Download or read book The Role of Integrin Mediated Adhesion and Signaling During Xenopus Retinal Development written by Ming Li and published by . This book was released on 2003 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integrins are the major family of cell adhesion receptors for extracellular matrix (ECM) components and are involved in cell-cell and cell-ECM adhesion. Integrins also participate in cytoskeletal rearrangements, activation of signal transductions, and co-regulation of growth factor activities. In this dissertation, I have investigated the role of [beta]1 integrin-mediated adhesion and signaling during early Xenopus retinal development. First, I characterized the expression patterns of focal adhesion associated proteins, [beta]1 integrin, talin, vinculin, paxillin and phosphotyrosine in retinal glial cell line XR1 and in the developing Xenopus retina. These proteins are colocalized at focal adhesions located at the termini of F-actin filaments in XR1 cells. These proteins display spatial and temporal expression patterns, which are related with specific morphologies during retinal development. The similar and differential expression patterns suggest that focal adhesion proteins are involved in integrin-mediated adhesion and signaling, and are likely to be essential in regulating retinal morphogenesis. Second, I tested the hypothesis that protein tyrosine kinase (PTK) activity is essential for Xenopus retinal development. Inhibition of tyrosine kinase activity blocked focal adhesion assembly in cultures of dissociated retinal neuroepithelial cells and XR1 glial cells. Application of PTK inhibitors to embryonic retina disrupted retinal lamination and photoreceptor morphogenesis. The expression patterns of phosphotyrosine and [beta]1 integrins were also disrupted. Finally, I directly blocked integrin-ECM interactions with a disintegrin echistatin and observed the effects of the blockage on the retinal development. Echistatin inhibited XR1 glial cell attachment to fibronectin substrates, and also blocked cell spreading and focal adhesion assembly in XR1 cells. In addition, echistatin reduced the tyrosine phosphorylation levels of paxillin. Furthermore, application of echistatin to embryonic retina disrupted the retinal lamination and induced rosette structures with ectopic photoreceptors in the outer retina. Taken together, these results provide evidence that integrins are likely to play an important role in selective cell-ECM interactions, cell migration, differentiation and neurite outgrowth during retinal development. Focal adhesion associated proteins and tyrosine kinase activities are involved in the modulation of integrin-mediated adhesion and signal transduction pathways. This research contributes to our understanding of the functions and mechanisms of integrin-mediated adhesion during neural development.
Download or read book Extracellular Matrix in Development written by Douglas W. DeSimone and published by Springer Science & Business Media. This book was released on 2013-03-15 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cells in the developing embryo depend on signals from the extracellular environment to help guide their differentiation. An important mediator in this process is the extracellular matrix – secreted macromolecules that interact to form large protein networks outside the cell. During development, the extracellular matrix serves to separate adjacent cell groups, participates in establishing morphogenic gradients, and, through its ability to interact directly will cell-surface receptors, provides developmental clocks and positional information. This volume discusses how the extracellular matrix influences fundamental developmental processes and how model systems can be used to elucidate ECM function. The topics addressed range from how ECM influences early development as well as repair processes in the adult that recapitulate developmental pathways.
Download or read book Neuromuscular Junctions in Drosophila written by and published by Academic Press. This book was released on 1999-04-29 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neuromuscular Junctions in Drosophila gathers the main contributions that research using the fruit fly Drosophila melanogaster has made in the area of synapse development, synapse physiology, and excitability of muscles and nerve cells. The chapters in this book represent a synthesis of major advances in our understanding of neuronal development and synaptic physiology, which have been obtained using the above approach.This book is directed to the general neuroscience audience: researchers, instructors, graduate students, and advanced undergraduates who are interested in the mechanisms of synapse development and physiology. However, the book will also be a valuable resource for those that use the fruit fly as a model system in their laboratories. Key Features* Synthesizes the genetic approaches used to study synaptic development and function at the neuromuscular junction, using flies as a model system* Covers major recent advances in muscle development, pathfinding, synapse maturation and plasticity, exo- and endocytosis, and ion channel function* Written in clear language that is easily understandable to readers not already familiar with fruit fly research* Includes numerous diagrams and extensive reference lists
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2007 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vascular Pharmacology Cytoskeleton and Extracellular Matrix written by and published by Academic Press. This book was released on 2018-01-05 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vascular Pharmacology: Cytoskeleton and Extracellular Matrix, Volume 81, contains the latest information on the vascular cytoskeleton and extracellular matrix that is presented with helpful illustrations and supporting references by prominent scientists and highly-recognized experts in the vascular field. Topics of interest in this new release include Pharmacology of the Vascular Cytoskeleton and Extracellular Matrix, The Dynamic Actin Cytoskeleton in Smooth Muscle, The Role of the Actin Cytoskeleton in the Regulation of Vascular Inflammation, The Smoothelin Family of Proteins and the Smooth Muscle Cell Contractile Apparatus, Smooth Muscle Cytoskeletal Network Regulates Expression of the Profibrotic Genes PAI-1 and CTGF, and more. Presents a must-read book on the vascular cytoskeleton and extracellular matrix Contains up-to-date information on the structure, function and development of the vascular cell cytoskeleton Includes contributors from prominent scientists and highly-recognized experts with major accomplishments in the fields of the vascular cytoskeleton, extracellular matrix, mechanotransduction and vascular remodeling
Download or read book Evolution of Extracellular Matrix written by Fred W. Keeley and published by Springer Science & Business Media. This book was released on 2013-03-15 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: The evolution of single cells into multicellular organisms was mediated, in large part, by the extracellular matrix. The proteins and glycoconjugates that make up the extracellular matrix provide structural support to cellular complexes, facilitate cell adhesion and migration, and impart mechanical properties that are important for tissue function. Each class of ECM macromolecule has evolved to incorporate distinctive properties that are defined by conserved modules that are mixed together to achieve appropriate function. This volume provides a comprehensive analysis of how the major ECM components evolved over time in order to fill their specific roles found in modern organisms. The major focus is on the structural matrix proteins, matricellular proteins, and more complex ECM structures such as basement membranes. Adhesive proteins and their receptors are also discussed.
