HOTAIR and cervical cancer: HOTAIR in HPV-negative C-33A cells remains an extremely lower level, so when we overexpressed the HOTAIR functional region in C-33A cells, the free miR-214-3p lost its inhibitory effect against β-catenin mRNA due to the adsorption of HOTAIR against miR-214-3p, eventually caused the expression of β-catenin was significantly up-regulated in cervical cancer cells.