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A comparison of the effects of polystyrene and polycaprolactone nanoplastics on macrophages
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A comparison of polystyrene and polycaprolactone nanoplastics on macrophage immune cells found both types induced adverse cellular effects, with the study highlighting that plastic persistence in the environment may drive progressive accumulation leading to chronic immune system impacts.
Plastics are persistent in the environment, which suggests that they may induce adverse effects due to their progressive accumulation over time.
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Effects of true to life polyethylene terephthalate and polycaprolactone nanoparticles on macrophages under a repeated exposure mode
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Researchers compared how macrophages respond to repeated low-dose exposure to persistent PET nanoparticles versus biodegradable polycaprolactone nanoparticles. They found that cells adapted over repeated exposures, showing less dramatic changes than in single-dose experiments, but PET nanoparticles still induced oxidative stress, reduced phagocytic ability, and triggered pro-inflammatory responses. The study suggests that the biopersistence of conventional plastic nanoparticles like PET may pose more sustained immune system effects compared to biodegradable alternatives.
Influence of the polymer type on the impact of microplastic particles
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Researchers compared the cellular effects of polystyrene, polyethylene, PVC, and PLA microparticles on murine macrophages and epithelial cells, assessing uptake and cytotoxicity. All polymer types were ingested by macrophages, but the degree of cytotoxicity varied by polymer composition.
Effects of true to life polyethylene terephthalate and polycaprolactone nanoparticles on macrophages under a repeated exposure mode
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Researchers exposed macrophages to PET and polycaprolactone nanoparticles under a repeated-dose exposure scheme mimicking chronic environmental exposure, finding that repeated exposures altered immune cell function differently than single-dose protocols commonly used in prior studies.
Nanoplastics and Immunity: Investigating the Extracellular Matrix’s Influence on Macrophage Interaction with Polystyrene Nanoparticles
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Researchers investigated how extracellular matrix components affect macrophage uptake of polystyrene nanoplastics, finding that the surrounding matrix modulates nanoplastic-immune cell interactions — with implications for understanding how nanoplastics evade or engage the innate immune response.
Influence of the polymer type on the impact of microplastic particles
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Researchers compared cellular toxicity of microparticles made from polystyrene, polyethylene, PVC, PLA, and cellulose acetate in murine macrophages and epithelial cells, finding that polymer type influences cytotoxicity and uptake behavior. All particle types were ingested by macrophages, but their surface chemistry and charge affected the degree of cellular damage.
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