Document Detail


Effect of ferric ions on reactive oxygen species formation, cervical cancer cell lines growth and E6/E7 oncogene expression.
MedLine Citation:
PMID:  21044880     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
As iron ions may participate in the pathogenesis of cancer and viral infections, the aim of this study was to monitor their influence on proliferation, E6 and E7 oncogene expression and reactive oxygen species (ROS) production in two human papilloma virus (HPV) positive cervical carcinoma cell lines (HeLa and SiHa) and one HPV negative vulvar cell line (A431). The anti-anaemic drug, ferric-sorbitol-citric acid complex (FSC) as a source of Fe(III) ions was used. Cells were treated with FSC at the concentrations between 0.001 and 1 mM Fe(III) for different time periods. Fe(III) ions inhibited the viability of HeLa and A431 cells while it had no influence on SiHa cells. Furthermore, Fe(III) treatment showed a time-dependent and a higher stimulatory effect on E6/E7 expression in SiHa cells than in HeLa cells. Fe(III) ion treatment with concentrations lower than 0.1mM showed a time and a concentration dependent intracellular ROS production in all tested cell lines, while the treatment with 1mM concentration decreased ROS production in all tested cell lines. In conclusion, Fe(III) ion treatment apart from having an anti-tumour effect, as we previously described, enhances survival of HPV 16-positive cells and might be associated with HPV oncogenesis.
Authors:
Marija Poljak-Blazi; Morana Jaganjac; Ivan Sabol; Branka Mihaljevic; Mihaela Matovina; Magdalena Grce
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-10-29
Journal Detail:
Title:  Toxicology in vitro : an international journal published in association with BIBRA     Volume:  25     ISSN:  1879-3177     ISO Abbreviation:  Toxicol In Vitro     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2010-12-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8712158     Medline TA:  Toxicol In Vitro     Country:  England    
Other Details:
Languages:  eng     Pagination:  160-6     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Ltd. All rights reserved.
Affiliation:
Division of Molecular Medicine, Rudjer Boskovic Institute, Zagreb, Croatia. Marija.Poljak-Blazi@irb.hr
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