HOTAIR and cancer: Additionally, many lncRNAs such as PCGEM1, CTBP1-AS, PCAL7, HOTAIR, CRPC-Lnc#6, SOCS2-AS1, NXTAR and ARNILA associate with ARs in different cancers and modulate various aspects of tumorigenesis and carcinogenesis via diverse mechanisms (Figure 2 and Table 1).