our study presents miR-2467/Twist1/EMT as a regulatory axis of renal dysfunction in DN.
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