Download or read book Membrane Microdomain Signaling written by Mark P. Mattson and published by Springer Science & Business Media. This book was released on 2005 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: From intramolecular asymmetries to raft assemblies: a short guide for the puzzled in lipidomics / Ephraim Yavin and Annette Brand -- Regulatory aspects of membrane microdomain (raft) dynamics in live cells: a biophysical approach / János Matkó and János Szöllosi -- Lipid raft membrane skeletons / Elizabeth J. Luna ... [et al.] -- Role of cholesterol in membrane microdomain signaling / Christopher J. Fielding -- Raft lipid metabolism in relation to alkyl-lysophospholipid-induced apoptosis / Arnold H. van der Luit, Marcel Verheij, and Wim J. van Blitterswijk -- Role of lipid rafts in signal transduction and synaptic plasticity of neural cells / Markus Delling and Melitta Schachner -- Role of rafts in virus fusion and budding / Wu Ou and Jonathan Silver -- Alterations in raft lipid metabolism in aging and neurodegenerative disorders / Mark P. Mattson, Roy G. Cutler, and Norman J. Haughey -- Caveolin and cancer: a complex relationship / Mordechai Liscovitch ... [et al.] -- Dietary modulation of lipid rafts: implications for disease prevention and treatment / Mark P. Mattson.
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 2013-06-29 with total page 502 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 Microdomains in the Cardiovascular System written by Viacheslav Nikolaev and published by Springer. This book was released on 2017-09-19 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book comprehensively presents new findings in cardiovascular research related to signaling microdomains in health and disease. Important second messengers such as cAMP, cGMP, calcium and their role in microdomain signaling are discussed. The book offers and explains methodical approaches and technical ways how to successfully analyze microdomain signaling, also in the context of disease. It further provides scientific perspectives and strategies that are based on the concept of signaling within microdomains and that can revolutionize pharmacology and eventually lead to the effective treatment of cardiovascular diseases in future.This book is written for scientists in cardiovascular research, pharmacology, molecular and cellular biology as well as medical doctors in cardiology, angiology and nephrology.
Download or read book Membrane Microdomain Regulation of Neuron Signaling written by Dr. Ron Wallace and published by . This book was released on 2008 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rapid pace of discovery in membrane molecular biology is revealing unexpected complexity at the boundary of the cell. The membrane appears to be more than a thin film separating aqueous compartments or an anchoring site for proteins. Indeed, it shows many indications of being a dynamic, regulatory structure composed of transient lipid ensembles known as rafts or microdomains. These appear to regulate the membrane-protein kinetics which is the basis of many cellular functions. This book describes those regulatory features in detail and presents evidence that they operate in the neuron.
Download or read book Molecular Biology of The Cell written by Bruce Alberts 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 Specialised membrane domains of plasmodesmata plant intercellular nanopores written by Jens Tilsner and published by Frontiers E-books. This book was released on 2014-12-17 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasmodesmata (PD) are plant-specific intercellular nanopores defined by specialised domains of the plasma membrane (PM) and the endoplasmic reticulum (ER), both of which contain unique proteins, and probably different lipid compositions than the surrounding bulk membranes. The PD membranes form concentric tubules with a minimal outer diameter of only 50 nm, and the central ER strand constricted to ~10-15 nm, representing one of the narrowest stable membrane tubules in nature. This unique membrane architecture poses many biophysical, structural and functional questions. PM continuity across PD raises the question as to how a locally confined membrane site is established and maintained at PD. There is increasing evidence that the PM within PD may be enriched in membrane ‘rafts’ or TET web domains. Lipid rafts often function as signalling platforms, in line with the emerging view of PD as central players in plant defense responses. Lipid-lipid immiscibility could also provide a mechanism for membrane sub- compartmentalisation at PD. Intricate connections of the PM to the wall and the underlying cytoskeleton and ER may anchor the specialised domains locally. The ER within PD is even more strongly modified. Its extreme curvature suggests