NDLI: Sodium metavanadate exhibits carcinogenic tendencies in vitro in immortalized human bronchial epithelial cells.

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Sodium metavanadate exhibits carcinogenic tendencies in vitro in immortalized human bronchial epithelial cells.

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Sodium metavanadate exhibits carcinogenic tendencies in vitro in immortalized human bronchial epithelial cells.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Passantino, Lisa Muñoz, Alexandra B. Costa, Max
Description	Country affiliation: United States Author Affiliation: Passantino L ( New York University, Department of Environmental Medicine, 57 Old Forge Road, Tuxedo, New York, USA. max.costa@nyumc.org.)
Abstract	Pentavalent vanadium compounds induce intracellular changes in vitro that are consistent with those of other carcinogenic substances. While there is no clear evidence that vanadium compounds cause cancer in humans, vanadium pentoxide causes lung cancer in rodents after long-term inhalation exposures and in turn IARC has categorized it as a group 2B possible human carcinogen. The goal of this study was to investigate the carcinogenicity of NaVO3 in the human immortalized bronchial epithelial cell line, Beas-2B. Cells were treated with 10 µM NaVO3 for 5 weeks, with or without recovery time, followed by gene expression microarray analysis. In a separate experiment, cells were exposed to 1-10 µM NaVO3 for 4 weeks and then grown in soft agar to test for anchorage-independent growth. A dose-dependent increase in the number of colonies was observed. In scratch tests, NaVO3-transformed clones could repair a wound faster than controls. In a gene expression microarray analysis of soft agar clones there were 2010 differentially expressed genes (DEG) (adjusted p-value ≤ 0.05) in NaVO3-transformed clones relative to control clones. DEG from this experiment were compared with the DEG of 5 week NaVO3 exposure with or without recovery, all with adjusted p-values < 0.05, and 469 genes were altered in the same direction for transformed clones, 5 week NaVO3-treated cells, and the recovered cells. The data from this study imply that chronic exposure to NaVO3 causes changes that are consistent with cellular transformation including anchorage-independent growth, enhanced migration ability, and gene expression changes that were likely epigenetically inherited.
File Format	HTM / HTML
ISSN	17565901
e-ISSN	1756591X
DOI	10.1039/c3mt00149k
Journal	Metallomics
Issue Number	10
Volume Number	5
Language	English
Publisher	Royal Society of Chemistry
Publisher Date	2013-10-01
Publisher Place	Great Britain (UK)
Access Restriction	Open
Subject Keyword	Discipline Biochemistry Bronchi Pathology Carcinogenesis Epithelial Cells Drug Effects Vanadates Toxicity Brca1 Protein Genetics Metabolism Blotting, Western Cell Line, Transformed Cell Movement Cell Survival Cluster Analysis Colony-forming Units Assay Desmocollins Gene Expression Regulation Rna, Messenger Research Support, N.i.h., Extramural
Content Type	Text
Resource Type	Article
Subject	Chemistry Medicine Metals and Alloys Biochemistry Biomaterials Biophysics

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Sodium metavanadate exhibits carcinogenic tendencies in vitro in immortalized human bronchial epithelial cells †

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