Costunolide and parthenolide from Champi Sirindhorn (Magnolia sirindhorniae) inhibit leukemic cell proliferation in K562 and molt-4 cell lines
2021
Saosathan, Sawalee | Khounvong, Jalernsri | Rungrojsakul, Methee | Katekunlaphan, Trinnakorn | Tima, Singkome | Chiampanichayakul, Sawitree | Berkland, Cory | Anuchapreeda, Songyot
The magnolia plant has been used in traditional medicine since ancient times. This study was designed to investigate the effects of active compounds from Thai Champi Sirindhorn (Magnolia sirindhorniae) on leukemic biomarker Wilms’ tumor 1 (WT1) protein expressions in K562 and Molt-4 cells. Costunolide (1) and parthenolide (2) were the major components used in this study, they were purified from ethyl acetate fractions. Costunolide (1) and parthenolide (2) had strong cytotoxic effects in K562 and Molt-4 cells measured with MTT assays. Their activities were compared to standard commercial costunolide (3) and parthenolide (4). Costunolide (1) and parthenolide (2) decreased WT1 protein levels and total cell numbers in K562 and Molt-4 cells. Both purified costunolide (1) and standard commercial costunolide (3) decreased WT1 protein levels in a time- and dose-dependent manner. Therefore, the active compounds from M. sirindhorniae were identified as promising sources for bioactive compounds for further applications in traditional medicine.
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