miR‐29a‐3p promotes migration and invasion in ameloblastoma via Wnt/β‐catenin signaling by targeting catenin beta interacting protein 1

Background Ameloblastoma (AB) is a common epithelial odontogenic tumor. The Wnt/β‐catenin pathway has been found to be related to AB invasion. Methods The alteration expression of microRNAs (miRNAs) and messenger RNAs (mRNAs) was performed by miRNA and mRNA microarray analysis and validated by quantitative real‐time polymerase chain reaction (RT‐PCR). The effects of miR‐29a‐3p on migration and invasion in AB cells were evaluated by a transwell assay. Bioinformatic prediction was conducted using the miRSystem and validated by quantitative RT‐PCR, western blot, and a luciferase reporter assay. Results miR‐29a‐3p was overexpressed in AB tissues, which promoted the migration and invasion of AB cells in vitro. Catenin beta interacting protein 1 (CTNNBIP1), a negative regulator of the Wnt/β‐catenin pathway, was predicted to be a target of miR‐29a‐3p. miR‐29a‐3p inhibited the expression of CTNNBIP1 and promoted the expression of the downstream molecules of the Wnt/β‐catenin pathway. Conclusions miR‐29a‐3p promoted migration and invasion in AB via Wnt/β‐catenin signaling by targeting CTNNBIP1.