The Fig. 7 depicts that the expression of Caspase-3 was extremely decreased (P < 0.001), Caspase-9 and Bax were down-regulated significantly (P < 0.01), while the Bcl-2 was rose in squamous cell carcinoma tissues, with statistically significant difference (P < 0.01). The gene discussed is CASP3; the disease is squamous cell carcinoma.