期刊
NANOTOXICOLOGY
卷 6, 期 7, 页码 789-803出版社
TAYLOR & FRANCIS LTD
DOI: 10.3109/17435390.2011.625127
关键词
Copper; shape; toxicity; specific surface area
资金
- Silicalloy project, RW/FUNDP [6144]
The potential toxic effects of copper oxide (CuO) nanoparticles (NPs) were studied on differentiated Caco-2 cell monolayers, a classical in vitro model of human small intestine epithelium. Two types of CuO NPs, with different specific surface area, different sizes as raw material but the same hydrodynamic diameter in suspension, differentially disturbed the monolayer integrity, were cytotoxic and triggered an increase of the abundance of several transcripts coding for pro-inflammatory cytokines and chemokines. Specific surface area was not a major variable explaining the increased toxicity when intestinal epithelium is exposed to rod-shaped CuO NPs, compared with spherical CuO NPs. The results suggest that release of Cu(II) cations and shape of these CuO NPs are likely to be implicated in the toxicity of these CuO NPs.
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