Wilkinson DI, Orenberg EK. Effects of nordihydroguaiaretic acid, phloretin, and phloridzin on the activity of adenylate cyclase, lipoxygenase and hexose transport, and growth of cultured keratinocytes.
Int J Dermatol 1987;
26:660-6. [PMID:
2828256 DOI:
10.1111/j.1365-4362.1987.tb02277.x]
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Abstract
Compounds related to the flavonoid group of natural products may have potential as antipsoriatic drugs. The dihydrochalcone phloretin, its glycoside derivative phloridzin, and the structurally related compound nordihydroguaiaretic acid (NDGA) were selected for study. Phloretin and NDGA strongly inhibited keratinocyte growth but had no effect on isoproterenol-stimulated adenylate cyclase; phloridzin had no effect on growth but potentiated the response of the enzyme. None had any effect on phosphodiesterase. Neither phloretin or phoridzin inhibited lipoxygenase or, surprisingly, decreased deoxyglucose transport. Phloretin and NDGA should be considered antipsoriatic agents.
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