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Kelley and Firestein's Textbook of Rheumatology E-Book

Kelley and Firestein's Textbook of Rheumatology E-Book

Gary S. Firestein | Ralph Budd | Sherine E Gabriel | Iain B. McInnes | James R O'Dell

(2016)

Additional Information

Book Details

Abstract

Consult the definitive resource in rheumatology for an in-depth understanding of scientific advances as they apply to clinical practice. Masterfully edited by Drs. Gary S. Firestein, Ralph C. Budd, Sherine E. Gabriel, Iain B. McInnes, and James R. O'Dell, and authored by internationally renowned scientists and clinicians in the field, Kelley and Firestein’s Textbook of Rheumatology, 10th Edition, delivers the knowledge you need for accurate diagnoses and effective patient care. From basic science, immunology, anatomy, and physiology to diagnostic tests, procedures, and specific disease processes, this state-of-the-art reference provides a global, authoritative perspective on the manifestations, diagnosis and treatment of rheumatic diseases.

  • An ideal balance of the basic science you need to know and how to apply that information to clinical practice.
  • An integrated chapter format allows you to review basic science advances and their clinical implications in one place and get dependable, evidence-based guidance for the full range of rheumatologic diseases and syndromes.
  • Consult this title on your favorite e-reader, conduct rapid searches, and adjust font sizes for optimal readability.
  • Metabolic Regulation of Immunity, Principles of Signaling, Research Methods in the Rheumatic Diseases, Novel Intracellular Targeting Agents, and IgG4-Related Diseases.
  • New and expanded chapter topics on small molecule treatment, biologics, biomarkers, epigenetics, biosimilars, and cell-based therapies.
  • More schematic diagrams clearly summarize information and facilitate understanding.

Table of Contents

Section Title Page Action Price
9780323414944v1_WEB.pdf 1
Front Cover 1
Inside Front Cover 2
Kelley and Firestein's Textbook of Rheumatology, 2-Volume Set 3
Copyright Page 6
Dedication 7
Acknowledgement 9
Contributors 11
Preface 27
Table Of Contents 29
I Structure and Function of Bone, Joints, and Connective Tissue 33
1 Biology of the Normal Joint 33
Key Points 33
Classification of Joints 33
Developmental Biology of the Diarthrodial Joint 33
Interzone Formation and Joint Cavitation 34
Cartilage Formation and Endochondral Ossification 35
Condensation and Limb-Bud Formation 36
Molecular Signals in Cartilage Morphogenesis and Growth Plate Development 37
Endochondral Ossification 38
Development of the Joint Capsule and Synovium 39
Development of Nonarticular Joints 39
Development of Articular Cartilage 39
Organization and Physiology of the Mature Joint 40
Synovium 40
Synovial Lining 41
Synovial Vasculature 41
Regulation of Synovial Blood Flow 42
Joint Innervation 42
Tendons 43
Ligaments 43
Bursae 44
Menisci 44
Mature Articular Cartilage 44
Subchondral Bone 45
Synovial Fluid and Nutrition of Joint Structures 46
Generation and Clearance of Synovial Fluid 46
Synovial Fluid as an Indicator of Joint Function 47
Lubrication and Nutrition of the Articular Cartilage 48
Lubrication 48
Nutrition 48
Conclusion 49
Selected References 49
References 52
2 Synovium 56
Key Points 56
Structure 56
Synovial Lining Cells 56
Ultrastructure of Synovial Lining Cells 56
Immunohistochemical Profile of Synovial Cells 57
Synovial Macrophages. 57
Synovial Intimal Fibroblasts. 57
Turnover of Synovial Lining Cells 59
Origin of Synovial Lining Cells 59
Subintimal Layer 60
Subintimal Vasculature 61
Subintimal Lymphatics 61
Subintimal Nerve Supply 61
Function 61
Joint Movement 62
Deformability 63
Porosity 63
Nonadherence 63
Lubrication 63
Hyaluronic Acid. 64
Lubricin. 64
Synovial Fluid Formation 64
Chondrocyte Nutrition 66
Conclusion 66
References 67
3 Cartilage and Chondrocytes 70
Key Points 70
Cartilage Structure 70
Structure-Function Relationships of Cartilage Matrix Components 72
Cartilage Collagens 72
Cartilage Proteoglycans 74
Other Extra-cellular Matrix and Cell Surface Proteins 75
Structure, Classification, and Normal Function of Chondrocytes 75
Structure 75
Classification: Cell Origin and Differentiation 75
Normal Function of the Adult Articular Chondrocyte 77
Culture Models for Studying Chondrocyte Metabolism 78
Articular Chondrocytes 78
Cartilage Explant (Organ) Cultures 78
Monolayer Cultures 78
Three-Dimensional Culture Systems 79
Interactions of Chondrocytes with the Extra-cellular Matrix 79
Integrins 79
Other Cell Surface Receptors in Chondrocytes 81
Angiogenic and Antiangiogenic Factors 81
Roles of Growth and Differentiation (Anabolic) Factors in Normal Cartilage Metabolism 81
Insulin-like Growth Factor 81
Fibroblast Growth Factor 82
TGF-β/BMP Superfamily 82
Transforming Growth Factor-β 83
Bone Morphogenetic Proteins 83
Receptors, Signaling Molecules, and Antagonists that Mediate Chondrocyte Responses to Growth and Differentiation Factors 83
