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논문 기본 정보

자료유형
학술저널
저자정보
Kang, Se-Chan (Gyeonggi Pharmaceutical Research Center) Lee, Chang-Min (College of Pharmacy, Sungkyunkwan University) Choung, Eui-Su (College of Pharmacy, Sungkyunkwan University) Bak, Jong-Phil (College of Pharmacy, Sungkyunkwan University) Bae, Jong-Jin (College of Pharmacy, Sungkyunkwan University) Yoo, Hyun-Sook (College of Pharmacy, Sungkyunkwan University) Kwak, Jong-Hwan (College of Pharmacy, Sungkyunkwan University) Zee, Ok-Pyo (College of Pharmacy, Sungkyunkwan University)
저널정보
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 제31권 제6호
발행연도
2008.1
수록면
722 - 726 (5page)

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The Rheum palmatum L., a traditional medicine in Korea, was screened for their estrogenic activity in a recombinant yeast system with a human estrogen receptor (ER) expression plasmid and a reporter plasmid used in a previous study. The $EC_{50}$ values of the n-hexane, dichloromethane, ethyl acetate, n-butanol, and water fractions of the methanolic extract of R. palmatum in the yeast-based estrogenicity assay system were 0.145, 0.093, 0.125, 1.459, $2.853\;{\mu}g/mL$, respectively, with marked estrogenic activity in the dichloromethane fraction. Using an activity-guided fractionation approach, five known anthraquinones, chrysophanol (1), physcion (2), emodin (3), aloe-emodin (4) and rhein (5), were isolated from the dichloromethane fraction. Compound 3 had the highest estrogenic relative potency (RP, 17bestradiol = 1.00) ($6.3{\times}10^{-2}$), followed by compound 4 ($3.8{\times}10^{-3}$), compound 5 ($2.6{\times}10^{-4}$), and compound 1 ($2.1{\times}10^{-4}$). Also, compound 3 and fraction 3 (which contained compound 3) of the dichloromethane fraction of R. palmatum showed strong cytotoxicity in both ER-positive (MCF-7) and -negative (MDA-MB-231) breast cancer cell lines.

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