Thromb Haemost 1995; 73(03): 421-428
DOI: 10.1055/s-0038-1653791
Original Articles
Coagulation
Schattauer GmbH Stuttgart

Lymphocyte Adhesion to Human Endothelial Cells Induces Tissue Factor Expression via a Juxtacrine Pathway

Esther Schmid
3   The Department of Pharmacological Research, Dr. Karl Thomae GmbH, Biberach/Riß, Germany
,
Thomas H Müller
3   The Department of Pharmacological Research, Dr. Karl Thomae GmbH, Biberach/Riß, Germany
,
Ralph-M Budzinski
1   Department of Biochemical Research, Dr. Karl Thomae GmbH, Biberach/Riß, Germany
,
Klaus Pfizenmaier
2   Institute for Cell Biology and Immunology, University of Stuttgart, Stuttgart, Germany
,
Klaus Binder
3   The Department of Pharmacological Research, Dr. Karl Thomae GmbH, Biberach/Riß, Germany
› Institutsangaben
Weitere Informationen

Publikationsverlauf

Received31. August 1994

Accepted after resubmission 22. November 1994

Publikationsdatum:
26. Juli 2018 (online)

Preview

Summary

To study the effect of lymphocyte adhesion on the procoagulant activity of endothelial cells, we have stimulated HUVECs with interferon-γ to upregulate adhesion molecules. Subsequent addition of lymphocytes induced the expression of tissue factor (TF) by HUVECs. Both CD4+ and CD8+ T-cells promoted this TF synthesis via distinct adhesion molecules (CD4+ T-cells: E-selectin and ICAM-1; CD8+ T-cells: MHC-I molecules). In addition, tumor necrosis factor-α and -β (TNFα, TNFβ) and platelet-activating factor (PAF) were involved in lymphocyte-mediated TF expression on HUVECs. We demonstrate that PAF plays a pivotal role in this process. Adhesion of lymphocytes to endothelial cell surface molecules induced the release of PAF. PAF, in turn, caused the production of T.NFα and TNFβ, both of which are potent stimulators of TF expression.