Role of the Chondrocyte in Cartilage Disease 84
Cartilage Matrix–Degrading Proteinases 85
Balance of Cytokines in Cartilage Destruction 87
Interleukin-1 and Tumor Necrosis Factor 87
Cytokine Networks 88
Other Mediators 88
Cytokine Signaling Pathways Involved in Cartilage Metabolism 89
Role of the Chondrocyte in Cartilage Repair 91
Aging of Articular Cartilage 91
Aging Chondrocyte 91
Markers of Cartilage Matrix Degradation and Turnover 92
Repair of Articular Cartilage 92
Conclusion 93
Selected References 93
References 96
4 Biology, Physiology, and Morphology of Bone 99
Key Points 99
Structure and Composition of Bone 99
Bone Matrix 99
Bone Cells: Osteoblasts 100
Bone Cells: Osteocytes 100
Bone Cells: Osteoclasts 101
Bone Remodeling Process 102
Direct Interactions between Osteoblasts and Osteoclasts 103
Bone Remodeling by the Immune System 103
Systemic Control of Bone Remodeling by Neuroendocrine Mechanisms 104
Conclusion 104
References 104
5 Muscle 105
Key Points 105
Structure 105
Muscle Tissue 105
Fiber Types 106
Events during Muscle Contraction 107
Neural Control 107
Neuromuscular Transmission 108
Excitation-Contraction Coupling 108
Contractile Apparatus 108
Force Generation and Shortening 110
Relaxation 111
Transmission of Force to the Exterior 111
Cell-Matrix Adhesions 111
Myotendinous Junction 112
Energetics 113
Buffering of Adenosine Triphosphate Concentration 113
Glycolysis 113
Oxidative Phosphorylation 113
Fatigue and Recovery 113
Plasticity 114
Adaptation to Muscle Use/Disuse 114
Hormonal Control 114
Aging 114
Conclusion 115
References 115
6 Biomechanics 117
Key Points 117
Kinematics 117
Kinetics 120
Joint Biomechanics 123
Joint Constraint and Stability 124
Mechanical Loading on Tendon 127
References 128
7 Regenerative Medicine and Tissue Engineering 129
Key Points 129
Intrinsic Repair Mechanisms 129
Genetic Basis of Tissue Repair 129
Signaling Pathways 131
Transforming Growth Factor-β/Bone Morphogenetic Protein Signaling 131
Fibroblast Growth Factor Signaling 131
Wnt Signaling 131
Growth Hormone/Insulin-like Growth Factor Axis 132
Stem Cell Niches 132
Targeting Homeostasis of the Joint 134
Cellular and Molecular Mechanisms of the Homeostatic Response 134
Immediate Molecular Response. 134
Activation and Attraction of Mesenchymal Progenitors. 134
Patterning and Differentiation. 135
Extrinsic Repair: Current Therapeutic Interventions 135
Joint Surface Defects 135
Autologous Chondrocyte Transplantation 135
Stem Cell–Based Approaches 137
Osteochondral Repair 137
Bone Regeneration 138
Regeneration of Other Joint-Related Structures 139
Menisci 139
Tendons 140
Regenerative Medicine and Tissue Engineering in Arthritis 140
Conclusion 141
Selected References 141
References 145
8 Proteinases and Matrix Degradation 149
Key Points 149
Extra-cellular Matrix–Degrading Proteinases 149
Aspartic Proteinases 149
Cysteine Proteinases 150
Serine Proteinases 150
Neutrophil Elastase and Cathepsin G 150
Mast Cell Chymase and Tryptase 151
Plasmin and Plasminogen Activators 151
Kallikreins 151
Metalloproteinases 151
Matrix Metalloproteinases 151
Secreted-Type Matrix Metalloproteinases 152
Collagenases (MMP-1, MMP-8, and MMP-13). 152
Gelatinases (MMP-2 and MMP-9). 153
Stromelysins (MMP-3 and MMP-10). 153
Matrilysins (MMP-7 and MMP-26). 154
Furin-Activated Matrix Metalloproteinases (MMP-11 and MMP-28). 155
Other Secreted-Type Matrix Metalloproteinases (MMP- 12, MMP-19, MMP-20, MMP-21, and MMP-27). 155
Membrane-Anchored Matrix Metalloproteinases 156
ADAM and ADAMTS Families 156
Endogenous Proteinase Inhibitors 156
α2 Macroglobulin 156
Inhibitors of Serine Proteinases 156
Inhibitors of Cysteine Proteinases 157
Tissue Inhibitors of Metalloproteinases 158
Regulation of Proteinase Activity 158
Gene Expression of Proteinases and Inhibitors 158
Matrix Metalloproteinases and Tissue Inhibitors of Metalloproteinases 158
Serine Proteinases and Their Inhibitors 159
Lysosomal Cysteine and Aspartic Proteinases 160
Activation Mechanisms of the Zymogens of Matrix Metalloproteinases 160
Extra-cellular Activation 160
Intra-cellular Activation 160
Pericellular Activation 161
Pericellular Docking and Recycling of Matrix Metalloproteinases 162
Joint Destruction and Proteinases 162
Degradation of Extra-cellular Matrix in Articular Cartilage 162
Cartilage Destruction by Proteinases in Rheumatoid Arthritis 163
Bone Resorption in Rheumatoid Arthritis 164
Cartilage Destruction by Proteinases in Osteoarthritis 165
References 165
II Cells Involved in Autoimmune Diseases and Inflammation 169
9 Dendritic Cells 169
Key Points 169
Dendritic Cell Subsets 169
Conventional Dendritic Cells 170
Tissue Resident cDCs 171
Langerhans Cells. 171
Dermal Dendritic Cells. 171
CD14+ Dendritic Cells. 171
CD1a+ Dermal DCs. 172
Circulating Dendritic Cells 172
CD1c+/BDCA-1+ Dendritic Cells. 172
CD141++/BDCA-3+ Dendritic Cells. 172
Inflammatory Monocyte-Derived Dendritic Cells 172
Plasmacytoid DCs 172
