Three-Dimensional Model of Mouse Epidermis for Experimental Studies of Psoriasis

摘要

Three-dimensional models of skin and epidermis imitate the structure of real tissues and provide accurate information about certain skin conditions, such as psoriasis. A three-dimensional model of mouse epidermis was generated from the epidermal keratinocytes of newborn mice and treated with cytokines. The aim of this study was to evaluate this model as an experimental model of psoriasis and to assess the changes occurring in its structure and gene expression after the exposure to proinflammatory cytokines. Treatment of the three-dimensional model with either interleukin 17 or a combination of tumor necrosis factor and interferon γ was shown to produce morphological changes, which were similar to acanthosis in psoriatic skin. The observed changes in gene expression of metalloproteinases and certain psoriasis biomarkers, such as mki67, krt16 and fosl1, were similar to the changes in patients’ skin. Notably, changes caused by interleukin 17 were less evident than those caused by the combination of interferon γ and tumor necrosis factor. On the contrary, HaCaT cells exhibited no significant changes in the expression of fosl1and had decreased levels of mki67 after being treatedwith a combination of TNF and IFNG. Moreover, treatment with IL17 had nosignificant effect on krt16 and mki67 expression and evenreduced the fosl1 levels. The findings suggest thatartificially generated three-dimensional models of murine skin can be used tostudy psoriasis.