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Cytotoxicity of nickel zinc ferrite nanoparticles on cancer cells of epithelial origin

Authors Al-Qubaisi MS, Rasedee A, Flaifel MH, Ahmad S, Hussein-Al-Ali S, Hussein MZ, Eid EEM, Zainal Z, Saeed M, Ilowefah M, Fakurazi S, Isa NM, El Zowalaty ME

Received 5 January 2013

Accepted for publication 22 February 2013

Published 15 July 2013 Volume 2013:8(1) Pages 2497—2508


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Mothanna Sadiq Al-Qubaisi,1 Abdullah Rasedee,1,2 Moayad Husein Flaifel,5 Sahrim HJ Ahmad,5 Samer Hussein-Al-Ali,1 Mohd Zobir Hussein,3 Eltayeb EM Eid,6 Zulkarnain Zainal,3 Mohd Saeed,1 Muna Ilowefah,4 Sharida Fakurazi,1 Norhaszalina Mohd Isa,1 Mohamed Ezzat El Zowalaty1,7

1Institute of Bioscience, 2Faculty of Veterinary Medicine, 3Department of Chemistry, Faculty of Science, 4Faculty of Food Science and Technology, Universiti Putra Malaysia, Selangor, Malaysia; 5School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Selangor, Malaysia; 6College of Pharmacy, Qassim University, Buraidah, Saudi Arabia; 7Faculty of Pharmacy, Zagazig University, Ash Sharqiyah, Egypt

Abstract: In this study, in vitro cytotoxicity of nickel zinc (NiZn) ferrite nanoparticles against human colon cancer HT29, breast cancer MCF7, and liver cancer HepG2 cells was examined. The morphology, homogeneity, and elemental composition of NiZn ferrite nanoparticles were investigated by scanning electron microscopy, transmission electron microscopy, and energy dispersive X-ray spectroscopy, respectively. The exposure of cancer cells to NiZn ferrite nanoparticles (15.6–1,000 µg/mL; 72 hours) has resulted in a dose-dependent inhibition of cell growth determined by MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay. The quantification of caspase-3 and -9 activities and DNA fragmentation to assess the cell death pathway of the treated cells showed that both were stimulated when exposed to NiZn ferrite nanoparticles. Light microscopy examination of the cells exposed to NiZn ferrite nanoparticles demonstrated significant changes in cellular morphology. The HepG2 cells were most prone to apoptosis among the three cells lines examined, as the result of treatment with NiZn nanoparticles. In conclusion, NiZn ferrite nanoparticles are suggested to have potential cytotoxicity against cancer cells.

Keywords: NiZn ferrite nanoparticles, cancer cells lines, anticancer, apoptosis

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