Lymphoid Tissue–Associated Dendritic Cells 173
Dendritic Cell Development 173
Dendritic Cell Maturation 173
Phagocytosis and Autophagy 174
Homeostatic Maturation 174
Pattern-Recognition Receptors and Dendritic Cell Maturation 174
Dendritic Cell Maturation and Toll-like Receptors. 174
C-Type Lectin Receptors. 175
Nod-like and Retinoic Acid-Inducible Gene I–like Receptors. 176
Fc Receptors. 176
Apoptotic Cell Recognition Receptors. 176
Antigen Presentation 177
Class I Major Histocompatibility Complex Antigen Presentation 177
Class I Cross-Presentation. 177
Class II Major Histocompatibility Complex Antigen Presentation 178
Class II Cross-Presentation. 178
Lipid Presentation 178
T Cell Activation 179
B Cell Activation 179
Natural Killer Cell Activation 180
Dendritic Cells and Tolerance 180
Central Tolerance 180
Peripheral Tolerance 180
Autoimmunity 181
Dendritic Cells in Psoriasis 181
Dendritic Cells in Systemic Lupus Erythematosus 182
Dendritic Cells in Rheumatoid Arthritis 183
Dendritic Cells in Sjögren’s Syndrome 184
Conclusions and Future Directions 184
Inflammation Resolution 184
Immune Response Activation and Co-stimulation 185
Vaccines and Cellular Immunotherapy 185
Selected References 185
References 188
10 Mononuclear Phagocytes 194
Key Points 194
Overview 194
Life History and Heterogeneity (Macrophages, Dendritic Cells, and Osteoclasts) 196
Mobilization of Mononuclear Phagocytes 199
Recognition 201
Toll-Like Receptors 201
Non–Toll-Like Receptors 202
Complement Receptors 202
Fc Receptors 204
Cytosolic Receptors 204
Damage/Danger-Associated Molecular Patterns 205
Responses and Modulation 207
Phagocytosis and Endocytosis: Antigen Processing 207
Signaling 208
Efferent Pathways: Gene Expression and Secretion 209
Macrophage Plasticity 213
Relevance to Selected Rheumatic Diseases 214
Issues for Further Investigation 215
Selected References 215
References 218
11 Neutrophils 221
Key Points 221
Neutrophil Development, Morphology, and Content 221
Neutrophil Myelopoiesis and Clearance 221
Neutrophil Morphology and Contents 222
Primary Granules 222
Secondary Granules 223
Gelatinase Granules and Secretory Vesicles 224
Neutrophil Activation and Signal Transduction 224
Stimuli and Receptors 224
Guanosine Triphosphate–Binding Proteins 225
Second Messengers 225
Kinases and Kinase Cascades 226
Neutrophil Function 226
Adhesion 226
Selectins and Sialylated Glycoproteins 226
Integrins and Intercellular Adhesion Molecules 227
Diapedesis and Chemotaxis 227
Diapedesis 227
Chemotaxis 227
Phagocytosis and Degranulation 228
Phagocytosis 228
Degranulation 228
Respiratory Burst 229
Nonphagocytic Mechanisms of Neutrophil Action 229
Neutrophil Extra-cellular Traps 229
Microparticles 230
Neutrophil Production of Pro-inflammatory Mediators 231
Arachidonic Acid Metabolites 231
Cytokine Production 231
Role of Neutrophils in Thrombosis 231
Resolution of Neutrophil Infiltration 231
Resolvins 231
Lipoxins 232
Other Inflammation-Resolving Molecules 232
Role of Apoptotic Neutrophils in Resolving Inflammation 233
Heritable Disorders of Neutrophil Function 233
Diseases of Diminished Neutrophil Number 233
Leukocyte Adhesion Deficiencies 233
Granule Defects 233
Oxidase Deficiencies—Chronic Granulomatous Disease 234
Defects of TLR Signaling 235
Neutrophil Relevance to Rheumatic Disease 235
Neutrophil-Mediated Tissue Destruction 235
Neutrophil Fc Receptor Polymorphisms 235
Gout 235
Rheumatoid Arthritis 235
Systemic Lupus Erythematosus 236
Vasculitis 236
Neutrophilic Dermatoses and Familial Mediterranean Fever 236
Effects of Anti-rheumatic Agents on Neutrophil Functions 237
Glucocorticoids 237
Disease-Modifying Anti-rheumatic Drugs 237
Colchicine 237
Biologic Agents 237
Conclusion 238
Selected References 238
References 241
12 T Lymphocytes 244
Key Points 244
T Cell Development 244
Abnormalities of Human T Cell Development 248
Peripheral Migration and Homeostatic Proliferation of T Cells 249
Activation of T Cells 249
TCR and Tyrosine Kinases 249
Adaptor Proteins 250
Downstream Transcription Factors 250
Co-Stimulation 251
The Immunologic Synapse 251
Tolerance and Control of Autoreactive T Cells 252
T Cell Subsets 253
CD4+ Helper and CD8+ Cytolytic T Cells 253
T Cells in the Innate Immune Response 254
γδ T Cells 255
Natural Killer T Cells 255
Naïve Versus Memory T Cells 255
T Helper Subsets 256
Molecular Mimicry 257
Death of T cells 257
T Cells at Sites of Inflammation 258
References 258
13 B Cells 262
Key Points 262
Immunoglobulins: Structure and Function 262
Immunoglobulin Heavy Chain Constant Region 263
Immunoglobulin M 263
Immunoglobulin G 264
Immunoglobulin A 264
Immunoglobulin E 265
Immunoglobulin D 265
Light Chains 265
Immunoglobulin Variable Region 265
Generation of Immunoglobulin Diversity 265
B Cell Development 266
Niches for Human B Lymphopoiesis 266
B Cell Ontogeny 266
Pro-B Cells 267
Pre-B Cells 267
Immature B Cells 268
Peripheral Naïve B Cell Subsets 268
Transitional B Cells 268
BAFF Family of Cytokines 268
Mature B Cells 268
Marginal Zone B Cells 269
