Figure 1 shows that SYT4, SYT9, SYT13, and SYT14 were significantly up-regulated in GC samples compared with the healthy controls (P = 0.022, P = 0.023, P < 0.001, and P = 0.037, respectively), while SYT8, SYT10, SYT12, SYT15, and SYT16 were significantly down-regulated in GC samples (P < 0.001, P < 0.001, P = 0.00083, P = 0.00062, and P = 0.00083, respectively). Here, SYT9 is linked to gastric cancer.