that it is stabilised by densely packed proteins, potentially members of the reticulon family that tubulate the cortical ER. The diameter of the constricted ER within PD is similar to membrane stalks in dynamin-mediated membrane fission during endocytosis and may need to be stabilised against spontaneous rupture. The function of this extreme membrane constriction, and the reasons why the ER is connected between plant cells remain unknown. Whilst the technically challenging search for the protein components of PD is ongoing, there has been significant recent progress in research on biological membranes that could benefit our understanding of PD function. With this Research Topic, we therefore aim to bring together researchers in the PD field and those in related areas, such as membrane biophysics, membrane composition and fluidity, protein-lipid interactions, lateral membrane heterogeneity, lipid rafts, membrane curvature, and membrane fusion/fission. We wish to address questions such as: - What mechanisms restrict lateral mobility of proteins and lipids along the PD membranes? - How can specific proteins be targeted to and turned over from membrane domains with restricted lateral access? - What elements (lipids, proteins, membrane curvature, packing order, thickness etc.) may contribute to the identity of PD membranes? - How do the structural and functional features of PD compare to other ER-PM contact sites? - How is the high curvature of the PD ER stabilised and what are possible functions of such a tightly constricted membrane tubule? - Do PD need to be prevented from spontaneous collapse and sealing? - What technologies are available to address these questions that can underpin PD research? We welcome interested individuals to contribute their expertise and develop new hypotheses on the particular biological and biophysical questions posed by PD. We are particularly looking for articles (Original Research Articles, Technical Advances and State-of-the-Art reviews) that would expand on or challenge current perceptions of PD and stimulate discussion.
Download or read book Membrane Microdomain Regulation of Neuron Signaling written by Ron Wallace and published by Nova Biomedical Books. This book was released on 2008 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Brain Lipids in Synaptic Function and Neurological Disease written by Jacques Fantini and published by Academic Press. This book was released on 2015-05-12 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lipids are the most abundant organic compounds found in the brain, accounting for up to 50% of its dry weight. The brain lipidome includes several thousands of distinct biochemical structures whose expression may greatly vary according to age, gender, brain region, cell type, as well as subcellular localization. In synaptic membranes, brain lipids specifically interact with neurotransmitter receptors and control their activity. Moreover, brain lipids play a key role in the generation and neurotoxicity of amyloidogenic proteins involved in the pathophysiology of neurological diseases. The aim of this book is to provide for the first time a comprehensive overview of brain lipid structures, and to explain the roles of these lipids in synaptic function, and in neurodegenerative diseases, including Alzheimer’s, Creutzfeldt-Jakob’s and Parkinson’s. To conclude the book, the authors present new ideas that can drive innovative therapeutic strategies based on the knowledge of the role of lipids in brain disorders. Written to provide a "hands-on" approach for readers Biochemical structures explained with molecular models, and molecular mechanisms explained with simple drawings Step-by-step guide to memorize and draw lipid structures Each chapter features a content summary, up-to-date references for additional study, and a key experiment with an explanation of the technique
Download or read book Lipid Rafts and Caveolae written by Christopher J. Fielding and published by John Wiley & Sons. This book was released on 2006-12-13 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This keenly awaited first overview of the field represents a complete guide to the structure and function of the most important mammalian cell membrane organelles. Filling a huge gap in the primary literature, this book is the first to cover the subject in detail. Following an introduction by Kai Simons, the discoverer of lipid rafts and the most prominent scientist in the field, chapters include: Historical background Distinct structures and functions Structural basis Signaling Viral entry and virion budding Cholesterol transport Caveolins Lipid shells Cell polarity and intracellular trafficking Cancer cells Of prime importance to molecular and cell biologists, biochemists, membrane scientists, cancer researchers, and virologists.
