Analysis of cobalt ferrite nanoparticles induced genotoxicity on human peripheral lymphocytes: comparison of size and organic grafting-dependent effects

被引：31

作者：

Colognato, Renato ^{[1
]}

Bonelli, Alessia ^{[1
]}

Bonacchi, Daniele ^{[2
]}

Baldi, Giovanni ^{[2
]}

Migliore, Lucia ^{[1
]}

机构：

[1] Univ Pisa, Dept Human & Environm Sci, I-56126 Pisa, Italy

[2] CERICOL, Florence, Italy

来源：

NANOTOXICOLOGY | 2007年 / 1卷 / 04期

关键词：

Nanoparticles; drug delivery; nanomedicine; nanotoxicology;

D O I：

10.1080/17435390701817359

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

We aimed to detect the potential genotoxic effects of CoFe2O4 particles (CoFe), of different size, by means of the micronucleus test (MN) in human lymphocytes for the possible use in hyperthermic treatments. CoFe of 5.6 nm (CoFe06) showed a significant decrease of the cytokinesis blocked proliferation index (CBPI) (p<0.05), in parallel to a significant increase in the frequency of micronucleated binucleated lymphocytes (BNMN) (p<0.05). For CoFe of 10 mu m (CoFe10) a significant increase in BNMN was found, but any cytotoxic effect. For larger CoFe particles of 120 mu m (CoFe120) any significant effect in both indices was detected. To verify if these effects could be triggered by the release in the medium of Co2+ source, we organically grafted CoFe06 (CoFe06Lig) to analyze if there was a reduction of the Co+2-induced toxic effect. CoFe06Lig showed still a statistically significant genotoxic effect (p<0.05), but 4-fold less than that observed for the same NP, but 'naked'.

引用

页码：301 / 308

页数：8

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