Bcl-2-like protein 11 mRNA 3' untranslated region (BIM mRNA 3'UTR)

The Bcl-2-like protein 11 (BIM) mRNA 3' untranslated region (3'UTR) is a critical regulatory segment of the messenger RNA encoding the pro-apoptotic protein BIM (UniProt O43521). As a BH3-only member of the BCL-2 family, BIM is a central initiator of the intrinsic apoptotic pathway, neutralizing anti-apoptotic proteins to trigger mitochondrial outer membrane permeabilization (PubMed: 22856430). The 3'UTR serves as a hub for post-transcriptional control, containing numerous binding sites for oncogenic microRNAs—such as the miR-17-92 cluster, miR-221, and miR-24—and RNA-binding proteins like DND1 that dictate mRNA stability and translation efficiency (PubMed: 23135145, 28611294). In many cancers, BIM is downregulated through the overexpression of these miRNAs, which leads to apoptosis resistance and survival of malignant cells, particularly in response to tyrosine kinase inhibitors (PubMed: 22856430). Therapeutic strategies targeting the BIM 3'UTR, including antisense oligonucleotides (ASOs) and antagomirs, aim to block miRNA-mediated repression, thereby restoring BIM expression and sensitizing tumors to programmed cell death (PubMed: 30185415).

Other names

BCL2L11 3'UTRBIM 3-prime untranslated regionBIM 3' untranslated regionBcl-2-like protein 11 3'UTR

Modulation of BIM protein levels by blocking microRNA-mediated degradation or translational inhibition to restore apoptotic sensitivity.