Regulation Of Immune System Cell Functions By Protein Kinase C
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Regulation Of Immune System Cell Functions By Protein Kinase C
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Author : Noah Isakov
language : en
Publisher: Frontiers E-books
Release Date : 2014-11-11
Regulation Of Immune System Cell Functions By Protein Kinase C written by Noah Isakov and has been published by Frontiers E-books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-11-11 with Immunologic diseases. Allergy categories.
Members of the protein kinase C (PKC) family of Ser/Thr kinases are encoded by nine distinct but closely related genes, which give rise to more than 12 different protein isoforms via a mechanism of alternative RNA splicing. Most PKC proteins are ubiquitously expressed and participate in a plethora of functions in most cell types. A majority of PKC isoforms is also expressed in cells of the immune system in which they are involved in signal transduction downstream of a range of surface receptors, including the antigen receptors on T and B lymphocytes. PKC proteins are central to signal initiation and propagation, and to the regulation of processes leading to immune cell proliferation, differentiation, homing and survival. As a result, PKC proteins directly impact on the quality and quantity of immune responses and indirectly on the host resistance to pathogens and tendency to develop immune deficiencies and autoimmune diseases. A significant progress was made in recent years in understanding the regulation of PKC enzymes, their mechanism of action and their role in determining immunocyte behavior This volume reviews the most significant contributions made in the field of immune cell regulation by PKC enzymes. Several manuscripts are devoted to the role of distinct PKC isoforms in the regulation of selected immunocyte responses. Additional manuscripts review more general mechanisms of regulation of PKC enzymes, either by post-translational modifications, such as phosphorylation or controlled proteolysis, or by interaction with different binding proteins that may alter the conformation, activity and subcellular location of PKC. Both types of mechanisms can introduce conformational changes in the molecule, which may affect its ability to interact with cofactors, ATP, or substrates. This topic will be followed by a discussion on the positive and negative impact of individual PKC isoforms on cell cycle regulation. A second section of this volume concentrates on selected topics relevant to role of the novel PKC isoform, PKC-theta, in T lymphocyte function. PKC-theta plays important and some non-redundant roles in T cell activation and is a key isoform that recruits to the immunological synapse - the surface membrane area in T cells that comes in direct contact with antigen presenting cells. The immunological synapse is formed in T cells within seconds following the engagement of the TCR by a peptide-bound MHC molecule on the surface of antigen-presenting cells. It serves as a platform for receptors, adaptor proteins, and effector molecules, which assemble into multimolecular activation complexes required for signal transduction. The unique ability of PKC-theta to activate the NF-kB, AP-1 and NF-AT transcription factors is well established, and recent studies contributed essential information on the mechanisms involved in the recruitment of PKC-theta to the center of the immunological synapse and the nature of its substrates and the role of their phosphorylated forms in signal transduction. Additional review manuscripts will describe the unique behavior of PKC-theta in regulatory T cells and its role in the regulation of other cell populations, including those of the innate immune response. This volume brings together leading experts from different disciplines that review the most recent discoveries and offer new perspectives on the contributions of PKC isoforms to biochemical processes and signaling events in different immune cell populations and their impact on the overall host immune response.
Adaptor Protein Regulation In Immune Signalling
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Author : Navin Kumar Verma
language : en
Publisher: Frontiers Media SA
Release Date : 2020-05-21
Adaptor Protein Regulation In Immune Signalling written by Navin Kumar Verma and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-05-21 with categories.
Cytoskeletal Regulation Of Immune Response
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Author : Sudha Kumari
language : en
Publisher: Frontiers Media SA
Release Date : 2022-01-04
Cytoskeletal Regulation Of Immune Response written by Sudha Kumari and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-01-04 with Science categories.
Cell Signalling
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Author : John T. Hancock
language : en
Publisher: Oxford University Press
Release Date : 2017
Cell Signalling written by John T. Hancock and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Science categories.
