trp channels in sensory transduction

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Trp Channels In Sensory Transduction

Author : Rodolfo Madrid
ISBN : 9783319187051
Genre : Medical
File Size : 54. 64 MB
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TRP channels play a key role in sensory physiology and have been the focus of intensive investigation in recent years. The proposed book will be a comprehensive, detailed overview of the ways in which TRP channels are involved in a wide variety of sensory modalities. Authors will explore the involvement of TRP channels in photo transduction (sight), chemotransduction (taste and odor), mechanotransduction (touch and hearing), thermo transduction (the sensation of temperature) and pain perception. Furthermore, the book will include some grounding chapters such as one on the history of TRP channel research, one on the biophysical characteristics of the proteins and one on trafficking and post-translational regulation.

Trp Ion Channel Function In Sensory Transduction And Cellular Signaling Cascades

Author : Wolfgang B. Liedtke, MD, PH.D.
ISBN : 9781420005844
Genre : Science
File Size : 31. 5 MB
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Since the first TRP ion channel was discovered in Drosophila melanogaster in 1989, the progress made in this area of signaling research has yielded findings that offer the potential to dramatically impact human health and wellness. Involved in gateway activity for all five of our senses, TRP channels have been shown to respond to a wide range of stimuli from both within and outside the cell body. How we sense heat and cold, how we taste food, how eggs are fertilized, how the heart expands and contracts is each dependent on the function of these channels. While no single book could possibly cover all the research being undertaken, TRP Ion Channel Function in Sensory Transduction and Cellular Signaling Cascades presents the most advanced compilation of work in this area to date. All 31 chapters are written by international pioneers working at the vanguard of TRP ion channel research. They explain much about the pivotal function and behavior of these channels, which are most exquisitely tuned to their specific tasks, and delve into how researchers are putting this knowledge to use in the development of novel pharmaceuticals, which may well prove effective in ameliorating treatment-resistant conditions including cancer, heart disease, inflammation, and immune system dysfunctions. Individual chapters shed light on selected topics of interest in the TRP arena, such as signal transduction in axonal path-finding, and in vascular, renal, and auditory functions, as well as pain. The text also covers subjects as diverse as mating and fertilization, inflammatory pain, and mechanisms of pheromone detection in mammals. While the book presents much new insight and explores findings that will be of interest to those involved with advanced research, it also includes significant background material for those looking to familiarize themselves with this exceptionally promising path of inquiry.

Transduction Channels In Sensory Cells

Author : Stephan Frings
ISBN : 9783527604975
Genre : Science
File Size : 89. 90 MB
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This is the first book to provide a molecular level explanation of how the senses work, linking molecular biology with sensory physiology to deduce the molecular mechanism of a key step in sensory signal generation. The editors have assembled expert authors from all fields of sensory physiology for an authoritative overview of the mechanisms of sensory signal transduction in both animals and plants. They systematically cover phototransduction, chemosensory transduction, mechanotransduction, temperature and pain perception, as well as specialized receptors for electrical and magnetic signals. Required reading for biologists, physiologists and medical researchers with an interest in sensory physiology.

Role Of Trpm8 And Trpm3 In Sensory Transduction

Author : Talisia Esme Quallo
ISBN : OCLC:1027557295
Genre : Sensory neurons
File Size : 82. 58 MB
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Primary afferent neurons are equipped with sensory transduction channels which allow the conversion of physical and chemical stimuli into electrical signals. TRP channels are a heterogeneous superfamily of largely non-selective cation channels, which have been implicated in a myriad of sensory transduction mechanisms from the detection of temperature to the sensation of touch. Many TRP channels are key targets for the study of pain physiology due to their polymodal activation and expression in small diameter, unmyelinated sensory fibres. The aim of my project was to examine the roles of TRP channels in sensory transduction mechanisms. Three results chapters focusing on three different TRP channels are presented. A novel role for the established cold thermosensor, TRPM8, as a cellular osmosensor was determined. The studies presented establish that TRPM8 is activated by increases in extracellular osmolality and is partially activated at normal physiological osmolalities. Cool temperatures increase the sensitivity of TRPM8 to osmotic stimuli and activation of phospholipase enzymes modulates activation of TRPM8 by hyperosmotic solutions. TRPM8 is expressed within sensory neurons where it functions as the chief detector of increased osmolality in addition to a molecular sensor of cold sensations. The role of TRPM3 as a candidate heat transduction channel is examined. The findings presented demonstrate that recombinantly expressed TRPM3 channels are heat-sensitive and mice lacking functional TRPM3 channels lose a population of heat-activated neurons and have impaired behavioural responses to noxious heat. Moreover, modulation of TRPM3 by intracellular pathways downstream of G-protein coupled receptor activation has been determined. Activation of TRPM3 in sensory neurons is shown to be robustly inhibited by morphine in a predominantly mu-opioid receptor and G; dependent mechanism.

