13-cis-retinoic acid competitively inhibits 3 alpha-hydroxysteroid oxidation by retinol dehydrogenase RoDH-4: a mechanism for its anti-androgenic effects in sebaceous glands?
2003 (English)In: Biochemical and Biophysical Research Communications - BBRC, ISSN 0006-291X, Vol. 303, no 1, 273-278 p.Article in journal (Refereed) Published
Retinol dehydrogenase-4 (RoDH-4) converts retinol and 13-cis-retinol to corresponding aldehydes in human liver and skin in the presence of NAD(+). RoDH-4 also converts 3 alpha-androstanediol and androsterone into dihydrotestosterone and androstanedione, which may stimulate sebum secretion. This oxidative 3 alpha-hydroxysteroid dehydrogenase (3 alpha-HSD) activity of RoDH-4 is competitively inhibited by retinol and 13-cis-retinol. Here, we further examine the substrate specificity of RoDH-4 and the inhibition of its 3 alpha-HSD activity by retinoids. Recombinant RoDH-4 oxidized 3,4-didehydroretinol-a major form of vitamin A in the skin-to its corresponding aldehyde. 13-cis-retinoic acid (isotretinoin), 3,4-didehydroretinoic acid, and 3,4-didehydroretinol, but not all-trans-retinoic acid or the synthetic retinoids acitretin and adapalene, were potent competitive inhibitors of the oxidative 3 alpha-HSD activity of RoDH-4, i.e., reduced the formation of dihydrotestosterone and androstandione in vitro. Extrapolated to the in vivo situation, this effect might explain the unique sebosuppressive effect of isotretinoin when treating acne.
Place, publisher, year, edition, pages
2003. Vol. 303, no 1, 273-278 p.
Acne, Isotretinoin, Retinol dehydrogenase, Skin, Epidermis, Retinoid, Enzyme kinetics, Androgen, Retinoic acid
Medical and Health Sciences Dermatology and Venereal Diseases
Research subject Dermatology and Venerology
IdentifiersURN: urn:nbn:se:uu:diva-65685DOI: 10.1016/S0006-291X(03)00332-2PubMedID: 12646198OAI: oai:DiVA.org:uu-65685DiVA: diva2:93596