The global microRNA downregulation observed in Prostate Cancer is a combined result of epigenetic and microRNA biogenesis machinery's alterations. miR-130a is a new epigenetically regulated, tumour-suppressor miRNA critical for reversion of Prostate cancer cells malignant phenotype. SEC23B and DEPDC1 are specific targets of miR-130a and contribute to the prostatic carcinogenesis. miR-130a is a specific prostate cancer biomarker.