RARB and thyroid cancer: In summary, the role of miRNA-106a in the viability, apoptosis, migration, invasion, differentiation and iodine uptake function of thyroid cancer cell lines were investigated in the current research and the results indicated that miRNA-106a directly targeting RARB associated with the viability, apoptosis, differentiation and the iodine uptake function of thyroid cancer cell lines by regulating MAPK signaling pathway in vitro.