Cyclin D1 messenger RNA 3' untranslated region (CCND1 mRNA 3' UTR)

The Cyclin D1 (CCND1) messenger RNA 3' untranslated region (UTR) is a critical regulatory segment of the CCND1 transcript that controls the stability and translation of the Cyclin D1 protein (Source: NCBI Gene ID: 595). This region contains numerous binding sites for microRNAs (miRNAs), such as the miR-15/16 family, and RNA-binding proteins that normally act to repress Cyclin D1 expression (Source: Bentwich et al., Nature Genetics, 2005). In various malignancies, particularly mantle cell lymphoma and breast cancer, the 3' UTR often undergoes shortening through alternative polyadenylation or genomic deletions (Source: Wiestner et al., Blood, 2007). This loss of regulatory sequences allows the mRNA to escape miRNA-mediated degradation, leading to the constitutive overexpression of Cyclin D1 and subsequent uncontrolled cell cycle progression from G1 to S phase (Source: Mayr and Bartel, Cell, 2009). As a therapeutic target, the CCND1 mRNA 3' UTR is being explored for intervention using antisense oligonucleotides (ASOs) and small interfering RNAs (siRNAs) designed to either degrade the transcript or block specific regulatory interactions (Source: Deshpande et al., Nature Reviews Drug Discovery, 2023). Targeting the mRNA directly offers a strategy to reduce protein levels at the source, potentially overcoming resistance mechanisms associated with downstream CDK4/6 inhibitors.

Other names

CCND1 3'-UTRCyclin D1 3' untranslated regionBCL1 mRNA 3' UTRPRAD1 mRNA 3' UTRCCND1 regulatory region

Sequence-specific binding to the 3' UTR to induce mRNA degradation via RNase H recruitment or to block interactions with stabilizing/destabilizing factors, thereby normalizing Cyclin D1 protein levels.