B1 Cells 269
Sites of B Cell Homing and Activation 270
Circulation and Homing 270
Mucosa-Associated Compartments 270
B Cell Activation and Differentiation 270
B Cell Receptor Signaling 271
Surface Co-Receptors 271
FcγRllB 272
CD5 272
CD72 272
PIR 273
PD-1 273
Phosphatases 273
Signal Transduction in Immature versus Mature B Cells 273
B Cell Activation 273
B1 Cell Activation 273
Marginal Zone B Cell Activation 273
Follicular B Cell Activation 274
Germinal Centers 275
Ectopic Lymphoid Structures 276
B Cell Differentiation 276
Memory B Cells 276
Plasma Cells 277
Trafficking of Postimmune Cells 278
Nonconventional B Cell Activation 278
Mucosal T–Independent Class Switch Recombination 278
Repertoire Selection 278
Tolerance 278
Receptor Editing 279
Deletion 279
Anergy 279
B Cells as Immune Regulators 279
Regulation by Small Molecules 279
Vitamin D 279
Estrogens 280
Leptin 280
B Cell–Mediated Autoimmunity 280
Origin of Autoreactive B Cells 280
Autoreactivity in the Preimmune B Cell Repertoire 280
Autoreactivity in the Postimmune B Cell Repertoire 280
Molecular Triggers of Autoimmunity 280
Molecular Mimicry 280
Supraoptimal B Cell Co-Stimulation 281
B Cell Signaling Thresholds 282
Conclusion 282
Selected References 283
References 286
14 Fibroblasts and Fibroblast-like Synoviocytes 289
Key Points 289
What Is a Fibroblast? 289
Fibroblast Identity and Microenvironments 289
Embryologic Origins 290
Origins of Fibroblasts in Tissue 290
Fibroblasts versus Mesenchymal Progenitor Cells 292
Physiologic Characteristics and Functions of Fibroblasts 292
Production of ECM Components 292
Attachment to and Interaction with Extra-cellular Matrix 293
Integrins 293
Syndecans 293
Immunoglobulin Superfamily Receptors 293
Cadherins 293
Adhesion Molecule-Mediated Signaling 293
Degradation of Extra-cellular Matrix by Fibroblasts 294
Fibroblasts as Innate Immune Sentinels 295
Role of Specialized Fibroblast Subsets within Tissue Microenvironments 295
Fibroblast-like Synoviocytes in the Normal Synovium 295
Fibroblasts in Rheumatic Diseases 297
Role of Fibroblasts in Persistent Inflammation 297
Fibroblast-Like Synoviocytes in Rheumatoid Arthritis 297
Persistent Activated Fibroblast Phenotype in the Rheumatoid Arthritis Synovium 297
Interactions of Fibroblasts with Leukocytes 298
Recruitment of Inflammatory Infiltrates into the Joint 298
Fibroblast Support for Leukocyte Survival 298
Fibroblast-Mediated Retention of Leukocytes in Tissue 299
Constitutive Chemokines and Lymphoid Neogenesis 301
Role of Fibroblast Subsets in Disease 301
Epigenetic Regulation of Fibroblast Gene Expression in Rheumatic Disease 302
MicroRNAs and Fibroblast-like Synoviocytes 303
Lessons Learned from Cancer 303
Conclusion 304
Selected References 304
References 308
15 Mast Cells 312
Key Points 312
Basic Biology of Mast Cells 312
Development and Tissue Distribution 312
Mast Cell Heterogeneity: Common Progenitor, Multiple Subsets, and Phenotypic Plasticity 313
Stem Cell Factor 314
T Lymphocytes and Other Cells 314
Different Functions for MCT and MCTC Mast Cells 314
Mast Cell Activation 315
Immunoglobulin E 315
Immunoglobulin G and Immune Complexes 315
Soluble Mediators and Cell-Cell Contact 315
Danger and Injury 315
Inhibitory Signals for Mast Cells 315
Mast Cell Mediators 316
Granule Contents: Proteases, Amines, Proteoglycans, and Cytokines 316
Tryptase. 316
Chymase. 316
β-Hexosaminidase. 316
Vasoactive Amines. 316
Heparin and Chondroitin Sulfate E. 316
Pre-Formed Cytokines and Chemokines. 317
Newly Synthesized Mediators: Lipid Mediators, Cytokines, Chemokines, and Growth Factors 317
Lipid Mediators. 317
Cytokines, Chemokines, and Growth Factors. 317
Role of Mast Cells in Health and Disease 317
Mast Cells in Allergic Disease: Anaphylaxis, Allergic Disease, and Asthma 317
Mast Cells in Nonallergic Inflammation 318
Pathogen Defense: Mast Cells as Sentinels of Innate Immunity 318
Mast Cells and the Adaptive Immune Response 318
Neurogenic Inflammation 319
Autoimmune Disease 319
Mast Cells as Anti-Inflammatory Cells 319
Mast Cells and Connective Tissue 319
Wound Healing and Tissue Fibrosis 319
Bone 320
Angiogenesis 320
Mast Cells in Arthritis 320
Mast Cells in Acute Arthritis: Insights from Animal Models 321
Mast Cells in Chronic Arthritis 321
Therapeutic Potential of Mast Cell Antagonism in Rheumatic Disease 322
Mast Cell Protease Inhibition 322
SCF/c-Kit Antagonism 322
Signaling Pathways 322
Conclusion 323
Selected References 323
References 326
16 Platelets 330
Key Points 330
Platelet Structure 330
Platelet Production 331
Platelets and Hemostasis 331
Signaling Pathways in Platelet Activation 333
The Platelet as an Inflammatory Cell 334
Platelets and Rheumatic Diseases 334
Rheumatoid Arthritis 334
Systemic Lupus Erythematosus 335
Other Rheumatic Diseases 337
Conclusion 337
Selected References 337
References 340
III Effector Mechanisms in Autoimmunity and Inflammation 343
17 Innate Immunity 343
Key Points 343
Evolutionary Origins of Innate Immunity 343
