Horiuchi Y, Marshall JM, Cederholm-Williams SA, Ryan TJ.
DOI: 10.2340/0001555572401402

The present study examined secretion of urokinase and tissue-plasminogen activator by epidermal cells in the presence of psoriatic or uninvolved skin fibroblast-conditioned medium. Using zymographic analyses, a 54kD lysis band and a small 110kD band derived from urokinase could be detected in the harvest fluid from keratinocytes treated with both psoriatic and uninvolved fibroblast-conditioned medium, as well as very weak lysis bands of 63kD and 120kD derived from tissue-plasminogen activator in the harvest fluid treated with psoriatic fibroblast-conditioned medium, but not with uninvolved fibroblast-conditioned medium.