Regulation of Immune Receptor Functional Responses by G Protein-coupled Receptor Kinases (GRKs) and Arrestins PDF Download

Author: Stefania Pasqua Mariggió
Publisher:
ISBN:
Category : Cell receptors
Languages : en
Pages :

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Author:
Publisher: Academic Press
ISBN: 0128124040
Category : Science
Languages : en
Pages : 400

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Book Description
G Protein-Coupled Receptors in Immune Response and Regulation, Volume 136 presents emerging concepts related to the role of GPCRs in immune response and regulation. Users will find updated chapters on a variety of topics, including Beta-adrenergic signaling in the onset and progression of asthma, the Emerging roles of Regulators of G protein signaling (RGS) proteins in the immune system, information on Kinin receptors in immune response and pathogenic infections, and sections on GPCR signaling in C. elegans and its implications in immune response, GPCR Kinases in Inflammatory response and signaling, and GRK2 in Inflammation: Regulation of T cell receptors and IgE signaling. Chapters in this book discuss not only the well-known aspects of GPCR signaling in immunology, but also presents many emerging paradigms that have not yet been reported in classical textbooks. Each chapter presents a forward-looking discussion, providing a glimpse of the tremendous potential associated with the specific receptor systems discussed. Brings together contributions from leading experts in the area of GPCR biology Discusses current paradigms and the future potential of understanding GPCR signaling in immune response and regulation Presents the first of its kind book to focus on specific GPCR systems in various aspects of immunology, all brought together in one volume

Author: Yuichi Hattori
Publisher: Frontiers Media SA
ISBN: 2889635473
Category :
Languages : en
Pages : 182

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Author:
Publisher: Academic Press
ISBN: 0128137738
Category : Science
Languages : en
Pages : 184

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Book Description
G Protein-Coupled Receptors: Emerging Paradigms in Activation, Signaling and Regulation, Part A, Volume 337 in the International Review of Cell and Molecular Biology series, reviews and details current advances in cell and molecular biology. The IRCMB series has a worldwide readership, maintaining a high standard by publishing invited articles on important and timely topics that are authored by prominent cell and molecular biologists. This new release includes comprehensive sections on the classical paradigms of GCPR signaling and regulation, the family of small GTPases: Beyond heterotrimeric G proteins, GPCR endocytosis: Arrestins, arrestin-like proteins, signaling from internalized G Protein-Coupled Receptors, GPCR kinases, and more. Publishes only invited review articles on selected topics Authored by established and active cell and molecular biologists whose work is drawn from international sources Offers a wide range of perspectives on specific subjects

Author: Katharina M. Glaser
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Abstract: G-protein coupled receptor kinases (GRKs) participate in the regulation of chemokine receptors by mediating receptor desensitization. They can be recruited to agonist-activated G-protein coupled receptors (GPCRs) and phosphorylate their intracellular parts, which eventually blocks signal propagation and often induces receptor internalization. However, there is growing evidence that GRKs can also control cellular functions beyond GPCR regulation. Immune cells commonly express two to four members of the GRK family (GRK2, GRK3, GRK5, GRK6) simultaneously, but we have very limited knowledge about their interplay in primary immune cells. In particular, we are missing comprehensive studies comparing the role of this GRK interplay for (a) multiple GPCRs within one leukocyte type, and (b) one specific GPCR between several immune cell subsets. To address this issue, we generated mouse models of single, combinatorial and complete GRK knockouts in four primary immune cell types (neutrophils, T cells, B cells and dendritic cells) and systematically addressed the functional consequences on GPCR-controlled cell migration and tissue localization. Our study shows that combinatorial depletions of GRKs have pleiotropic and cell-type specific effects in leukocytes, many of which could not be predicted. Neutrophils lacking all four GRK family members show increased chemotactic migration responses to a wide range of GPCR ligands, whereas combinatorial GRK depletions in other immune cell types lead to pro- and anti-migratory responses. Combined depletion of GRK2 and GRK6 in T cells and B cells shows distinct functional outcomes for (a) one GPCR type in different cell types, and (b) different GPCRs in one cell type. These GPCR-type and cell-type specific effects reflect in altered lymphocyte chemotaxis in vitro and localization in vivo. Lastly, we provide evidence that complete GRK deficiency impairs dendritic cell homeostasis, which unexpectedly results from defective dendritic cell differentiation and maturation in vitro and in vivo. Together, our findings demonstrate the complexity of GRK functions in immune cells, which go beyond GPCR desensitization in specific leukocyte types. Furthermore, they highlight the need for studying GRK functions in primary immune cells to address their specific roles in each leukocyte subset

Author: Vsevolod V. Gurevich
Publisher:
ISBN: 9781493937981
Category : Biomedicine
Languages : en
Pages : 329

