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Regulation Of Ve Cadherin Expression And Dynamic In Endothelial Permeability
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Book Synopsis Regulation of VE-cadherin Expression and Dynamic in Endothelial Permeability by : Jagoda Hebda
Download or read book Regulation of VE-cadherin Expression and Dynamic in Endothelial Permeability written by Jagoda Hebda and published by . This book was released on 2014 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: VE-cadherin is a major adhesion molecule composing endothelial adherens junctions (AJ), which ensure selectivity of the endothelial barrier. Stabilization of the VE-cadherin complex at the surface of endothelial cells plays a pivotal role in the maintenance of vascular homeostasis. Conversely, the disorganization or internalisation of VE-cadherin is a frequent consequence of VE-cadherin modifications (e.g phosphorylation), which promotes in turn vascular permeability. In general, vascular leakage can be observed in both physiological and pathological conditions. Indeed, VE-cadherin phosphorylation caused by pro-angiogenic and pro-permeability factors, among which vascular endothelial growth factor (VEGF) is the prototype, occurs during physiological angiogenesis, as well as tumour-associated angiogenesis. Besides, pro-inflammatory molecules, such as interleukin-8 (IL-8) can also participate in the phosphorylation of VE-cadherin and thereby promote vascular permeability. To best characterise VE-cadherin-mediated increase in vascular permeability under physiological VEGF challenge, we notably investigated the molecular interactions between serine (S665) phosphorylated VE-cadherin and the scaffolding molecule [beta]-arrestin. We also studied the distribution of VE-cadherin in brain endothelial cells under pathological conditions, as provided by the secretome of glioblastoma (GB) brain tumour cells. My work allows the identification of a 43 amino-acid sequence within the C-terminus tail of [beta]-arrestin1 (C-tail) that can directly bind to (S665) phosphorylated VE-cadherin and further triggers its internalisation upon VEGF stimulation. Moreover, we demonstrated the unexpected role of [beta]-arrestin1 C-tail in the down-regulation of the VE-cadherin promoter activity, which results in reduction of VE-cadherin RNA and protein levels, thus contributing to the endothelial barrier properties. Furthermore, in order to evaluate the effects of tumour-secreted factors on the hyper-permeability associated with the tumour microenvironment, we explored the composition and function of the GB secretome on brain endothelial cells. We found that abundant secretion of IL-8 by GB cells causes VE-cadherin-mediated endothelial junction disorganization. Moreover, IL-8 promotes both brain endothelial cell permeability and tubulogenesis. In conclusion, we established a new role for [beta]-arrestin1 in the control of VE-cadherin-based junctions in human endothelial cells. Likewise, we demonstrated that tumour cell-released IL-8 chemokine provokes VE-cadherin-dependent junction remodelling and thereby increases the permeability of human brain endothelial cells. Our results reinforce the central role of VE-cadherin in the modulation of the vascular barrier function in physiological and pathological conditions.
Book Synopsis Endothelial Dynamics in Health and Disease by : Jaap Diederik Van Buul
Download or read book Endothelial Dynamics in Health and Disease written by Jaap Diederik Van Buul and published by Frontiers Media SA. This book was released on 2021-01-06 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Regulation of Endothelial Barrier Function by : Sarah Y. Yuan
Download or read book Regulation of Endothelial Barrier Function written by Sarah Y. Yuan and published by Biota Publishing. This book was released on 2011-02-01 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: The vascular endothelium lining the inner surface of blood vessels serves as the first interface for circulating blood components to interact with cells of the vascular wall and surrounding extravascular tissues. In addition to regulating blood delivery and perfusion, a major function of vascular endothelia, especially those in exchange microvessels (capillaries and postcapillary venules), is to provide a semipermeable barrier that controls blood–tissue exchange of fluids, nutrients, and metabolic wastes while preventing pathogens or harmful materials in the circulation from entering into tissues. During host defense against infection or tissue injury, endothelial barrier dysfunction occurs as a consequence as well as cause of inflammatory responses. Plasma leakage disturbs fluid homeostasis and impairs tissue oxygenation, a pathophysiological process contributing to multiple organ dysfunction associated with trauma, infection, metabolic disorder, and other forms of disease. In this book, we provide an updated overview of microvascular endothelial barrier structure and function in health and disease. The discussion is initiated with the basic physiological principles of fluid and solute transport across microvascular endothelium, followed by detailed information on endothelial cell–cell and cell–matrix interactions and the experimental techniques that are employed to measure endothelial permeability. Further discussion focuses on the signaling and molecular mechanisms of endothelial barrier responses to various stimulations or drugs, as well as their relevance to several common clinical conditions. Taken together, this book provides a comprehensive analysis of microvascular endothelial cell and molecular pathophysiology. Such information will assist scientists and clinicians in advanced basic and clinical research for improved health care.
