TY - JOUR
T1 - A human cell panel for evaluating safe application of nano-ZrO2/polymer composite in water remediation
AU - Wang, Yabin
AU - Zhou, Li
AU - Wang, Xiaoling
AU - Liu, Xiaokun
AU - Jiang, Liwen
AU - Wang, Jiahui
AU - Sun, Hainan
AU - Jiang, Cuijuan
AU - Xing, Xueci
AU - Zhang, Yi
AU - Pan, Bingcai
AU - Yan, Bing
N1 - Publisher Copyright:
© 2018 Elsevier Inc.
PY - 2018/12/30
Y1 - 2018/12/30
N2 - Nanomaterials, such as ZrO2 nanoparticles (ZrO2 NPs), are very effective in water remediation. However, the safety issues related to nanoparticle release and toxicity to humans remain to be resolved. Here we evaluated the cytotoxicity of ZrO2 NPs and their adducts with pollutants using a human cell panel containing stomach, intestine, liver and kidney cells. We found that different pollutants or ZrO2NP/pollutant adducts targeted cells from different organs, suggesting the necessity of a cell panel to model oral exposures. The cooperation of ZrO2 NPs and pollutants was quite complex, consisting of synergistic, antagonistic, or additive effects. For example, ZrO2 NPs enhanced the cytotoxicity of Pb2+ in GES-1 cells and of Pb2+, Cd2+ in FHC cells, while alleviating the toxicity of Pb2+ and As (III) in HepG2 and Hek293 cells. Our results also indicated that even concentrations of pollutants that meet the national standard, the ZrO2 NPs concentration should be kept below 17 μg/mL to avoid ZrO2 NP/pollutant adduct synergistic toxicity.
AB - Nanomaterials, such as ZrO2 nanoparticles (ZrO2 NPs), are very effective in water remediation. However, the safety issues related to nanoparticle release and toxicity to humans remain to be resolved. Here we evaluated the cytotoxicity of ZrO2 NPs and their adducts with pollutants using a human cell panel containing stomach, intestine, liver and kidney cells. We found that different pollutants or ZrO2NP/pollutant adducts targeted cells from different organs, suggesting the necessity of a cell panel to model oral exposures. The cooperation of ZrO2 NPs and pollutants was quite complex, consisting of synergistic, antagonistic, or additive effects. For example, ZrO2 NPs enhanced the cytotoxicity of Pb2+ in GES-1 cells and of Pb2+, Cd2+ in FHC cells, while alleviating the toxicity of Pb2+ and As (III) in HepG2 and Hek293 cells. Our results also indicated that even concentrations of pollutants that meet the national standard, the ZrO2 NPs concentration should be kept below 17 μg/mL to avoid ZrO2 NP/pollutant adduct synergistic toxicity.
KW - Antagonistic effect
KW - Gastrointestinal tract
KW - Nanoparticle/pollutant adducts
KW - Synergistic effect
KW - ZrO nanoaprticles
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UR - http://www.scopus.com/inward/citedby.url?scp=85054438592&partnerID=8YFLogxK
U2 - 10.1016/j.ecoenv.2018.09.098
DO - 10.1016/j.ecoenv.2018.09.098
M3 - Article
C2 - 30312946
AN - SCOPUS:85054438592
SN - 0147-6513
VL - 166
SP - 474
EP - 481
JO - Ecotoxicology and Environmental Safety
JF - Ecotoxicology and Environmental Safety
ER -