The molecular process of lncRNA-PCAT-1 has been declared that the lncRNA-PCAT-1 is straight linked to polycomb repressive complex 2 (PRC2), a methyltransferase which controls histone H3 methylation at lysine 27 (K27) to inhibit transcription and that lncRNA-PCAT-1 up-regulation contributes to cell proliferation activated in vitro by target of the PRC2 and is correlated with tumor aggressiveness in prostate malignancy (Shi et al., 2015[15]). This evidence concerns the gene PCAT1 and neoplasm.