Signaling within and between cells is one of the most important aspects of modern biochemistry and cell biology. An understanding of signalling pathways is vital to a wide range of biologists, from those who are investigating the causes of cancer, to those who are concerned about the impact of environmental pollutants on the ecosystem. The way cells adapt to changing environments, and the way cell dysfunction causes disease, is underpinned by cell signalling events. Cell Signalling presents a carefully structured and highly accessible introduction to this intricate and rapidly growing field. Starting with an overview of cell signalling and highlighting its importance in many biological systems, the book goes on to explore the key components of extracellular and intracellular signalling mechanisms, before examining how these components come together to create signalling pathways. A focus on common components and concepts, rather than mechanistic detail, allows the reader to gain a thorough understanding of the principles that underpin cell signalling. Online Resource Centre The Online Resource Centre to accompany Cell Signalling features: For students: - Links to useful websites For registered adopters of the text: - Journal Clubs: suggested research papers and discussion questions linked to topics featured in the book - Figures from the book in electronic format for use in lectures
Molecular Dynamics At The Immunological Synapse
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Author : Pedro Roda-Navarro
language : en
Publisher: Frontiers Media SA
Release Date : 2017-03-21
Molecular Dynamics At The Immunological Synapse written by Pedro Roda-Navarro and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-21 with categories.
The immunological synapse (IS) is a specialised cell-cell adhesion that mediates antigen acquisition and regulates the activation of lymphocytes. Initial studies of the IS showed a structure composed of stable supra-molecular activation clusters (SMAC) organised during the interaction of helper T lymphocytes with B lymphocytes, working as antigen presenting cells. A central SMAC of coalesced T cell receptors (TCRs) and a peripheral SMAC for cell-cell adhesion were observed. IS with similar structure was later described during antigen acquisition by B cells and during the interaction of NK cells with target and healthy cells. More recent research developed with microscopy systems that improve the spatial and temporal resolution has showed the complex molecular dynamics at the IS that governs lymphocyte activation. Currently, the IS is seen as a three-dimensional structure where signalling networks for lymphocyte activation and endosomal and cytoskeleton machinery are polarised. A view has emerged in which dynamic microclusters of signalling complexes are composed of molecular components attached to the plasma membrane and other components conveyed on sub-synaptic vesicles transported to the membrane by cytoskeletal fibers and motor proteins. Much information is nonetheless missing about how the dynamics of the endosomal compartment, the cytoskeleton, and signalling complexes are reciprocally regulated to achieve the function of lymphocytes. Experimental evidence also suggests that the environment surrounding lymphocytes exposed to different antigenic challenge regulates IS assembly and functional output, making an even more complex scenario still far from being completely understood. Also, although some signalling molecular components for lymphocyte activation have been identified and thoroughly studied, the function of other molecules has not been yet uncovered or deeply characterised. This research topic aims to provide the reader with the latest information about the molecular dynamics governing lymphocyte activation. These molecular dynamics dictate cell decisions. Thus, we expect that understanding them will provide new avenues for cell manipulation in therapies to treat different immune-related pathologies.
Protein Kinase Mediated Decisions Between Life And Death
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Author : Ayse Basak Engin
language : en
Publisher: Springer Nature
Release Date : 2021-02-04
Protein Kinase Mediated Decisions Between Life And Death written by Ayse Basak Engin and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-02-04 with Medical categories.
Protein phosphorylation via protein kinases is an inevitable process that alters physiological and pathological functions of the cells. Thus, protein kinases play key roles in the regulation of cell life or death decisions. Protein kinases are frequently a driving factor in a variety of human diseases including aging and cellular senescence, immune system and endothelial dysfunctions, cancers, insulin resistance, cholestasis and neurodegenerative diseases, as well as bacterial resistance in persistent infections. Recent developments in quantitative proteomics provide important opinions on kinase inhibitor selectivity and their modes of action in the biological context. Protein Kinase-mediated Decisions Between Life and Death aims to have the reader catch insights about up-to-date opinions on “Protein Kinases” related pathways that threaten human health and life. As “Protein Kinases” are related to many health problems, clinicians, basic science researchers and students need this information. Chapter “Signal Transduction in Immune Cells and Protein Kinases” is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.
Cell Signaling In Host Pathogen Interactions The Host Point Of View
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Author : Diana Bahia
language : en
Publisher: Frontiers Media SA
Release Date : 2018-03-23
Cell Signaling In Host Pathogen Interactions The Host Point Of View written by Diana Bahia and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-03-23 with categories.
