NEAT1 and hepatocellular carcinoma: To further determine whether NEAT1 is reduced during stress‐induced senescence in hepatoma cells, both HepG2 and Huh7 cells were cultured in a serum‐free medium (starvation) for 48 h or H2O2 (100 μM) for 24 h or DOXO (100 nM) for 24 h to induce reactive oxygen species (ROS) stress.