Paper Title:
Chromium Ions Induced Cytotoxicity and Oxidative Stress in the MG63 Cell Lines
  Abstract

The present study was designed to test the hypothesis that oxidative stress mediates chromium-induced cytotoxicity in MG63 cells and antioxidant N-acetyl-cysteine (NAC) can provide protection for osteoblasts against chromium-induced oxidative stress. We assessed the effects of chromium ions on cell viability, the level of intracellular reactive oxygen species (ROS) and intracellular ultrastructure in the presence or absence of NAC. A time- and concentrationdependent increased cytotoxicity, intracellular ROS generation was found and intracellular ultrastructure was damaged when cells were exposed to Cr+6. NAC afforded dose-dependent reduction to the cytotoxicity and level of cellular oxidative stress induced by Cr+6. Intracellular ultrastructural alterations were reduced by the NAC pretreatment, too. Cr+3 had no significantly negative influence in MG63 (5-20μM). Our results suggest that oxidative stress might be involved in Cr+6 induced cytotoxicity in osteoblasts. NAC can play a critical role against Cr+6- induced cytotoxicity. Cr+3 (5 -20μM) had no significant cytotoxicity in MG63 cells and cellular oxidative stress was not found, too.

  Info
Periodical
Key Engineering Materials (Volumes 342-343)
Edited by
Young-Ha Kim, Chong-Su Cho, Inn-Kyu Kang, Suk Young Kim and Oh Hyeong Kwon
Pages
609-612
DOI
10.4028/www.scientific.net/KEM.342-343.609
Citation
J. Fu, X. Liang, S. A. Wang, L. Tang, N. Zhang, "Chromium Ions Induced Cytotoxicity and Oxidative Stress in the MG63 Cell Lines", Key Engineering Materials, Vols. 342-343, pp. 609-612, 2007
Online since
July 2007
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Price
$32.00
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