Eurycomanone and eurycomanol from Eurycoma longifolia Jack as regulators of signaling pathways involved in proliferation, cell death and inflammation.

Abstract

Eurycomanone and eurycomanol are two quassinoids from the roots of Eurycoma longifolia Jack. The aim of this study was to assess the bioactivity of these compounds in Jurkat and K562 human leukemia cell models compared to peripheral blood mononuclear cells from healthy donors. Both eurycomanone and eurycomanol inhibited Jurkat and K562 cell viability and proliferation without affecting healthy cells. Interestingly, eurycomanone inhibited NF-κB signaling through inhibition of IκBα phosphorylation and upstream mitogen activated protein kinase (MAPK) signaling, but not eurycomanol. In conclusion, both quassinoids present differential toxicity towards leukemia cells, and the presence of the α,β-unsaturated ketone in eurycomanone could be prerequisite for the NF-κB inhibition.

• Authors: Shéhérazade Hajjouli, Sébastien Chateauvieux, Marie-Hélène Teiten, Barbora Orlikova, Marc Schumacher, Mario Dicato, Chee-Yan Choo, Marc Diederich
• Journal: Molecules (Basel, Switzerland) (Molecules) Vol. 19 Issue 9 Pg. 14649-66 (Sep 16 2014) ISSN: 1420-3049 [Electronic] Switzerland
• PMID: 25230121 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• NF-kappa B
• Plant Extracts
• Quassins
• eurycomanone
• eurycomanol

Topics

• Cell Death (drug effects)
• Cell Proliferation (drug effects)
• Eurycoma (chemistry)
• Humans
• Inflammation (drug therapy, metabolism)
• Jurkat Cells
• Leukemia (drug therapy, metabolism, pathology)
• Leukocytes, Mononuclear (drug effects)
• NF-kappa B (antagonists & inhibitors, metabolism)
• Plant Extracts (administration & dosage, chemistry)
• Quassins (administration & dosage, chemistry)
• Signal Transduction (drug effects)