ZnO Quantum Dots Induced Oxidative Stress and Apoptosis in HeLa and HEK-293T Cell Lines
ZnO Quantum Dots Induced Oxidative Stress and Apoptosis in HeLa and HEK-293T Cell Lines
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ZnO量子点诱导HeLa和HEK-293T细胞系氧化应激和细胞凋亡
DOI:
10.3389/fphar.2020.00131
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发表时间:
2020-02
影响因子:
5.6
通讯作者:
Shaoping Ji
中科院分区:
文献类型:
--
作者:
Yanjie Yang;Zhenhua Song;Weixia Wu;Ao Xu;Shuangyu Lv;Shaoping Ji
Zinc oxide (ZnO) quantum dot (QD) is a promising inexpensive inorganic nanomaterials, of which potential toxic effects on biological systems and human health should be evaluated before biomedical application. In this study, the cytotoxicity of ZnO QDs was assessed using HeLa cervical cancer cell and HEK-293T human embryonic kidney cell lines. Cell viability was significantly decreased by treatment with 50 µg/ml ZnO QDs after only 6 h, and the cytotoxicity of ZnO QDs was higher in HEK-293T than in HeLa cells. ZnO QDs increased the level of reactive oxygen species and decreased the mitochondria membrane potential in a dose-dependent manner. Several gene expression involved in apoptosis was regulated by ZnO QDs, including bcl-2 gene and caspase. In HeLa cells, ZnO QDs significantly increased early and late apoptosis, but only late apoptosis was affected in HEK-293T cells. These findings will be helpful for future research and application of ZnO QDs in biomedicine.
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DOI:
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影响因子:
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期刊:
Materials science & engineering. C, Materials for biological applications
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通讯作者:
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