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61,005 resultsShowing papers similar to Interaction of Polystyrene Nanoplastics and Helicobacter pylori Modulates Gastric Cancer Cellular Functions and Metastasis
ClearInteraction of Polystyrene Nanoplastics and Helicobacter pylori Modulates Gastric Cancer Cellular Functions and Metastasis
Researchers examined whether polystyrene nanoplastics and Helicobacter pylori bacteria can jointly enter gastric cancer cells and influence cancer progression. The study found that combined exposure to nanoplastics and H. pylori modulated cell proliferation, apoptosis, autophagy, and metastasis in gastric cancer cells, suggesting that nanoplastic contamination may interact with bacterial infections to affect cancer-related cellular processes.
Interaction of Polystyrene Nanoplastics and Helicobacter pylori Modulates Gastric Cancer Cellular Functions and Metastasis
Researchers examined whether polystyrene nanoplastics and Helicobacter pylori bacteria can jointly enter gastric cancer cells and influence cancer progression. The study found that combined exposure to nanoplastics and H. pylori modulated cell proliferation, apoptosis, autophagy, and metastasis in gastric cancer cells, suggesting that nanoplastic contamination may interact with bacterial infections to affect cancer-related cellular processes.
Interaction of Polystyrene Nanoplastics and Helicobacter pylori Modulates Gastric Cancer Cellular Functions and Metastasis
Researchers examined whether polystyrene nanoplastics and Helicobacter pylori bacteria can jointly enter gastric cancer cells and influence cancer progression. The study found that combined exposure to nanoplastics and H. pylori modulated cell proliferation, apoptosis, autophagy, and metastasis in gastric cancer cells, suggesting that nanoplastic contamination may interact with bacterial infections to affect cancer-related cellular processes.
Interaction of Polystyrene Nanoplastics and Helicobacter pylori Modulates Gastric Cancer Cellular Functions and Metastasis
Researchers examined whether polystyrene nanoplastics and Helicobacter pylori bacteria can jointly enter gastric cancer cells and influence cancer progression. The study found that combined exposure to nanoplastics and H. pylori modulated cell proliferation, apoptosis, autophagy, and metastasis in gastric cancer cells, suggesting that nanoplastic contamination may interact with bacterial infections to affect cancer-related cellular processes.
Polyethylene microplastics cooperate with Helicobacter pylori to promote gastric injury and inflammation in mice
Researchers investigated how polyethylene microplastics interact with the stomach bacterium Helicobacter pylori in mice. They found that H. pylori formed biofilms on microplastic surfaces, and that mice exposed to both microplastics and the bacteria developed more severe gastric inflammation than those exposed to either alone. The study suggests that microplastics may facilitate bacterial colonization in the stomach and amplify infection-related tissue damage.
Synergistic toxicity of nanoplastics and Helicobacter pylori on digestive system in mice
Researchers studied the combined toxic effects of nanoplastics and the stomach bacterium Helicobacter pylori on the digestive systems of mice. They found that co-exposure caused more severe damage to the stomach, colon, and liver than either stressor alone, including increased inflammation and disrupted gut barrier function. The study suggests that nanoplastic contamination may worsen the health effects of common gut infections.
Charge-dependent effects of nanoplastics on Helicobacter pylori virulence and gastric pathogenesis
Researchers infected mice with Helicobacter pylori and co-exposed them to positively charged, negatively charged, or neutral polystyrene nanoplastics, then assessed gastric pathogenesis. Positively charged nanoplastics most strongly enhanced H. pylori virulence, gastric inflammation, and ulceration, identifying surface charge as a key determinant of how nanoplastics interact with gut pathogens.
Nano-plastics and gastric health: Decoding the cytotoxic mechanisms of polystyrene nano-plastics size
Researchers examined how different sizes of polystyrene nanoplastics affect human stomach cells in the laboratory. They found that smaller nanoplastics were more readily taken up by the cells and caused greater damage, including increased oxidative stress and reduced cell survival. The study suggests that nanoplastic particle size plays a critical role in determining their potential impact on gastrointestinal health.
The Complex Toxicity of Tetracycline with Polystyrene Spheres on Gastric Cancer Cells
Polystyrene nanoplastics and microplastics adsorbed the antibiotic tetracycline, and both the plastics alone and the plastic-tetracycline complexes caused oxidative stress, DNA damage, and cell death in gastric cancer cells, with nanoplastics being more toxic than microplastics. The combined toxicity of antibiotic-loaded nanoplastics warrants attention given the growing co-occurrence of plastics and pharmaceuticals in aquatic environments.
Synergistic Promotion of Triple‐Negative Breast Cancer Tumorigenesis and Metastasis by Oral Polystyrene Nanoplastics Exposure via Alloprevotella ‐Derived Glutamate and Platelet Activation
Oral exposure to 100 nm polystyrene nanoplastics in mice accelerated the metastasis of triple-negative breast cancer tumors without affecting primary tumor growth. Mechanistically, nanoplastics altered gut microbiota, reducing Alloprevotella abundance and increasing glutamate and platelet activation, which promoted cancer cell invasion.
Uptake and toxicity of polystyrene micro/nanoplastics in gastric cells: Effects of particle size and surface functionalization
Researchers evaluated the uptake and toxicity of polystyrene micro- and nanoplastics in human gastric cells, comparing different sizes and surface treatments. The study found that smaller 50-nanometer particles were taken up at significantly higher rates, with positively charged aminated particles being the most toxic, causing cytotoxicity at lower concentrations and higher rates of cell death.
