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MicroRNAs (miRNAs) have emerged as critical regulators in cancer progression. miR‑613 has been reported as a tumor suppressor gene in many types of human cancers. However, the function of miR‑613 in renal cell carcinoma (RCC) remains unclear. In the present study, the authors aimed to detect the expression of miR‑613 and its function in RCC cell lines. miR‑613 was reported to be significantly downregulated RCC cell lines. Functional analyses demonstrated that overexpression of miR‑613 significantly decreased RCC cell proliferation and invasion. Bioinformatics analysis showed that Frizzled7 (FZD7) was a predicted target of miR‑613, which was verified by dual‑luciferase reporter assay, reverse transcription quantitative‑polymerase chain reaction and western blot analysis. Restoration of FZD7 significantly reversed the suppressive effects of miR‑613 on RCC cell proliferation and invasion. Taken together, the results of the present study indicated that miR‑613 functions as a tumor suppressor that inhibits RCC cell proliferation and invasion by targeting and inhibiting FZD7, providing novel insight into RCC pathogenesis and a potential therapeutic target for RCC.

MicroRNA-613 inhibits proliferation and invasion of renal cell carcinoma cells through targeting FZD7