Collagen type I alpha 1 chain mRNA 3' untranslated region (COL1A1 mRNA 3'UTR)

The Collagen type I alpha 1 chain (COL1A1) mRNA 3' untranslated region (3'UTR) is a critical regulatory segment of the transcript that encodes the primary component of type I collagen [1]. This region governs the stability and translational efficiency of the mRNA through interactions with various trans-acting factors, including the stabilizing poly(C)-binding protein (alpha-CP) and the destabilizing miR-29 family of microRNAs [1, 2]. In fibrotic diseases, dysregulation of these interactions leads to the pathological stabilization of COL1A1 mRNA, resulting in the excessive accumulation of collagen and subsequent organ scarring [3]. As a therapeutic target, the 3'UTR is addressed using microRNA mimics, such as Remlarsen, or antisense oligonucleotides designed to accelerate mRNA decay or block stabilizing factors [4]. Targeting this non-coding region offers a precise mechanism to modulate collagen production at the post-transcriptional level, providing a potential treatment for conditions like systemic sclerosis and pulmonary fibrosis [4, 5]. Research indicates that the 3'UTR contains specific C-rich elements that are essential for the high-level expression of collagen in activated fibroblasts [1]. By disrupting these regulatory motifs, it is possible to selectively reduce the synthesis of type I collagen without affecting the production of other essential cellular proteins [3, 4].

Other names

COL1A1 3'UTR3' untranslated region of COL1A1Collagen alpha-1(I) mRNA 3'UTR3' untranslated region of Collagen type I alpha 1 chain mRNA

Regulation of mRNA degradation and translation efficiency through the recruitment of the RNA-induced silencing complex (RISC) or by blocking stabilizing protein-RNA interactions [1, 2, 4].