Inflammation status are especially for tumor growth, and microRNAs (miRNAs) confirmed to participate in cancer occurrence and progression. However, the role of miR‐483‐5p and the relation with inflammation have not been elucidated in renal cell cancer (RCC). In this study, we intended to explore miR‐483‐5p expression and the relationship of inflammation status in clear cell renal cell cancer (ccRCC). Using microarray and qRT‐PCR (Quantitative Real‐time Polymerase Chain Reaction), we investigated the miR‐483‐5p expression in plasma and ccRCC cancer tissues. Then, we analyzed the correlation of miR‐483‐5p with clinicopathological parameters and inflammation status in ccRCC. Receiver operator characteristic (ROC) curves analysis was used to analyze the discrimination efficiency of miR‐483‐5p. in vitro experiments explored the biological role of miR‐483‐5p in renal cancer cells. miR‐483‐5p expression was upregulated in plasma of 5 patients with microarray and 12 patients with qRT‐PCR in ccRCC at day 7 postoperatively. In addition, low expression of miR‐483‐5p was found in 58 ccRCC cancer tissues when compared with non‐cancerous tissues. miR‐483‐5p could sufficiently discriminate ccRCC with the area under the curve (AUC) of 0.739 (P < .0001) from normal tissues. Higher expression of miR‐483‐5p was positively related to lower tumor stage and higher relative expression of miR‐483‐5p was inversely related to neutrophil‐to‐lymphocyte ratio (NLR) (P = .03) and lymphocyte‐to‐monocyte ratio (LMR) (P = .026). Overexpression of miR‐483‐5p lead to reverse epithelial‐mesenchymal transition (EMT) process, restrain cell proliferation and metastasis of renal cancer cells. Our findings suggest that miR‐483‐5p expression is negatively correlation with inflammation status and may be a potential plasma biomarker for ccRCC.
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