In order to investigate whether miR-200 family could contribute to the generation of cancer stem-like cell characteristics in ARCaPM and PC3 PDGF-D cells by regulating the expression of Nanog, Oct4 and Sox2, Lin28B and other stem cell-associated makers, we have searched targets of miR-200 family in www.microRNA.org. Here, POU5F1 is linked to cancer.