Abstract: In this paper, we studied the effect of Mn-Zn-Fe2O4/Se nanocomposite which was synthesized by coprecipitation method and investigated its therapeutic effect that induced by an alternating magnetic field on xenograft liver cancer in mice. Mn-Zn-Fe2O4/Se was described by X - ray diffraction (XRD), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FTIR). We also studied cytotoxicity of Mn-Zn-Fe2O4/Se nanocomposite on the HepG2 cell line. The cytotoxicity results revealed high toxicity against HepG2 cells for higher concentrations (>250 μg/mL) of Mn-Zn-Fe2O4/Se but were found to be non-toxic at lower concentrations. Reverse transcription polymerase chain reaction (RT-PCR) was used to evaluate gene expression of caspase 3, Bcl-2 and p53. The results were showed that the expression level of P53 and Casp3 was clearly up-regulated, while the expression level of Bcl-2 was down-regulated (P<0.05) after hyperthermia in treated groups.
Key Word: Mn-Zn-Fe2O4/Se nanocomposite; cytotoxicity; RT-PCR.
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