Interleukin-1 alpha mRNA 3' untranslated region (IL1A mRNA 3'UTR)

The Interleukin-1 alpha (IL1A) mRNA 3' untranslated region (3'UTR) is a critical regulatory segment that dictates the stability and translation of the IL1A transcript, a potent pro-inflammatory cytokine [4.1.1, 4.1.2]. This region contains conserved AU-rich elements (AREs) that serve as docking sites for RNA-binding proteins (RBPs) such as Tristetraprolin (TTP), which promotes mRNA degradation in a p38 MAPK-dependent manner, and HuR, which can enhance stability [4.1.2, 6.1.3]. Additionally, microRNAs like miR-142-3p and miR-181a bind to the 3'UTR to silence IL1A expression [4.1.1, 6.1.4]. Dysregulation of these post-transcriptional mechanisms is linked to chronic inflammatory diseases, cardiovascular disorders, and cancer, where elevated IL1A levels drive tumor growth and metastasis [4.2.2, 6.4.2]. While current therapies like anakinra and rilonacept target the IL1A protein or its receptor, the 3'UTR is an emerging target for RNA-based modalities [6.4.1, 6.4.4]. Experimental approaches using antisense oligonucleotides (ASOs) and siRNAs are being developed to modulate IL1A expression by specifically targeting this regulatory region, providing a potential pathway for treating IL1-mediated pathologies [6.2.5, 6.3.1].

Other names

IL-1 alpha mRNA 3'UTRIL1A 3'UTRInterleukin-1 alpha 3' untranslated regionIL1A 3'-untranslated region

mRNA degradation via AU-rich element-mediated decay and translational inhibition [4.1.1, 4.1.2].