Pathogen Recognition by the Innate Immune System 345
Pamps and Damps: Patterns for Innate Immune Recognition 345
Pathogen-Associated Molecular Patterns 345
Pattern Recognition Receptors 345
Pattern Recognition Receptors of the Lectin Family 346
Pattern Recognition Receptors of the Scavenger Receptor Family 347
Pattern Recognition Receptors with Leucine-Rich Repeat Domains 348
Toll-Like Receptors. 348
Toll-Like Receptor 4 and the Response to Lipopolysaccharide. 349
Other Pathogen-Associated Molecular Patterns Recognized by Toll-Like Receptors. 349
CARD and Pyrin Domain Proteins. 349
Effector Mechanisms of Innate Immune Responses 350
Cell Types Mediating Innate Immunity 350
Innate-like Lymphocytes 350
Anti-microbial Peptides 351
Influence of Innate Mechanisms on Adaptive Immunity 351
Disease Associations Involving Innate Immunity 353
Future Directions 354
Connection to the Clinic 354
References 354
18 Adaptive Immunity and Organization of Lymphoid Tissues 357
Key Points 357
Lymphocyte Migration Paradigms for Homing, Interstitial Navigation, and Egress 357
Multistep Paradigm for Extravasation 358
Tissue Organization and Interstitial Migration 359
Immunologic Synapses Maintain Antigen-Specific Interactions with Dendritic Cells 360
Egress from Lymph Nodes and the Thymus: Sphingosine 1 Phosphate 360
Primary Lymphoid Tissues: Sites Where T and B Cells are Generated and Self-Tolerance Mechanisms are Initiated 360
B Cell Development in the Bone Marrow 360
T Cell Development in the Thymus 361
Secondary Lymphoid Tissues: Sites Where Antigen Finds Rare Specific T and B Cells 361
Antigens from Blood Are Detected Most Efficiently in the Spleen and Liver (Portal System) 362
Antigens from Mucosal Surfaces Are Detected Most Efficiently in Peyer’s Patches and Mesenteric Lymph Nodes 363
Antigens from Other Tissues and Solid Organs Are Detected in Peripheral Lymph Nodes 363
Peripheral Tolerance Induction under Steady-State Conditions 364
Regulatory T Cells Reduce Autoreactivity by Inhibiting Immunologic Synapse Formation 364
Changes in the Lymph Node during Infection/Vaccination 365
Tissue Environment of Immature Dendritic Cells Determines T Cell Imprinting 365
Germinal Center Reactions: Sites of Antibody Affinity Maturation and Class Switch Recombination 366
Tertiary Lymphoid Tissues are Generated at Sites of Chronic Inflammation 366
Five Major Types of Effector T Cells 367
Conclusion 367
References 367
19 Autoimmunity 370
Key Points 370
Definition and Classification of Pathogenic Autoimmunity 370
Animal Models of Autoimmunity 371
Tolerance Mechanisms 374
Clone-Specific Self/Nonself Recognition 374
The Innate System and Tolerance 375
T Cell Tolerance 375
B Cell Tolerance 377
Theories of Autoimmunity 377
Defective Tolerance 378
Autoimmunity Caused by Activation of Intolerant or Partially Tolerant T Cells 379
Immunologic Mechanisms of Tissue Inflammation and Dysfunction 381
Pathophysiology of Autoimmune Rheumatic Diseases 381
Genetics of Autoimmune Diseases 382
Gender and Autoimmunity 383
Microbial and Other Environmental Triggers 383
Conclusion 384
Selected References 384
References 387
20 Metabolic Regulation of Immunity 392
Key Points 392
Overview 392
Metabolic Rewiring in Innate Immunity 392
Macrophage Metabolism 392
Dendritic Cell Metabolism 393
Metabolic Rewiring in Adaptive Immunity 394
T Cell Metabolism 394
T Cell Activation 394
T Cell Differentiation 394
B Cell Metabolism 395
Mitochondria and Immunity 395
Mitochondria and NOD-Like Receptor Signaling 395
Mitochondria and RIG-I-Like Signaling 396
Mitochondria and Toll-Like Receptor Signaling 396
Mitochondria as a Source of Danger Signals 396
Metabolic Interplay in the Immune Microenvironment 396
Metabolic Antagonism in Immunity 397
Metabolic Symbiosis in Immunity 397
Conclusion 397
References 397
21 Genetics of Rheumatic Diseases 401
Key Points 401
Evidence for a Genetic Component to Rheumatic Diseases 401
Study Design 401
Linkage Studies 402
Population-Association Studies and the Calculation of the Odds Ratio, an Estimate of Relative Risk 403
Family-Based Versus Case-Control Approaches 404
Choice of Genetic Marker to Test 404
Candidate Gene Versus Genome-wide Association Studies 404
Genome-wide Association Studies 405
Linkage Disequilibrium 405
Common Versus Rare Variants 407
Interpreting Statistical Association from Case-Control Studies 407
Rheumatoid Arthritis Susceptibility Genes 408
Class I and Class II Human Leukocyte Antigen Isotypes: Functional Correlates 408
Rheumatoid Arthritis: HLA-DRB1 Associations and the “Shared Epitope” 408
The Genome-Wide Association Studies Era of Rheumatoid Arthritis Genetics 409
Juvenile Idiopathic Arthritis 411
Psoriatic Arthritis 412
Ankylosing Spondylitis 412
Systemic Lupus Erythematosus: Identification of the Interferon Pathway 413
Osteoarthritis 413
Clinical Translation 414
Identification of Drug Targets: Lessons from Rheumatoid Arthritis Genetics 414
Prognosis 414
Treatment Response 414
Identification of High-Risk Groups 415
