Similar to the research accomplished by Burk et al.(30), we demonstrated remarkable decrease of expressing miR-200 familymembers in metastatic cancer cells compared to non-metastatic cells (31), while expressionof ZEB1 and ZEB2 genes were increased.miR-200 family members are among the critical regulators of EMT signifiedby decreased expressions in metastatic cells. The gene discussed is ZEB2; the disease is cancer.