Book contents
- Frontmatter
- Contents
- Editor, Associate Editors, Artistic Consultant, and Contributors
- Preface
- PART I CONTEXT
- PART II ENDOTHELIAL CELL AS INPUT-OUTPUT DEVICE
- 27 Introductory Essay: Endothelial Cell Input
- 28 Hemodynamics in the Determination of Endothelial Phenotype and Flow Mechanotransduction
- 29 Hypoxia-Inducible Factor 1
- 30 Integrative Physiology of Endothelial Cells: Impact of Regional Metabolism on the Composition of Blood-Bathing Endothelial Cells
- 31 Tumor Necrosis Factor
- 32 Vascular Permeability Factor/Vascular Endothelial Growth Factor and Its Receptors: Evolving Paradigms in Vascular Biology and Cell Signaling
- 33 Function of Hepatocyte Growth Factor and Its Receptor c-Met in Endothelial Cells
- 34 Fibroblast Growth Factors
- 35 Transforming Growth Factor-β and the Endothelium
- 36 Thrombospondins
- 37 Neuropilins: Receptors Central to Angiogenesis and Neuronal Guidance
- 38 Vascular Functions of Eph Receptors and Ephrin Ligands
- 39 Endothelial Input from the Tie1 and Tie2 Signaling Pathway
- 40 Slits and Netrins in Vascular Patterning: Taking Cues from the Nervous System
- 41 Notch Genes: Orchestrating Endothelial Differentiation
- 42 Reactive Oxygen Species
- 43 Extracellular Nucleotides and Nucleosides as Autocrine and Paracrine Regulators within the Vasculature
- 44 Syndecans
- 45 Sphingolipids and the Endothelium
- 46 Endothelium: A Critical Detector of Lipopolysaccharide
- 47 Receptor for Advanced Glycation End-products and the Endothelium: A Path to the Complications of Diabetes and Inflammation
- 48 Complement
- 49 Kallikrein-Kinin System
- 50 Opioid Receptors in Endothelium
- 51 Snake Toxins and Endothelium
- 52 Inflammatory Cues Controlling Lymphocyte–Endothelial Interactions in Fever-Range Thermal Stress
- 53 Hyperbaric Oxygen and Endothelial Responses in Wound Healing and Ischemia–Reperfusion Injury
- 54 Barotrauma
- 55 Endothelium and Diving
- 56 Exercise and the Endothelium
- 57 The Endothelium at High Altitude
- 58 Endothelium in Space
- 59 Toxicology and the Endothelium
- 60 Pericyte–Endothelial Interactions
- 61 Vascular Smooth Muscle Cells: The Muscle behind Vascular Biology
- 62 Cross-Talk between the Red Blood Cell and the Endothelium: Nitric Oxide as a Paracrine and Endocrine Regulator of Vascular Tone
- 63 Leukocyte–Endothelial Cell Interactions
- 64 Platelet–Endothelial Interactions
- 65 Cardiomyocyte–Endothelial Cell Interactions
- 66 Interactions between Hepatocytes and Liver Sinusoidal Endothelial Cells
- 67 Stellate Cell–Endothelial Cell Interactions
- 68 Podocyte–Endothelial Interactions
- 69 Introductory Essay: Endothelial Cell Coupling
- 70 Endothelial and Epithelial Cells: General Principles of Selective Vectorial Transport
- 71 Electron Microscopic–Facilitated Understanding of Endothelial Cell Biology: Contributions Established during the 1950s and 1960s
- 72 Weibel-Palade Bodies: Vesicular Trafficking on the Vascular Highways
- 73 Multiple Functions and Clinical Uses of Caveolae in Endothelium
- 74 Endothelial Structures Involved in Vascular Permeability
- 75 Endothelial Luminal Glycocalyx: Protective Barrier between Endothelial Cells and Flowing Blood
- 76 The Endothelial Cytoskeleton
- 77 Endothelial Cell Integrins
- 78 Aquaporin Water Channels and the Endothelium
- 79 Ion Channels in Vascular Endothelium
- 80 Regulation of Angiogenesis and Vascular Remodeling by Endothelial Akt Signaling
- 81 Mitogen-Activated Protein Kinases
- 82 Protein Kinase C
- 83 Rho GTP-Binding Proteins
- 84 Protein Tyrosine Phosphatases
- 85 Role of β-Catenin in Endothelial Cell Function
- 86 Nuclear Factor-κB Signaling in Endothelium
- 87 Peroxisome Proliferator-Activated Receptors and the Endothelium
- 88 GATA Transcription Factors
- 89 Coupling: The Role of Ets Factors
- 90 Early Growth Response-1 Coupling in Vascular Endothelium
- 91 KLF2: A “Molecular Switch” Regulating Endothelial Function
- 92 NFAT Transcription Factors
- 93 Forkhead Signaling in the Endothelium
- 94 Genetics of Coronary Artery Disease and Myocardial Infarction: The MEF2 Signaling Pathway in the Endothelium
- 95 Vezf1: A Transcriptional Regulator of the Endothelium
- 96 Sox Genes: At the Heart of Endothelial Transcription
- 97 Id Proteins and Angiogenesis
- 98 Introductory Essay: Endothelial Cell Output
