Overexpression of the 78-kDa Glucose-regulated Protein/Immunoglobulin-binding Protein (GRP78/BiP) Inhibits Tissue Factor Procoagulant Activity*

Previous studies have demonstrated that overexpression of GRP78/BiP, an endoplasmic reticulum (ER)-resident molecular chaperone, in mammalian cells inhibits the secretion of specific coagulation factors. However, the effects of GRP78/BiP on activation of the coagulation cascade leading to thrombin generation are not known. In this study, we examined whether GRP78/BiP overexpression mediates cell surface thrombin generation in a human bladder …