Isolation of Biflavonoids from Indonesian Araucaria Cunninghamii Mudie Leaves and Their Activity Against MCF7 Cells and 20S Proteasome
DOI:
https://doi.org/10.48048/tis.2025.9198Keywords:
Amentoflavone, Biflavonoid, Cupressuflavone, MCF7, Proteasome, RobustaflavoneAbstract
To enhance our survey of Araucaria biflavonoid’s biological activity, Araucaria cunninghamii Mudie dried leaf samples from West Java, Indonesia were extracted using acetone, then purified by Sephadex column and silica gel radial chromatography to give 3 known pure compounds: 7,4′,7″,4‴-tetra-O-methyl cupressuflavone, 7,4′,4‴-tri-O-methylrobustaflavone, and 7,7″-di-O-methylamentoflavone. This is the first report of 7,4′,4‴-tri-O-methylrobustaflavone and 7,7″-di-O-methylamentoflavone isolation from A. cunninghamii Mudie species. Among the isolated compounds, 7,7″-di-O-methylamentoflavone showed the best activity towards the MCF7 cancer cell line (IC50 = 150 μM). The ELISA assay exhibited a 32 % decrease in the detected 20S proteasome concentration level in the MCF7 lysate samples treated with 25 ppm 7,7″-di-O-methylamentoflavone.
HIGHLIGHTS
- This is the first research on the phytochemical composition of Araucaria cunninghamii Mudie leaves from Taman Bunga Nusantara, West Java, Indonesia.
- This is the first report of 7,4′,4‴-tri-O-methylrobustaflavone and 7,7″-di-O-methylamentoflavone isolation from Araucaria cunninghamii Mudie species.
- The isolated biflavonoids show moderate to weak cytotoxic activity towards MCF7 cells.
- Biflavonoids-treated MCF7 cell lysates show lower proteasome levels based on ELISA assay.
GRAPHICAL ABSTRACT

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