Table 2.
Coagulation parameter | Proinflammatory Effects |
Thrombin generation | Promotes cytokine and chemokine synthesis (IL-6, IL-8) via PARs, P-selectin, E-selectin and PAF expression, which facilitates neutrophil–endothelial cell interactions, bradykinin and histamine release |
Factor Xa and TF–factor VIIa complex generation | Promotes cytokine and chemokine synthesis (IL-6, IL-8) via PAR-1 and PAR-2 |
Reduced antithrombin | Results in the loss of prostacyclin synthesis by endothelial cells, increased cytokine synthesis, increased leukocyte adherence and chemotaxis |
Reduced protein C/protein S activity | Results in increased E-selectin expression, increased cytokine generation and neutrophil adherence; promotes apoptosis of endothelial cells |
Reduced TFPI activity | Results in loss of regulation of cytokine synthesis within microcirculation |
Platelet activation | Platelet derived P-selectin promotes neutrophil adherence, neutrophil–endothelial cell interactions; platelet CD40 ligand promotes endothelial cell chemokine and adhesion molecule expression; activated platelets secrete chemokines and IL-1β |
Intravascular fibrin deposition | Neutrophil and monocyte adherence |
Reduced thrombomodulin expression on endothelial cells | Loss of TM lectin domain activity that inhibits neutrophil–endothelial cell adherence may promote neutrophil binding |
IL, interleukin; PAF, platelet-activating factor; PAR, protease activated receptor; TF, tissue factor; TFPI, tissue factor pathway inhibitor; TM, thrombomodulin.