List of potential miRNAs and their expression (Up or Down) were matched parallel with human prostate cancer sample cohorts.

The expression of miRNAs from human patient’s samples were derived from three GEO databases including the recurrent and non-recurrent cases (GSE88958), with primary prostate cancer stem cells (GSE59156), and the miRNA expression profile of prostate cancer compared with normal prostate tissue (GSE60117).