The Extracellular Matrix In Neural Development And Regeneration

This volume provides comprehensive procedures for analyzing the extracellular matrix in native, injured, and engineered neural tissues. Divided into four parts, each focusing on different aspects of the extracellular matrix and the nervous system, Extracellular Matrix covers methods to analyze native tissue, in vitro models for investigating cell-extracellular matrix interactions in a variety of contexts, protocols to investigate the role of the extracellular matrix in nervous system injury, degeneration, and regeneration, as well as therapeutics and engineered systems. Each chapter is written by leading experts and presents established protocols in a concise format, encompassing current technologies as well as methods developed over years of research. Beginning with an introduction to the method, chapters continue with a listing of the materials and equipment, step-by-step protocols, and a Notes section with troubleshooting tips, supplemental details and alternative approaches, as well as a list of references for further information. As part of the practical and convenient Neuromethods series, Extracellular Matrix serves as an invaluable aid for researchers studying this vital area of neuroscience.

This book is based on the NATO Advanced Research Workshop on "Mesenchymal-Epithelial Interactions in Neural Development" which was held in Berlin during March 1986. The idea that it may be the time for this workshop arose from a discussion among the organizers who met at a conference in Innsbruck. During the twenties, Spemann demonstrated that, in vertebrates, the formation of neuroepithelium depends on the induction by specific mesodermal derivatives. This was about the first time that mesenchymal-epithelial interactions had been recognized as an important mechanism in the development of an epithelial organ. Since then two things had become clear: 1) The identity and role of molecules, elaborated at mesenchymal-neuroepithelial interfaces had been partially elucidated in spinal cord and peripheral nerve ontogeny but, until recently, had been ignored in studies on the development of the brain. 2) In many-non-neural epithelia, the surrounding mesenchyme regulates such fundamental developmental steps as, for example, cell proliferation, morphogenesis and cell differentia tion, and there is no reason to exclude similar influences and interactions from brain development. It seemed to us that the importance and implications of many of these findings had not been appreciated by many developmental neurobiologists and that an attempt should be made to initiate discussions and exchange of ideas among different groups of scientists involved in extracellular matrix (ECM) research. This turned out to be a formidable task because of the great diversity of disciplines contributing findings to this active field.

Data of all relevant aspects of neuronal cell growth and differentiation are presented in this volume. Regulation of expression, storage and release of nerve growth factors, receptor control and the cellular responses to growth factors are comprehensively discussed. Treated are also influences of various neurotransmitters on neuronal morphogenesis and new results of interactions of cells and mediators of the immune, endocrine and nervous system. Special emphasis is given to those factors regulating regeneration and nerve spreading after injuries of the nerve tissue.

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.

In the central nervous system, extracellular matrix (ECM) molecules, including hyaluronic acid, chondroitin and heparan sulfate proteoglycans, tenascins, reelin and agrin, along with their remodelling enzymes, such as neurotrypsin, neuropsin, plasminogen activators, and metalloproteinases, are secreted by neural and non-neural cells into the extracellular space to form the ECM and signal via ECM receptors. Despite recent advances in the ECM field, the importance of neural ECM for physiological and pathological processes is currently less widely recognized than that of other CNS elements. This book will enlighten recent progress in our understanding of mechanisms by which neural ECM, its receptors and activity-dependent ECM remodeling regulate neural development, synaptic plasticity, and contribute to pathological changes in the brain. In the first part, the roles of ECM signaling and proteolytic modification of ECM in neurogenesis, neural migration, axonal pathfinding, synaptogenesis, synaptic and homeostatic plasticity will be discussed. The second part will focus on the emerging ECM-dependent mechanisms associated with CNS injury, epilepsy, neurodegenerative and neuropsychiatric diseases. For further development of neural ECM field, a very important contribution is the third part of the book, which is devoted to neural ECM-targeting tools and therapeutics. The concluding fourth part will highlight advances in development of artificial ECM and ECM-based systems suitable for multisite recording and stimulation of neural cells. Authors are the leading experts in the field of brain extracellular matrix in health and disease Book covers the most important aspects of brain extracellular matrix in health and disease Interesting for both scientists and clinicians

While a cure for spinal cord injury remains elusive, the contents of this volume convey a sense of progress towards this goal. More has been learned about the primary and secondary consequences of spinal cord injury and more is being understood about recovery mechanisms that are intrinsic to the nervous system and that might be further encouraged. Expanding the control capacity of uninjured portions of the nervous system may be one approach to improving the functional capabilities of those afflicted with this disorder. New therapies in the form of transplantable cells that can encourage growth or myelination or prevent secondary damage or that can substitute for injured cells appear promising for future applications. Genetic and tissue engineering studies give us further hope, and under continuous development are novel drugs with greater specificity and fewer detrimental effects and improved delivery methods for such drugs. The volume is organized into six topic sections, including I) Strategies for Spinal Cord Injury Repair, II) Plasticity of the Injured Spinal Cord: Retraining Neural Circuits to Promote Motor Recovery, III) Impact of Neuroprosthetic Applications on Functional Recovery, IV) Neurotrophins and Activity-Dependent Plasticity, V) Candidate Cells for Transplantation into the Injured CNS and VI) New Directions in Regeneration Research. Both clinical and experimental animal studies are presented in the first three sections, while predominantly basic research is the focus of the second half of the book.

In two freestanding volumes, the Textbook of Neural Repair and Rehabilitation provides comprehensive coverage of the science and practice of neurological rehabilitation. Revised throughout, bringing the book fully up to date, this volume, Neural Repair and Plasticity, covers the basic sciences relevant to recovery of function following injury to the nervous system, reviewing anatomical and physiological plasticity in the normal central nervous system, mechanisms of neuronal death, axonal regeneration, stem cell biology, and research strategies targeted at axon regeneration and neuron replacement. New chapters have been added covering pathophysiology and plasticity in cerebral palsy, stem cell therapies for brain disorders and neurotrophin repair of spinal cord damage, along with numerous others. Edited and written by leading international authorities, it is an essential resource for neuroscientists and provides a foundation for the work of clinical rehabilitation professionals.