Several microRNAs and long noncoding RNAs contribute to pulmonary arterial hypertension (PAH) pathogenesis by impairing nitric oxide production, enhancing proliferation and migration and decreasing apoptosis of smooth muscle cells, and promoting endothelial-to-mesenchymal transition in pulmonary arteries. These noncoding RNAs (ncRNAs) could serve as both biomarkers and therapeutic targets for PAH. Nonetheless, the knowledge about their role in PAH is still incomplete. Furthermore, ncRNAs may vary across species and often act differently in different tissues and organs, and technical issues currently limit the implementation of ncRNA-based technologies. Additional studies are warranted to finally bring ncRNA into the clinical arena.
Keywords: Long noncoding RNA; Mechanisms; Pathogenesis; Pulmonary arterial hypertension; RNA; microRNA.
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