Download or read book Lipid Signaling in T Cell Development and Function written by Karsten Sauer and published by Frontiers Media SA. This book was released on 2015-11-12 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lipids are best known as energy storing molecules and core-components of cellular membranes, but can also act as mediators of cellular signaling. This is most prominently illustrated by the paramount importance of the phospholipase C (PLC) and phosphoinositide 3-kinase (PI3K) signaling pathways in many cells, including T cells and cancer cells. Both of these enzymes use the lipid phosphatidylinositol(4,5)bisphosphate (PIP2) as their substrate. PLCs produce the lipid product diacylglycerol (DAG) and soluble inositol(1,4,5)trisphosphate (IP3). DAG acts as a membrane tether for protein kinase C and RasGRP proteins. IP3 is released into the cytosol and controls calcium release from internal stores. The PI3K lipid product phosphatidylinositol(3,4,5)trisphosphate (PIP3) controls signaling by binding and recruiting effector proteins such as Akt and Itk to cellular membranes. Recent research has unveiled important signaling roles for many additional phosphoinositides and other lipids. The articles in this volume highlight how multiple different lipids govern T cell development and function through diverse mechanisms and effectors. In T cells, lipids can orchestrate signaling by organizing membrane topology in rafts or microdomains, direct protein function through covalent lipid-modification or non-covalent lipid binding, act as intracellular or extracellular messenger molecules, or govern T cell function at the level of metabolic regulation. The cellular activity of certain lipid messengers is moreover controlled by soluble counterparts, exemplified by symmetric PIP3/inositol(1,3,4,5)tetrakisphosphate (IP4) signaling in developing T cells. Not surprisingly, lipid producing and metabolizing enzymes have gained attention as potential therapeutic targets for immune disorders, leukemias and lymphomas.

Download or read book Signaling Mechanisms Regulating T Cell Diversity and Function written by Jonathan Soboloff and published by CRC Press. This book was released on 2017-03-27 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: T cells play a vital role mediating adaptive immunity, a specific acquired resistance to an infectious agent produced by the introduction of an antigen. There are a variety of T cell types with different functions. They are called T cells, because they are derived from the thymus gland. This volume discusses how T cells are regulated through the operation of signaling mechanisms. Topics covered include positive and negative selection, early events in T cell receptor engagement, and various T cell subsets.

Download or read book Lipid Signaling and Metabolism written by James M. Ntambi and published by Academic Press. This book was released on 2020-08-09 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lipid Signaling and Metabolism provides foundational knowledge and methods to examine lipid metabolism and bioactive lipid signaling mediators that regulate a broad spectrum of biological processes and disease states. Here, world-renowned investigators offer a basic examination of general lipid, metabolism, intracellular lipid storage and utilization that is followed by an in-depth discussion of lipid signaling and metabolism across disease areas, including obesity, diabetes, fatty liver disease, inflammation, cancer, cardiovascular disease and mood-related disorders. Throughout, authors demonstrate how expanding our understanding of lipid mediators in metabolism and signaling enables opportunities for novel therapeutics. Emphasis is placed on bioactive lipid metabolism and research that has been impacted by new technologies and their new potential to transform precision medicine. - Provides a clear, up-to-date understanding of lipid signaling and metabolism and the impact of recent technologies critical to advancing new studies - Empowers researchers to examine bioactive lipid signaling and metabolism, supporting translation to clinical care and precision medicine - Discusses the role of lipid signaling and metabolism in obesity, diabetes, fatty liver disease, inflammation, cancer, cardiovascular disease and mood-related disorders, among others

Download or read book Janeway s Immunobiology written by Kenneth Murphy and published by Garland Science. This book was released on 2010-06-22 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Janeway's Immunobiology CD-ROM, Immunobiology Interactive, is included with each book, and can be purchased separately. It contains animations and videos with voiceover narration, as well as the figures from the text for presentation purposes.

Download or read book T Cell Development written by Rémy Bosselut and published by Humana. This book was released on 2015-08-22 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: ​This volume provides simple and accessible experiment protocols to explore thymus biology. T-Cell Development: Methods and Protocols is divided into three parts presenting short reviews on T cell development, analysis strategies, protocols for cell preparation, flow cytometry analyses, and multiple aspects of thymocyte biology. As a volume in the highly successful Methods in Molecular Biology series, chapters contain introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible protocols, and tips on troubleshooting and avoiding known pitfalls. Concise and easy-to-use, T-Cell Development: Methods and Protocols aims to ensure successful results in the further study of this vital field.

