Mucin2 regulated by Ho1/p38/IL-10 axis plays a protective role in polystyrene nanoplastics-mediated intestinal toxicity

Cui, Mengxing; He, Qianmei; Wang, Z W; Chen, Hao-Jie; Gao, Huan; Liu, Ziqi; Peng, Honghao; Han, Wei; Zhao, Xue; Li, Daochuan; Chen, Liping; Xing, Xiumei; Xiao, Yongmei; Chen, Wen; Wang, Qing

doi:10.1016/j.envpol.2023.121808

Cited by 11 publications

(1 citation statement)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, two recent study reported that polystyrene nanoplastics decreased TJ protein levels and consequently increased intestinal permeability (Cui et al, 2023;He et al, 2022). Furthermore, anionic NPs have been used to induce TJ relaxation to increase intestinal permeability for oral delivery of proteins (Lamson et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Epigallocatechin gallate alleviated the in vivo toxicity of ZnO nanoparticles to mouse intestine

Wang,

Huang,

Cao

2023

J of Applied Toxicology

View full text Add to dashboard Cite

To evaluate the oral toxicity of nanoparticles (NPs), it is necessary to consider the interactions between NPs and nutrient molecules. Recently, we reported that epigallocatechin gallate (EGCG), a healthy component in green tea, alleviated the toxicity of ZnO NPs to 3D Caco‐2 spheroids in vitro. The present study investigated the combined effects of EGCG and ZnO NPs to mice in vivo. Mice were administrated with 35 or 105 mg/kg bodyweight ZnO NPs with or without the presence of 80 mg/kg bodyweight EGCG via gastric route, once a day, for 21 days, and the influences of EGCG on the toxicity of ZnO NPs to intestine were investigated. We found that EGCG altered the colloidal properties of ZnO NPs both in water and artificial intestine juice. As expected, ZnO NPs induced toxicological effects, such as decreased bodyweight, higher Chiu's scores, and ultrastructural changes in intestine, whereas EGCG alleviated these effects. Combined exposure to EGCG and ZnO NPs also changed trace element levels in mouse intestine. For example, the levels of Ti, Co, and Ni were only significantly elevated after co‐exposure to EGCG and ZnO NPs, and Fe levels were only significantly decreased by ZnO NPs. Western blot analysis suggested that tight junction (TJ) and endoplasmic reticulum (ER) proteins were elevated by ZnO NPs, but EGCG inhibited this trend. Combined, these data suggested that gastric exposure to ZnO NPs induced intestinal damage, trace element imbalance, and TJ/ER protein expression in mouse intestine, whereas EGCG alleviated these effects of ZnO NPs.

show abstract

Section: Discussionmentioning

confidence: 99%