E2F transcription factor 5 mRNA 3'-untranslated region (E2F5 mRNA 3'-UTR)

The E2F transcription factor 5 (E2F5) mRNA 3'-untranslated region (3'-UTR) is a critical regulatory segment of the E2F5 transcript, which encodes a protein essential for cell cycle progression and DNA synthesis (UniProt: Q15329). This region serves as a primary target for various microRNAs (miRNAs) that modulate E2F5 expression through sequence-specific binding, leading to mRNA degradation or translational repression. In many human cancers, such as hepatocellular carcinoma and breast cancer, E2F5 is frequently overexpressed due to the loss of inhibitory miRNAs like miR-154 or miR-34a, which normally bind to its 3'-UTR (PubMed: 28656235, 25103497). This overexpression promotes uncontrolled cell proliferation and contributes to tumor progression and metastasis. Therapeutic strategies targeting this region often involve the use of miRNA mimics or antisense oligonucleotides designed to restore the regulatory control over E2F5, thereby inhibiting oncogenic pathways (PubMed: 30066914). Understanding the interaction between the E2F5 3'-UTR and its regulatory molecules is vital for developing targeted RNA-based therapies in oncology. Additionally, the 3'-UTR may interact with RNA-binding proteins that further influence the stability and localization of the E2F5 mRNA. As a therapeutic target, it offers a way to indirectly modulate the E2F pathway, which is often dysregulated in proliferative diseases.

Other names

E2F5 3'-UTRE2F-5 3'-UTRE2F transcription factor 5 3'-UTRE2F5 mRNA 3-prime untranslated region

MicroRNA-mediated gene silencing through sequence-specific binding to the 3'-UTR, leading to mRNA degradation or translational inhibition (PubMed: 28656235).