In MHCC97‐H (Figure 2B) and HepG2 (Figure 2D) cells, the combination treatment of VV‐IL‐24 and luteolin upregulated IL‐24 gene expression more than VV‐IL‐24 or luteolin alone, suggesting that luteolin could increase VV‐IL‐24 expression in liver cancer cells. Here, IL24 is linked to liver cancer.