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Updated: May 20, 2026
08:17
Generation of a Chronic Obstructive Pulmonary Disease Model in Mice by Repeated Ozone Exposure
Published on: August 25, 2017
Experimental modelling of chronic obstructive pulmonary disease.
E S Lebedeva1, N A Kuzubova, L N Danilov
1Institute of Pulmonology, I. P. Pavlov State Medical University, St. Petersburg, Russia. osmelena@mail.ru
Bulletin of Experimental Biology and Medicine
|July 18, 2012
Summary
Researchers developed a novel method to experimentally replicate chronic obstructive pulmonary disease (COPD) stages. This nitrogen dioxide-induced model effectively mimics COPD
Area of Science:
- Pulmonary Medicine
- Toxicology
- Pathology
Background:
- Chronic obstructive pulmonary disease (COPD) poses a significant global health burden.
- Accurate animal models are crucial for understanding COPD pathogenesis and developing treatments.
Purpose of the Study:
- To establish a reliable experimental method for reproducing the key stages of COPD development.
- To validate the model by assessing characteristic COPD biomarkers and pathological changes.
Main Methods:
- Induction of lung injury and inflammation using nitrogen dioxide (NO2) exposure.
- Morphological analysis of lung tissue to identify hyperplasia, metaplasia, emphysema, and fibrosis.
- Assessment of immunological markers including CD3 lymphocytes, TNFα, and TGFβ levels.
Main Results:
- Nitrogen dioxide exposure successfully induced pathological changes mirroring COPD, including goblet cell hyperplasia, squamous metaplasia, emphysema, and fibrosis.
- The model exhibited characteristic COPD features: increased CD3+ lymphocytes, elevated TNFα and TGFβ production, and high levels of pathogenic immune complexes.
- Observed structural and functional alterations persisted for 6 months, confirming a chronic disease course.
Conclusions:
- The NO2-induced lung injury model effectively reproduces the progressive stages of COPD.
- This model serves as a valuable tool for investigating COPD pathogenesis and evaluating therapeutic interventions.
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