The histopathological changes in the tumor tissue were observed, the immunohistochemistry of Bcl-2-associated X protein (Bax) and B-cell lymphoma/leukemia-2 (Bcl-2) was analyzed, and the expression of cysteine aspartic acid-specific protease-3 (Caspase-3), Survivin, Bax, Bcl-2, BH3-interacting domain death agonist (Bid), and poly ADP-ribose polymerase (PARP) genes and proteins was detected by RT-PCR and Western blotting, respectively. The gene discussed is BCL2; the disease is neoplasm.