Download or read book The Function and Regulation of Protein and Lipid Phosphatases in T Cell Receptor Signal Transduction written by Zheng Xu and published by . This book was released on 2002 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Structural Biology in Immunology written by Chaim Putterman and published by Academic Press. This book was released on 2018-05-14 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural Biology in Immunology, Structure/Function of Novel Molecules of Immunologic Importance delivers important information on the structure and functional relationships in novel molecules of immunologic interest. Due to an increasingly sophisticated understanding of the immune system, the approach to the treatment of many immune-mediated diseases, including multiple sclerosis, systemic lupus erythematosus, rheumatoid arthritis, and inflammatory bowel disease has been dramatically altered. Furthermore, there is an increasing awareness of the critical role of the immune system in cancer biology. The improved central structure function relationships presented in this book will further enhance our ability to understand what defects in normal individuals can lead to disease. - Describes novel/recently discovered immunomodulatory proteins, including antibodies and co-stimulatory or co-inhibitory molecules - Emphasizes new biologic and small molecule drug design through the exploration of structure-function relationship - Features a collaborative editorial effort, involving clinical immunologists and structural biologists - Provides useful and practical insights on developing the necessary links between basic science and clinical therapy in immunology - Gives interested parties a bridge to learn about computer modeling and structure based design principles

Download or read book Molecular Biology of the Cell written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Immune Response written by Tak W. Mak and published by Academic Press. This book was released on 2005-11-11 with total page 1217 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Immune Response is a unique reference work covering the basic and clinical principles of immunology in a modern and comprehensive fashion. Written in an engaging conversational style, the book conveys the broad scope and fascinating appeal of immunology. The book is beautifully illustrated with superb figures as well as many full color plates. This extraordinary work will be an invaluable resource for lecturers and graduate students in immunology, as well as a vital reference for research scientists and clinicians studying related areas in the life and medical sciences. - Current and thorough 30 chapter reference reviewed by luminaries in the field - Unique 'single voice' ensures consistency of definitions and concepts - Comprehensive and elegant illustrations bring key concepts to life - Provides historical context to allow fuller understanding of key issues - Introductory chapters 1-4 serve as an 'Immunology Primer' before topics are discussed in more detail

Download or read book B Cell Receptor Signaling written by Tomohiro Kurosaki and published by Springer. This book was released on 2015-12-26 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume details our current understanding of the architecture and signaling capabilities of the B cell antigen receptor (BCR) in health and disease. The first chapters review new insights into the assembly of BCR components and their organization on the cell surface. Subsequent contributions focus on the molecular interactions that connect the BCR with major intracellular signaling pathways such as Ca2+ mobilization, membrane phospholipid metabolism, nuclear translocation of NF-kB or the activation of Bruton’s Tyrosine Kinase and MAP kinases. These elements orchestrate cytoplasmic and nuclear responses as well as cytoskeleton dynamics for antigen internalization. Furthermore, a key mechanism of how B cells remember their cognate antigen is discussed in detail. Altogether, the discoveries presented provide a better understanding of B cell biology and help to explain some B cell-mediated pathogenicities, like autoimmune phenomena or the formation of B cell tumors, while also paving the way for eventually combating these diseases.

Download or read book Lipid signaling in plants written by Xuemin Wang and published by Frontiers E-books. This book was released on 2013-07-30 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cell membranes are the initial and focal sites of stimulus perception and signal transduction. Membrane lipids are rich sources for the production of signaling messengers that mediate plant growth, development, and response to nutrient status and stresses. In recent years, substantial progress has been made toward understanding lipid signaling in plants, but many fundamental questions remain: What lipids are signaling messengers or mediators in plants? How are the signaling lipids produced and metabolized? In what plant cellular and physiological processes are various lipid mediators involved? How do they carry out their signaling functions? How do lipid signaling networks contribute to modulating plant growth, development, and responses to hormones and stresses? In this Research Topic issue, we invite the broad plant community to address the above questions.Cell membranes are the initial and focal sites of stimulus perception and signal transduction. Membrane lipids are rich sources for the production of signaling messengers that mediate plant growth, development, and response to nutrient status and stresses. In recent years, substantial progress has been made toward understanding lipid signaling in plants, but many fundamental questions remain: What lipids are signaling messengers or mediators in plants? How are the signaling lipids produced and metabolized? In what plant cellular and physiological processes are various lipid mediators involved? How do they carry out their signaling functions? How do lipid signaling networks contribute to modulating plant growth, development, and responses to hormones and stresses? In this Research Topic issue, we invite the broad plant community to address the above questions.