- 99 Proteomic Mapping of Endothelium and Vascular Targeting in Vivo
- 100 A Phage Display Perspective
- 101 Hemostasis and the Endothelium
- 102 Von Willebrand Factor
- 103 Tissue Factor Pathway Inhibitor
- 104 Tissue Factor Expression by the Endothelium
- 105 Thrombomodulin
- 106 Heparan Sulfate
- 107 Antithrombin
- 108 Protein C
- 109 Vitamin K–Dependent Anticoagulant Protein S
- 110 Nitric Oxide as an Autocrine and Paracrine Regulator of Vessel Function
- 111 Heme Oxygenase and Carbon Monoxide in Endothelial Cell Biology
- 112 Endothelial Eicosanoids
- 113 Regulation of Endothelial Barrier Responses and Permeability
- 114 Molecular Mechanisms of Leukocyte Transendothelial Cell Migration
- 115 Functions of Platelet-Endothelial Cell Adhesion Molecule-1 in the Vascular Endothelium
- 116 P-Selectin
- 117 Intercellular Adhesion Molecule-1 and Vascular Cell Adhesion Molecule-1
- 118 E-Selectin
- 119 Endothelial Cell Apoptosis
- 120 Endothelial Antigen Presentation
- PART III VASCULAR BED/ORGAN STRUCTURE AND FUNCTION IN HEALTH AND DISEASE
- PART IV DIAGNOSIS AND TREATMENT
- PART V CHALLENGES AND OPPORTUNITIES
- Index
- Plate section
46 - Endothelium: A Critical Detector of Lipopolysaccharide
from PART II - ENDOTHELIAL CELL AS INPUT-OUTPUT DEVICE
Published online by Cambridge University Press: 04 May 2010
- Frontmatter
- Contents
- Editor, Associate Editors, Artistic Consultant, and Contributors
- Preface
- PART I CONTEXT
- PART II ENDOTHELIAL CELL AS INPUT-OUTPUT DEVICE
- 27 Introductory Essay: Endothelial Cell Input
- 28 Hemodynamics in the Determination of Endothelial Phenotype and Flow Mechanotransduction
- 29 Hypoxia-Inducible Factor 1
- 30 Integrative Physiology of Endothelial Cells: Impact of Regional Metabolism on the Composition of Blood-Bathing Endothelial Cells
- 31 Tumor Necrosis Factor
- 32 Vascular Permeability Factor/Vascular Endothelial Growth Factor and Its Receptors: Evolving Paradigms in Vascular Biology and Cell Signaling
- 33 Function of Hepatocyte Growth Factor and Its Receptor c-Met in Endothelial Cells
- 34 Fibroblast Growth Factors
- 35 Transforming Growth Factor-β and the Endothelium
- 36 Thrombospondins
- 37 Neuropilins: Receptors Central to Angiogenesis and Neuronal Guidance
- 38 Vascular Functions of Eph Receptors and Ephrin Ligands
- 39 Endothelial Input from the Tie1 and Tie2 Signaling Pathway
- 40 Slits and Netrins in Vascular Patterning: Taking Cues from the Nervous System
- 41 Notch Genes: Orchestrating Endothelial Differentiation
- 42 Reactive Oxygen Species
- 43 Extracellular Nucleotides and Nucleosides as Autocrine and Paracrine Regulators within the Vasculature
- 44 Syndecans
- 45 Sphingolipids and the Endothelium
- 46 Endothelium: A Critical Detector of Lipopolysaccharide
- 47 Receptor for Advanced Glycation End-products and the Endothelium: A Path to the Complications of Diabetes and Inflammation
- 48 Complement
- 49 Kallikrein-Kinin System
- 50 Opioid Receptors in Endothelium
- 51 Snake Toxins and Endothelium
- 52 Inflammatory Cues Controlling Lymphocyte–Endothelial Interactions in Fever-Range Thermal Stress
- 53 Hyperbaric Oxygen and Endothelial Responses in Wound Healing and Ischemia–Reperfusion Injury
- 54 Barotrauma
- 55 Endothelium and Diving
- 56 Exercise and the Endothelium
- 57 The Endothelium at High Altitude
- 58 Endothelium in Space
- 59 Toxicology and the Endothelium
- 60 Pericyte–Endothelial Interactions
- 61 Vascular Smooth Muscle Cells: The Muscle behind Vascular Biology
- 62 Cross-Talk between the Red Blood Cell and the Endothelium: Nitric Oxide as a Paracrine and Endocrine Regulator of Vascular Tone
- 63 Leukocyte–Endothelial Cell Interactions
- 64 Platelet–Endothelial Interactions
- 65 Cardiomyocyte–Endothelial Cell Interactions
- 66 Interactions between Hepatocytes and Liver Sinusoidal Endothelial Cells
- 67 Stellate Cell–Endothelial Cell Interactions
- 68 Podocyte–Endothelial Interactions
- 69 Introductory Essay: Endothelial Cell Coupling
- 70 Endothelial and Epithelial Cells: General Principles of Selective Vectorial Transport
- 71 Electron Microscopic–Facilitated Understanding of Endothelial Cell Biology: Contributions Established during the 1950s and 1960s
- 72 Weibel-Palade Bodies: Vesicular Trafficking on the Vascular Highways
- 73 Multiple Functions and Clinical Uses of Caveolae in Endothelium
- 74 Endothelial Structures Involved in Vascular Permeability
