Here, we show that miRNA‐126‐3p is significantly underexpressed in 685 cases of lung squamous cell carcinoma (LUSC) as compared to 298 nontumor lung tissues, by combining various methods including in‐house RT‐qPCR, miRNA‐sequencing, and miRNA microarrays. The downregulation of miRNA‐126‐3p may regulate cell cycle signaling by targeting E2F2 and E2F3, and this may result in LUSC carcinogenesis.
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