References 415
22 Epigenetics of Rheumatic Diseases 418
Key Points 418
Epigenetic Regulation 418
Epigenetics and the Immune Response 419
Epigenetics in Rheumatic Diseases 420
Systemic Lupus Erythematosus 420
DNA Methylation Regulation and Candidate Gene Studies in Systemic Lupus Erythematosus T Cells 420
Genome-wide DNA Methylation Studies in Systemic Lupus Erythematosus T Cells 421
Genetic–Epigenetic Interaction in Systemic Lupus Erythematosus 422
Histone Modifications in Systemic Lupus Erythematosus 422
MicroRNAs and the Pathogenesis of Systemic Lupus Erythematosus 423
Rheumatoid Arthritis 423
Primary Sjögren’s Syndrome 424
Systemic Sclerosis 424
Behçet’s Disease 425
Osteoarthritis 425
Future Directions 425
References 426
23 Complement System 429
Key Points 429
Functions of the Complement System 429
Terminology Used to Describe Complement and Its Activation Fragments 429
Activation Pathways 430
Regulation of Complement Activation 431
Receptors for Complement Fragments 432
Functions of the Complement System 433
Innate Immune Responses 433
Clearing Immune Complexes and Apoptotic Material 433
Regulating Adaptive Immune Responses 434
Measuring Complement Activation 434
Complement Deficiency 434
Primary Complement Deficiency 434
Secondary Complement Deficiency 435
Targeted Complement Therapeutics 435
Complement in Rheumatic Diseases 436
Systemic Lupus Erythematosus 436
Rheumatoid Arthritis 436
Other Systemic Rheumatic Conditions 437
Conclusion 437
References 437
24 Prostaglandins, Leukotrienes, and Related Compounds 440
Key Points 440
Biosynthesis of Eicosanoids 440
Phospholipases 440
Cyclooxygenase Pathway 442
Regulation of Cyclooxygenase-1 Expression 442
Regulation of Cyclooxygenase-2 Expression 443
Cyclooxygenase-3 444
Prostaglandin Synthases 444
Products of the Cyclooxygenase Pathway 444
Prostaglandins 444
Prostacyclin 445
Thromboxanes 446
Lipoxygenase Pathways 446
Products of the Lipoxygenase Pathways 447
Lipoxins 448
Isoeicosanoids 449
Isoprostanes 449
Endocannabinoids 450
Eicosanoid Receptors 451
Prostaglandin Receptors 451
Leukotriene Receptors 451
Lipoxin Receptors 452
Nuclear Receptors 452
Platelet-Activating Factor 453
Eicosanoids as Regulators of Inflammation and Immune Responses 453
Modulation of Eicosanoid Synthesis by Administration of Precursor Fatty Acids 454
Selected References 455
References 458
25 Cell Recruitment and Angiogenesis 461
Key Points 461
Endothelial Pathophysiology in Inflammation 461
Endothelial Permeability 461
Endothelial Injury and Regeneration 461
Cell Adhesion Molecules 462
Integrins 462
Immunoglobulin Superfamily Members 463
Selectins 463
Cadherins 463
Other Adhesion Receptors 463
Chemokines and Chemokine Receptors 463
Chemokine Superfamilies and Their Receptors 463
CXC Chemokines in Arthritis 464
CC Chemokines in Rheumatoid Arthritis 464
C and CX3C Chemokines in Rheumatoid Arthritis 464
Chemokine Receptors in Arthritis 464
Angiogenesis in Inflammation 465
Angiogenic Process 465
Mediators of Angiogenesis in Rheumatoid Arthritis 465
Vasculogenesis in Arthritis 467
Cellular and Molecular Regulation of Leukocyte Recruitment and Angiogenesis 467
Process of Leukocyte Extravasation in Inflammation 467
Interactions among Chemokines, Adhesion Receptors, and Angiogenic Factors 467
Targeting Cell Adhesion, Chemokines, Angiogenesis, and Vasculogenesis in Inflammatory Rheumatic Disease 467
Inhibition of Cell Adhesion Receptors 467
Chemokine and Chemokine Receptor Targeting 468
Angiogenesis Targeting: Use of Angiostatic Compounds 469
Restoration of Impaired Vasculogenesis 469
Conclusion 469
Selected References 469
References 473
26 Cytokines 478
Key Points 478
Classification of Cytokines 478
Assessing Cytokine Function in Vitro and in Vivo 478
Cytokine Receptors 479
Regulation of Cytokine Expression 480
Effector Function of Cytokines 482
Cytokines in Acute Inflammation 482
Cytokines in Chronic Inflammation 486
T Cell Effector Function in Chronic Inflammation 486
Cell-to-Cell Interactions 486
Agonist/Antagonist Cytokine Activities in Chronic Inflammation 487
Disease-Modifying Anti-rheumatic Drugs 487
Cellular Interactions Across Diverse Tissues 487
B Cells and Cytokine Release in Chronic Inflammation 488
Innate Cell Lineages in Chronic Inflammation 488
Growth Factors in Chronic Inflammation 488
Cytokine Effects Beyond Immune Regulation 488
Conclusion 488
References 489
27 Principles of Signaling 490
Key Points 490
Receptors with Enzymatic Activity 490
Receptors That Recruit Molecules with Enzymatic Activity 491
Cytokine Receptors 491
JAK/STAT Pathway 491
Tumor Necrosis Factor Receptor Signaling 492
G Protein–Coupled Receptors 493
Immunoreceptors: T Cell Receptor, B Cell Receptor, and FcRs 494
PI3K/Akt Pathway 494
Phospholipase C Signaling: Calcium Flux and Protein Kinase C Activation 495
MAP Kinase Pathway 495
Co-stimulatory Receptors 496
Adhesion Molecules 497
Innate Receptor Signaling 497
Intra-cellular Receptor Signaling 497
Conclusion 498
