PUBLICATION
Effects of copper oxide nanoparticles on developing zebrafish embryos and larvae
- Authors
- Sun, Y., Zhang, G., He, Z., Wang, Y., Cui, J., Li, Y.
- ID
- ZDB-PUB-160330-6
- Date
- 2016
- Source
- International Journal of Nanomedicine 11: 905-18 (Journal)
- Registered Authors
- Cui, Jianlin, Li, Yuhao
- Keywords
- behavior, biotoxicity, copper oxide nanoparticles, liver, neuronal differentiation, oxidative stress, zebrafish
- MeSH Terms
-
- Liver/drug effects
- Copper/chemistry*
- Copper/toxicity*
- Zebrafish/growth & development*
- Nanoparticles/toxicity*
- Dose-Response Relationship, Drug
- Larva/drug effects
- Larva/growth & development
- Phenotype
- Motor Activity/drug effects
- Time Factors
- Animals
- Neurotoxins/chemistry
- Neurotoxins/toxicity
- PubMed
- 27022258 Full text @ Int. J. Nanomedicine
Citation
Sun, Y., Zhang, G., He, Z., Wang, Y., Cui, J., Li, Y. (2016) Effects of copper oxide nanoparticles on developing zebrafish embryos and larvae. International Journal of Nanomedicine. 11:905-18.
Abstract
Copper oxide nanoparticles (CuO NPs) are used for a variety of purposes in a wide range of commercially available products. Some CuO NPs probably end up in the aquatic systems, thus raising concerns about aqueous exposure toxicity, and the impact of CuO NPs on liver development and neuronal differentiation remains unclear. In this study, particles were characterized using Fourier transform infrared spectra, scanning electron microscopy, and transmission electron microscopy. Zebrafish embryos were continuously exposed to CuO NPs from 4 hours postfertilization at concentrations of 50, 25, 12.5, 6.25, or 1 mg/L. The expression of gstp1 and cyp1a was examined by quantitative reverse transcription polymerase chain reaction. The expression of tumor necrosis factor alpha and superoxide dismutase 1 was examined by quantitative reverse transcription polymerase chain reaction and Western blotting. Liver development and retinal neurodifferentiation were analyzed by whole-mount in situ hybridization, hematoxylin-eosin staining, and immunohistochemistry, and a behavioral test was performed to track the movement of larvae. We show that exposure of CuO NPs at low doses has little effect on embryonic development. However, exposure to CuO NPs at concentrations of 12.5 mg/L or higher leads to abnormal phenotypes and induces an inflammatory response in a dose-dependent pattern. Moreover, exposure to CuO NPs at high doses results in an underdeveloped liver and a delay in retinal neurodifferentiation accompanied by reduced locomotor ability. Our data demonstrate that short-term exposure to CuO NPs at high doses shows hepatotoxicity and neurotoxicity in zebrafish embryos and larvae.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping