Download or read book Investigating the Mechanisms of Random and Directed Migration of Leukocytes in Vivo written by Francisco Alberto Barros Becker and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The innate immune system is the first line of defense against infection and injury. Neutrophils and macrophages are the main cellular component of this response and the correct recruitment of these cells to damage or infected tissues is essential for host survival. The recruitment of immune cells can be separated in two main components: the signals promoting migration and the mechanisms implemented to achieve movement. This dissertation investigates both components by presenting details on the migration of neutrophils and macrophages in a complete vertebrate organism, the larval zebrafish. The motility of leukocytes has been widely described in vitro, and their migration mode has been classically considered to be amoeboid. Macrophages have been described to be able to migrate in either amoeboid or mesenchymal modes in vitro although these results are controversial. In this thesis, we first investigated the mode of motility used by neutrophils and macrophages during random migration in vivo. Using high-resolution live microscopy, we discovered that during random migration macrophages move in a mesenchymal-like mode, in contrast to neutrophils, a well-described amoeboid cell. After investigating the mechanisms of random migration, we aimed to study directed migration during an immune response. During an inflammatory response neutrophils and macrophages need to effectively migrate to the site of injury. Burn injuries are complex wounds that have been shown to induce a different immune response than cut wounds. Unfortunately, most of our knowledge regarding this response has been obtained in later phases of this process. We, therefore, used a zebrafish burn model to investigate early recruitment events. Here we show that during early phases of the inflammatory reactions, neutrophil and macrophage chemotaxis is driven by distinct signals. Neutrophils are sensitive to ATP and ROS signaling and IL-6R priming to directly migrate to a burn. Macrophage chemotaxis is only ROS dependent, as they can migrate normally in the absence of ATP or IL-6R. Altogether, this work presents novel insights on how innate immune cells move in vivo and what signals drive this migration. This research offers new perspectives on the basic biology of these cells and their response following complex wounding.

Download or read book Microcirculation written by Ronald F. Tuma and published by Academic Press. This book was released on 2011-04-28 with total page 999 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference is a volume in the Handbook of Physiology, co-published with The American Physiological Society. Growth in knowledge about the microcirculation has been explosive with the field becoming fragmented into numerous subdisciplines and subspecialties. This volume pulls all of the critical information into one volume. Meticulously edited and reviewed. Benefit: Provides investigators a unique tool to explore the significance of their findings in the context of other aspects of the microcirculation. In this way, the updated edition has a direct role in helping to develop new pathways of research and scholarship Highlights the explosive growth in knowledge about the microcirculation including the biology of nitric oxide synthase (NOS), endothelial cell signaling, angiogenesis, cell adhesion molecules, lymphocyte trafficking, ion channels and receptors, and propagated vasomotor responses. Benefit: Microcirculatory biology has become fragmented into numerous sub-disciplines and subspecialties, and these reference reintegrates the information in one volume

Download or read book Immune Biology of Allogeneic Hematopoietic Stem Cell Transplantation written by Gerard Socie and published by Academic Press. This book was released on 2018-11-22 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Immune Biology of Allogeneic Hematopoietic Stem Cell Transplantation: Models in Discovery and Translation, Second Edition once again provides clinical and scientific researchers with a deep understanding of the current research in this field and the implications for translational practice. By providing an overview of the immune biology of HSCT, an explanation of immune rejection, and detail on antigens and their role in HSCT success, this book embraces biologists and clinicians who need a broad view of the deeply complex processes involved. It then moves on to discuss the immunobiology mechanisms that influence graft-versus-host disease (GVHD), graft-versus-leukemia effect, and transplantation success. Using illustrative figures, highlighting key issues, describing recent successes, and discussing unanswered questions, this book sums up the current state of HSCT to enhance the prospects for the future. The second edition is fully revised and includes new chapters on microbiome, metabolism, kinase targets, micro-RNA and mRNA regulatory mechanisms, signaling pathways in GVHD, innate lymphoid system development, recovery and function in GVHD, genetically engineered T-cell therapies, immune system engagers for GVHD and graft-versus-tumor, and hematopoietic cell transplant for tolerance induction in solid organ grafts. Brings together perspectives from leading laboratories and clinical research groups to highlight advances from bench to the bedside Guides readers through the caveats that must be considered when drawing conclusions from studies with animal models before correlating to clinical allogeneic hematopoietic stem cell transplantation (HSCT) scenarios Categorizes the published advances in various aspects of immune biology of allogeneic HSCT to illustrate opportunities for clinical applications

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 Vascular Responses to Pathogens written by Felicity N.E. Gavins and published by Academic Press. This book was released on 2015-10-31 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vascular Responses to Pathogens focuses on the growing research from leaders in the field for both the short and long-term impact of pathogens on the vasculature. It discusses various organisms, including bacteria, parasites, and viruses, and their role in key events leading to vascular disease. Formatted to discuss the topic of the interaction of pathogens with the vascular rather than individual diseases described separately, this reference demonstrates that common mechanisms are at play in many different diseases because they have a similar context, their vasculature. This all-inclusive reference book is a must-have tool for researchers and practicing clinicians in the areas of vascular biology, microvasculature, cardiology, and infectious disease. Covers a wide spectrum of organisms and provides analysis of pathogens and current therapeutic strategies in the context of their vasculature Provides detailed perspectives on key components contributing to vascular pathogens from leaders in the field Interfaces between both vascular biology and microbiology by encompassing information on how pathogens affect both macro and microvasculature Includes coverage of the clinical aspects of sepsis and current therapeutic strategies and anti-sepsis drugs

Download or read book Tumors and Tumor Like Lesions of the Hepatobiliary Tract written by Arthur Zimmermann and published by Springer. This book was released on 2016-11-02 with total page 3517 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers all liver tumors and lesions that clinically and radiologically mimic liver tumors. It provides readers with a comprehensive overview of this complex and rapidly evolving field. All aspects of surgical pathology are addressed, supplemented by detailed presentations of the lesions’ cell-biologic and molecular features. In addition, the methods employed for diagnosis and diagnostic algorithms are discussed. It appeals to pathologists and hepatologists and serves as an invaluable aid to diagnosis.The field of liver tumors and tumor-like lesions in adults and children has experienced tremendous advances in recent years. Specifically, the recognition of novel entities, deepened insights into known tumors, and refinement of classifications have necessitated continual updates and reappraisals. In addition, previous understanding of hepatic carcinogenesis and tumor progression has been transformed by the very rapid evolution of our understanding of cell biology, genomics, signaling pathways, cell interactions, and mechanisms of invasion and spread of hepatic tumor cells. These general pathology issues must be combined with surgical pathology if a comprehensive understanding of liver tumor pathology is to be achieved.

Download or read book How Tobacco Smoke Causes Disease written by United States. Public Health Service. Office of the Surgeon General and published by . This book was released on 2010 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report considers the biological and behavioral mechanisms that may underlie the pathogenicity of tobacco smoke. Many Surgeon General's reports have considered research findings on mechanisms in assessing the biological plausibility of associations observed in epidemiologic studies. Mechanisms of disease are important because they may provide plausibility, which is one of the guideline criteria for assessing evidence on causation. This report specifically reviews the evidence on the potential mechanisms by which smoking causes diseases and considers whether a mechanism is likely to be operative in the production of human disease by tobacco smoke. This evidence is relevant to understanding how smoking causes disease, to identifying those who may be particularly susceptible, and to assessing the potential risks of tobacco products.

Download or read book Mechanotransduction written by and published by Academic Press. This book was released on 2014-07-29 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in Molecular Biology and Translational Science provides a forum for discussion of new discoveries, approaches, and ideas in molecular biology. It contains contributions from leaders in their fields and abundant references. Volume 126 features in-depth reviews that focus on the tools required to investigate mechanotransduction. Additional chapters focus on how we can use these tools to answer fundamental questions about the interaction of physical forces with cell biology, morphogenesis, and function of mature structures. Chapters in the volume are authored by a unique combination of cell biologists and engineers, providing a range of perspectives on mechanotransduction. Provides a unique combination of perspectives from biologists and engineers Engaging to people of many training backgrounds

Download or read book Blood Spinal Cord and Brain Barriers in Health and Disease written by Hari Shanker Sharma and published by Elsevier. This book was released on 2003-12-21 with total page 623 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent research into the anatomy and pathophysiology of the blood-brain and blood-spinal cord barriers suggests that a breakdown in these barriers can result in several diseases affecting the central nervous system (CNS). This book presents new findings in the area of blood-brain barrier research that suggest barriers play important roles in health and disease conditions. It also discusses the development of new drugs that can modulate the barrier function in the CNS and may provide new approaches to treating neurological diseases such as Alzheimer's disease and other motor neuron diseases, as well as spinal cord trauma. Key Features * Presents the recent progress made in the research on the blood-brain and spinal cord barrier * Contains numerous illustrations of light and electron micrographs * Includes Foreword written by two eminent researchers in the field, Milton Brightman and Jorge Cervos-Navarro

Download or read book Transplantation of the Liver E Book written by Ronald W. Busuttil and published by Elsevier Health Sciences. This book was released on 2014-12-24 with total page 1520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drs. Busuttil and Klintmalm present Transplantation of the Liver, 3rd Edition, which has been thoroughly revised to offer you the latest protocols, surgical approaches, and techniques used in this challenging procedure. Encompassing today's expert knowledge in the field, this medical reference book is an ideal single source for authoritative, up-to-date guidance on every imaginable aspect of liver transplantation. Consult this title on your favorite e-reader, conduct rapid searches, and adjust font sizes for optimal readability. Access valuable pearls, pitfalls, and insights from Dr. Ronald Busuttil and Dr. Goran Klintmalm, two of the world's preeminent experts in liver surgery. Understand today's full range of transplantation techniques with complete step-by-step descriptions of each, and access the background information and management options for each hepatic disease entity. Take advantage of detailed discussions of everything from pathophysiology and patient and donor selection, to transplantation anesthesia and operative procedures; immunosuppression; postoperative care; and ethical issues. Overcome your toughest challenges in liver transplantation. Many new and thoroughly revised chapters include: Deceased Organ Donation after Cardiac and Brain Death; Liver Transplantation for Non-Alcoholic Steatohepatitis; Extended Criteria Donors; Best Techniques for Biliary and Vascular Reconstruction in Living Donor Transplantation; Small for Size Syndrome; Dual Grafts for Transplantation; Arterial Reconstructions-Pitfalls; Transition of Pediatric Patients to Adulthood; Immunosuppressive Biologic Agents; Long Term Toxicity of Immunosuppressive Therapy; Stem Cell and Liver Regeneration; and Extracorporeal Perfusion for Resuscitation of Marginal Grafts. Stay current in your field and optimize patient outcomes with coverage of the most recent advances in living donor transplantation, pediatric transplantation, and gene and stem cell therapy. Access the latest information on anti-rejection/immunosuppressive drugs, as well as comprehensive discussions of each drug or combination of drugs used to suppress immune system.

Download or read book Bone Tissue Engineering written by Jeffrey O. Hollinger and published by CRC Press. This book was released on 2004-10-14 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on bone biology, Bone Tissue Engineering integrates basic sciences with tissue engineering. It includes contributions from world-renowned researchers and clinicians who discuss key topics such as different models and approaches to bone tissue engineering, as well as exciting clinical applications for patients. Divided into four sections, t

Download or read book PI3K signalling written by Klaus Okkenhaug and published by Frontiers Media SA. This book was released on 2015-03-05 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: The PI3Ks control many key functions in immune cells. PI3Ks phosphorylate PtdIns(4,5)P2 to yield PtdIns(3,4,5)P3. Initially, PI3K inhibitors such as Wortmannin, LY294002 and Rapamycin were used to establish a central role for Pi3K pathway in immune cells. Considerable progress in understanding the role of this pathway in cells of the immune system has been made in recent years, starting with analysis of various PI3K and Pten knockout mice and subsequently mTOR and Foxo knockout mice. Together, these experiments have revealed how PI3Ks control B cell and T cell development, T helper cell differentiation, regulatory T cell development and function, B cell and T cell trafficking, immunoglobulin class switching and much, much more. The PI3Kd inhibitor idelalisib has recently been approved for the treatment of B cell lymphoma. Clinical trials of other PI3K inhibitors in autoimmune and inflammatory diseases are also in progress. This is an opportune time to consider a Research Topic considering when what we have learned about the PI3K signalling module in lymphocyte biology and how this is making an impact on clinical immunology and haematology.

