using combined immunoactivity assays specific for u-pa and t-pa activity and antigen , we found that both human renal microvascular and renal artery endothelial cells produced high levels of u-pa antigen ( 60.48 ng/10 ( 5 ) cells/24 h and 50.42 ng/10 ( 5 ) cells/24 h , respectively ) and corresponding levels of u-pa activity after activation with plasmin .
C0225336
endothelial cells
C0042071
u-pa