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Updated: Jan 3, 2026

MicroRNA Amplification and Recognition through Locked-nucleic-acid In situ Hybridization as A Novel Detection and Quantification Method
Published on: October 7, 2025
microRNAs Are Key Regulators in Chronic Lung Disease: Exploring the Vital Link between Disease Progression and Lung
Mathew Suji Eapen1, Kielan Darcy McAlinden1, Stephen Myers1
1Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, University of Tasmania, Launceston, Tasmania 7248, Australia.
Abstract:
microRNAs (miRNAs) bind to mRNAs and inhibit their expression through post-transcriptionally regulating gene expression. Here, we elaborate upon the concise summary of the role of miRNAs in carcinogenesis with specific attention to precursor respiratory pathogenesis caused by cigarette smoke modulation of these miRNAs. We review how miRNAs are implicated in cigarette-smoke-driven mechanisms, such as epithelial to mesenchymal transition, autophagy modulation, and lung ageing, which are important in the development of chronic obstructive pulmonary disease and potential progression to lung cancer. Extracellular vesicles are key to inter-cellular communication and sharing of miRNAs. A deeper understanding of the role of miRNAs in chronic respiratory disease and their use as clinical biomarkers has great potential. Therapeutic targeting of miRNAs may significantly benefit the prevention of cancer progression.
Insights
MicroRNAs (miRNAs) play a crucial role in cancer development, particularly in lung diseases linked to smoking. Understanding miRNA regulation offers potential for preventing cancer progression.
Area of Science:
- Molecular Biology
- Oncology
- Respiratory Medicine
Background:
- MicroRNAs (miRNAs) are key regulators of gene expression, inhibiting mRNA translation post-transcriptionally.
- Cigarette smoke significantly modulates miRNA expression, contributing to respiratory pathogenesis.
- miRNAs are implicated in crucial cellular processes like epithelial-mesenchymal transition, autophagy, and lung aging.
Discussion:
- Cigarette smoke-induced miRNA alterations are central to chronic obstructive pulmonary disease (COPD) development.
- These miRNA changes can drive the progression from COPD to lung cancer.
- Extracellular vesicles facilitate intercellular communication via miRNA transfer, influencing disease pathogenesis.
Key Insights:
- miRNAs are critical mediators of cigarette smoke's harmful effects on the respiratory system.
- Dysregulated miRNAs are involved in key mechanisms driving COPD and lung cancer.
- Extracellular vesicle-mediated miRNA exchange highlights complex intercellular signaling in respiratory diseases.
Outlook:
- Further research into miRNA roles in chronic respiratory diseases is essential.
- miRNAs show promise as diagnostic and prognostic biomarkers for lung conditions.
- Targeting miRNA pathways therapeutically could offer novel strategies for cancer prevention.
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