Phosphatidylinositol-specific-phospholipase C cleaves urokinase plasminogen activator receptor from the cell surface and leads to inhibition of pemphigus-IgG-induced acantholysis in DJM-1 cells, a squamous cell carcinoma line.


We showed previously that pemphigus IgG enhanced both the activity of urokinase plasminogen activator (uPA) in cultured cells and the expression of its receptor (uPAR) on uPA-binding keratinocytes. In the present study, to clarify whether uPAR and uPA-activated plasmin are actually involved in the blistering process after pemphigus IgG binding to the cell… (More)


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