Fig. 1

lncRNA SNHG12 was highly expressed in NSCLC tissues and cells and was associated with the prognosis and clinicopathologic features of patients with NSCLC. A lncRNA SNHG12 expression in NSCLC was predicted via the starBase database; B lncRNA SNHG12 expression in 65 pairs of NSCLC tissues and adjacent normal tissues was measured via RT-qPCR; C lncRNA SNHG12 expression in bronchial epithelial cells and NSCLC cell lines was measured via RT-qPCR; D association between lncRNA SNHG12 expression and prognosis of patients with NSCLC was predicted via the GEPIA database; E association between lncRNA SNHG12 expression and the prognosis of 65 patients with NSCLC was analyzed via Kaplan–Meier survivorship curve. N = 65, experiments were performed three times, **P < 0.01. Data in C are represented as mean ± standard deviation. Pairwise comparisons in B were analyzed using paired t-test and in E were analyzed using log-rank test, and multigroup comparisons in C were analyzed using Tukey’s multiple comparison test