Download or read book Cell Migration written by Claire M. Wells and published by Humana Press. This book was released on 2017-05-04 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cell migration is a key component of many biological processes including embryonic development, immune responses, wound healing, organ regeneration, and cancer cell metastasis, thus making it an exciting and crucial field of study. The aim of Cell Migration: Developmental Methods and Protocols, Second Edition is to bring together a wide range of these techniques from the more basic migration assays, which are still the foundation of many cell migration studies, to state-of-the-art techniques and recent technical advances. Divided into three convenient parts, the volume begins with a number of basic in vitro migration assays including measurements of wound healing, cell scattering, invasion, and chemotaxis, as well as more complex measurements of transendothelial migration, the use of microfluidic chambers, and imaging cell migration in 3D. It continues with procedures for the imaging and measurement of cell migration in vivo including protocols for the use of chick, drosophila, and zebrafish embryos, and methods to measure metastatic spread and angiogenesis in mice, then concludes with a vital section on emerging techniques in the cell migration field including the use of TIRF, FRAP, and FRET microscopy. Written in the highly successful Methods in Molecular BiologyTM series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and notes from the experts on troubleshooting and avoiding known pitfalls. Comprehensive and up-to-date, Cell Migration: Developmental Methods and Protocols, Second Edition provides a comprehensive catalogue of techniques for the study of cell migration that can be used as a useful reference source for any researcher who wishes to explore this significant area of cell biology.

Download or read book Clinical Ophthalmic Oncology written by Arun D. Singh and published by Springer Science & Business Media. This book was released on 2013-10-10 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by internationally renowned experts, Clinical Ophthalmic Oncology provides practical guidance and advice on the diagnosis and management of the complete range of ocular cancers. The book supplies all of the state-of-the-art knowledge required in order to identify these cancers early and to treat them as effectively as possible. Using the information provided, readers will be able to provide effective patient care using the latest knowledge on all aspects of ophthalmic oncology, to verify diagnostic conclusions based on comparison with numerous full-color clinical photographs, and to locate required information quickly owing to the clinically focused and user-friendly format. In this volume guidance is provided on diagnosis and therapy for retinal tumors including vitreoretinal lymphoma and paraneoplastic disorders.

Download or read book Essentials of Glycobiology written by Ajit Varki and published by CSHL Press. This book was released on 1999 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sugar chains (glycans) are often attached to proteins and lipids and have multiple roles in the organization and function of all organisms. "Essentials of Glycobiology" describes their biogenesis and function and offers a useful gateway to the understanding of glycans.

Download or read book Cell Polarity in Development and Disease written by Douglas W Houston and published by Academic Press. This book was released on 2017-11-14 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cell Polarity in Development and Disease offers insights into the basic molecular mechanisms of common diseases that arise as a result of a loss of ordered organization and intrinsic polarity. Included are diseases affecting highly polarized epithelial tissues in the lung and kidney, as well as loss and gain of cell polarity in the onset and progression of cancer. This book provides a basic resource for understanding the biology of polarity, offering a starting point for those thinking of targeting cell polarity for translational medical research. Provides basic science understanding of cell polarity disease and development Covers diseases affecting polarized epithelial tissues in the lung and kidney, also covering the progression of cancer Includes historical context of cell polarity research for potential future breakthroughs

Download or read book Handbook of Vertebrate Immunology written by Paul-Pierre Pastoret and published by Academic Press. This book was released on 1998-05-21 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique book provides a comprehensive and comparative guide to the immune systems of major vertebrate species, including domestic and wild animals of veterinary or medical interest, fish and amphibia. Data in this essential reference work has been compiled by world-renowned editors and an international group of authors. For each species, the information is presented in a structured 'user-friendly' format allowing easy cross reference and comparison between the various species. This book will be considered the definitive reference work on vertebrate immunology and will be essential for scientists and professionals working in Immunology, Vaccinology or with Animal Models, for students of Veterinary or Human Medicine, Biology and researchers in Comparative Medicine and Physiology. Each section, devoted to a major animal group covers: Lymphoid organs and their anatomical disposition Leukocytes and their markers Leukocyte traffic and associated molecules Cytokines T cell receptors Immunoglobulins MHC antigens Ontogeny of the immune system Passive transfer of immunity Neonatal immune responses Non-specific immunity Complement system Mucosal immunity Immunodeficiencies Tumours of the immune system Autoimmunity