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"This collection explores up-to-date descriptions of known G protein-coupled receptor kinase (GRK)-dependent mechanisms, both associated with G protein-coupled receptor (GPCR) functions and the receptor-independent. The chapters cover a wide range of studies from invertebrates to humans, with sections of the volume covering GRK structure, mechanisms of activation, and interaction with GPCRs, GRKs in cell signaling, as well as physiological and pathophysiological mechanisms regulated by GRKs. Written for the Methods in Pharmacology and Toxicology series, this book features the kind of practical detail necessary for success in the laboratory. Authoritative and timely, G Protein-Coupled Receptor Kinases features the kind of comprehensive mechanistic elucidation of GRK functions and their regulation in cells necessary for a better understanding of cell biology as well as for devising novel research approaches and therapeutic strategies." -- OCLC.

Author: Asma S. Alonazi
Publisher:
ISBN:
Category : Electronic books
Languages : en
Pages : 0

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G protein-coupled receptor kinases (GRKs), the negative regulators of G protein-coupled receptors (GPCRs), have a key role in cardiovascular disease pathophysiology. Alteration in GRKs,Äô expressions and/or kinase activity has been reported in preclinical animal models as well as in patients with cardiovascular diseases. This alteration might be a contributing factor to disease progression by a variety of mechanisms such as non-canonical transduction pathways. The current chapter is aimed to expand our knowledge and understanding of the function of GRKs in cardiovascular diseases, highlight their involvement, and illustrate the possible mechanistic role of GRKs in hypertensive vascular diseases and cardiac myopathy. The current chapter also is endeavoured to identify the potential molecular mechanisms by which GRKs participate in cardiovascular disease progression. Building the basics knowledge about GRKs in cardiovascular diseases will help to assess the potential utilization of GRKs as therapeutic targets and to examine the possible approaches to modulate their protein expression or to inhibit their kinase activity to prevent or attenuate cardiovascular disease progression.

Author: Jeffrey L. Benovic
Publisher: Wiley-Liss
ISBN: 9780471252771
Category : Medical
Languages : en
Pages : 0

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Book Description
Recent advances in molecular and cell biology enabling the cloning, expression, and mutagenesis of signal transduction proteins has prompted an explosion of knowledge in the field of receptor regulation, facilitating the discovery of new classes of regulatory proteins, and providing a basis and means for manipulating receptor function through multiple intracellular targets. This volume covers methods used to examine how the function(s) of receptors are regulated. Understanding how to regulate the function and expression of these receptors is critical in determining how to modify receptors and to translocating receptors away from the cell surface and its recycling. Individual chapters focus on specific techniques used to characterize receptors (epitope tagging, measurement and analysis of receptor phosphorylation, analysis of the kinetics of receptor desensitization, and assessment of receptor/G protein coupling); the role of regulatory proteins (receptor kinases and phosphatases, arrestins) in modulating receptor function; and the methods used to measure receptor trafficking (ligand binding, immunofluoresence) and expression (transcriptional and translational regulation). * Covers a broad range of important concepts and methodologies which are current in the study of G protein-coupled receptors (GPCRs) * G-protein coupled receptors make up over 40% of the current pharmacological targets * Provides detailed protocols for executing various strategies and offers informed judgments as to what approaches are and aren't useful * Volume Editor, Jeffrey Benovic, is a dominant world leader in the study of receptor regulation of GPCR kinases and is highly respected in the field

Author: Antonino Belfiore
Publisher: Springer
ISBN: 9783319446745
Category : Medical
Languages : en
Pages : 0

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This volume provides comprehensive coverage of the current knowledge of the physiology of the endocrine system and hormone synthesis and release, transport, and action at the molecular and cellular levels. It presents essential as well as in-depth information of value to both medical students and specialists in Endocrinology, Gynecology, Pediatrics, and Internal Medicine. Although it is well established that the endocrine system regulates essential functions involved in growth, reproduction, and homeostasis, it is increasingly being recognized that this complex regulatory system comprises not only hormones secreted by the classic endocrine glands but also hormones and regulatory factors produced by many organs, and involves extensive crosstalk with the neural and immune system. At the same time, our knowledge of the molecular basis of hormone action has greatly improved. Understanding this complexity of endocrine physiology is crucial to prevent endocrine disorders, to improve the sensitivity of our diagnostic tools, and to provide the rationale for pharmacological, immunological, or genetic interventions. It is such understanding that this book is designed to foster.

Author: Graeme Milligan
Publisher: Springer
ISBN: 3319506935
Category : Medical
Languages : en
Pages : 258

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This book highlights the important role free fatty acids (FFA) play as potential drug targets. While FFA have long been considered byproducts of cell metabolism, they are now recognized as ligands that regulate cell and tissue function via G-protein-coupled receptors. At least three receptors have been identified for which FFA appear to be the endogenous ligands.