Download or read book "In Sickness and in Health" written by and published by . This book was released on 2016 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Endothelial cells form a single layer of cells on the luminal side of all blood vessels. This layer of cells represents a dynamic physical barrier that restricts and regulates the movement of blood cells, solutes and fluids from the blood to the tissues surrounding blood vessels. Within this thesis we address several important aspects of endothelial junction regulation. We then investigated plasminogen activator inhibitor 1 (PAI-1) as a novel regulator of endothelial junction stability. We show that PAI-1, which is expressed by endothelial cells, protects endothelial junctions in the steady state by ensuring efficient vascular endothelial cadherin (VE-cadherin) trafficking to and from the plasma membrane. Moreover, we demonstrated the importance of the phosphorylation of two adjacent serine residues in the RhoGEF Trio for the reformation of endothelial cell-cell junctions after stimulation with thrombin. Further to previous work from our lab we demonstrated here that serine phosphorylation primes Trio for rapid reformation of endothelial junctions. Finally, we returned to endothelial junction regulation in inflammation by demonstrating a role for the ubiquitin ligase cellular inhibitor of apoptosis 1 (c-IAP-1), the ubiquitin-editing enzyme tumor necrosis factor [alpha] (TNF[alpha]) -induced protein 3 (TNFAIP3) and the deubiquitinase ubiquitin-specific peptidase 8 (USP8) in limiting the extent of TNF[alpha]-induced changes to endothelial morphology, permeability and adhesion receptor expression. Overall we have shown that the serine protease inhibitor PAI-1, serine phosphorylation of the RhoGEF Trio and ubiquitination of proteins involved in TNF[alpha]-mediated signaling are important regulators of endothelial junction permeability."--Samenvatting auteur.
Book Synopsis Measuring Oxidants and Oxidative Stress in Biological Systems by : Lawrence J. Berliner
Download or read book Measuring Oxidants and Oxidative Stress in Biological Systems written by Lawrence J. Berliner and published by Springer Nature. This book was released on 2020-08-08 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the methods of analysis and determination of oxidants and oxidative stress in biological systems. Reviews and protocols on select methods of analysis of ROS, RNS, oxygen, redox status, and oxidative stress in biological systems are described in detail. It is an essential resource for both novices and experts in the field of oxidant and oxidative stress biology.
Book Synopsis Cardiovascular Pharmacology: Endothelial Control by :
Download or read book Cardiovascular Pharmacology: Endothelial Control written by and published by Academic Press. This book was released on 2010-12-16 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cardiovascular disease remains a major cause of death and disability in developed countries and, increasingly so, in the developing world. Presented in this volume of Advances in Pharmacology are some of the most promising possibilities for treating large numbers of individuals afflicted with these conditions. Contains up-to-date reviews of the most important emerging cardiovascular therapies written by world leaders in the field
Book Synopsis Capillary Fluid Exchange by : Joshua Scallan
Download or read book Capillary Fluid Exchange written by Joshua Scallan and published by Morgan & Claypool Publishers. This book was released on 2010 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: The partition of fluid between the vascular and interstitial compartments is regulated by forces (hydrostatic and oncotic) operating across the microvascular walls and the surface areas of permeable structures comprising the endothelial barrier to fluid and solute exchange, as well as within the extracellular matrix and lymphatics. In addition to its role in the regulation of vascular volume, transcapillary fluid filtration also allows for continuous turnover of water bathing tissue cells, providing the medium for diffusional flux of oxygen and nutrients required for cellular metabolism and removal of metabolic byproducts. Transendothelial volume flow has also been shown to influence vascular smooth muscle tone in arterioles, hydraulic conductivity in capillaries, and neutrophil transmigration across postcapillary venules, while the flow of this filtrate through the interstitial spaces functions to modify the activities of parenchymal, resident tissue, and metastasizing tumor cells. Likewise, the flow of lymph, which is driven by capillary filtration, is important for the transport of immune and tumor cells, antigen delivery to lymph nodes, and for return of filtered fluid and extravasated proteins to the blood. Given this background, the aims of this treatise are to summarize our current understanding of the factors involved in the regulation of transcapillary fluid movement, how fluid movements across the endothelial barrier and through the interstitium and lymphatic vessels influence cell function and behavior, and the pathophysiology of edema formation. Table of Contents: Fluid Movement Across the Endothelial Barrier / The Interstitium / The Lymphatic Vasculature / Pathophysiology of Edema Formation
Book Synopsis The Development of the Vascular System by : Richard N. Feinberg
Download or read book The Development of the Vascular System written by Richard N. Feinberg and published by S. Karger AG (Switzerland). This book was released on 1991 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Endothelial Cell Culture by : Roy Bicknell
Download or read book Endothelial Cell Culture written by Roy Bicknell and published by Cambridge University Press. This book was released on 1996-09-28 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of the Handbooks in Practical Animal Cell Biology is to provide practical workbooks for those involved in primary cell culture. Each volume addresses a different cell lineage, and contains an introductory section followed by individual chapters on the culture of specific differentiated cell types. The authors of each chapter are leading researchers in their fields and use their first-hand experience to present reliable techniques in a clear and thorough manner. Endothelial Cell Culture contains chapters on endothelial cells derived from 1) lung, 2) bone marrow, 3) brain, 4) mammary glands, 5) skin, 6) adipose tissue, 7) female reproductive system, and 8) synovium.
