The Role of Glypican 4 During Mouse Brain Development PDF Download

Author: Stefan Johann Andreas Weiß
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Author: Yi-Huei Linda Jen
Publisher:
ISBN: 9781109524659
Category :
Languages : en
Pages : 153

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Cell surface heparan sulfate proteoglycans (HSPGs) act as co-receptors for multiple families of growth factors that regulate animal cell proliferation, differentiation and patterning. Elimination of heparan sulfate during brain development is known to produce severe structural abnormalities. Here we investigate the developmental role played by one particular HSPG, glypican1 (Gpc1), which is especially abundant on neuronal cell membranes, and is the major HSPG of the adult rodent brain. Mice with a null mutation in Gpc1 were generated and found to be viable and fertile. The major phenotype associated with Gpc1 loss is a highly significant reduction in brain size, with only subtle effects on brain patterning (confined to the anterior cerebellum). The brain size difference emerges very early during neurogenesis (between embryonic days 8.5 and 9.5), and remains roughly constant throughout development and adulthood. By examining markers of different signaling pathways, and the differentiation behaviors of cells in the early embryonic brain, we infer that Gpc1-/- phenotypes most likely result from a transient reduction in FGF signaling. Through the analysis of compound mutants, we provide strong evidence that Fgf17 is the FGF family member through which Gpc1 controls brain size. These data add to a growing literature that implicates the glypican family of HSPGs in organ size control. They also argue that, among heparan sulfate-dependent signaling molecules, FGFs are disproportionately sensitive to loss of HSPGs. Finally, because heterozygous Gpc1 mutant mice were found to have brain sizes half-way between homozygous and wildtype, the data imply that endogenous HSPG levels quantitatively control growth factor signaling, a finding that is both novel and relevant to the general question of how the activities of co-receptors are exploited during development.

Author: Nikos Karamanos
Publisher: Walter de Gruyter
ISBN: 3110258773
Category : Science
Languages : en
Pages : 940

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Over the last decades cell biology and biological chemistry have increasingly turned their attention to the space between cells and revealed an elaborate network of macromolecules essential for structural support, cell adhesion and signaling. This comprehensive handbook of the extracellular matrix will give an overview of the current state of knowledge of matrix components (structure and function), their role in heath and disease (matrix pathobiology) and new aspects related to pharmacological targeting. It will provide an introduction to the extracellular matrix and detailed sections and chapters on: Importance of extracellular matrix in health and disease Matrix proteoglycans (aggrecan, versican, perlecan, SLRPs, syndecans, glypicans, serglycin) Matrix proteinases (remodeling, would healing, regulatory roles in health and disease, metalloproteinases, cystein proteases, plasmin and plasminogen activator system) Glycobiology (hyaluronan and sulfated glycosaminoglycans in cancer, inflammation and metabolic control) Collagens (supramolecular assembly, proteins binding collagen, scaffolds, bacterial and mutated collagens, procollagen proteinases) Cell surface receptors (integrins, syndecans, mechanical strain and TGFb, CD44 and DDR). Biotechnological and pharmacological outlook (matrix regulation by growth factors, hyaluronidases, pathobiology, disease targeting, delivery systems, EMT and proteomics). "The book Extracellular Matrix: Pathobiology and Signaling provides a comprehensive and up to date collection of very relevant topics for understanding the various facets of extracellular matrix and its interactions with cells in normal tissue as well as in disease. It represents the current front-line and will serve as a reference for extracellular matrix and posttranslational modifications." Dick Heinegård, Department of Clinical Sciences Lund, Section Rheumatology, Lund University, Sweden

Author: Howard J. Allen
Publisher: CRC Press
ISBN: 9780824784317
Category : Medical
Languages : en
Pages : 704

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Glycoconjugates Composition: Structure, and Function provides an excellent overview of the composition, biosynthesis, function and structure of the carbohydrate chains of glycoconjugates from higher organisms. It is recommended as a core reference text, providing excellent coverage of the glycoconjugate field.

Author: Mine Ergüven
Publisher: Springer Science & Business Media
ISBN: 9400742347
Category : Medical
Languages : en
Pages : 327

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Carl Edward Sagan’s (1934-1996) one of the famous quotation was “Who are we? We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people.“ From past to date, well-known molecules, enzymes, proteins, lipids and carbohydrates are studied in the pathogenesis of several diseases both as a diagnostic/prognostic biomarker and therapeutic agent. The underlying mechanism of unexplained diseases and failure of therapies are frequently studied with well-known biomarkers, but remain unclear in many cases. As Dr. Sagan said other keys are still waiting to be known in some forgotten corner of a body universe, we find strength to propose that one of them can be the growth factor with cytokine activity named “Midkine” This book summarizes the extensive up-to-date literature overeview with the lastest work of experts about midkine in a detailed format that conveys its role as both a pathologic factor and therapeutic agent.

Author: Yuki Hirota
Publisher: Frontiers Media SA
ISBN: 2889669300
Category : Science
Languages : en
Pages : 217

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Author: Tuan Leng Tay
Publisher: Frontiers Media SA
ISBN: 2889760707
Category : Medical
Languages : en
Pages : 259

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Author: Alexandros Poulopoulos
Publisher: Humana
ISBN: 9781493966868
Category : Medical
Languages : en
Pages : 0

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This detailed volume collects protocols for experimentation into how neurons connect to produce the extraordinary functionalities of the nervous system. Contributed by experts and pioneers in their respective techniques, the book covers synapses in the brain and in culture, their constituents, their structures, their dynamics, and the assemblies they form, all in the structure of a laboratory guide. Written for the highly successful Methods in Molecular Biology series, chapters include brief introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Synapse Development: Methods and Protocols serves as an ideal guide to minimizing the barrier to entry for the integration of new approaches with existing expertise, producing syntheses that will foster novel perspectives on the many ways in which synapses form, transform, and transmit.

Author:
Publisher: Academic Press
ISBN: 9780123812834
Category : Science
Languages : en
Pages : 408

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Glycosaminoglycans (GAGs) are a family of linear polysaccharides that are found in all animal tissues. Several are used as biomaterials, including heparin, heparin sulfate, keratan sulfate, dermatan sulfate, and chondroitin sulfate. This volume discusses the role of GAGs in development, health and disease. This series provides a forum for discussion of new discoveries, approaches, and ideas Contributions from leading scholars and industry experts Reference guide for researchers involved in molecular biology and related fields

Author: Martin Götte
Publisher: Springer Nature
ISBN: 3030734536
Category : Science
Languages : en
Pages : 314

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This book provides a state-of-the-art compendium on the role of proteoglycans and glycosaminoglycans during development and in cancer. It also suggests directions for novel therapeutic and biotechnological applications in stem cell biology. Proteoglycans and glycosaminoglycans, as part of the extracellular matrix, are multifunctional modulators of growth factor, cytokine, integrin and morphogen signaling, which determine both self-renewal, senescence and/or differentiation of stem cells during development. Since proteoglycans modulate cell adhesion and migration they are important organizers of the extracellular matrix within the proper stem cell niche. A malfunctioning of proteoglycans and glycosaminoglycans contributes to the cancer stem cell phenotype, which is linked to therapeutic resistance and recurrence in malignant disease. This book is essential reading for anyone interested in the extracellular matrix and its role in development. The series Biology of Extracellular Matrix is published in collaboration with the American Society for Matrix Biology.