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Please use this identifier to cite or link to this item: http://hdl.handle.net/10271/3143

Title: Effects of hydroxy groups in the A-ring on the anti-proteasome activity of flavone
Other Titles: フラボンの抗プロテアソーム活性におけるA環のヒドロキシル基の効果
Authors: Nakamura, Kasumi
中村, 佳寿美
Keywords: ubiquitin
flavonoid
proteasome
inhibitor
Issue Date: 1-Jun-2015
Publisher: 日本薬学会
Abstract: The ubiquitin–proteasome pathway plays an important role in regulating apoptosis and the cell cycle. Recently, proteasome inhibitors have been shown to have antitumor effects and have been used in anticancer therapy for several cancers such as multiple myeloma. Although some flavones, such as apigenin, chrysin and luteolin, have a specific role in the inhibition of proteasome activity and induced apoptosis in some reports, these findings did not address all flavone types. To further investigate the proteasome-inhibitory mechanism of flavonoids, we examined the inhibitory activity of 5,6,7-trihydroxyflavone, baicalein and 5,6,7,4′-tetrahydroxyflavone, scutellarein on extracted proteasomes from mice and cancer cells. Unlike the other flavones, baicalein and scutellarein did not inhibit proteasome activity or accumulate levels of ubiquitinated proteins. These results indicate that flavones with hydroxy groups at positions 5, 6 and 7 of the A-ring lack the anti-proteasome function.
Description: 浜松医科大学学位論文 医博第721号(平成28年3月14日)
URI: http://hdl.handle.net/10271/3143
DOI: Info:doi/10.1248/bpb.b15-00018
NII paper ID: http://ci.nii.ac.jp/naid/130005118804
PubMed ID: info:pmid/25810454
Academic Degrees and number: 13802甲第721号
Degree-granting date: 2016-03-14
Degree name: 博士(医学)
Degree-granting institutions: 浜松医科大学
Appears in Collections:2010 博士(論文)

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