TGFB1 and gastric cancer: The scratch test results showed that the subtypes of macrophages formed by TGFβ1 intervention group were co cultured with gastric cancer cells (Hgc27 and MKN45) for 12 and 24 hours (Fig. 5a), and the proliferation ability of gastric cancer cells (Hgc27 and MKN45) was significantly enhanced (Fig. 5b-c).