As shown in Table 2, Kaplan-Meier survival analysis revealed that the overall survival of gastric cancer patients with high intratumoral CXCR4 expression was significantly poorer than those patients with low CXCR4 intratumoral expression (P<0.001; Figure 2A, Table 2), indicating a crucial impact of intratumoral CXCR4 expression on clinical outcome in patients. Here, CXCR4 is linked to gastric cancer.