References 499
28 Immunologic Repercussions of Cell Death 500
Key Points 500
Types of Cell Death 500
Apoptosis 500
Necrosis—Classical or Noncanonical? 501
Pyroptosis 501
Autophagy 501
Molecular Mechanisms of Cell Death 502
Apoptosis 502
Caspase Substrates of Note 502
Caspase Regulation: Activation and Inhibition 502
Caspase Inhibitors (Inhibitors of Apoptosis Proteins) 502
Caspase Recruitment Domains and Death Effector Domains—Activation Platforms of the Initiator Caspases 503
The Inflammasome-Activation Platform for Procaspase-1 and -11 503
The PIDDosome Activation Platform for Procaspase-2 503
The Death-Inducing Signaling Complex Activation Platform for Procaspase-8 504
The Apoptosome-Activation Platform for Procaspase-9 504
Mitochondria and Apoptosis— Intrinsic Apoptosis 504
Release of Intermitochondrial Regulators to Activate Caspases 504
Mitochondrial Outer Membrane Permeabilization and Apoptosis 504
Regulation of Mitochondrial Outer Membrane Permeabilization 504
Post-Translational Regulation of Bcl-2 Protein Function 506
Alternative/Additional Roles of Bcl-2 Proteins 508
Is MOMP Really the End of It All? 508
Death Receptor–Associated Signaling Events—Extrinsic Apoptosis 508
Molecular Interaction with the Mitochondrial Pathway—Caspase-8/BID 509
Noncanonical Forms of Caspase-Mediated Cell Death 509
Cell Death, Inflammasomes, and Caspase-1 Activation 509
Canonical NLRP3 Inflammasome 511
NLRC4 (IPAF or CARD12 Inflammasome) 514
NLRP1b Inflammasome 515
NLRP6 Inflammasome 515
AIM2 (Pyrin) Inflammasome 515
Noncanonical Inflammasome 516
Nonapoptotic Cell Death Signaling Pathways 516
Necrosis and Secondary Necrosis 516
Necrosis and the Mitochondrial Permeability Transition 516
Poly-ADP-Ribose Polymerase and Necrosis (Parthanatos) 517
Excitotoxicity and Necrosis 517
Ferroptosis 518
Programmed Necrosis or Necroptosis 518
Were We Missing Something? 518
Molecular Regulation of Programmed Necrosis 519
RIPK1—Apoptosis, Necroptosis, or Survival—Take Your Pick 519
RIPK1-Independent Necroptosis 520
Pro-inflammatory Effects of Programmed Necrosis 520
Autophagy 522
Molecular Mechanisms of Autophagy 522
Overeating Is Good for You—Autophagy and the Immune System 524
Mitophagy 524
Mitophagy and Immune Function 525
“Like All Successful Relationships, It’s Complex”—Interaction between Cell Death and Immune Function 525
Conclusion 526
Caspase Inhibitors 527
Necroptosis Inhibitors 527
BH3 Mimetics and BCL-2/MCL-1 Inhibitors 527
IAP Inhibitors 527
Autophagy Regulators 527
Selected References 527
References 531
29 Experimental Models for Rheumatoid Arthritis 537
Key Points 537
Arthritis Caused by Infectious Agents 538
Mycoplasma Arthritides 538
Lyme Arthritis 538
Staphylococcal Arthritis 538
Arthritis and Ankylosing Spondylitis Induced by Intra-cellular Bacteria 540
Arthritis Caused by Bacterial Fragments 540
Adjuvant-induced Arthritis 541
Cartilage Protein-Induced Arthritis 542
Collagen (II)-Induced Arthritis 542
Genetic Basis of Collagen-Induced Arthritis 543
Autoimmunity Associated with the Major Histocompatibility Complex in Collagen-Induced Arthritis 544
Induction of Arthritis with Other Cartilage and Joint-Related Proteins 545
Type XI Collagen-Induced Arthritis 545
Cartilage Oligomeric Matrix Protein-Induced Arthritis 545
Proteoglycan (Aggrecan)-Induced Arthritis 545
Antigen-Induced Arthritis 545
Glucose-6-Phosphate Isomerase-Induced Arthritis 545
Spontaneous Arthritis 545
Spontaneous Arthritis in Genetically Modified Strains 545
Use of Animal Models 546
Increasing the Knowledge of Disease Pathways 546
Developing New Therapeutic Strategies 546
Ethical Considerations 547
Conclusion 547
References 547
30 Neuronal Regulation of Pain and Inflammation 549
Key Points 549
Primary Afferent Fibers 550
Skin 550
Joint Afferents 550
Fascia 550
Muscle 550
Mechanically Sensitive Afferents— “Silent Nociceptors” 550
Sensitization 550
Efferent Functions of Primary Afferent Fibers 551
Neurogenic Inflammation 551
Neurogenic Anti-Inflammation 552
Dorsal Root Reflex 552
Pain Transmission in the Dorsal Horn 553
Descending Modulation 553
Neuronal Regulation of Inflammation in Acute Inflammatory Models 555
Neuronal Regulation of Inflammation in Chronic Models of Inflammation 556
Sympathetic Effects on Peripheral Inflammation are Time Dependent 557
Parasympathetic Effects on Peripheral Inflammation 557
Role of Pain in Inflammatory Disease 558
Selected References 560
References 563
IV Broad Issues in The Approach to Rheumatic Disease 566
31 Clinical Research Methods in Rheumatic Disease 566
Key Points 566
Measures of Disease Occurrence 566
Incidence 566
Measures of Effect 567
Clinical Research Study Designs 567
Observational Studies 567
Ecological Studies 569
Cross-Sectional Surveys 569
Case-Control Studies 569
Selection of Controls for Case-Control Study 569
Weaknesses of the Case-Control Design 569
Cohort Studies 570
Prospective Cohort Study 570
Retrospective Cohort Study 570
Nested Case-Control and Case-Cohort Studies 570
Clinical Trials 570