Neurobiology Of Trp Channels

Author : Tamara Luti Rosenbaum Emir
ISBN : 1498755240
Genre : Biochemistry
File Size : 40. 4 MB
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During the last two decades, there has been an explosion of research pertaining to the molecular mechanisms that allow for organisms to detect different stimuli that is an essential feature for their survival. Among these mechanisms, living beings need to be able to respond to different temperatures as well as chemical and physical stimuli. Thermally activated ion channels were proposed to be present in sensory neurons in the 1980s, but it was not until 1997 that a heat- and capsaicin- activated ion channel, TRPV1, was cloned and its function described in detail. This groundbreaking discovery led to the identification and characterization of several more proteins of the family of Transient Receptor Potential (TRP) ion channels. Intensive research has provided us with the atomic structures of some of these proteins, as well as understanding of their physiological roles, both in normal and pathological conditions. With chapters contributed by renowned experts in the field, Neurobiology of TRP Channels contains a state- of- the- art overview of our knowledge of TRP channels, ranging from structure to their functions in organismal physiology. Features: - Contains chapters on the roles of several TRP ion channels with a diversity of physiological functions, providing a complete picture of the widespread importance of these proteins. - Presents an overview of the structure of TRP channels, including the roles of these proteins in different physiological processes. - Discusses the roles of TRP channels in pathophysiological processes, further highlighting their importance. - Features several full color illustrations to allow the reader better comprehension of TRP channels. A volume in the Frontiers in Neuroscience series

Chemosensory Transduction

Author : Frank Zufall
ISBN : 9780128017869
Genre : Science
File Size : 55. 3 MB
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Written by leaders in the field of chemosensation, Chemosensory Transduction provides a comprehensive resource for understanding the molecular mechanisms that allow animals to detect their chemical world. The text focuses on mammals, but also includes several chapters on chemosensory transduction mechanisms in lower vertebrates and insects. This book examines transduction mechanisms in the olfactory, taste, and somatosensory (chemesthetic) systems as well as in a variety of internal sensors that are responsible for homeostatic regulation of the body. Chapters cover such topics as social odors in mammals, vertebrate and invertebrate olfactory receptors, peptide signaling in taste and gut nutrient sensing. Includes a foreword by preeminent olfactory scientist Stuart Firestein, Chair of Columbia University’s Department of Biological Sciences in New York, NY. Chemosensory Transduction describes state-of-the-art approaches and key findings related to the study of the chemical senses. Thus, it serves as the go-to reference for this subject for practicing scientists and students with backgrounds in sensory biology and/or neurobiology. The volume will also be valuable for industry researchers engaged in the design or testing of flavors, fragrances, foods and/or pharmaceuticals. Provides a comprehensive overview for all chemosensory transduction mechanisms Valuable for academics focused on sensory biology, neurobiology, and chemosensory transduction, as well as industry researchers in new flavor, fragrance, and food testing Edited by leading experts in the field of olfactory transduction Focuses on mammals, but lower vertebrates and invertebrate model systems are also included

