Overexpression of Rab31 in cancer-associated fibroblasts (CAFs) enhances cell migration in an HGF/MET-dependent manner in colon cancer cells, indicating a key role for Rab31-expressed CAF in the colon cancer cell migration by mediating paracrine secretion of HGF (Yang et al. 2020). Here, RAB31 is linked to malignant colon neoplasm.