Download or read book Diacylglycerol Kinase Signalling written by Isabel Merida and published by Frontiers Media SA. This book was released on 2017-11-23 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diacylglycerol kinases (DGKs) phosphorylate diacylglycerol (DG), catalyzing its conversion into phosphatidic acid (PA). This reaction attenuates membrane DG levels, limiting the localization/activation of signaling proteins that bind this lipid. Initially recognized as modulators of classical and novel PKC family members, the function of the DGK has further expanded with the identification of novel DG effectors including Ras Guanyl nucleotide-releasing proteins (RasGRP) and chimaerin Rac GTPases. The product of the DGK reaction, PA, is also a signaling lipid that mediates activation of multiple proteins including the mammalian target of rapamycin (mTOR). The DGK pathway thus modulates two lipids with important signaling properties that are also key intermediates in lipid metabolism and membrane trafficking. The DGK family in eukaryotes comprises 10 different members grouped into five different subfamilies characterized by the presence of particular regulatory motifs. These regions allow the different DGK isoforms to establish specific complexes and/or to be recruited to specific subcellular compartments. The subtle regulation of DG and PA catalyzed byspecific DGKs is sensed by a restricted set of molecules, providing the means for spatio-temporal regulation of signals in highly specialized cell systems. In the recent years, multiple studies have unveiled the functions of specific isoforms, their mechanisms of regulation and their participation in different pathways leading to and from DG and PA. Animal models have greatly helped to understand the specialized contribution of DGK mediated signals, particularly in the immune and central nervous systems. Mice deficient for individual DGK isoforms show defects in T and B cell functions, dendritic spine maintenance, osteoclast and mechanical-induced skeletal muscle formation. Studies in flies and worms link DGK mediated DAG metabolism with mTOR- mediated regulation of lifespan and stress responses. In plants DGK mediated PA formation contributes to plant responses to environmental signals. Aberrant DGK function has been recently associated with pathological states, an expected consequence of the essential role of these enzymes in the regulation of multiple tissue and systemic functions. DGK mutations/deletions have been related to human diseases including diabetes, atypical hemolytic-uremic syndrome, Parkinson disease and bipolar disorders. On the contrary DGK upregulation emerges as a non-oncogenic addition of certain tumors and represents one of the main mechanism by which cancer evades the immune attack. As a result, the DGK field emerges an exciting new area of research with important therapeutic potential.

Download or read book T Cell Activation by CD1 and Lipid Antigens written by Branch D. Moody and published by Springer. This book was released on 2009-09-02 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is increasing evidence that the CD1 system has been conserved throughout mammalian evolution and is capable of presenting structurally diverse diacyglycerol, sphingolipid, polyisoprenol and lipopeptide antigens. This volume provides a comprehensive discussion of these basic aspects of CD1 biology and summarizes the most recent research into the role of CD1 in infectious, autoimmune, allergic and neoplastic disease.

Download or read book Protein Kinase mediated Decisions Between Life and Death written by Ayse Basak Engin and published by Springer Nature. This book was released on 2021-02-04 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Membrane Dynamics and Domains written by Peter J. Quinn and published by Springer Science & Business Media. This book was released on 2004-07-02 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fluid-mosaic model of membrane structure formulated by Singer and Nicolson in the early 1970s has proven to be a durable concept in terms of the principles governing the organization of the constituent lipids and proteins. During the past 30 or so years a great deal of information has accumulated on the composition of various cell membranes and how this is related to the dif ferent functions that membranes perform. Nevertheless, the task of explaining particular functions at the molecular level has been hampered by lack of struc tural detail at the atomic level. The reason for this is primarily the difficulty of crystallizing membrane proteins which require strategies that differ from those used to crystallize soluble proteins. The unique exception is bacteriorhodopsin of the purple membrane of Halobacterium halobium which is interpolated into a membrane that is neither fluid nor in a mosaic configuration. To date only 50 or so membrane proteins have been characterised to atomic resolution by diffraction methods, in contrast to the vast data accumulated on soluble proteins. Another factor that has been difficult to explain is the reason why the lipid compliment of membranes is often extremely complex. Many hundreds of different molecular species of lipid can be identified in some membranes. Remarkably, the particular composition of each membrane appears to be main tained within relatively narrow limits and its identity distinguished from other morphologically-distinct membranes.

Download or read book The Heterogeneity of Cancer Metabolism written by Anne Le and published by Springer. This book was released on 2018-06-26 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic alterations in cancer, in addition to being the fundamental drivers of tumorigenesis, can give rise to a variety of metabolic adaptations that allow cancer cells to survive and proliferate in diverse tumor microenvironments. This metabolic flexibility is different from normal cellular metabolic processes and leads to heterogeneity in cancer metabolism within the same cancer type or even within the same tumor. In this book, we delve into the complexity and diversity of cancer metabolism, and highlight how understanding the heterogeneity of cancer metabolism is fundamental to the development of effective metabolism-based therapeutic strategies. Deciphering how cancer cells utilize various nutrient resources will enable clinicians and researchers to pair specific chemotherapeutic agents with patients who are most likely to respond with positive outcomes, allowing for more cost-effective and personalized cancer therapeutic strategies.

Download or read book Translational Immunotherapy of Brain Tumors written by John H. Sampson and published by Academic Press. This book was released on 2017-02-06 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Translational Immunotherapy of Brain Tumors gives researchers and practitioners an up-to-date and comprehensive overview of the field. Chapters include adoptive immunotherapy, immunosuppression, CAR therapy of brain tumors, and dendritic cell therapy for brain tumors. Very few agents have been shown to be efficacious in the treatment of malignant gliomas. Recently, there have been a number of studies demonstrating the potential success of immunotherapy for brain tumors. Immunotherapeutics are becoming the most frequent drugs to be used in cancer therapy. These new breakthroughs, now approved by the FDA, are a part of multiple phase III international trials and ongoing research in malignant glioma, meaning that the information in this cutting-edge book will be of great importance to practitioners and researchers alike. Comprehensive overview, providing an update on immunology, translational immunotherapy, and clinical trials relating to malignant gliomas Edited by a prominent neurosurgeon with contributions by leading researchers in the field Ideal resource for researchers and practitioners interested in learning about mechanisms that use the immune system to treat brain tumors