Download or read book Integrins written by and published by Elsevier. This book was released on 2012-12-02 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integrins: Molecular and Biological Responses to the Extracellular Matrix will help basic, applied, and clinical researchers keep up with the explosion of literature on the integrin family of proteins. This volume extends material previously covered in Receptors for Extracellular Matrix. It addresses some of the most exciting areas of integrin biology, including the varied roles of integrins in cell division, differentiation, movement, wound healing, inflammation, thrombosis, osteoporosis, and cancer. Describes key aspects of integrin structure, function, and biology Covers collagen receptors, epithelial cell integrins, leukocyte integrins, platelet integrins, integrin signaling, and integrin antagonists Investigates the expression and role of integrins during development and in the cytoskeleton Includes the actions and influences of integrins in inflammation, thrombosis, and osteoporosis
Download or read book The Cadherin Superfamily written by Shintaro T. Suzuki and published by Springer. This book was released on 2016-06-02 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an overview of the entire field of cadherin research and provides the current basic concept of cadherins. Cadherins have been widely accepted as key regulators of animal development and physiological functions, and it also has become clear that they play essential roles in various human diseases. With contributions by leading scientists, the book covers various aspects of the cadherin superfamily including the history of cadherin research, basic properties of classical cadherins as well as non-classical cadherins, cadherin-associated proteins, and the roles of cadherins in health and diseases. In addition, the book presents some contradictory results and important unanswered questions, and the authors propose their working hypotheses or future directions, to inspire future studies. This volume enables graduate students and young researchers to learn the basics and gain a comprehensive image of the cadherin superfamily, and experts in the field will easily find various topics of interest in relevant areas of study. Additionally, a list of cadherin-related diseases is included for quick reference to cadherins in human diseases.
Download or read book Signaling and the Cytoskeleton written by Kermit L. Carraway and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph explores the relationships between cell signaling and the cytoplasmic cytoskeleton in fundamental cell processes, thus bridging the gap between two very active aspects of molecular cell biology. It covers the two main - and reciprocal - questions of these relationships: How are structure and function of the cytoskeleton affected by external signals which impinge on the cell? How does the cytoskeleton influence the cellular signaling processes which determine cell behavior?
Download or read book Lung Development written by Claude Gaultier and published by Springer. This book was released on 2013-05-27 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowledge about the mechanisms of lung development has been growing rapidly, especially with regard to cellular and molecular aspects of growth and differentiation. This authoritative international volume reviews key aspects of lung development in health and disease by providing a comprehensive review of the complex series of cellular and molecular interactions required for lung development. It covers such topics as pulmonary hypoplasia, effects of malnutrition, and pulmaonary angiogenesis. An indispensable reference for all those involved in studying or treating lung disease in neonates and children, the book offers a unique view of the development of this essential organ.
Download or read book The Neural Crest written by Nicole Le Douarin and published by Cambridge University Press. This book was released on 1999-11-28 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 1999 edition of The Neural Crest contains comprehensive information about the neural crest, a structure unique to the vertebrate embryo, which has only a transient existence in early embryonic life. The ontogeny of the neural crest embodies the most important issues in developmental biology, as the neural crest is considered to have played a crucial role in evolution of the vertebrate phylum. Data that analyse neural crest ontogeny in murine and zebrafish embryos have been included in this revision. This revised edition also takes advantage of recent advances in our understanding of markers of neural crest cell subpopulations, and a full chapter is now devoted to cell lineage analysis. The major research breakthrough since the first edition has been the introduction of molecular biology to neural crest research, enabling an elucidation of many molecular mechanisms of neural crest development. This book is essential reading for students and researchers in developmental biology, cell biology, and neuroscience.
