MicroRNA 489-3p (miR-489-3p) (miR-489-3p)

MicroRNA 489-3p (miR-489-3p) is a small, non-coding RNA molecule that acts as a critical regulator of gene expression at the post-transcriptional level [1]. It functions by binding to the 3' untranslated regions (UTRs) of specific messenger RNAs, leading to their degradation or the inhibition of their translation [2]. miR-489-3p is predominantly recognized as a tumor suppressor, and its downregulation is frequently observed in various cancers, including breast, lung, and pancreatic cancer [3]. It exerts its anti-tumor effects by targeting key oncogenic pathways, specifically inhibiting genes such as HER2, AKT3, and PTPN11 [4]. Beyond its role in oncology, miR-489-3p is essential for maintaining the quiescence of muscle stem cells and plays a role in bone metabolism and osteoarthritis [5, 6]. In therapeutic contexts, miR-489-3p is being investigated as a potential drug target or therapeutic agent, with miR-489 mimics showing promise in preclinical studies to restore its suppressive function [7]. However, challenges such as targeted delivery and potential off-target effects remain significant hurdles for its clinical application [8]. As a biomarker, its expression levels in tissue or circulation may serve as a prognostic indicator for cancer progression and treatment response [9].

Other names

hsa-miR-489-3pMIR489miR-489

Binds to the 3' untranslated region (UTR) of target messenger RNAs (mRNAs), such as HER2, AKT3, and PTPN11, to induce translational repression or mRNA degradation via the RNA-induced silencing complex (RISC) [2, 3, 4].