POU2F1 and gastric cancer: To study the effects of POU2F1 and LINC01564 on the metastatic ability of GC cells in vivo, we firstly transfected SGC-7901 cells with POU2F1 (OE), POU2F1 (OE) plus LINC01564 (KD) or control vector, and then injected the transfected cells into mice through the tail vein.