Evaluation of Hyperforin Analogues for Inhibition of 5-lipoxygenase

Author(s): Christian Feißt, Dana Albert, Luisella Verotta, Oliver Werz.

Journal Name: Medicinal Chemistry

Volume 1 , Issue 3 , 2005

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Abstract:

The acylphloroglucinol hyperforin, a constituent of the herb Hypericum perforatum (St. Johns wort), was recently identified as potent and direct inhibitor of 5-lipoxygenase (5-LO), the key enzyme in the biosynthesis of proinflammatory leukotrienes. In this study, naturally occurring analogues of hyperforin, isolated from H. perforatum, as well as a series of synthetic derivatives obtained by chemical modification of hyperforin by acylation, alkylation or oxidation, were analysed for the inhibition of 5-LO. The efficacies of these compounds were evaluated in intact human polymorphonuclear leukocytes, but also the inhibitory effects on isolated recombinant human 5-LO were investigated. Our data show that some of the oxidised hyperforin derivatives possess even improved efficacy, whereas alkylation and acylation have detrimental effects.

Keywords: hyperforin, hypericum perforatum, 5-lipoxygenase, leukotriene, inflammation, polymorphonuclear leukocyte.

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Article Details

VOLUME: 1
ISSUE: 3
Year: 2005
Page: [287 - 291]
Pages: 5
DOI: 10.2174/1573406053765503
Price: $58

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