Cyclin A2 mRNA 3'-untranslated region (CCNA2 mRNA 3'-UTR)

The Cyclin A2 (CCNA2) mRNA 3'-untranslated region (3'-UTR) is a critical regulatory segment of the CCNA2 transcript that governs the stability and translation of this essential cell cycle protein (Wang et al., 2013). Cyclin A2 is a central regulator of the eukaryotic cell cycle, facilitating the transition through the S phase and into mitosis (Protein Atlas, 2024). The 3'-UTR contains specific motifs, such as AU-rich elements (AREs), which are recognized by RNA-binding proteins like HuR (ELAVL1) to stabilize the transcript, as well as binding sites for various microRNAs that promote its degradation (Vigneron et al., 2006). In various malignancies, including breast, lung, and liver cancers, the CCNA2 mRNA 3'-UTR is often involved in the pathological overexpression of Cyclin A2, driving rapid tumor growth and poor prognosis (Jiang et al., 2022). Therapeutic strategies targeting this region include the use of antisense oligonucleotides (ASOs) and small interfering RNAs (siRNAs) to induce mRNA cleavage or block the binding of stabilizing proteins. Additionally, small molecules like CMLD-2 have been developed to disrupt the interaction between stabilizing proteins and the 3'-UTR. While targeting the CCNA2 3'-UTR holds promise for anti-proliferative therapy, challenges include ensuring delivery to tumor tissues and minimizing systemic toxicity resulting from the inhibition of normal cell division. Overall, the CCNA2 mRNA 3'-UTR represents a sophisticated node for post-transcriptional control and a potential vulnerability in cancer cells.

Other names

CCNA2 3'-UTRCyclin A2 3'-UTRCcna2 3'-UTRCyclin-A2 mRNA 3'-untranslated regionCCNA2 mRNA 3-prime untranslated region

Modulation of mRNA stability and translation through antisense-mediated degradation or disruption of RNA-protein interactions.