To further confirm the involvement of FGF18 in HDAC7-regulated NSCLC progression, we upregulated FGF18 in A549 HDAC7 knockdown cells and downregulated FGF18 in SK-LU-1 HDAC7 overexpressing cells using lentivirus infection. The gene discussed is HDAC7; the disease is non-small cell lung carcinoma.