To explore the role of RPN2 in NSCLC, we analyzed the mRNA expression level of RPN2 using quantitative real-time PCR (qRT-PCR) in a cohort study of primary NSCLC tissues (32 cases) and adjacent normal lung tissues (10 cases) from patients with post-operative recurrence (Table 1). This evidence concerns the gene RPN2 and non-small cell lung carcinoma.