CNBP and gastric cancer: For example, circ-HUR was found to be down-regulated in gastric cancer tissues and cell lines, and interacted with the RGG domain of CCHC-type zinc finger nucleic acid binding protein (CNBP) to restrain its binding to the HuR promoter, thereby inhibiting the transcription of HuR, resulting in the down-regulation of its host gene HuR and repression of gastric cancer growth and aggressiveness in vitro and in vivo [82].