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Refined Murine Model of Idiopathic Pulmonary Fibrosis
Published on: June 17, 2025
Research progresses on the regulatory roles of microRNAs in radiation-induced pulmonary fibrosis
Min Zhu1,2, Haowei Li1, Rui Chen1
1Department of Nuclear Medicine, the First Affiliated Hospital of Naval Medical University, Shanghai, 200433, China.
Abstract:
Radiation-induced pulmonary fibrosis (RIPF) is a chronic fibrotic lung disease triggered by ionizing radiation exposure and is characterized by abnormal epithelial-mesenchymal transition (EMT), fibroblast proliferation and activation, and excessive extracellular matrix (ECM) deposition. As a late-stage pulmonary complication of radiation exposure, RIPF lacks effective clinical interventions. Although nintedanib and pirfenidone are approved antifibrotic drugs for idiopathic pulmonary fibrosis (IPF), their efficacy against RIPF remains insufficiently validated. The precise pathogenesis of RIPF remains incompletely understood; however, accumulating evidence highlights the critical regulatory role of epigenetic modifications, particularly microRNAs (miRNAs), in the development and progression of RIPF. Here, we summarize the regulatory mechanisms of miRNAs in RIPF, and highlight their clinical potential and current research challenges, aiming to advance miRNA-related research in RIPF.
Insights
Radiation-induced pulmonary fibrosis (RIPF) is a serious lung condition lacking effective treatments. MicroRNAs (miRNAs) play a key role in RIPF development, offering potential therapeutic targets for this radiation-induced lung disease.
Area of Science:
- Pulmonary Medicine
- Oncology
- Genetics
Background:
- Radiation-induced pulmonary fibrosis (RIPF) is a severe late-stage complication of radiation therapy.
- Current treatments for RIPF are limited, and its pathogenesis is not fully understood.
- Epigenetic modifications, especially microRNAs (miRNAs), are increasingly recognized as critical regulators in RIPF.
Purpose of the Study:
- To summarize the regulatory mechanisms of miRNAs in the development and progression of RIPF.
- To highlight the clinical potential of miRNAs as therapeutic targets for RIPF.
- To identify current research challenges in miRNA-based RIPF research.
Main Methods:
- Literature review of studies investigating miRNA roles in radiation-induced pulmonary fibrosis.
- Analysis of molecular mechanisms underlying miRNA regulation in RIPF pathogenesis.
- Evaluation of existing and potential therapeutic strategies targeting miRNAs for RIPF.
Main Results:
- miRNAs are implicated in key RIPF processes, including epithelial-mesenchymal transition (EMT), fibroblast activation, and extracellular matrix (ECM) deposition.
- Specific miRNAs have been identified as potential biomarkers and therapeutic targets for RIPF.
- The precise roles and interactions of miRNAs in RIPF pathogenesis require further elucidation.
Conclusions:
- miRNAs represent a promising avenue for developing novel therapeutic interventions for RIPF.
- Further research is needed to overcome challenges in translating miRNA-based strategies into clinical practice for radiation-induced lung injury.
- Understanding miRNA regulation is crucial for advancing RIPF treatment strategies.
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