- 75 Endothelial Luminal Glycocalyx: Protective Barrier between Endothelial Cells and Flowing Blood
- 76 The Endothelial Cytoskeleton
- 77 Endothelial Cell Integrins
- 78 Aquaporin Water Channels and the Endothelium
- 79 Ion Channels in Vascular Endothelium
- 80 Regulation of Angiogenesis and Vascular Remodeling by Endothelial Akt Signaling
- 81 Mitogen-Activated Protein Kinases
- 82 Protein Kinase C
- 83 Rho GTP-Binding Proteins
- 84 Protein Tyrosine Phosphatases
- 85 Role of β-Catenin in Endothelial Cell Function
- 86 Nuclear Factor-κB Signaling in Endothelium
- 87 Peroxisome Proliferator-Activated Receptors and the Endothelium
- 88 GATA Transcription Factors
- 89 Coupling: The Role of Ets Factors
- 90 Early Growth Response-1 Coupling in Vascular Endothelium
- 91 KLF2: A “Molecular Switch” Regulating Endothelial Function
- 92 NFAT Transcription Factors
- 93 Forkhead Signaling in the Endothelium
- 94 Genetics of Coronary Artery Disease and Myocardial Infarction: The MEF2 Signaling Pathway in the Endothelium
- 95 Vezf1: A Transcriptional Regulator of the Endothelium
- 96 Sox Genes: At the Heart of Endothelial Transcription
- 97 Id Proteins and Angiogenesis
- 98 Introductory Essay: Endothelial Cell Output
- 99 Proteomic Mapping of Endothelium and Vascular Targeting in Vivo
- 100 A Phage Display Perspective
- 101 Hemostasis and the Endothelium
- 102 Von Willebrand Factor
- 103 Tissue Factor Pathway Inhibitor
- 104 Tissue Factor Expression by the Endothelium
- 105 Thrombomodulin
- 106 Heparan Sulfate
- 107 Antithrombin
- 108 Protein C
- 109 Vitamin K–Dependent Anticoagulant Protein S
- 110 Nitric Oxide as an Autocrine and Paracrine Regulator of Vessel Function
- 111 Heme Oxygenase and Carbon Monoxide in Endothelial Cell Biology
- 112 Endothelial Eicosanoids
- 113 Regulation of Endothelial Barrier Responses and Permeability
- 114 Molecular Mechanisms of Leukocyte Transendothelial Cell Migration
- 115 Functions of Platelet-Endothelial Cell Adhesion Molecule-1 in the Vascular Endothelium
- 116 P-Selectin
- 117 Intercellular Adhesion Molecule-1 and Vascular Cell Adhesion Molecule-1
- 118 E-Selectin
- 119 Endothelial Cell Apoptosis
- 120 Endothelial Antigen Presentation
- PART III VASCULAR BED/ORGAN STRUCTURE AND FUNCTION IN HEALTH AND DISEASE
- PART IV DIAGNOSIS AND TREATMENT
- PART V CHALLENGES AND OPPORTUNITIES
- Index
- Plate section
Summary
Endotoxin is part of the outer membrane of the cell wall of gram-negative bacteria. It also is referred to as lipopolysaccharide (LPS), owing to its historical discovery. During the 1800s, it was understood that bacteria could secrete toxins into their environment, which were broadly known as “exotoxins.” The term endotoxin came about following the discovery that portions of the gram-negative bacteria itself can cause toxicity. Over the next 50 years, studies focused on endotoxin revealed that the actual molecule responsible for the effects of endotoxin was in fact LPS. Endotoxins largely are responsible for clinical manifestations of the infections induced by pathogenic gram-negative bacteria such as E. coli, Salmonella, Shigella, Pseudomonas, Neisseria, Haemophilus, and others. The goal of this chapter is to discuss the receptor, signaling pathway, and effect of LPS on endothelium.
LIPOPOLYSACCHARIDE STRUCTURE
LPS is comprised of a polysaccharide (“sugar”) chain and a lipid moiety, known as lipid A, the portion responsible for toxic effects (Figure 46.1). Lipid A is found in the exterior leaflet of the outer membrane. Lipid A is the most conserved portion of the molecule; however, it can vary according to the nature of fatty acid chains and its degree of phosphorylation. This portion is the biologically active component of LPS, because isolated lipid A or synthetic lipid A (free of contaminants) displays the same bioactivity as intact LPS in vitro and in vivo (1). Indeed, in bovine pulmonary artery endothelial cell (BPAEC) monolayers, lipid A has been shown to be the bioactive portion of LPS responsible for inducing changes in endothelial barrier function, with a dose-dependent increase in EC monolayer permeability comparable to that of native LPS (2).
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- Endothelial Biomedicine , pp. 410 - 418Publisher: Cambridge University PressPrint publication year: 2007