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Topoisomerase I and II Inhibitory Constituents from the Bark of Tilia amurensis
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  • Topoisomerase I and II Inhibitory Constituents from the Bark of Tilia amurensis
  • Topoisomerase I and II Inhibitory Constituents from the Bark of Tilia amurensis
저자명
Choi. Jae-Young,Seo. Chang-Seob,Zheng. Ming-Shan,Lee. Chong-Soon,Son. Jong-Keun
간행물명
Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea
권/호정보
2008년|31권 11호|pp.1413-1418 (6 pages)
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대한약학회
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정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Two coumarins (1 and 6), one flavan-3-ol (2), one fatty acid (3), and two lignan glycosides (4 and 5) were isolated from the EtOAc and $CH_2Cl_2$ extract of the bark of Tilia amurensis. Their chemical structures were identified by comparing their physicochemical and spectral data with those of published in literatures. Compounds 4, 5, and 6 were isolated from Tilia genus for the first time. Compounds 2 and 3 showed potent inhibitory activity against both DNA topoisomerase I ($IC_{50}$ values; $49{mu}M$ and $4{mu}M$, respectively, with $18{mu}M$ of positive control compound, comptothecin) and DNA topoisomerase II ($IC_{50}$ values; $13{mu}M$ and $3{mu}M$, respectively, with $50{mu}M$ of positive control compound, etoposide). However, all compounds did not showed cytotoxicity against the human colon adenocarcinoma cell line (HT-29), the human breast adenocarcinoma cell line (MCF-7), and human liver hepatoblastoma cell line (HepG-2).