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Chronic Nanoplastics Exposure Drives Lung Cancer Progression Through Atf3/Pck2 Axis-Mediated Rewiring of Truncated Gluconeogenesis
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Chronic nanoplastics exposure drives lung cancer progression through ATF3/PCK2 axis-mediated rewiring of truncated gluconeogenesis
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Researchers found that prolonged exposure of lung cancer cells to environmentally relevant nanoplastic doses accelerates tumor progression by activating an ER stress pathway that upregulates the ATF3-PCK2 metabolic axis, rewiring cancer cell metabolism toward anabolic gluconeogenesis — identifying nanoplastics as potential environmental tumor promoters.
Chronic Exposure to Polystyrene Nanoplastics Promotes Lung Cancer Progression via Activating Gluconeogenesis and Inhibiting Glycolysis
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Researchers found that long-term exposure to polystyrene nanoplastics promoted lung cancer cell growth and migration by reprogramming cellular metabolism. The study suggests nanoplastics activate a specific metabolic pathway through the stress-response protein ATF3, shifting energy production in ways that enhance cancer cell proliferation.
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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.
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A new study found that tiny plastic particles (nano-microplastics) can disrupt the gut bacteria in mice, causing a buildup of lactate (a natural body chemical) that then travels through a specific biological pathway to worsen lung damage. This suggests that swallowing microplastics, now common in food, water, and even the air we breathe, might harm your lungs indirectly by first messing with your gut health, highlighting yet another reason to be concerned about everyday plastic exposure.
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