Effects of Oct4 downregulation on the expression levels of numerous lncRNAs. F5M2 cells were treated with Oct4 siRNA1 or scramble for 3 days. The expressions of lncRNAs were measured by real-time RT-PCR (n=6). *P<0.01 vs. scramble. lncRNA, long non-coding RNA; siRNA, small interfering RNA; Oct4, octamer-binding transcription factor 4; BCAR4, breast cancer anti-estrogen resistance 4; CASC2, cancer susceptibility candidate 2; HIF1A-AS1, HIF1A antisense RNA 1; PCA3, prostate cancer associated 3; PVT1, Pvt1 oncogene; SNHG5, small nucleolar RNA host gene 5.