INHBB and gastric cancer: Compared with the negative control, CCK-8 assays and colony formation assays showed that INHBB knockdown (HGC-27/shINHBB and MGC-803/shINHBB) significantly inhibited cell proliferation, while INHBB overexpression (MKN-45/INHBB and HGC-27/INHBB) promoted the proliferation of GC cells (Fig. 2C, S2C).