For example, Sheng et al. found that, loss of suppression of miR-206, kinesin family member 2A was significantly overexpressed in ovarian cancer and was associated with poor prognosis of patients with ovarian cancer [5]; Lei et al. suggested that miR-222-mediated downregulation of matrix metalloproteinase inhibitor 3 indicated a good prognosis for non-small cell lung cancer [6]. This evidence concerns the gene KIF2A and ovarian cancer.