Investigation of protein expression in magnetic field-treated human glioma cells.

Investigation of protein expression in magnetic field-treated human glioma cells. Research Abstract Details 

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Investigation of protein expression in magnetic field-treated human glioma cells. Abstract Text:

M H Kanitz,F A Witzmann,W G Lotz,D Conover,R E Savage,M H Kanitz,F A Witzmann,W G Lotz,D Conover,R E Savage,

We previously reported phenotypic changes in human breast cancer cells following low-level magnetic field (MF) exposure. Here proteomic methods were used to investigate the biochemical effect of MF exposure in SF767 human glioma cells. Protein alterations were studied after exposure to 1.2 microTesla (microT) MF [12 milliGauss (mG), 60 Hertz (Hz)] +/- epidermal growth factor (EGF). SF767 cells were exposed for 3 h to sham conditions (<0.2 microT ambient field strength) or 1.2 microT MF (+/-EGF; 10 ng/ml). Solubilized protein fractions (sham; 1.2 microT; sham + EGF; 1.2 microT + EGF) were loaded for electrophoresis by 2D-PAGE and stained using a colloidal Coomassie blue technique to resolve and characterize the proteins. Protein patterns were compared across groups via Student's t-test using PDQUEST software. Cell profiles revealed significant alterations in the spot density of a subset of treated cells. Automated spot excision and processing was performed prior to peptide mass fingerprinting proteins of interest. Fifty-seven proteins from the detectable pool were identified and/or found to differ significantly across treatment groups. The mean abundance of 10 identified proteins was altered following 1.2 microT exposure. In the presence of EGF six proteins were altered after low magnetic field treatment by increasing (4) or decreasing (2) in abundance. The results suggest that the analysis of differentially expressed proteins in SF767 cells may be useful as biomarkers for biological changes caused by exposure to magnetic fields.

Investigation of protein expression in magnetic field-treated human glioma cells. Publishing Authors By Initials

MH Kanitz,FA Witzmann,WG Lotz,D Conover,RE Savage,MH Kanitz,FA Witzmann,WG Lotz,D Conover,RE Savage,

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Investigation of protein expression in magnetic field-treated human glioma cells. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Bioelectromagnetics

VOLUME: 28

Page Numbers: 546-52

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ISSN: 0197-8462

DAY: 20

MONTH: Oct

YEAR: 2007

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LANGUAGE: eng

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AFFILIATION: National Institute for Occupational Safety and Health, Cincinnati, Ohio 45226-1998, USA. mhk2@cdc.gov

Country: United States

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MEDLINETA: Bioelectromagnetics

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