Abstract
The cyto- and genotoxic effects of ferromagnetic nanoparticles (FNs), a static magnetic field (SMF), or their combination were comparatively studied in Ehrlich ascites carcinoma (EAC) cells, bone marrow (BM) erythroid series cells, and peripheral blood lymphocytes at definite time intervals, using the MN test and the DNA-comet assay. The MN test and the DNA-comet assay were used as markers of genotoxic exposure. It has been shown that the limit value of insignificantly expressed changes in the EAC cell architectonics (due to FNs) is an FN concentration of 3 mg/kg. The FN concentration increases in tumor cells, because the expressed blebbing in the cytoplasmic membrane increases the amount of micronuclei and the percentage of DNA in the comet tail in EAC cells, BM erythroid series cells, and peripheral blood lymphocytes. It has also been demonstrated that an SMF alone, as an independent factor, does not produce cytogenotoxic effects on the studied cells. When SMF and FN were used in combination, we could observe the phenomenon of SMF induction by FNs, which manifested itself as an increased total effect of these factors on cells. The MN-test and the DNA-comet assay can be used for assessing the genomic stability of both tumor cells and somatic nonmalignized cells when testing the genotoxic effect of nanomaterials used in the design of vector systems. As was established, the DNA-comet method demonstrated a higher sensitivity in the assessment of the genotoxicity produced by the studied factors.
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Original Ukrainian Text © V.F. Chekhun, Yu.V. Lozovskaya, N.Yu. Lukyanova, D.V. Demash, I.N. Todor, L.A. Naleskina, 2013, published in Tsitologiya i Genetika, 2013, Vol. 47, No. 3, pp. 60–70.
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Chekhun, V.F., Lozovskaya, Y.V., Lukyanova, N.Y. et al. Assessment of the cyto- and genotoxic effects of a nanoferromagnetic and a static magnetic field in vivo. Cytol. Genet. 47, 179–187 (2013). https://doi.org/10.3103/S009545271303002X
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DOI: https://doi.org/10.3103/S009545271303002X