The binding sites between miR-200b-3p and the 3′-UTR of mRNAs were predicted using TargetScan, and we identified PTEN as the miRNA target because of the well-characterized role of this gene in tumor biology (Hopkins et al., 2014; Worby and Dixon, 2014; Alvarez-Garcia et al., 2019). This evidence concerns the gene PTEN and neoplasm.