previous studies have shown that mononuclear cell-conditioned medium ( mccm ) , interleukin-1 ( il-1 ) , and all-trans-retinoic acid rapidly stimulate , while glucocorticoids lower , the urokinase-type plasminogen activator ( u-pa ) activity of human synovial fibroblast-like cells .
C0016030
fibroblast
C0007634
cells