PECAM1 and neoplasm: Furthermore, in vivo administration of Nor led to a reduction in tumor growth, weight, and secretion of LGALS1 and IGFBP7 in HGC‐27‐formed xenograft models, alongside decreased proliferation index (Ki‐67), reduced CD31‐positive microvessels, and altered levels of AKT phosphorylation and EMT markers (Figure 8E–G).