HDAC5 and gastric cancer: In addition, the relative luciferase activity of the pGL4-HDAC5-WT reporter was significantly higher than that of the pGL4-HDAC5-MUT reporter in GC cells (SGC-7901 and HGC-27 cells) transfected with the scrambled control or miR-4256 mimic (Fig. 3C and Suppl.