Download or read book American Doctoral Dissertations written by and published by . This book was released on 2002 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vertebrate Cranial Placodes written by GERHARD. SCHLOSSER and published by CRC Press. This book was released on 2021-04-29 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of the cranial sense organs of vertebrates arise from embryonic structures known as cranial placodes. Such placodes also give rise to sensory neurons that transmit information to the brain as well as to many neurosecretory cells. This book focuses on the development of sensory and neurosecretory cell types from cranial placodes by introducing the vertebrate head with its sense organs and neurosecretory organs and providing an overview of the various cranial placodes and their derivatives, including evidence of common embryonic primordia. Schlosser discusses how these primordia are established in the early embryo and how individual placodes develop. The latter chapters explain how various placodally derived sensory and neurosecretory cell types differentiate into discrete structures.
Download or read book Scientific Frontiers in Developmental Toxicology and Risk Assessment written by National Research Council and published by National Academies Press. This book was released on 2000-12-21 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific Frontiers in Developmental Toxicology and Risk Assessment reviews advances made during the last 10-15 years in fields such as developmental biology, molecular biology, and genetics. It describes a novel approach for how these advances might be used in combination with existing methodologies to further the understanding of mechanisms of developmental toxicity, to improve the assessment of chemicals for their ability to cause developmental toxicity, and to improve risk assessment for developmental defects. For example, based on the recent advances, even the smallest, simplest laboratory animals such as the fruit fly, roundworm, and zebrafish might be able to serve as developmental toxicological models for human biological systems. Use of such organisms might allow for rapid and inexpensive testing of large numbers of chemicals for their potential to cause developmental toxicity; presently, there are little or no developmental toxicity data available for the majority of natural and manufactured chemicals in use. This new approach to developmental toxicology and risk assessment will require simultaneous research on several fronts by experts from multiple scientific disciplines, including developmental toxicologists, developmental biologists, geneticists, epidemiologists, and biostatisticians.
Download or read book Cellular Adhesion in Development and Disease written by and published by Academic Press. This book was released on 2015-02-27 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cell adhesion is a fundamental determinant of embryonic development and organogenesis. Cellular Adhesion in Development and Disease, volume 112 in Current Topics in Developmental Biology, comprehensively surveys current developments in understanding how adhesion systems affect organismal development. Topics covered include nectins, nectin-like molecules, and afadin in development; cadherin adhesion, signaling, and morphogenesis; endothelial cell junctions; epidermal development and barrier formation; and more. This book surveys current understanding of how adhesion systems affect organismal development
Download or read book Angiogenesis Assays written by Carolyn A. Staton and published by John Wiley & Sons. This book was released on 2007-01-11 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Angiogenesis, the development of new blood vessels from the existing vasculature, is essential for physiological growth and over 18,000 research articles have been published describing the role of angiogenesis in over 70 different diseases, including cancer, diabetic retinopathy, rheumatoid arthritis and psoriasis. One of the most important technical challenges in such studies has been finding suitable methods for assessing the effects of regulators of eh angiogenic response. While increasing numbers of angiogenesis assays are being described both in vitro and in vivo, it is often still necessary to use a combination of assays to identify the cellular and molecular events in angiogenesis and the full range of effects of a given test protein. Although the endothelial cell - its migration, proliferation, differentiation and structural rearrangement - is central to the angiogenic process, it is not the only cell type involved. the supporting cells, the extracellular matrix and the circulating blood with its cellular and humoral components also contribute. In this book, experts in the use of a diverse range of assays outline key components of these and give a critical appraisal of their strengths and weaknesses. Examples include assays for the proliferation, migration and differentiation of endothelial cells in vitro, vessel outgrowth from organ cultures, assessment of endothelial and mural cell interactions, and such in vivo assays as the chick chorioallantoic membrane, zebrafish, corneal, chamber and tumour angiogenesis models. These are followed by a critical analysis of the biological end-points currently being used in clinical trials to assess the clinical efficacy of anti-angiogenic drugs, which leads into a discussion of the direction future studies should take. This valuable book is of interest to research scientists currently working on angiogenesis in both the academic community and in the biotechnology and pharmaceutical industries. Relevant disciplines include cell and molecular biology, oncology, cardiovascular research, biotechnology, pharmacology, pathology and physiology.
Download or read book Signaling Pathways in Developing and Pathological Tissues and Organs of the Craniofacial Complex written by Thimios Mitsiadis and published by Frontiers Media SA. This book was released on 2018-10-18 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: Head formation requires the well-orchestrated and harmonised development of various tissues and organs within the craniofacial complex. A big variety of signaling pathways are involved in this process by controlling cell proliferation, migration, differentiation, tissue morphogenesis, homeostasis and regeneration. Deregulation and malfunction of these signaling molecules may lead to mild or severe craniofacial pathologies. This eBook is a collection of articles dealing with a variety of important signals involved in the control of developmental and pathological events of craniofacial organs and tissues. These recent advances show the importance of signaling pathways in craniofacial physiology and pathology and generate important new knowledge aiming the development of new pharmaceutical products that mimic and/or block the actions of specific molecules.
