PUBLICATION
Combined exposure to nanoplastics and metal oxide nanoparticles inhibits efflux pumps and causes oxidative stress in zebrafish embryos
- Authors
- Bhagat, J., Zang, L., Kaneco, S., Nishimura, N., Shimada, Y.
- ID
- ZDB-PUB-220426-4
- Date
- 2022
- Source
- The Science of the total environment 835: 155436 (Journal)
- Registered Authors
- Keywords
- ABC efflux transporter, DNA repair, Integrated biomarker response, Polystyrene nanoparticle, Reactive oxygen species
- MeSH Terms
-
- Animals
- Antioxidants/metabolism
- Metal Nanoparticles*/toxicity
- Microplastics
- Nanoparticles*/toxicity
- Oxidative Stress
- Oxides/toxicity
- Plastics
- Zebrafish/metabolism
- PubMed
- 35461948 Full text @ Sci. Total Environ.
Citation
Bhagat, J., Zang, L., Kaneco, S., Nishimura, N., Shimada, Y. (2022) Combined exposure to nanoplastics and metal oxide nanoparticles inhibits efflux pumps and causes oxidative stress in zebrafish embryos. The Science of the total environment. 835:155436.
Abstract
The ubiquity of microplastic/nanoplastics (MP/NPs) provides an opportunity for their interaction with other widely spread environmental contaminants. MP/NP and nanoparticles share a similar transport route from sources, production, and disposal. Metal oxide nanoparticles (nMOx) have varied industrial applications, and limited knowledge is available on their interaction with MP/NPs. The present study investigated the effect of NPs (1 mg/L) on the efflux of two nMOx, aluminium oxide nanoparticles (nAl2O3, 1 mg/L) and cerium oxide nanoparticles (nCeO2, 1 mg/L), and their combined toxicity to zebrafish embryos. The results illustrated increased accumulation of aluminium and cerium in the combined exposure group compared to the nMOx alone treatment. The presence of NPs exacerbated the oxidative stress caused by nAl2O3 and nCeO2, as evidenced by an increase in the concentration of reactive oxygen species (ROS), alteration of antioxidants, and lipid peroxidation. The integrated biomarker response (IBRv2) values showed the induction of an antioxidative response in NP + nAl2O3, whereas a decline in IBRv2 values was observed in NP + nCeO2. Our results indicate that NPs aggravated the accumulation of nMOx and their toxicity. The present work highlights that more attention should be paid to the discharge of these contaminants into the natural environment.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping