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Goedde, M.F. (author), Grimbergen, J.M. (author), Toet, K.H. (author), Sitter, T. (author), Quax, P.H. (author), Kooistra, T. (author), Gaubius Instituut TNO (author)
Background. The mesothelium has an important role in maintaining an adequate fibrinolytic capacity in the peritoneal cavity and thus in preventing the formation of fibrinous peritoneal adhesions by secreting the fibrinolytic enzyme tissue-type plasminogen activator (t-PA). The fibrinolytic activity of human mesothelial cells (HMCs) is...
article 2001
document
Sitter, T. (author), Toet, K. (author), Quax, P. (author), Kooistra, T. (author), Gaubius instituut TNO (author)
Background. Human mesothelial cells (HMCs) have an important role in maintaining an adequately functioning fibrinolytic system in the peritoneal cavity by secreting the fibrinolytic enzymes tissue-type and urokinase-type plasminogen activator (t-PA and u-PA), as well as a specific PA inhibitor, PA inhibitor type 1 (PAI-1). In this study, we...
article 1999
document
Koopman, J.L. (author), Slomp, J. (author), de Bart, A.C.W. (author), Quax, P.H.A. (author), Verheijent, J.H. (author), Gaubius Instituut TNO (author)
The structural and functional properties of the urokinase-type plasminogen activator (u-PA) that are involved in the mitogenic effect of this proteolytic enzyme on human melanoma cells M14 and IF6 and the role of the u-PA receptor (u-PAR) in transducing this signal were analyzed. Native u- PA purified from urine induced a mitogenic response in...
article 1998
document
Padro, T. (author), Quax, P.H.A. (author), van den Hoogen, C.M. (author), Roholl, P. (author), Verheijen, J.H. (author), Emeis, J.J. (author), Gaubius Instituut TNO (author)
Plasminogen activator (PA) and PA inhibitor (PAI) antigen, activity, and mRNA were analyzed in the three layers of rat aorta, and the effect of endotoxin on PA and PAI was studied. All PA activity in aorta was identified as tissue-type PA (TPA) activity; no urokinase-type PA was detected. In the tunica adventitia TPA activity, TPA antigen, and...
article 1994
document
Quax, P.H.A. (author), van den Hoogen, M. (author), Verheijen, J.H. (author), Padro, T. (author), Zeheb, R. (author), Gelehrter, T.D. (author), van Berkel, T.J.C. (author), Kuiper, J. (author), Emeis, J.J. (author), Gaubius Instituut TNO (author)
The tissue-specific distribution of tissue-type and urokinase-type plasminogen activator (t-PA and u-PA) and their inhibitor type 1 (PAI-1) was analyzed at mRNA level in five major rat organ tissues. t-PA mRNA was detected in lung, kidney, heart, and liver. u-PA mRNA was detected in kidney and lung. Presence of PA mRNA correlated with the...
article 1990
document
Weening-Verhoeff, E.J.D. (author), Quax, P.H.A. (author), van Leeuwen, R.T.J. (author), Rehberg, E.F. (author), Marotti, K.R. (author), Verheijen, J.H. (author), Gaubius Instituut TNO (author)
article 1990
document
Quax, P.H.A. (author), van Leeuwen, R.T.J. (author), Verspaget, H.W. (author), Verheijen, J.H. (author), Gaubius Instituut TNO (author)
In 22 human tumor cell lines the regulation of production of plasminogen activators urokinase (u-PA) and tissue-type (u-PA) and their inhibitors PAI-1 and PAI-2 was studied. These four components may determine the net plasminogen activator activity, which is often associated with tumor development and metastatic processes. The amount of specific...
article 1990
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