Cellular retinoic acid-binding protein type 2 mRNA is overexpressed in human psoriatic skin as shown by in situ hybridization. |
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Authors: | L Didierjean B Durand J H Saurat |
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Institution: | Clinique de Dermatologie, H?pital Cantonal Universitaire, Genève, Switzerland. |
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Abstract: | In situ hybridization with full length mouse cellular retinoic acid-binding protein type 1 and cellular retinoic acid-binding protein type 2 cDNA derived RNA probes showed overexpression of cellular retinoic acid-binding protein type 2 mRNA in lesional hyperplastic psoriatic skin whereas cellular retinoic acid-binding protein type 1 mRNA was undetectable. This suggests that the previously reported increase of cellular retinoic acid-binding protein in psoriatic epidermis corresponds to increased translation of cellular retinoic acid-binding protein type 2 gene. Cellular retinoic acid-binding protein types 1 and 2 mRNAs were not detectable in normal epidermis; however, type 2 message was detected in non-hyperplastic, non-lesional skin of psoriatic patients thus before altered epidermal differentiation and hyperplasia are morphologically detectable. |
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