[Roles of long non-coding RNAs in prostate cancer and their action mechanisms]

Prostate cancer (PCa) is one of the most common male malignancies as well as one of the frequent causes of tumor-induced death. Long non-coding RNAs (lncRNAs) are RNA transcripts that are more than 200 nucleotides in length, lack an open reading frame, and do not encode proteins. LncRNAs are abnormally expressed in most tumors including PCa and closely related to the recurrence, metastasis and prognosis of PCa. LncRNAs regulate gene expressions at multiple levels such as epigenetics, transcription and post-transcription, change metabolic pathways, and play a carcinogenic or anti-tumor role in the development and progression of PCa. Continuous androgen receptor (AR) signal transduction is one of the key features of castration-resistant PCa. This review briefly introduces the role of lncRNAs as oncogenes or tumor suppressor genes in the development and progression of PCa, and expounds the possible molecular mechanisms of lncRNAs mediating PCa through the AR signaling pathway, post-transcriptional regulation represented by ceRNA, and tumor metabolism, aiming to provide potential biomarkers and therapeutic targets for the clinical diagnosis and treatment of PCa.