To further confirm the relationship between ILF2 and the expression of pro-apoptotic and anti-apoptotic proteins, we analyzed the levels of pro-apoptotic proteins such as Bcl-2-associated X protein (Bax), Bcl-2 antagonist/killer 1 (Bak), and Bcl-2 related ovarian killer (Bok); and anti-apoptotic proteins such as Bcl-2 and cIAP1 by Western blot in cancer cells infected with Lenti-ILF2 and Lenti-NC or transfected with ILF2 siRNA (siILF2) and siRNA negative control (siNC). The gene discussed is ILF2; the disease is cancer.