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Article
July 1981

Topical Drug Effects on Normal and Proliferating Epidermal Cell ModelsComparison With Responses in Psoriatics

Author Affiliations

From the Combined UCLA-Veterans Administration Wadsworth Dermatology Program, University of California, Los Angeles (Dr Lowe); Division of Dermatology, University of California, San Diego (Dr Stoughton); and Department of Dermatology, University of California, Irvine (Drs McCullough and Weinstein).

Arch Dermatol. 1981;117(7):394-398. doi:10.1001/archderm.1981.01650070022015
Abstract

• The effects of 28 different potential antiproliferative agents applied topically to normal and hyperproliferative hairless mouse skin were studied. Epidermal cell hyperproliferation was induced by an essential fatty acid-deficient diet or by irradiation with short-wavelength ultraviolet (UV) energy. Epidermal DNA synthesis was measured by hydroxyapatite column chromatography. We compared the effects of these drugs used on normal and hyperproliferative hairless mouse skin with clinical responses in patients with psoriasis treated using the same topical preparations. For most of the drugs tested, the normal and essential fatty acid-deficient mouse model effects showed a good correlation with clinical responses seen in treated patients with psoriasis. The short-wavelength UV energy-treated mouse model effects showed a poorer clinical correlation, perhaps partially caused by wide variations in DNA synthetic rates encountered in the epidermis in this model.

(Arch Dermatol 1981;117:394-398)

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