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Insights to cellular and molecular impacts of micro/nanoplastics and their additives for carcinogenic risks
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Tiny plastic particles that build up in our bodies from everyday plastic use may do more than just sit there, this review pulls together existing research suggesting they could damage cells in ways linked to cancer development, including in the brain, lungs, colon, and breast. The proposed mechanisms include causing cell stress, damaging DNA, and triggering ongoing inflammation, all of which are known contributors to tumor growth. While this is a summary of early, still-developing science rather than definitive proof that plastics cause cancer, it highlights a real concern worth watching as researchers work to understand exactly how much risk our growing plastic expos
The widespread use of plastics in daily life has led to the pervasive accumulation of microplastics and nanoplastics (M/N-Ps) in the environment. Their improper disposal and non-biodegradability have raised significant biomedical and ecological concerns. Recent evidence indicates that M/N-P exposure may be associated with the development and progression of various carcinogenic effects leading to cancers. However, despite growing evidence of M/N-Ps bioaccumulation in human tissues, a unified mechanistic framework linking M/N-Ps exposure to direct tumor progression across multiple cancer types remains absent from the literature. This review provides a comprehensive exploration of the cellular and biomolecular interactions between M/N-Ps, their additives, and human cells, detailing their detrimental effects. It further elucidates the hypothesized role of M/N-P exposure in cancer progression by investigating its proposed link to specific cancer types, including brain, oral, colorectal, lung, leukemia, prostate, ovarian, gastric, pancreatic, and breast cancer. The mechanistic pathways discussed include oxidative stress, DNA damage, chronic inflammation, and dysregulated cell signaling. Critically, this review advances beyond cataloguing inflammatory and oxidative effects to synthesize the evidence linking M/N-Ps to mechanisms of tumor cell proliferation and invasion. Additionally, the review highlights future research perspectives, addressing the need for in-depth mechanistic studies, improved detection methods, and regulatory policies. The mechanistic synthesis presented here offers researchers, clinicians, and policymakers a structured framework for understanding M/N-P induced oncogenesis, addressing a critical research gap in translating environmental plastic exposure data into organ-specific cancer risk assessment and therapeutic strategy.
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Tiny plastic particles that we breathe, eat, and touch every day are now showing up in our blood, lungs, and other organs, and this review of existing research explains how they might contribute to cancer. Microplastics can trigger cell damage, inflammation, and disrupted signaling in ways linked to tumor growth, and they can also act like tiny rafts that ferry other harmful chemicals and toxins deeper into our bodies. While scientists haven't proven microplastics directly cause cancer in humans yet, the mounting evidence is a strong signal that reducing plastic exposure and pushing for more research should be a public health pri
Microplastics as emerging carcinogens: from environmental pollutants to oncogenic drivers
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This review examines growing evidence that microplastics and nanoplastics may play a role in cancer development, with these particles found in human tumor tissues from the lungs, colon, stomach, breast, and other organs. The particles appear to promote cancer through chronic inflammation, oxidative stress, DNA damage, and disruption of key cancer-related signaling pathways. While direct proof of causation in humans is still lacking, the accumulating evidence from lab studies, animal experiments, and human tissue analysis suggests microplastics deserve serious attention as potential contributors to cancer risk.
Micro- and nanoplastic exposure and cancer: current evidence, mechanistic pathways, and translational challenges
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This review pulls together existing research on tiny plastic particles (microplastics and nanoplastics) that we're exposed to through water, food, and air, and their possible links to cancer. Scientists have found these particles may cause cell stress, inflammation, and other changes in the body that could help cancer develop or spread—but so far this evidence comes mainly from lab and animal studies, not solid proof in humans. The bottom line: microplastics probably don't cause cancer on their own, but they may make the body's environment more favorable for tumors to grow, which is worth taking seriously even though more research is needed before we can say anything definitive.
Microplastics and human cancer risk: A comprehensive review of environmental, molecular, and nanotoxicological perspectives
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This review pulls together lab research suggesting tiny plastic particles in our environment could damage cells, cause inflammation, and disrupt processes linked to cancer growth. While these findings raise real concern, scientists still lack direct proof that microplastics cause cancer in humans, so more long-term research is needed before drawing firm conclusions.
Plastic pollution-Microplastics: Cancer related issues
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This review examines how microplastics may contribute to cancer risk, summarizing evidence that ingested microplastics can cross the gut epithelium, accumulate in tissues, induce oxidative stress and inflammation, and carry carcinogenic chemical additives.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.