The ability of pathogens, such as parasites, bacteria, fungi and viruses to invade, persist and adapt in both invertebrate and vertebrate hosts is multifactorial and depends on both pathogen and host fitness. Communication between a pathogen and its host relies on a wide and dynamic array of molecular interactions. Through this constant communication most pathogens evolved to be relatively benign, whereas killing of its host by a pathogen represents a failure to adapt. Pathogens are lethal to their host when their interaction has not been long enough for adaptation. Evolution has selected conserved immune receptors that recognize signature patterns of pathogens as non-self elements and initiate host innate responses aimed at eradicating infection. Conversely, pathogens evolved mechanisms to evade immune recognition and subvert cytokine secretion in order to survive, replicate and cause disease. The cell signaling machinery is a critical component of the immune system that relays information from the receptors to the nucleus where transcription of key immune genes is activated. Host cells have developed signal transduction systems to maintain homeostasis with pathogens. Most cellular processes and cell signaling pathways are tightly regulated by protein phosphorylation in which protein kinases are key protagonists. Pathogens have developed multiple mechanisms to subvert important signal transduction pathways such as the mitogen activated protein kinase (MAPK) and the nuclear factor kB (NF-kB) pathways. Pathogens also secrete effectors that manipulate actin cytoskeleton and its regulators, hijack cell cycle machinery and alter vesicular trafficking. This research topic focuses on the cellular signaling mechanisms that are essential for host immunity and their subversion by pathogens.
Principles Of Molecular Regulation
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Author : P. Michael Conn
language : en
Publisher: Springer Science & Business Media
Release Date : 2000-07-28
Principles Of Molecular Regulation written by P. Michael Conn and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-07-28 with Medical categories.
With the dramatic growth in our knowledge of hormone action and the mechanisms of cell regulation, the need for an up-to-date broad-ranging survey of these processes has become pressing. In Principles of Molecular Regulation, P. Michael Conn and Anthony Means have successfully assembled a panel of leading investigators to provide an integrated review of the key areas-membrane receptor-initiated cell signaling and nuclear receptor-initiated gene regulation. Chosen for the excellence of their research as well as their demonstrated writing skills, these distinguished authors illuminate the molecular machinery underlying the regulatory processes of cells. In addition to their comprehensive review of the signaling mechanisms involving cell surface receptors, nuclear receptors, and ion channels, they detail the roles of calcium, lipids, cyclic AMP, protein kinases, and protein phosphatases. They also discuss the molecular regulation of cell proliferation and death, as well as the impact of new technologies on rational drug discovery. Capturing the excitement now present at this vibrant union of molecular biology, cell biology, and endocrinology, Principles of Molecular Regulation constitutes a major new resource for understanding the many and complex elements of biological regulation. Its up-to-date critical synthesis is certain to prove of high value to all basic and clinical investigators working with these processes today.
Protein Kinases In Blood Cell Function
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Author : Chi-Kuang Huang
language : en
Publisher: CRC Press
Release Date : 1993-02-22
Protein Kinases In Blood Cell Function written by Chi-Kuang Huang and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993-02-22 with Medical categories.
Protein Kinases in Blood Cell Function provides an up-to-date, comprehensive review of protein kinases in various types of blood cell function. Blood cells discussed include T lymphocytes, B lymphocytes, platelets, mast cells, neutrophils, and macrophages. The book will interest pathologists, physiologists, oncologists, hematologists, leukocyte biologists, and immunologists. It will also benefit anyone interested in signal transduction and blood cell functions such as host defense, hemostasis, and immune response.
Immunophysics And Immunoengineering
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Author : Jorge Bernardino De La Serna
language : en
Publisher: Frontiers Media SA
Release Date : 2020-03-30
Immunophysics And Immunoengineering written by Jorge Bernardino De La Serna and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-30 with categories.
ImmunoPhysics (ImmPhys) and ImmunoEngineering (ImmPhysEng), are two cross-disciplinary fields. ImmPhysEng aims to unravel quantitatively the immune-system function and regulation in health and disease. Whereas ImmPhys study and assess the physical basis of the immune response, ImmEng pursues its control and prediction. Ultimately, the overarching goal of these disciplines is to facilitate the development of therapeutic interventions to more precisely modulate and control the compromised immune response during diseases. Lately, these disciplines are becoming more popular and as such, the number of publications applying physical or engineering tools to understand the immune response is increasing. Nevertheless, there is still no scientific forum compiling the ImmPhysEng research breakthroughs. Possibly the biggest burden is to stimulate a fluent communication and syntony between a physicist or engineer and an immunologist.