SOD2 and non-small cell lung carcinoma: Real-Time qPCR was used to screen the differential expressions of anti-oxidant genes (SOD1, SOD2, SOD3, GPX1, GPX2, GPX3, GPX7, FOXO3 and Nrf2) in NSCLC cells deficient or upregulation of LncRNA-XIST (Figure 5A, 5B).