Trp Channels

Author : Michael X. Zhu
ISBN : 9781439818619
Genre : Medical
File Size : 37. 47 MB
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The rapid expansion of the TRP field has generated a large amount of excellent original work across many different research fields. However, investigators are not necessarily familiar with the pros and cons of the variety of methods used to study TRP channels. Because of functional and genetic diversity, as well as the different physiological roles they play, techniques used for studying TRP channels range from single molecular analysis to behavioral animal studies. Methods in multiple areas, such as molecular biology, fluorescence imaging, electrophysiology, cell biology, genetics, proteomics, pharmacology, system physiology, and behavioral assessment, are employed to investigate various aspects of these channels. Choosing among many possible topics in these broad areas was a daunting task. A comprehensive review of the field, TRP Channels spans the information gap by providing broad coverage of current methods and techniques commonly used in TRP channel research, and detailed protocols with thorough discussions of the advantages and disadvantages across methods. Some topics covered include Mammalian, Drosophila and C. elegans TRP channels Practical protocols for functional studies of TRP channels, including TRPC, TRPV, TRPA, TRPM and the intracellularly localized TRPML channels ThermoTRPs, including the new fast temperature jump apparatus and the high throughput random mutagenesis method for screening critical motifs involved in TRP channel regulation Cell-based high-throughput screening assays for TRP channels and their applications in drug discoveries TRP channel functions in native cells, including smooth muscles, neurons, and cancers Showcasing the current status of the field, TRP Channels covers the major techniques used in various areas of research. The majority of the chapters are protocol oriented, with the goal of providing clear directions for laboratory use. Because of the breadth of the TRP field, the applications of some methods are described in multiple chapters by experts working on a variety of channel types that serve different physiological functions, highlighting distinctive views on how the methodology can be utilized. Some chapters include discussion on the usefulness and pitfalls associated with the use of certain techniques. Together with chapters that offer comprehensive reviews on the functional regulation and other roles of TRP channels, students and investigators new to the field should find this book particularly informative.

Trp Channels As Therapeutic Targets

Author : Arpad Szallasi
ISBN : 9780124200791
Genre : Medical
File Size : 81. 98 MB
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TRP Channels as Therapeutic Targets: From Basic Science to Clinical Use is authored by experts across academia and industry, providing readers with a complete picture of the therapeutic potential and challenges associated with using TRP channels as drug targets. This book offers a unique clinical approach by covering compounds that target TRP channels in pre-clinical and clinical phases, also offering a discussion of TRP channels as biomarkers. An entire section is devoted to the novel and innovative uses of these channels across a variety of diseases, offering strategies that can be used to overcome the adverse effects of first generation TRPV1 antagonists. Intended for all researchers and clinicians working toward the development of successful drugs targeting TRP channels, this book is an essential resource chocked full of the latest clinical data and findings. Contains comprehensive coverage of TRP channels as therapeutic targets, from emerging clinical indications to completed clinical trials Discusses TRP channels as validated targets, ranging from obesity and diabetes through cancer and respiratory disorders, kidney diseases, hypertension, neurodegenerative disorders, and more Provides critical analysis of the complications and side effects that have surfaced during clinical trials, offering evidence-based suggestions for overcoming them

Structural Determinants Of Trp Channel Assembly

Author : Pamela Tsuruda
ISBN : UCAL:X85576
Genre :
File Size : 45. 48 MB
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Transient Receptor Potential (TRP) channels mediate numerous sensory transduction processes and are thought to function as tetrameric complexes. Much is known about TRP channel physiology; however, comparatively little is understood regarding how these channels assemble. Here, we identify an autonomously folded assembly domain from the cold and menthol gated channel TRPM8, and address the importance of several putative assembly motifs of the capsaicin receptor, TRPV1. Several regions are identified for homomeric interaction within the N-terminus of TRPV1, and we detect two cytoplasmic proteins that may also interact with this domain. Additionally, we use electrophysiology and cell biology to identify N- and C-terminal coiled-coils that may play a role in TRPV1 channel stability or trafficking. We show that the TRPM8 cytoplasmic C-terminal domain contains a coiled-coil that is necessary for directing channel assembly and sufficient for mediating tetramer formation using a combination of biochemical, electrophysiological, and cell biological techniques. These data define the first authentic TRP family modular assembly domain, delineate a new tool that should be of general use in dissecting TRPM channel function, and establish a clear role for coiled-coil structures in ion channel assembly.

Mechanically Gated Channels And Their Regulation

Author : Andre Kamkin
ISBN : 9789400750739
Genre : Medical
File Size : 53. 99 MB
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The volume dwells on the major issues of mechanical stress influencing the ion channels and intracellular signaling pathways. This book is a unique collection of reviews outlining current knowledge and future developments in this rapidly growing field. In our opinion the book presents not only the latest achievements in the field but also brings the problem closer to the experts in related medical and biological sciences as well as practicing doctors. Knowledge of the mechanisms which underlie these processes is necessary for understanding of the normal functioning of different living organs and tissues and allows to predict changes, which arise due to alterations of their environment, and possibly will allow to develop new methods of artificial intervention. We also hope that presenting the problem will attract more attention to it both from researchers and practitioners and will assist to efficiently introduce it into the practical medicine.

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