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Paino, Iêda Maria Martinez; Marangoni, Valéria Spolon; de Oliveira, Rita de Cássia Silva; Antunes, Lusânia Maria Greggi; Zucolotto, Valtencir
Toxicology letters, 11/2012, Letnik: 215, Številka: 2Journal Article
Display omitted ► The geno- and cytotoxicity of gold nanoparticles in cancer and healthy cells were investigated. ► The reactive oxygen species (ROS) generation was evidenced for both cells. ► The healthy cells exhibit less sensitive to DNA damage than cancer cells. ► The nanoparticulate systems can be applied in cancer therapy with reduced side effects. Engineered nanomaterials have been extensively applied as active materials for technological applications. Since the impact of these nanomaterials on health and environment remains undefined, research on their possible toxic effects has attracted considerable attention. It is known that in humans, for example, the primary site of gold nanoparticles (AuNps) accumulation is the liver. The latter has motivated research regarding the use of AuNps for cancer therapy, since specific organs can be target upon appropriate functionalization of specific nanoparticles. In this study, we investigate the geno and cytotoxicity of two types of AuNps against human hepatocellular carcinoma cells (HepG2) and peripheral blood mononuclear cells (PBMC) from healthy human volunteers. The cells were incubated in the presence of different concentrations of AuNps capped with either sodium citrate or polyamidoamine dendrimers (PAMAM). Our results suggest that both types of AuNps interact with HepG2 cells and PBMC and may exhibit in vitro geno and cytotoxicity even at very low concentrations. In addition, the PBMC were less sensitive to DNA damage toxicity effects than cancer HepG2 cells upon exposure to AuNps.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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