To determine whether CAP2 regulates GC in vivo, we injected GC cells transfected with lentiviral vector–shRNA–CAP2 (LV-shRNA-CAP2) or LV-shRNA-negative control (LV-shRNA-NC) into the tail vein of nude mice to observe tumor metastasis (Figure 3C). This evidence concerns the gene CAP2 and gastric cancer.