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Pericosine A is a fungal metabolite that has been found in P. byssoides and has anticancer activity.1 It inhibits the growth of a variety of cancer cells, including breast, colon, lung, ovary, stomach, and prostate cell lines (GI50s = 0.05-24.55 μM) and increases survival in a P388 mouse xenograft model when administered at a dose of 25 mg/kg. Pericosine A inhibits EGFR by 40 to 70% when used at a concentration of 100 μg/ml. It also reacts with organosulfur compounds in skunk spray to form stable thioethers as odorless products.2

1.Yamada, T., Iritani, M., Ohishi, H., et al.Pericosines, antitumour metabolites from the sea hare-derived fungus Periconia byssoides. Structures and biological activitiesOrg. Biomol. Chem.5(24)3979-3986(2007) 2.Du, L., Munteanu, C., King, J.B., et al.An electrophilic natural product provides a safe and robust odor neutralization approach to counteract malodorous organosulfur metabolites encountered in skunk sprayJ. Nat. Prod.82(7)1989-1999(2019)

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