Cyclin-dependent kinase 4 messenger RNA 3' untranslated region (CDK4 mRNA 3'-UTR)

The Cyclin-dependent kinase 4 (CDK4) messenger RNA 3' untranslated region (3'-UTR) is a vital regulatory sequence located immediately downstream of the protein-coding region. It serves as a primary site for post-transcriptional regulation, containing multiple binding motifs for microRNAs (miRNAs) such as miR-124, miR-34a, and miR-200c, which negatively regulate CDK4 expression (PubMed: 24607534, 18364343). Because CDK4 is a central mediator of the G1/S phase transition in the cell cycle, its overexpression is a common driver in various cancers. This overexpression is often facilitated by the loss of miRNA-mediated control at the 3'-UTR or specific genetic variations within the region. Therapeutic approaches targeting this region involve the use of miRNA mimics or antisense oligonucleotides (ASOs) to suppress CDK4 protein production at the source. This target is particularly significant in precision oncology, where polymorphisms in the 3'-UTR, such as rs14734, can serve as biomarkers for disease susceptibility or treatment response (PubMed: 25663388). Unlike traditional small-molecule inhibitors that target the CDK4 protein, targeting the 3'-UTR aims to reduce the total abundance of the oncogenic protein through mRNA degradation or translational blockade.

Other names

CDK4 3'-UTRCyclin-dependent kinase 4 3'-untranslated regionCDK4 mRNA regulatory regionCDK4 3'UTR

Post-transcriptional gene silencing via microRNA-mediated mRNA degradation or translational inhibition.