Physiology and Disease
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Nikos E. Tsopanoglou
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241x160x20 mm

In addition to its central role in blood coagulation, it has become increasingly apparent that thrombin and thrombin receptors are involved in many other physiological processes and can contribute to a variety of disease states such as tumor progression and metastasis, inflammation, neurological disorders and cardiovascular complications. This book is a collection of reviews of up-to-date information on the above topics by leaders in these fields.This book will be of value to researchers and academic professionals both in basic and clinical science who are interested in the fields of biochemistry, biophysics, cell biology, pharmacology, cancer, inflammation, angiogenesis, cardiovascular system and neuronal system. These areas of research are prime target areas for drug development by many pharmaceutical and biotechnology companies.
Stimulate interest in new targets of drug development and increase our present day understanding of the multiplicity of roles endowed to thrombin through the evolutionary process
Table of contents 1. Thrombin: structure, functions and regulation 1.1. Introduction 1.2. Thrombin and Na+ 1.3. Thrombin structure 1.4. Kinetics of Na+ activation 1.5. Structures of E*, E and E:Na+ 1.6. Thrombin interaction with protein C 1.7. Thrombin interaction with the PARs 1.8. Dissociating procoagulant and anticoagulant activities 1.9. WE: a prototypic anticoagulant/antithrombotic thrombin 1.10. References 2. Thrombin: to PAR or not to PAR, and the regulation of inflammation 2.1. Introduction 2.2. Thrombin and the search for its receptor 2.3. Enzymes other than thrombin that are potential physiological regulators of PARs 2.3.1. Enzymes of the coagulation pathway 2.3.2. Proteinases of the gastrointestinal tract 2.3.3. PAR-regulating proteinases in the central nervous system 2.3.4. Immune cell-derived proteinases and PARs 2.3.5. Tumor-derived proteinases and a possible physiological role for kallikrein-related peptidases (KLKs) as PAR regulators 2.3.6. Pathogen-derived proteinases and PAR activation 2.4. Receptor dynamics and cell signaling: enzyme versus peptide-mediated activation 2.4.1. PAR-mediated signaling 2.4.2. PAR activation by enzyme versus peptide 2.5. PAR activation and the inflammation actions of thrombin 2.6. Non-PAR mechanisms of cell regulation mediated by thrombin and other proteinases 2.6.1. Signaling targets that are not 'classical' receptors 2.6.2. Non-catalytic mechanisms for proteinase-mediated signaling 2.6.3. Thrombin-mediated generation of agonists from fibrin and other substrates 2.7. Therapeutic implications of thrombin action via PAR and non-PAR mechanisms 2.7.1. Targeting thrombin and other serine proteinases 2.7.2. Targeting the PARs 2.8. Summary 2.9. Acknowledgements 2.10. References 3. Regulation of thrombin receptor signaling 3.1. Introduction 3.2. Cell type specific expression of thrombin receptors 3.3. Thrombin receptor activation and signaling 3.3.1. Proteolytic mechanism of thrombin receptor activation 3.3.2. Thrombin receptor signaling to heterotrimeric G-proteins 3.3.3. Cell type specific thrombin receptor signaling 3.4. Regulation of thrombin receptor signaling 3.4.1. Thrombin receptor desensitization 3.4.2. Thrombin receptor internalization 3.4.3. Thrombin receptor down-regulation 3.5. PAR activation and signaling by other proteases 3.6. Conclusions 3.7. Acknowledgements 3.8. References 4. Thrombin-activated protein C: integrated to regulate vascular physiology 4.1. The protein C pathway is localized to the endothelial cell surface and limits thrombin generation through negative feedback 4.2. APC has protective effects in systemic inflammation that are independent of its anticoagulant function 4.3. The thrombin receptor PAR1 mediates APC signaling in tissues culture 4.4. APC and thrombin can mediate opposite cellular responses in endothelial cells through PAR1 activation 4.4.1. Barrier integrity 4.4.2. Adhesion molecule expression 4.4.3. Apoptosis 4.5. Role of the sphingosine-1 phosphate pathway in mediating protective signaling by PAR1. 4.6. Protective PAR1 signaling by APC is mechanistically coupled to PC activation by thrombin 4.7. Not PAR1- or EPCR-dependent mechanisms for signaling by the PC pathway? 4.8. Thrombin-PAR1 and APC-PAR1 signaling in in vivo models of inflammation 4.9. How can activation of the thrombin receptor PAR1 by the PC pathway be of physi
Thrombin and thrombin receptors are involved in many physiological processes and can contribute to a variety of disease states. This book will stimulate interest in new targets of drug development and increase our understanding of the multiplicity of thrombin.

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