After treatment with TSA, we found that CSTA expression was significantly up-regulated in six lung cancer cell lines (H23, H2030, H226, H1650, COLO677 and H1975) and slightly increased in three cell lines (H2170, H1299 and H322), whereas no CSTA restoration was detected in H157 and A549 (Figure 3C). This evidence concerns the gene CSTA and lung carcinoma.