CCR7 expression in gastric cancer cells was associated with the OS rates (log-rank test, P = 0.010<0.05), one-year, two-year and three-year OS rates were 91.4%, 78.5% and 72% for the high CCR7 expression groups, respectively, compared with 100%, 97.5% and 92.4% for the low CCR7 expression groups (Fig. 3A). Here, CCR7 is linked to gastric cancer.