Abstract
Circular RNAs (circRNAs) have emerged as pivotal regulators of gene expression and cellular processes in various physiological and pathological conditions. In recent years, there has been a growing interest in investigating the role of circRNAs in inflammatory lung diseases, owing to their potential to modulate inflammation-associated pathways and contribute to disease pathogenesis. Inflammatory lung diseases, like asthma, chronic obstructive pulmonary disease (COPD), and COVID-19, pose significant global health challenges. The dysregulation of inflammatory responses demonstrates a pivotal function in advancing these diseases. CircRNAs have been identified as important players in regulating inflammation by functioning as miRNA sponges, engaging with RNA-binding proteins, and participating in intricate ceRNA networks. These interactions enable circRNAs to regulate the manifestation of key inflammatory genes and signaling pathways. Furthermore, emerging evidence suggests that specific circRNAs are differentially expressed in response to inflammatory stimuli and exhibit distinct patterns in various lung diseases. Their involvement in immune cell activation, cytokine production, and tissue remodeling processes underscores their possible capabilities as therapeutic targets and diagnostic biomarkers. Harnessing the knowledge of circRNA-mediated regulation in inflammatory lung diseases could lead to the development of innovative strategies for disease management and intervention. This review summarizes the current understanding of the role of circRNAs in inflammatory lung diseases, focusing on their regulatory mechanisms and functional implications.
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KD is supported by a project grant from the Rebecca L Cooper Medical Research Foundation and the Maridulu Budyari Gumal Sydney Partnership for Health, Education, Research and Enterprise (SPHERE) RSEOH CAG Seed grant, fellowship, and extension grant, Uttaranchal University grant, and the Faculty of Health MCR/ECR Mentorship Support Grant.
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Asif Ahmad Bhat, Gaurav Gupta, Ahsas Goyal, Riya Thapa, and Waleed Hassan almalki wrote the main manuscript text. Imran Kazmi, Sami I. Alzarea, Neelima Kukreti, Mahendran Sekar and Dhanalekshmi Unnikrishnan Meenakshi wrote the main manuscript text and prepared figures. Sachin Kumar Singh, Ronan MacLoughlin and Kamal Dua edited the manuscript. All authors reviewed the manuscript. The authors confirm that no paper mill or artificial intelligence was used.
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Bhat, A.A., Gupta, G., Goyal, A. et al. Unwinding circular RNA’s role in inflammatory pulmonary diseases. Naunyn-Schmiedeberg's Arch Pharmacol 397, 2567–2588 (2024). https://doi.org/10.1007/s00210-023-02809-7
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DOI: https://doi.org/10.1007/s00210-023-02809-7