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KMID : 1140220140190040265
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대한암예방학회지
2014 Volume.19 No. 4 p.265 ~ p.272
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Pycnogenol Induces Nuclear Translocation of Apoptosis-inducing Factor and Caspase-independent Apoptosis in MC-3 Human Mucoepidermoid Carcinoma Cell Line
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Yang In-Hyoung
Shin Ji-Ae
Cho Sung-Dae
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Abstract
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Background: Pycnogenol is extracted from the pine bark of a tree known as Pinus pinaster that has variety biological effects. However, its anticancer activity has not yet been completely studied. The aim of this study is to investigate anticancer effect of pycnogenol in MC-3 human mucoepidermoid carcinoma (MEC) cell line.
Methods: We describe the effect of anti-cancer of pycnogenol in MC-3 human oral MEC cells using trypan blue exclusion assay, 3-(4,5-dimethylthiazol-2-yl)-(3-carboxymethoxyphenyl)-2-(4-sulphophenyl)-2H-tetrazolium (MTS) assay, Western blot, preparation of cytosolic and nuclear fractions, immunocytochemistry and reverse transcriptase polymerase chain reaction.
Results: Pycnogenol significantly decreased cell viability and also induced caspase-independent apoptosis. We confirmed that pycnogenol induced the translocation of apoptosis-inducing factor into nucleus and regulated apoptosis. Also, Bak protein stability was partly enhanced by pycnogenol to elevate the expression level of Bak protein.
Conclusions: Overall, pycnogenol may be a fascinating therapeutic drug candidate for the treatment of MEC.
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KEYWORD
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Electrical stimulation, Quadriceps muscle, muscle
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