Elastin messenger RNA (ELN mRNA)

Elastin (ELN) mRNA is the messenger RNA transcript that encodes tropoelastin, the soluble precursor to the elastin protein (NCBI Gene ID: 2006). This molecule is essential for the production of elastic fibers, which provide critical resilience and recoil properties to tissues such as the aorta, lungs, and skin (UniProt P15502). In the cardiovascular system, ELN mRNA expression is vital during development and for maintaining the structural integrity of large arteries (PubMed: 29439110). Genetic mutations or deletions that reduce the levels of functional ELN mRNA lead to elastin haploinsufficiency, a condition underlying supravalvular aortic stenosis (SVAS) and Williams-Beuren syndrome (PubMed: 10545607). These diseases are characterized by the narrowing of major blood vessels, leading to significant cardiovascular morbidity and mortality. ELN mRNA has become a therapeutic target through the development of mRNA replacement therapies, such as mRNA-1549 (also known as VX-522), which are designed to restore tropoelastin production in deficient cells (Moderna Pipeline). By delivering synthetic ELN mRNA encapsulated in lipid nanoparticles, researchers aim to stimulate the synthesis of new elastic fibers and improve vascular compliance. This approach represents a novel strategy to treat genetic connective tissue disorders by addressing the underlying transcript deficiency rather than just managing symptoms.

Other names

Tropoelastin mRNAELN transcriptElastin mRNA

mRNA replacement therapy designed to restore the production of functional tropoelastin protein in patients with elastin haploinsufficiency.