High MMP-2 and -9 levels were associated with esophageal carcinomas (Koyama et al., 1990) and breast (Alrehaili et al., 2020), oral (Lin et al., 2004), bladder (Fouad et al., 2019), skin (Fundyler et al., 2004), larynx (Liu et al., 2005) cancer. Here, MMP2 is linked to cancer.