Expression of HOTAIR was upregulated in liver cancer tissues and liver cancer cell lines. (A) The expression of HOTAIR in tumor tissues and normal tissues was detected by qRT-RCR. (B) The expression of HOTAIR in 3 liver cancer cell lines (MHCC 97H, HepG2 and Hep3B) and normal human hepatic cell line HL-7702 was evaluated by qRT-RCR. (C) The expression of HOTAIR in tumor tissues and normal tissues was measured by northern blotting. (D) The expression of HOTAIR in MHCC 97H, HepG2, Hep3B and HL-7702 cell lines was measured by northern blotting (*P<0.05, **P<0.01). HOTAIR, HOX transcript antisense RNA