For example, miR-92a expression is increased in PTEN deletion cases [3], miR-244 is related to the apoptosis process enhancing the proliferative and migratory effects in non-small cell lung cancer (NSCLC) [4], and miR-200c influences the epithelial–mesenchymal transition in A549 cells [5]. The gene discussed is PTEN; the disease is non-small cell lung carcinoma.