Graphene oxide can induce in vitro and in vivo mutagenesis.

Graphene oxide can induce in vitro and in vivo mutagenesis.
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氧化石墨烯可以诱导体外和体内诱变

DOI:
10.1038/srep03469
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发表时间:
2013-12-11
期刊:
影响因子:
4.6
通讯作者:
Zhang N
Zhang N
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Liu Y;Luo Y;Wu J;Wang Y;Yang X;Yang R;Wang B;Yang J;Zhang N

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氧化石墨烯(GO)以其特殊的性质引起了人们的极大兴趣。最近的研究证实了GO的细胞毒性,我们在本研究中进一步探讨了它的诱变潜力。结果表明,GO对DNA复制有干扰作用,并在分子水平上诱发突变。10和100 μg/mLGO处理在细胞水平上改变了基因表达谱,差异表达基因介导了DNA损伤控制、细胞凋亡、细胞周期和代谢。静脉注射GO(4 mg/kg,连续5天)可明显诱发小鼠微核红细胞的形成,其诱变能力与经典诱变剂环磷酰胺相当。总之,GO在体外和体内都能诱发突变,因此在生物医学上的应用需要额外的考虑。
Graphene oxide (GO) has attracted enormous interests due to its extraordinary properties. Recent studies have confirmed the cytotoxicity of GO, we further investigate its mutagenic potential in this study. The results showed that GO interfered with DNA replication and induced mutagenesis at molecular level. GO treatments at concentrations of 10 and 100 μg/mL altered gene expression patterns at cellular level, and 101 differentially expressed genes mediated DNA-damage control, cell apoptosis, cell cycle, and metabolism. Intravenous injection of GO at 4 mg/kg for 5 consecutive days clearly induced formation of micronucleated polychromic erythrocytes in mice, and its mutagenesis potential appeared to be comparable to cyclophosphamide, a classic mutagen. In conclusion, GO can induce mutagenesis both in vitro and in vivo, thus extra consideration is required for its biomedical applications.
在数秒内高产、大规模生产少层石墨烯薄片:使用氯磺酸和H2O2作为剥离剂
DOI: 10.1039/c2jm16741g
发表时间: 2012-01-01
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作者:
Lu, Wenbo;Liu, Sen;Sun, Xuping
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