Humudifucol and Bioactive Prenylated Polyphenols from Hops (Humulus lupulus cv. "Cascade")

Abstract:

Humulus lupulus (hop plant) has long been used in traditional medicine as a sedative and antimicrobial agent. More recently, attention has been devoted to the phytoestrogenic activity of the plant extracts as well as to the anti-inflammatory and chemopreventive properties of the prenylated chalcones present. In this study, an Italian sample of H. lupulus cv. "Cascade" has been investigated and three new compounds [4-hydroxycolupulone (6), humudifucol (7) and cascadone (8)] have been purified and identified by means of NMR spectroscopy along with four known metabolites. Notably, humudifucol (7) is the first prenylated dimeric phlorotannin discovered in nature. Because structurally related phloroglucinols from natural sources were found previously to inhibit microsomal prostaglandin E2 synthase (mPGES)-1 and 5-lipoxygenase (5-LO), the isolated compounds were evaluated for their bioactivity against these pro-inflammatory target proteins. The prenylated chalcone xanthohumol inhibited both enzymes at low muM concentrations.

SEEK ID: https://data.chembiosys.de/publications/16

PubMed ID: 26918635

Projects: A4

Journal: J Nat Prod

Citation:

Date Published: 27th Feb 2016

Authors: M. Forino, Simona Pace, G. Chianese, L. Santagostini, Markus Werner, C. Weinigel, S. Rummler, G. Fico, Oliver Werz, O. Taglialatela-Scafati

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Created: 29th Feb 2016 at 08:32

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