2012
DOI: 10.3109/17435390.2012.674571
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Genotoxicity of multi-walled carbon nanotubes in bothin vitroandin vivoassay systems

Abstract: The genotoxic effects of multi-walled carbon nanotubes (MWCNTs) were examined by using in vitro and in vivo assays. MWCNTs significantly induced micronuclei in A549 cells and enhanced the frequency of sister chromatid exchange (SCE) in CHO AA8 cells. When ICR mice were intratracheally instilled with a single dose (0.05 or 0.2 mg/animal) of MWCNTs, DNA damage of the lungs, analysed by comet assay, increased in a dose-dependent manner. Moreover, DNA oxidative damage, indicated by 8-oxo-7,8-dihydro-2'-deoxyguanos… Show more

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Cited by 94 publications
(98 citation statements)
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“…Although indirect genotoxic CNT action might be related to inflammation and ROS formation, direct CNT DNA damage in cells has been postulated as being responsible for epithelial and mesothelial malignant transformation. Some in vitro and in vivo experiments have shown a direct interaction of MWCNTs with DNA [155], suggesting a genotoxic/mutagenic potential, whereas weaker data are available on SWCNTs [156,157].…”
Section: Potential Mechanisms Of Cnt Oncogenesismentioning
confidence: 99%
“…Although indirect genotoxic CNT action might be related to inflammation and ROS formation, direct CNT DNA damage in cells has been postulated as being responsible for epithelial and mesothelial malignant transformation. Some in vitro and in vivo experiments have shown a direct interaction of MWCNTs with DNA [155], suggesting a genotoxic/mutagenic potential, whereas weaker data are available on SWCNTs [156,157].…”
Section: Potential Mechanisms Of Cnt Oncogenesismentioning
confidence: 99%
“…The SCE test was performed as described previously ( Kato et al, 2012). Briefly, CHO AA8 cells were cultured in RPMI 1640 (Sigma-Aldrich Japan) supplemented with 10% fetal bovine serum (JRH Biosciences) at 37°C in a 5% CO 2 atmosphere.…”
Section: Sce Testmentioning
confidence: 99%
“…Narażenie in vitro na MWCNT (średnica ok. 70 nm) wywoływało zwiększoną częstość wymiany chromatyd siostrzanych w komórkach jajowych chomika chińskiego oraz aberracje chromosomowe (liczbowe, brak strukturalnych) [41,42]. Stwierdzono, że SWCNT i MWCNT: Baytubes® oraz Nanotec (średnica 10-30 nm), nie wykazywały działania genotoksycznego (aberracji chromosomowych i zwiększenia częstości wymiany chromatyd siostrzanych) w fibroblastach chomika chińskiego lub ludzkich limfocytach [37,38].…”
Section: Droga Dermalnaunclassified
“…W badaniach in vivo zaobserwowano dodatnie wyniki testu kometowego u myszy narażanych dotchawiczo, dootrzewnowo, zarówno na SWCNT, jak i MWCNT [39,42,45]. Jednościenne nanorurki węglo-we indukowały również uszkodzenia DNA mitochondrialnego u myszy aspirowanych dogardłowo [46].…”
Section: Droga Dermalnaunclassified
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