alexa Effect of Chitosan-Stabilized Selenium Nanoparticles on Cell Cycle Arrest and Invasiveness in Hepatocarcinoma Cells Revealed by Quantitative Proteomics
ISSN: 2157-7439

Journal of Nanomedicine & Nanotechnology
Open Access

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Research Article

Effect of Chitosan-Stabilized Selenium Nanoparticles on Cell Cycle Arrest and Invasiveness in Hepatocarcinoma Cells Revealed by Quantitative Proteomics

Isabel Lopez-Heras1, Raquel Sanchez-Diaz1, Daniela S Anunciação2, Yolanda Madrid1, Jose L Luque-Garcia1*, Carmen Camara1

1Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, Madrid, Spain

2Institute of Chemistry and Biotechnology, University Federal of Alagoas, Maceió, Brazil

*Corresponding Author:
Jose L Luque-Garcia
Department of Analytical Chemistry
Faculty of Chemistry, University Complutense of Madrid
28040, Madrid, Spain
Tel: 34913944212
E-mail: [email protected]

Received Date: July 16, 2014; Accepted Date: September 06, 2014; Published Date: September 16, 2014

Citation: Lopez-Heras I, Sanchez-Diaz R, Anunciação DS, Madrid Y, Luque-Garcia JL, et al. (2014) Effect of Chitosan-Stabilized Selenium Nanoparticles on Cell Cycle Arrest and Invasiveness in Hepatocarcinoma Cells Revealed by Quantitative Proteomics. J Nanomed Nanotechnol 5:226. doi:10.4172/2157-7439.1000226

Copyright: © 2014 Lopez-Heras I, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Selenium nanoparticles have been recently proposed as a potential chemotherapeutic agent due to its low toxicity and its ability to arrest the cell cycle of cancer cells. However, the biochemical mechanisms associated to this effect have not yet been uncovered. We evaluate here the potential of chitosan-stabilized selenium nanoparticles to induce cell cycle arrest and to inhibit in-vitro invasiveness in HepG2 cells. In addition, we use a quantitative proteomic approach to identify potential protein targets involved in the mechanisms associated to selenium nanoparticles exposure. Our data suggest that the induction of the cell cycle arrest at the S phase is mediated by de-regulation of the eIF3 protein complex. We found additional de-regulated proteins upon selenium nanoparticles exposure that could also be involved in the overall inhibition of cell proliferation. These findings not only support the potential of chitosan-stabilized selenium nanoparticles as anti-cancer therapy but also provide a deeper insight into the mechanisms associated to their chemotherapeutic effects.

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