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Role of microplastics in the tumor microenvironment (Review)
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This review examines how microplastics may help tumors grow by influencing the environment around cancer cells. Microplastics can interact with immune cells, connective tissue cells, blood vessel cells, and the tissue scaffolding around tumors in ways that may promote cancer progression and inflammation. While more research is needed, the findings raise important questions about whether chronic microplastic exposure could affect cancer development in humans.
Microplastics (MPs) are pervasive in several ecosystems and have the potential to infiltrate multiple aspects of human life through ingestion, inhalation and dermal exposure, thus eliciting substantial concerns regarding their potential implications for human health. Whilst initial research has documented the effects of MPs on disease development across multiple physiological systems, MPs may also facilitate tumor progression by influencing the tumor microenvironment (TME). This evolving focus underscores the growing interest in the role of MPs in tumorigenesis and their interactions within the TME. In the present review, the relationship between MPs and the TME is comprehensively assessed, providing a detailed analysis of their interactions with tumor cells, stromal cells (including macrophages, fibroblasts and endothelial cells), the extracellular matrix and inflammatory processes. Recommendations for future research directions and strategies to address and reduce microplastic pollution are proposed.
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This review examined the evidence linking microplastic exposure to tumor initiation and progression, covering physical, chemical, and inflammatory mechanisms by which MPs may promote oncogenesis. The authors conclude that while current evidence is largely preclinical, accumulating data warrant serious concern about microplastics as environmental carcinogens.
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This review examines evidence linking microplastics to cancer risk, noting that microplastics have been detected at higher concentrations in human tumor tissues than adjacent healthy tissue, and that they can act as vectors for carcinogens while inducing oxidative stress, inflammation, and genotoxicity.
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This review examines the growing evidence linking microplastic exposure to cancer development in humans. Microplastics can accumulate in the body and trigger inflammation, oxidative stress, and other biological changes associated with tumor growth. While more clinical research is needed, the review highlights that microplastics should be taken seriously as a potential factor in cancer risk.
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.
Microplastic-induced carcinogenesis: Molecular mechanisms, cellular interactions, and toxicological implications
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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
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