For example, pseudogene OCT4-pg4 regulates OCT4 expression by competing for miR-145 in hepatocellular carcinoma [23]; pseudogene TUSC2P promotes TUSC2 function by binding multiple microRNAs [24]; a FTH1 gene-pseudogene-microRNA network modulates development of prostate cancer [25]. The gene discussed is POU5F1; the disease is prostate cancer.