Fibronectin 1 messenger RNA 3'-untranslated region (FN1 mRNA 3'-UTR)

The Fibronectin 1 (FN1) messenger RNA 3'-untranslated region (3'-UTR) is a critical regulatory segment of the FN1 transcript that governs the stability and translation efficiency of the fibronectin protein (Maurer et al., 2010, Journal of Clinical Investigation). Fibronectin is a high-molecular-weight glycoprotein of the extracellular matrix (ECM) that plays a central role in cell adhesion, migration, and tissue repair (Pankov & Yamada, 2002, Journal of Cell Science). Dysregulation of FN1 expression, often mediated through its 3'-UTR by microRNAs like the miR-29 family, is a key driver in the pathogenesis of various fibrotic diseases, including liver and pulmonary fibrosis, as well as cancer progression (van Rooij et al., 2008, Proceedings of the National Academy of Sciences). Therapeutic strategies targeting this region, such as miR-29 mimics (e.g., Remlarsen) or antisense oligonucleotides, aim to downregulate fibronectin production to mitigate pathological scarring and tumor metastasis (Gallant-Behm et al., 2019, Journal of Investigative Dermatology). By acting as a scaffold for RNA-binding proteins and microRNAs, the 3'-UTR serves as a strategic site for modulating ECM remodeling in clinical settings. Consequently, the FN1 mRNA 3'-UTR is an emerging therapeutic target for diseases characterized by excessive collagen and fibronectin deposition.

Other names

FN1 3'-UTRFibronectin 1 3'-untranslated regionFN1 mRNA 3' regulatory regionFibronectin 3'-UTR

Therapeutic agents such as microRNA mimics or antisense oligonucleotides bind to specific sequences within the FN1 mRNA 3'-UTR, leading to the recruitment of the RNA-induced silencing complex (RISC) or RNase H, which results in mRNA degradation or translational inhibition (Gallant-Behm et al., 2019, Journal of Investigative Dermatology).