ArticleFrontiers in immunology2023
Morphological and lipid metabolism alterations in macrophages exposed to model environmental nanoplastics traced by high-resolution synchrotron techniques.
Article in Frontiers in immunology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Article
- Transcriptomic and Metabolomic Analysis Reveals That Polystyrene Microplastics Exacerbate Cadmium-Induced Liver Damage in Mice Associated with AMPK-FOXO-Mediated Energy Metabolism Dysregulation.Veterinary sciences · 2026Article
- Micro- and Nanoplastics in Cardiovascular Toxicology: Human Tissue Detection, Clinical Phenotypes, and Adverse Outcome Signals.Cardiovascular toxicology · 2026Review
- Microplastics induce mitochondrial dysfunction and accelerate cardiovascular pathogenesis.Archives of toxicology · 2026Review
- Polyethylene nano- and microplastics trigger metabolic stress responses in human vaginal epithelial cells.Cell death discovery · 2026Article
- Biological Effects of Micro-/Nano-Plastics in Macrophages.Nanomaterials (Basel, Switzerland) · 2025Review
- Nanoplastics as Gene and Epigenetic Modulators of Endocrine Functions: A Perspective.International journal of molecular sciences · 2025Review
- Article
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Authors and funding
10 authors.
Funding
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Abstract
The release of nanoplastics (NPs) in the environment is a significant health concern for long-term exposed humans. Although their usage has certainly revolutionized several application fields, at nanometer size, NPs can easily interact at the cellular level, resulting in potential harmful effects. Micro/Nanoplastics (M/NPs) have a demonstrated impact on mammalian endocrine components, such as the thyroid, adrenal gland, testes, and ovaries, while more investigations on prenatal and postnatal exposure are urgently required. The number of literature studies on the NPs' presence in biological samples is increasing. However, only a few offer a close study on the model environmental NP-immune system interaction exploited by advanced microscopy techniques. The present study highlights substantial morphological and lipid metabolism alterations in human M1 macrophages exposed to labeled polypropylene and polyvinyl chloride nanoparticles (PP and PVC NPs) (20 μg/ml). The results are interpreted by advanced microscopy techniques combined with standard laboratory tests and fluorescence microscopy. We report the accurate detection of polymeric nanoparticles doped with cadmium selenide quantum dots (CdSe-QDs NPs) by following the Se (L line) X-ray fluorescence emission peak at higher sub-cellular resolution, compared to the supportive light fluorescence microscopy. In addition, scanning transmission X-ray microscopy (STXM) imaging successfully revealed morphological changes in NP-exposed macrophages, providing input for Fourier transform infrared (FTIR) spectroscopy analyses, which underlined the chemical modifications in macromolecular components, specifically in lipid response. The present evidence was confirmed by quantifying the lipid droplet (LD) contents in PP and PVC NPs-exposed macrophages (0-100 μg/ml) by Oil Red O staining. Hence, even at experimental NPs' concentrations and incubation time, they do not significantly affect cell viability; they cause an evident lipid metabolism impairment, a hallmark of phagocytosis and oxidative stress.
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