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8-hydroxycudraxanthone G suppresses IL-8 production in SP-C1 tongue cancer cells
Abstract:
Production of IL-8 primarily promotes angiogenic responses in cancer cells, which lead to favorable disease progression. Suppressing this production may, therefore, be a significant therapeutic intervention in targeting tumor angiogenesis. This study aimed to evaluate the reduction effects of xanthones in cancer cell lines. Nine known prenylated xanthones (1-9), isolated from the pericarp of Garcinia mangostana Linn (GML), were tested for their ability to suppress IL-8 (interleukin-8) of the SP-C1 (Supri's Clone 1) tongue cancer cell line. Of these compounds, 8-hydroxycudraxanthone-G (4) suppressed IL-8 within 48 hours. This is the first report of 8-hydroxycudraxanthone G suppressing the production of IL-8 (45% at 15.7 microg/mL in 48 hours). These results suggest that the prolonged suppression of IL-8 production by cancer cell lines is concerned in the anti-cancer activity of 8-hydroxycudraxanthone.
Insights
This study found that 8-hydroxycudraxanthone G, a compound from Garcinia mangostana, effectively suppresses interleukin-8 (IL-8) production in tongue cancer cells. This finding offers potential for new anti-cancer therapies targeting tumor angiogenesis.
Area of Science:
- Pharmacology
- Oncology
- Natural Products Chemistry
Background:
- Interleukin-8 (IL-8) production promotes tumor angiogenesis and disease progression in cancer.
- Targeting IL-8 production represents a potential therapeutic strategy against cancer.
Purpose of the Study:
- To investigate the potential of prenylated xanthones from Garcinia mangostana Linn (GML) to suppress IL-8 production in cancer cells.
- To identify specific xanthone compounds with IL-8 inhibitory activity.
Main Methods:
- Isolation of nine prenylated xanthones from GML pericarp.
- Testing the ability of these xanthones to suppress IL-8 production in the SP-C1 tongue cancer cell line.
- Quantification of IL-8 suppression by effective compounds.
Main Results:
- 8-hydroxycudraxanthone G (compound 4) demonstrated significant suppression of IL-8 production.
- Suppression of IL-8 was observed within 48 hours at a concentration of 15.7 microg/mL (45% reduction).
- This is the first report detailing the IL-8 suppressive activity of 8-hydroxycudraxanthone G.
Conclusions:
- 8-hydroxycudraxanthone G exhibits potent IL-8 suppressive activity in tongue cancer cells.
- The prolonged suppression of IL-8 by 8-hydroxycudraxanthone G suggests its potential role in anti-cancer activity.
- These findings highlight the therapeutic potential of GML-derived xanthones in targeting tumor angiogenesis.
