E2F transcription factor 3 mRNA 3′ untranslated region (E2F3 mRNA 3′UTR)

The E2F3 mRNA 3′UTR is a non-coding regulatory region of the E2F transcription factor 3 messenger RNA that plays a pivotal role in post-transcriptional gene regulation. This region contains specific binding sites for various microRNAs (miRNAs) and RNA-binding proteins that modulate the stability and translation efficiency of the E2F3 transcript (PubMed: 21415167). E2F3 is a critical driver of the G1/S phase transition, and its dysregulation is a hallmark of many human cancers, including bladder, lung, and breast carcinomas (PubMed: 24511140). In many malignant contexts, the loss of miRNA-mediated repression at the 3′UTR leads to the overexpression of E2F3, promoting uncontrolled cell cycle progression (PubMed: 17589504). Therapeutic strategies targeting the E2F3 mRNA 3′UTR often involve the use of miRNA mimics, such as miR-125b or miR-34a, to suppress E2F3 protein production and inhibit tumor cell proliferation (NCBI Gene ID: 1871). Additionally, antisense oligonucleotides (ASOs) can be designed to bind this region to induce RNase H-mediated cleavage or block the binding of stabilizing proteins. By acting as a scaffold for regulatory molecules, the 3′UTR serves as a key checkpoint for controlling the oncogenic potential of the E2F3 signaling pathway.

Other names

E2F3 3'-UTRE2F3 3-prime untranslated regionE2F transcription factor 3 3'UTR

Binding of microRNAs or antisense oligonucleotides to the 3′UTR leads to mRNA degradation or inhibition of translation, thereby reducing E2F3 protein levels.