Document Detail

Part I. Development of a model system for studying nitric oxide in tumors: high nitric oxide-adapted head and neck squamous cell carcinoma cell lines.
MedLine Citation:
PMID:  20972659     Owner:  NLM     Status:  MEDLINE    
The free radical nitric oxide (NO) is over-expressed in many tumors, including head and neck squamous cell carcinomas (HNSCC); however, the role NO plays in tumor pathophysiology is still not well understood. We, herein, report the development of an in vitro model system which can be used to probe the role of NO in the carcinogenesis of HNSCC. Five HNSCC cell lines were adapted to a high NO (HNO) environment by gradually introducing increasing concentrations of DETA-NONOate, a nitrogen-based NO donor, to cell media. The adaptation process was carried out until a sufficiently high enough donor concentration was reached which enabled the HNO cells to survive and grow, but which was lethal to the original, unadapted ("parent") cells. The adapted HNO cells exhibited analogous morphology to the parent cells, but grew better than their corresponding parent cells in normal media, on soft agar, and in the presence of hydrogen peroxide, an oxygen-based free radical donor. These results indicate that the HNO cell lines are unique and possess biologically different properties than the parent cell lines from which they originated. The HNO/parent cell lines developed herein may be used as a model system to better understand the role NO plays in HNSCC carcinogenesis.
Yaroslav R Yarmolyuk; Benjamin J Vesper; William A Paradise; Kim M Elseth; Gabor Tarjan; G Kenneth Haines; James A Radosevich
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2010-10-23
Journal Detail:
Title:  Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine     Volume:  32     ISSN:  1423-0380     ISO Abbreviation:  Tumour Biol.     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2010-12-17     Completed Date:  2011-01-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8409922     Medline TA:  Tumour Biol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  77-85     Citation Subset:  IM    
Center for Molecular Biology of Oral Diseases, Department of Oral Medicine and Diagnostic Sciences, College of Dentistry, University of Illinois at Chicago, 801 S. Paulina St, Chicago, IL 60612, USA.
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MeSH Terms
Adaptation, Physiological / drug effects*
Carcinoma, Squamous Cell / drug therapy,  metabolism,  pathology*
Cell Proliferation / drug effects
Cell Survival / drug effects
Head and Neck Neoplasms / drug therapy,  metabolism,  pathology*
Hydrogen Peroxide / pharmacology
Models, Biological
Nitric Oxide / metabolism*
Nitric Oxide Donors / pharmacology
Nitroso Compounds / pharmacology
Oxidants / pharmacology
Tumor Cells, Cultured
Reg. No./Substance:
0/Nitric Oxide Donors; 0/Nitroso Compounds; 0/Oxidants; 10102-43-9/Nitric Oxide; 146724-94-9/2,2'-(hydroxynitrosohydrazono)bis-ethanamine; 7722-84-1/Hydrogen Peroxide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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