[PDF] Transplantation Of Immortalized Glial Cells Into The Mammalian Central Nervous System eBook

Author :
Publisher : Elsevier
Page : 697 pages
File Size : 29,58 MB
Release : 1988-12-01
Category : Medical
ISBN : 0080862039

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Transplantation into the Mammalian CNS

Author : F. Gage
Publisher : Springer Science & Business Media
Page : 203 pages
File Size : 33,40 MB
Release : 2012-12-06
Category : Medical
ISBN : 3642803083

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This volume is based on a meeting of the Fondation IPSEN, held in Paris on Sep tember 18, 1995 to address the main issues of nervous system stem cells biology. Cell replacement in the adult mammals is not unusual outside the nervous sys tem. In fact, the nervous system is unique in lacking the ability to replace cells, following damage. Most neurons, in the adult central nervous system are termin of the organism and are not replaced ally differentiated, exist through the life when they die. There are, however, regions of the postnatal brain that continue to produce new neurons, but the fate and longevity of those cells are not well known. Evidence exists that small populations of neurons continue to be born in the adult ventricular zone, olfactory epithelium and hippocampus. In the adult hippocampus, newly born neurons originate from putative stem cells that exist in the sub granular zone of the dentate gyrus. Progeny of these putative stem cells differentiate into neurons in the granular layer within a month of the cells' birth, and this late neurogenesis continues throughout the adult life of the rodent. By understanding the nature of progenitor cells present in the embryonic and adult brains, the change in their population dynamics during development, and the factors that influence their proliferation, fate choice and differentiation, it may be possible to develop a strategy to manipulate cells in situ to treat neuro degenerative diseases or the injured adult brain.

Author : Gunnar Jeserich
Publisher : Springer Science & Business Media
Page : 399 pages
File Size : 37,9 MB
Release : 2012-12-06
Category : Medical
ISBN : 3642606695

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An excellent survey of the most recent advances in the area of cellular and molecular biology of glial cells and their involvement in remyelination and functional repair in the CNS. A major part of this book deals with signaling paths within and among neural cells. Glial cells (astrocytes, oligodentrocytes, microglial cells) themselves release substantial amounts of cytokines, growth factors and other signaling molecules, which play an important role during injury and regeneration. Another signaling route between neurons and glial cells follows ion channels and neurotransmitter receptors. In addition to animal models, human oligodentrocytes in cell culture and in the human MS brain are characterized with respect to their immunocytochemistry and function.

Author : Brian D. Gulbransen
Publisher : Biota Publishing
Page : 72 pages
File Size : 30,75 MB
Release : 2014-07-01
Category : Medical
ISBN : 1615046615

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The enteric nervous system (ENS) is a complex neural network embedded in the gut wall that orchestrates the reflex behaviors of the intestine. The ENS is often referred to as the “little brain” in the gut because the ENS is more similar in size, complexity and autonomy to the central nervous system (CNS) than other components of the autonomic nervous system. Like the brain, the ENS is composed of neurons that are surrounded by glial cells. Enteric glia are a unique type of peripheral glia that are similar to astrocytes of the CNS. Yet enteric glial cells also differ from astrocytes in many important ways. The roles of enteric glial cell populations in the gut are beginning to come to light and recent evidence implicates enteric glia in almost every aspect of gastrointestinal physiology and pathophysiology. However, elucidating the exact mechanisms by which enteric glia influence gastrointestinal physiology and identifying how those roles are altered during gastrointestinal pathophysiology remain areas of intense research. The purpose of this e-book is to provide an introduction to enteric glial cells and to act as a resource for ongoing studies on this fascinating population of glia. Table of Contents: Introduction / A Historical Perspective on Enteric Glia / Enteric Glia: The Astroglia of the Gut / Molecular Composition of Enteric Glia / Development of Enteric Glia / Functional Roles of Enteric Glia / Enteric Glia and Disease Processes in the Gut / Concluding Remarks / References / Author Biography

Author : Alessandro Michelucci
Publisher : Frontiers Media SA
Page : 108 pages
File Size : 42,8 MB
Release : 2018-10-05
Category :
ISBN : 2889456013

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Microglia are essential for the development and function of the adult brain. Their ontogeny, together with the absence of turnover from the periphery and the singular environment of the central nervous system (CNS), make microglia a unique cell population compared to other tissue-macrophages. The unique properties and functions of microglial cells, such as their role in synaptic pruning or the exceptional capacity to scan the brain parenchyma and rapidly react to its perturbations, have emerged in recent years. In the coming years, understanding how microglia acquire and maintain their unique profiles in order to fulfil distinct tasks in the healthy CNS and how these are altered in disease, will be essential to develop strategies to diagnose or treat CNS disorders with an immunological component. This Research Topic covers several aspects of microglial biology, ranging from their origin and the functional role of microglia during development and lifespan, their molecular properties compared with other brain and peripheral immune cells to microglial phenotypes and functional states in neurodegenerative diseases and brain tumours. In conclusion, the present Research Topic provides a comprehensive overview of our current understanding of several cellular and molecular mechanisms that make microglia a unique immune cell population within the healthy CNS as well as under inflammatory, neurodegenerative and tumorigenic processes.

Author : Stephen B. Dunnett
Publisher : Springer Science & Business Media
Page : 554 pages
File Size : 32,70 MB
Release : 1999-10-20
Category : Medical
ISBN : 0896037932

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we might seek alternative sources of donor tissues. Genetic en- neering, expansion of precursor cells, generation of immortalized cell lines, and transplantation between species are all under active investigation. Although significant difficulties remain for each of these alternatives, the problems appear soluble and relevant knowledge is expanding rapidly. As we enter the twenty-first century, the place of neural tra- plantation in experimental neuroscience is continuing to evolve. Rather than being a topic in its own right, neural transplantation increasingly serves as just another technique in the researcher's armory--alongside lesions, pharmaceuticals, gene transfer, and a variety of other techniques--for the experimental manipulation of brain structure and function. This is particularly true for studies of degeneration, plasticity, regeneration, and recovery of function in the nervous system, topics of increasing importance as experimental neurobiology is required to serve the higher needs of neurological and mental health in aging societies. Within this evolving context, Neural Transplantation Methods seeks to serve a particular need: to provide experimental neu- scientists with a source book of information to enable them to select and adapt transplantation techniques to their own expe- mental programs. All authors have been asked to address prac- cal issues, to enable the reader to assess what is available, what are the alternatives, what are the practical issues to be resolved in applying a particular protocol and getting it to work reliably in their unique experimental context.