Matsuura H, Myokai F, Arata J, Noji S, Taniguchi S
Department of Dermatology, Okayama University Medical School, Japan.
J Dermatol Sci. 1994 Aug;8(1):25-32. doi: 10.1016/0923-1811(94)90317-4.
We studied the expression of the type II transforming growth factor-beta receptor mRNA in normal and psoriatic human skin in vivo. In situ hybridization analysis showed that its signals were expressed in the epidermal keratinocytes of the basal, the spinous and the granular layer, although no significant signals were observed in the fibroblasts or endothelial cells of the dermis. The follicular epithelium also expressed the type II transforming growth factor-beta receptor mRNA. There was no difference in the pattern of DNA expression between normal and psoriatic skin. These results suggest that the mRNA of the type II transforming growth factor-beta receptor is mainly expressed in the epithelial components of skin and controls the proliferation of the epidermis.