Download or read book Membrane Microdomain Signaling written by Mark P. Mattson and published by Springer Science & Business Media. This book was released on 2007-10-27 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cutting-edge articles review our current understanding of lipid microdomain signaling mechanisms and their physiological and pathological importance. The book describes the role of lipid rafts in learning, memory, and cancer, presents the emerging evidence that lipid rafts play critical roles in signaling pathways and the regulation of synaptic function in the nervous system, and shows how alterations in lipid raft metabolism are implicated in the pathogenesis of neurodegenerative disorders. Techniques are also described for the isolation of lipid rafts, the analysis of the lipid and protein components of lipid rafts, the imaging of lipid rafts in living cells, and the analysis of signal transduction in lipid rafts.
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 The Endothelium written by Michel Félétou and published by Morgan & Claypool Publishers. This book was released on 2011 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: The endothelium, a monolayer of endothelial cells, constitutes the inner cellular lining of the blood vessels (arteries, veins and capillaries) and the lymphatic system, and therefore is in direct contact with the blood/lymph and the circulating cells. The endothelium is a major player in the control of blood fluidity, platelet aggregation and vascular tone, a major actor in the regulation of immunology, inflammation and angiogenesis, and an important metabolizing and an endocrine organ. Endothelial cells controls vascular tone, and thereby blood flow, by synthesizing and releasing relaxing and contracting factors such as nitric oxide, metabolites of arachidonic acid via the cyclooxygenases, lipoxygenases and cytochrome P450 pathways, various peptides (endothelin, urotensin, CNP, adrenomedullin, etc.), adenosine, purines, reactive oxygen species and so on. Additionally, endothelial ectoenzymes are required steps in the generation of vasoactive hormones such as angiotensin II. An endothelial dysfunction linked to an imbalance in the synthesis and/or the release of these various endothelial factors may explain the initiation of cardiovascular pathologies (from hypertension to atherosclerosis) or their development and perpetuation. Table of Contents: Introduction / Multiple Functions of the Endothelial Cells / Calcium Signaling in Vascular Cells and Cell-to-Cell Communications / Endothelium-Dependent Regulation of Vascular Tone / Conclusion / References
Download or read book Phase Transitions in Cell Biology written by Gerald H. Pollack and published by Springer Science & Business Media. This book was released on 2008-08-15 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phase transitions occur throughout nature. The most familiar example is the one that occurs in water – the abrupt, discontinuous transition from a liquid to a gas or a solid, induced by a subtle environmental change. Practically magical, the ever-so-slight shift of temperature or pressure can induce an astonishing transition from one entity to another entity that bears little resemblance to the first. So "convenient" a feature is seen throughout the domains of physics and chemistry, and one is therefore led to wonder whether it might also be common to biology. Indeed, many of the most fundamental cellular processes are arguably attributable to radical structural shifts triggered by subtle changes that cross a critical threshold. These processes include transport, motion, signaling, division, and other fundamental aspects of cellular function. Largely on the basis of this radical concept, a symposium was organized in Poitiers, France, to bring together people who have additional evidence for the role of phase transitions in biology, and this book is a compendium of some of the more far-reaching of those presentations, as well as several others that seemed to the editors to be compelling. The book should be suitable for anyone interested in the nature of biological function, particularly those who tire of lumbering along well trodden pathways of pursuit, and are eager to hear something fresh. The book is replete with fresh interpretations of familiar phenomena, and should serve as an excellent gateway to deeper understanding.
Download or read book Calcium Entry Channels in Non Excitable Cells written by Juliusz Ashot Kozak and published by CRC Press. This book was released on 2017-07-14 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calcium Entry Channels in Non-Excitable Cells focuses on methods of investigating the structure and function of non-voltage gated calcium channels. Each chapter presents important discoveries in calcium entry pathways, specifically dealing with the molecular identification of store-operated calcium channels which were reviewed by earlier volumes in the Methods in Signal Transduction series. Crystallographic and pharmacological approaches to the study of calcium channels of epithelial cells are also discussed. Calcium ion is a messenger in most cell types. Whereas voltage gated calcium channels have been studied extensively, the non-voltage gated calcium entry channel genes have only been identified relatively recently. The book will fill this important niche.
