We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Microplastic Accumulation in the Human Lung: Distinct Signatures in Lung Cancer vs Normal Tissue
AI summary Read the abstract
Scientists found tiny plastic particles (from things like packaging and bottles) in all the lung tissue samples they studied, both cancerous and healthy. Cancer samples tended to have more plastic bits, especially smaller fiber-shaped pieces made of common plastics like polypropylene and PET, but this was a small study, so it can't yet prove plastics cause cancer, just that they're worth investigating further. Bottom line: this adds to growing evidence that microplastics are showing up in our bodies, and researchers want to know if they're contributing to lung disease.
Microplastics (MPs; <5 mm) are increasingly detected in human tissues, yet their relationship to lung cancer remains unclear. We conducted a pilot study comparing MP burden and characteristics in cancerous and non-cancerous lung tissue. Twenty cryopreserved samples (10 cancer, 10 controls) were processed using potassium hydroxide digestion, followed by Raman microspectroscopy for polymer identification. MPs were detected in all specimens. Cancer tissues showed a higher median MP count (39.0 vs 31.5 particles per ∼100 mg), although this difference was not statistically significant (OR 1.009 per particle, 95% CI 0.982-1.036). Polypropylene, polyethylene, and polyethylene terephthalate accounted for 78% of particles, with higher proportions of polypropylene and PET in cancer samples. Fibers predominated overall and were more frequent in cancer tissue, as were smaller particles (<50 µm). These findings suggest distinct microplastic signatures in lung cancer, supporting further investigation into their potential role in pulmonary carcinogenesis in larger, longitudinal studies.
More Papers Like This
Causal relationship between micro- and nanoplastics and lung function
AI summary Read the abstract
Researchers quantified micro- and nanoplastic levels in whole blood from young adults using pyrolysis GC-MS and measured lung function by spirometry, analyzing the causal relationship between circulating plastic particle burden and forced expiratory volume and vital capacity outcomes.
Micro(Nano)Plastics and the Risk of Cancer Development: Calling for Attention to a Macro Issue
AI summary Read the abstract
Researchers examined the potential role of micro- and nanoplastics in cancer development, reviewing mechanistic evidence for how these ubiquitous particles may disrupt cellular processes and promote tumor-associated pathways. The paper calls for greater scientific and regulatory attention to the oncological risks of chronic low-level plastic particle exposure.
Toxicological effects of different particle sizes and types of nano-plastics (NPs) on human lung cells: implications for the health risk of airborne microplastic pollution
AI summary Read the abstract
Researchers exposed human A549 alveolar cells to polystyrene and polymethylmethacrylate nanoplastics of 30 and 50 nm and found that smaller size and higher concentration produced stronger cytotoxicity, oxidative stress, inflammation, and apoptosis—with PS nanoparticles more toxic than PMMA—providing in vitro evidence of respiratory health risks from inhaled airborne nanoplastics.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.