CXCR4 and gastric cancer: Since PGK1 is described to influence CXCR4 and β-catenin expression in gastric cancer cells (Ziecker et al., 2010), promoting peritoneal carcinomatosis, KATO III cells were incubated with 100 μM TatA for 24 h, and CXCR4 and β-catenin expression was evaluated by RT-qPCR.