Interleukin 1 beta mRNA 3'-untranslated region (IL1B mRNA 3'-UTR)

The Interleukin 1 beta (IL1B) mRNA 3'-untranslated region (3'-UTR) is a critical regulatory segment of the IL1B transcript that controls the stability and translation of this potent pro-inflammatory cytokine. It contains several conserved motifs, including AU-rich elements (AREs), which serve as binding sites for RNA-binding proteins (RBPs) like HuR (ELAVL1) and tristetraprolin (TTP/ZFP36), as well as microRNAs such as miR-30e-3p. These interactions dictate the half-life of the mRNA and the efficiency of its translation into the pro-IL-1 beta protein. In many chronic inflammatory and autoinflammatory diseases, the dysregulation of these post-transcriptional mechanisms leads to the overproduction of IL-1 beta, driving pathological inflammation. Consequently, the IL1B mRNA 3'-UTR has emerged as a therapeutic target for antisense oligonucleotides (ASOs) and small molecules designed to destabilize the transcript or block its translation. By specifically targeting the mRNA rather than the mature protein or its receptor, these therapies aim to provide a more precise modulation of the IL-1 signaling pathway. This approach is particularly relevant for patients who are refractory to traditional IL-1 blockers like anakinra or canakinumab.

Other names

IL-1 beta mRNA 3'-UTRInterleukin-1 beta 3'-untranslated regionIL1B 3'-UTRIL1B 3' untranslated region

Modulation of mRNA stability and translation through binding to regulatory elements (e.g., AU-rich elements) or microRNA binding sites, leading to mRNA degradation or translational repression.