Description
Embelin (550-24-3) inhibits?the lysine acetyl transferase PCAF?in vitro and in vivo?(in vitro?IC50=7.2 mM). Inhibits H3K9 acetylation in mouse liver tissue while leaving levels of H3K14, H4K8, H4K12 unchanged.1? Also inhibits X-linked inhibitor of apoptosis (XIAP) (IC50 = 4.1 μM, competing with Smac peptide). Binds to the BIR3 domain, preventing XIAP interaction with caspase-9 and Smac. Induces apoptosis and alters gene expression profiles in breast cancer cells.3?Possesses anti-inflammatory and analgesic activity?in vivo.4?Cell-permeable.
Chemical Properties
Orange Solid
Uses
Embelin is a natural benzoquinone found in plants of the Myrsinaceae family. Embelin has a wide range of biological activity as it inhibits the growth of bacteria, fungi, protozoa and parasites. Embelin also displays contraceptive and pro-apoptotic properties.
Definition
ChEBI: A member of the class of dihydroxy-1,4-benzoquinones that is 2,5-dihydroxy-1,4-benzoquinone which is substituted by an undecyl group at position 3. Isolated from Lysimachia punctata and Embelia ribes, it exhibits antimicrobial, an
ineoplastic and inhibitory activity towards hepatitis C protease.
Biological Activity
Cell-permeable, non-peptide inhibitor of X-linked inhibitor of apoptosis (XIAP) (IC 50 = 4.1 μ M in competition binding assay with Smac peptide); binds to the BIR3 domain, preventing XIAP interaction with caspase-9 and Smac. Inhibits cell growth, induces apoptosis and activates caspase-9 in prostate cancer cells (IC 50 4-6 μ M), but has a weaker effect on normal prostate cells (IC 50 = 19-20 μ M). Overcomes the protective effect of XIAP on apoptosis in XIAP-transfected Jurkat cells. Anti-tumor, analgesic and anti-inflammatory in vivo .
References
1) Modak?et al. (2013),?Probing p300/CBP associated factor (PCAF)-dependent pathways with a small molecule inhibitor; ACS Chem. Biol.,?8?1311
2) Nikolovska-Coleska?et al. (2004),?Discovery of embelin as a cell-permeable, small-molecular weight inhibitor of XIAP through structure-based computational screening of a traditional herbal medicine three-dimensional structure database; J. Med. Chem.,?47?2430
3) Shah?et al.?(2016),?Embelin inhibits proliferation, induces apoptosis and alters gene expression profiles in breast cancer cells; Pharmacol. Rep.,?68?638
4) Chitra?et al. (1994),?Antitumor, anti-inflammatory and analgesic property of embelin, a plant product.; Chemotherapy,?40?109