Download or read book Signal Transduction and Smooth Muscle written by Mohamed Trebak and published by CRC Press. This book was released on 2018-08-06 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: All hollow organs, such as blood vessels, the gastrointestinal tract, airways, male and female reproductive systems, and the urinary bladder are primarily composed of smooth muscle. Such organs regulate flow, propulsion and mixing of luminal contents and storage by the contraction and relaxation of smooth muscle cells. Smooth muscle cells respond to numerous inputs, including pressure, shear stress, intrinsic and extrinsic innervation, hormones and other circulating molecules, as well as autocrine and paracrine factors. This book is a review of smooth muscle cell regulation in the cardiovascular, reproductive, GI, and other organ systems with emphasis on calcium and receptor signaling. Key selling features: Focuses on smooth muscles of different types Describes ion channel signaling mechanisms Reviews calcium and receptor signaling Includes novel, cutting-edge methodologies Summarizes studies of mice with genetically encoding sensors in smooth muscle Chapter 9 of this book is freely available as a downloadable Open Access PDF at http://www.taylorfrancis.com under a Creative Commons Attribution (CC-BY) 4.0 license.
Download or read book Experimental Neurochemistry written by Abel Lajtha and published by Springer. This book was released on 1982-12-01 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second volume of the Handbook does not parallel any volume of the first edition; it is one more sign, or reflection, of the expansion of the field. By emphasizing the experimental approach, it illustrates the tools that have re cently become available for investigating the nervous system. Also, perhaps even more than other volumes, it illustrates the multidisciplinary nature of the field, requiring multidisciplinary methodology. It is now recognized that the availability of methodology is often the rate-limiting determinant of studies and that improvements or innovations in instrumentation can open up new avenues. A new improved method, although opening up new possibilities and being crucial to making advances, is only a tool whose use will determine its use fulness. If we do not recognize its possibilities, its use will be limited; if we do not recognize its limitations, it will mislead us. It is the possibilities and limitations and the results obtained that are illustrated here.
Download or read book Cell Membrane Nanodomains written by Alessandra Cambi and published by CRC Press. This book was released on 2014-10-27 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cell Membrane Nanodomains: From Biochemistry to Nanoscopy describes recent advances in our understanding of membrane organization, with a particular focus on the cutting-edge imaging techniques that are making these new discoveries possible. With contributions from pioneers in the field, the book explores areas where the application of these novel techniques reveals new concepts in biology. It assembles a collection of works where the integration of membrane biology and microscopy emphasizes the interdisciplinary nature of this exciting field. Beginning with a broad description of membrane organization, including seminal work on lipid partitioning in model systems and the roles of proteins in membrane organization, the book examines how lipids and membrane compartmentalization can regulate protein function and signal transduction. It then focuses on recent advances in imaging techniques and tools that foster further advances in our understanding of signaling nanoplatforms. The coverage includes several diffraction-limited imaging techniques that allow for measurements of protein distribution/clustering and membrane curvature in living cells, new fluorescent proteins, novel Laurdan analyses, and the toolbox of labeling possibilities with organic dyes. Since superresolution optical techniques have been crucial to advancing our understanding of cellular structure and protein behavior, the book concludes with a discussion of technologies that are enabling the visualization of lipids, proteins, and other molecular components at unprecedented spatiotemporal resolution. It also explains the ins and outs of the rapidly developing high- or superresolution microscopy field, including new methods and data analysis tools that exclusively pertain to these techniques. This integration of membrane biology and advanced imaging techniques emphasizes the interdisciplinary nature of this exciting field. The array of contributions from leading world experts makes this book a valuable tool for the visualization of signaling nanoplatforms by means of cutting-edge optical microscopy tools.