Size-dependent toxicity of polystyrene microplastics on the gastrointestinal tract: Oxidative stress related-DNA damage and potential carcinogenicity
Researchers found that polystyrene microplastics accumulate mainly in stomach tissue, where smaller nanoscale particles cause more severe damage than larger ones. The nanoplastics reduced antioxidant enzyme activity, increased DNA damage markers, and activated signaling pathways associated with cancer development. These size-dependent effects on the gastrointestinal tract suggest that the smallest plastic particles may pose the greatest risk to digestive health.
Nanoplastics aggravate the toxicity of arsenic to AGS cells by disrupting ABC transporter and cytoskeleton
Researchers investigated how polystyrene nanoplastics of various sizes affect the toxicity of arsenic in human gastric cells. They found that while nanoplastics alone at noncytotoxic concentrations did not harm cells, they significantly enhanced arsenic accumulation and toxicity by disrupting cell membrane integrity, damaging the cytoskeleton, and inhibiting ABC transporter activity. The study highlights that nanoplastics can aggravate the harmful effects of co-occurring environmental contaminants even at concentrations previously considered safe.
Comparative evaluation of molecular mechanisms triggered by differently functionalized polystyrene nanoplastics in human colon cell lines
Researchers compared the molecular mechanisms triggered by polystyrene nanoplastics with different surface functionalization in human colon cell lines. The study examined how surface chemistry of nanoplastic particles influences their biological interactions with intestinal cells, contributing to understanding of how nanoplastics may affect the human gastrointestinal system.
Relationship Between Human Microbiome and Helicobacter pylori
This review explores the complex relationship between Helicobacter pylori, the bacterium that causes stomach ulcers, and the broader human gut microbiome. While not directly about microplastics, it provides important context because microplastic exposure is known to alter gut bacteria composition. Understanding how the gut microbiome interacts with specific pathogens is relevant to assessing whether microplastic-driven changes in gut bacteria could make people more vulnerable to infections.
Effects of weathering and simulated gastric fluid exposure on cellular responses to polystyrene particles
Researchers studied the effects of weathering and simulated gastric fluid exposure on cellular responses to polystyrene particles. The study suggests that environmental weathering can alter how micro- and nanoplastics interact with biological systems, with potential implications for understanding human health effects from ingested plastic particles.
Characterization of Microplastics in Human Gastric Cancer and Control Tissues and Analysis of Associated Genetic Features
Researchers detected and characterized microplastics in human gastric cancer tissue and adjacent healthy tissue, finding significantly higher microplastic concentrations in cancer tissue, and used transcriptome sequencing to explore potential molecular mechanisms linking microplastic exposure to gastric cancer development.
Polystyrene micro- and nanoplastics induce gastric toxicity through ROS mediated oxidative stress and P62/Keap1/Nrf2 pathway
In a mouse study, polystyrene micro and nanoplastics at environmentally relevant doses caused significant stomach damage, including reduced gastric juice and mucus production, weakened stomach barrier function, and increased oxidative stress. The damage was driven by reactive oxygen species triggering a specific cell-signaling pathway that led to cell death. This research suggests that microplastics in food and water could harm stomach health, an organ that gets first exposure when contaminated food is consumed.
Autophagic response of intestinal epithelial cells exposed to polystyrene nanoplastics
Researchers found that polystyrene nanoplastics accumulate in the cytoplasm of intestinal epithelial cells, impairing autophagic flux and triggering an autophagic stress response confirmed in both cell and animal models.
Combined Vibrio and nanoplastics stress promotes nanoplastic accumulation while reducing bacterial lethality in shrimp
Researchers discovered that Vibrio bacteria act as carriers for nanoplastics in shrimp, ferrying the tiny particles through the gut wall and concentrating them in organs, but interestingly the nanoplastics also weakened the bacteria's ability to cause infection, showing that plastic-pathogen interactions in seafood are complex and two-directional.
Enhanced ASGR2 by microplastic exposure leads to resistance to therapy in gastric cancer
Researchers fed polystyrene microplastics to mice and found that the particles accumulated in stomach tissue, where they triggered changes associated with more aggressive cancer behavior. In gastric cancer cells, microplastic exposure increased migration, induced drug resistance to multiple cancer therapies, and activated a gene called ASGR2 that appears to drive these effects. The study suggests that microplastic accumulation in the stomach may interfere with the effectiveness of cancer treatments.
Polystyrene nanoplastics promote the apoptosis in Caco-2 cells induced by okadaic acid more than microplastics
Researchers compared how polystyrene nanoplastics and microplastics interact with the marine toxin okadaic acid in human intestinal cells. They found that nanoplastics enhanced the toxicity of okadaic acid significantly more than microplastics, triggering endoplasmic reticulum stress and cell death through calcium overload. The study suggests that smaller plastic particles may amplify the harmful effects of co-occurring environmental toxins in the digestive system.
Interactions between polystyrene-derived micro- and nanoplastics and the microbiota: a systematic review of multi-omics mouse studies
Researchers systematically reviewed 15 mouse studies and found that exposure to polystyrene micro- and nanoplastics consistently disrupted gut bacteria — reducing beneficial species like Lactobacillus and increasing harmful ones — while also altering metabolic pathways throughout the body. Nanoplastics caused more severe microbiome disruption than larger microplastics, highlighting a serious health concern for humans.
Microplastic in Gastric Fasting Liquid and Associated Gastric Pathology
This study found microplastic particles in gastric fluid samples collected from patients undergoing routine stomach examinations, and noted associations between microplastic presence and gastric pathologies including H. pylori infection, intestinal metaplasia, and inflammation. The findings provide direct clinical evidence that microplastics accumulate in the human stomach and may be linked to gastric disease, though causality is not yet established. This is an important step toward understanding whether microplastic ingestion contributes to gastrointestinal health problems in humans.