MMP7 and gastric cancer: The ELISA results showed that the concentration of AGT, SERPINH1 and MMP7 in GC patients (34.51 ± 22.35 ng/mL, 733.90 ± 204.65 pg/mL and 4.67 ± 1.30 ng/mL, respectively) are significantly higher than those in the control group (25.90 ± 16.08 ng/mL, 604.41 ± 185.04 pg/mL and 3.80 ± 2.27 ng/mL, respectively) (Fig. 4A–C).