We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Microplastics as environmental modifiers of lung disease
Summary
This review examines growing evidence that inhaled microplastics may contribute to lung diseases including asthma, pulmonary fibrosis, and chronic obstructive pulmonary disease. Researchers found that different plastic types, sizes, and weathering states can trigger inflammation, oxidative stress, and cellular changes in lung tissue, suggesting microplastics may act as environmental modifiers that worsen respiratory conditions.
Human-driven environmental change continues to reshape global patterns of disease, as seen in past pollution-related respiratory crises. Microplastics, persistent synthetic polymer particles, have now emerged as a widespread airborne contaminant with growing relevance for lung health. Continuous inhalation exposure, particularly in indoor environments rich in synthetic fibers, raises concern about their contribution to respiratory disease. Epidemiological and experimental studies increasingly link microplastic exposure to lung cancer, asthma, chronic obstructive pulmonary disease, and pulmonary fibrosis, yet the underlying mechanisms remain poorly defined. This review integrates current evidence on how particle properties influence biological outcomes and outlines how different polymer types, sizes, and aging states affect lung cells through inflammation, oxidative stress, ferroptosis, epithelial-mesenchymal transition, and epigenetic change. Together, these findings suggest that microplastics may act as environmental modifiers that exacerbate disease progression. Recognizing their complex and persistent nature highlights the need for standardized exposure metrics, mechanistic research at realistic doses, and coordinated scientific and regulatory action.
Sign in to start a discussion.
More Papers Like This
Microplastics, potential threat to patients with lung diseases
This review examines the potential threat that airborne microplastics pose to people with existing lung conditions, noting that these particles have been found in human lung tissue and sputum. Researchers explored possible mechanisms by which inhaled microplastics could worsen lung diseases, including triggering inflammation and oxidative stress. The study highlights significant knowledge gaps and calls for more research into how microplastic inhalation affects respiratory health.
Airborne micro- and nanoplastics: emerging causes of respiratory diseases
This review examines growing evidence that tiny airborne plastic particles can enter the lungs and trigger or worsen respiratory diseases including asthma, chronic obstructive pulmonary disease, and lung inflammation. The smallest nanoplastics are especially concerning because they can penetrate deep into lung tissue and even enter the bloodstream, yet research on airborne plastic health effects significantly lags behind studies on waterborne exposure.
Breathing plastics: Influence of airborne microplastics on the respiratory microbiome and health of human lungs (Review)
Researchers reviewed evidence showing that inhaled airborne microplastics can physically interact with the microbial community living in human lungs, disrupting its balance and triggering inflammation linked to conditions like asthma and fibrosis. Because microplastic particles have been found in lung tissue and fluid samples, inhalation is now recognized as a significant exposure route with measurable consequences for respiratory health.
Respiratory Toxicity of Microplastics: Mechanisms, Clinical Outcomes, and Future Threats
This review examined the mechanisms by which inhaled airborne microplastics cause respiratory harm, including inflammation, oxidative stress, fibrosis, and impaired mucociliary clearance. The authors also discuss emerging evidence linking microplastic inhalation to worsening asthma, COPD, and potentially lung cancer.
Microplastic and plastic pollution: impact on respiratory disease and health
This review pulls together evidence from lab studies, animal experiments, and workplace exposure research showing that inhaled micro- and nanoplastics can affect lung tissue and may contribute to respiratory diseases. However, the authors stress that it remains unclear how much damage occurs at the levels of plastic particles people actually breathe in daily life, highlighting the need for better measurements of real-world exposure.