Book Synopsis VE-Cadherin–Mediated Epigenetic Regulation of Endothelial Gene Expression by :
Download or read book VE-Cadherin–Mediated Epigenetic Regulation of Endothelial Gene Expression written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tight Junctions in Cancer Metastasis by : Tracey A. Martin
Download or read book Tight Junctions in Cancer Metastasis written by Tracey A. Martin and published by Springer Science & Business Media. This book was released on 2013-02-26 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been a dramatic increase in knowledge of tight junctions in the past decade. The molecular structure of tight junctions, cellular functions and the pathophysiological roles of tight junctions are becoming clear. Of the most important functions, the role of the cellular structure in cancer spread and drug delivery are increasingly realised. It is now clear that there are fundamental changes to tight junctions during the process of cancer development. Tight junctions are also critical to the metastatic process of cancer cells. The cellular structure is also crucial in drug therapies, namely, the permeability and bioavailability of the drugs, penetration of barriers such as the blood brain barrier. This current volume aims to summarise the current knowledge of tight junctions, their role in cancer and cancer metastasis and is of interest to scientists and clinicians.
Book Synopsis The Blood Brain Barrier (BBB) by : Gert Fricker
Download or read book The Blood Brain Barrier (BBB) written by Gert Fricker and published by Springer. This book was released on 2014-10-24 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: Medicinal chemistry is both science and art. The science of medicinal chemistry offers mankind one of its best hopes for improving the quality of life. The art of medicinal chemistry continues to challenge its practitioners with the need for both intuition and experience to discover new drugs. Hence sharing the experience of drug research is uniquely beneficial to the field of medicinal chemistry. Drug research requires interdisciplinary team-work at the interface between chemistry, biology and medicine. Therefore, the topic-related series Topics in Medicinal Chemistry covers all relevant aspects of drug research, e.g. pathobiochemistry of diseases, identification and validation of (emerging) drug targets, structural biology, drugability of targets, drug design approaches, chemogenomics, synthetic chemistry including combinatorial methods, bioorganic chemistry, natural compounds, high-throughput screening, pharmacological in vitro and in vivo investigations, drug-receptor interactions on the molecular level, structure-activity relationships, drug absorption, distribution, metabolism, elimination, toxicology and pharmacogenomics. In general, special volumes are edited by well known guest editors.
Book Synopsis Endothelial Dysfunction by : Helena Lenasi
Download or read book Endothelial Dysfunction written by Helena Lenasi and published by BoD – Books on Demand. This book was released on 2018-10-24 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: The endothelium enables communication between blood and tissues and is actively involved in cardiovascular homeostasis. Endothelial dysfunction has been recognized as an early step in the development of cardiovascular diseases: respectively, endothelium represents a potential therapeutic niche with multiple targets. The purpose of the book is to point out some recent findings of endothelial physiology and pathophysiology emphasizing various aspects of endothelial dysfunction connected to the body's internal and external environment. While basic features of the endothelium are presented in an introductory chapter, the authors of the following 17 chapters have provided extensive insight into some selected topics of endothelial (dys)function. The book would hopefully be useful for anyone interested in recapitulating endothelial (patho)physiology and expanding knowledge of molecular mechanisms involved in endothelial dysfunction, relevant also for further clinical investigations.
Book Synopsis The Cadherin Superfamily by : Shintaro T. Suzuki
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.
Book Synopsis The Molecular Biology of Cadherins by :
Download or read book The Molecular Biology of Cadherins written by and published by Academic Press. This book was released on 2013-04-08 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume of Progress in Molecular Biology and Translational Science focuses on the most recent research surrounding Cadherins from top experts in the field.
Book Synopsis Endothelial Permeability by : Phuoc Thanh Vuong
Download or read book Endothelial Permeability written by Phuoc Thanh Vuong and published by . This book was released on 1998 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamic Control of VE-cadherin-based Junctions by : Elisabeth Timmerman
Download or read book Dynamic Control of VE-cadherin-based Junctions written by Elisabeth Timmerman and published by . This book was released on 2013 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
