HIPK3 and cancer: Reportedly, the circRNA, circHIPK3, which was derived from Exon2 of HIPK3 [16], contributes to cancer progression by adsorbing miR-124 in many types of cancer, including liver cancer [16,24], glioma [25,26,27], lung cancer [28], gastric cancer [29], gallbladder cancer [30], and oral squamous cell carcinoma [31].