Figure 1.

lncRNA DRHC and lncRNA HOTAIR expression levels were dysregulated in triple negative breast cancer tissues. Reverse transcription-quantitative polymerase chain reaction results revealed that (A) lncRNA DRHC was significantly downregulated while (B) lncRNA HOTAIR was significantly upregulated in tumor tissues compared with adjacent healthy tissues. The sample with the lowest expression level was set to ‘1’ and all other samples were normalized to this sample. *P<0.05. lncRNA, long non-coding RNA; DRHC, downregulated in hepatocellular carcinoma; HOTAIR, Hox transcript antisense RNA.