ADAM9 and thyroid gland papillary carcinoma: We next analyzed whether there was an association between miR-126-3p expression and ADAM9 and SLC7A5 mRNA expression in the TCGA papillary thyroid cancer dataset, and found a significant inverse association with SLC7A5 mRNA expression (r = −0.257, p<0.01) but not with ADAM9 mRNA expression (Fig 5E).