FNDC1 and gastric cancer: In order to understand the role of FNDC1 expression in the invasion and metastasis of GC, we transfected lentivirus into AGS and MGC803 cells for FNDC1 knockdown and followed by a series of in vitro assays such as CCK8, cell cycle assay, colony formation assay, invasion assay, scratch assay, and Edu staining assay.