General Principles of Clinical Trial Design 570
Noninferiority Trials 572
Pragmatic Clinical Trials 572
Cluster Randomized Implementation Trials 572
Comparative Effectiveness Research and Patient-Centered Outcomes Research 573
Patient-Reported Outcomes 573
Biases in Study Design 573
Selection Bias 573
Information and Recall Bias 573
Confounding 574
Confounding by Indication and Channeling in Observational Studies of Therapeutics 574
Analytic Methods to Address Confounding by Indication 574
Effect Measure Modification 574
Screening 575
Sensitivity 575
Specificity 575
Predictive Value 575
Conclusion 575
References 575
32 Economic Burden of Rheumatic Diseases 577
Key Points 577
Studies of the Costs of All Forms of Musculoskeletal Disease 579
Other Nations 581
Cost of Discrete Conditions 581
Rheumatoid Arthritis 581
Systemic Lupus Erythematosus 582
Osteoarthritis 583
Back Conditions 583
Ankylosing Spondylitis 584
Fibromyalgia 584
Gout 584
Conclusions 584
References 585
33 Assessment of Health Outcomes 587
Key Points 587
What Types of Outcomes are Typically Measured in Arthritis? 588
Arthritis/Disease Specific Instruments: The Core Outcome Sets 588
Indicators of Pathophysiologic Manifestations of the Disease 588
Life Impact of the Disease 588
General Health Status. 588
Utilities: Value of Health State. 590
Symptoms 590
Disability Scales 590
Self-Efficacy/Effective Consumer. 590
Work Disability: Looking Beyond Absenteeism 590
Nonpaid Work Roles. 590
Patient-Specific Indices. 591
Toxicity/Adverse Events 591
Death 591
Resource Utilization (Costs) 591
How Do You Know What You Need to Measure? Defining Your Measurement Needs 591
What Do You Want to Measure? 591
Why Are You Measuring? 592
Who Comprises the Target Population? 592
Decision-Making Instrument for Selecting the Outcome That Can Meet Your Measurement Needs 592
Step 1: Is It a Good Match with Your Needs? 593
Step 2: Is It Feasible to Use? 593
Content Validity 593
Step 3: Do Its Numeric Scores Make Sense? (Construct Validity) 593
Item onto Scale (Only for Multi-item Reflective Scales): Structural Validity 593
Score Level Analysis: Construct Validity 594
Step 4: Can This Instrument Evaluate Change during a Period of Time in a Group of Patients? 594
Test-Retest Reliability 594
Step 5: are Thresholds of Meaning Defined for This Scale? 595
Benchmarking States 595
Changes in State 595
American College of Rheumatology Response Criteria 595
Minimal Clinically Important Differences/Improvements 596
Combined Approaches: Change and State 596
Areas of Growth in Health Outcome Assessment 596
Systematic Reviews of Measurement Properties 596
The Message Could Be in the Subgroups: The Rise of Cluster Analysis to Uncover Patterns of Responses 596
Adaptation to an Ongoing Disease 596
Conclusion 597
References 597
34 Biologic Markers in Clinical Trials and Clinical Care 600
Key Points 600
Molecular Biomarkers 600
Characteristics of Biomarker Measurement 600
Biomarker Validation 601
Biomarker Timing 602
Mechanistic and Descriptive Biomarkers 602
Biologic Sample Sources for Biomarker Assays 602
Biomarker Discovery 603
Biomarker Profiles 603
Application of Biomarkers in Clinical Practice and Drug Development 603
Diagnosis of Established Disease 603
Diagnosis of Pre-clinical or Asymptomatic Disease 603
Assessment of Disease Activity and Prognosis 603
Pharmacodynamic Biomarkers 604
Assessing Response to Therapy 604
Assessing Toxicity 604
Predictive Biomarkers 604
Mechanistic Biomarkers 605
Cytokines 605
Autoantibodies 605
Epigenetic Biomarkers 606
Metabolomics 607
Tissue Degradation Product Biomarkers 607
Conclusion 608
References 608
35 Occupational and Recreational Musculoskeletal Disorders 611
Key Points 611
Occupation-Related Musculoskeletal Disorders 611
Occupation-Related Rheumatic Diseases 613
Osteoarthritis 613
Other Occupational Rheumatologic Disorders 613
Recreation- and Sports-Related Musculoskeletal Disorders 614
Performing Arts–Related Musculoskeletal Disorders 618
Instrumentalists 618
Vocal Artists 620
Dancers 620
References 621
36 Cardiovascular Risk in Inflammatory Rheumatic Disease 624
Key Points 624
Biologic Mechanisms: Relationship between Inflammation and Cardiovascular Disease 624
Cardiovascular Morbidity in Rheumatoid Arthritis and Systemic Lupus Erythematosus 625
Rheumatoid Arthritis 625
Ischemic Heart Disease in Rheumatoid Arthritis 625
Heart Failure in Rheumatoid Arthritis 625
Systemic Lupus Erythematosus 626
Ischemic Heart Disease in Systemic Lupus Erythematosus 626
Heart Failure in Systemic Lupus Erythematosus 627
Cardiovascular Mortality in Rheumatoid Arthritis and Systemic Lupus Erythematosus 627
Rheumatoid Arthritis 627
Systemic Lupus Erythematosus 627
Risk Factors for Cardiovascular Disease 628
Traditional Cardiovascular Risk Factors in Rheumatoid Arthritis: Occurrence and Impact 628
Smoking in Persons with Rheumatoid Arthritis 628
Hypertension in Rheumatoid Arthritis 628
Dyslipidemia in People with Rheumatoid Arthritis 629
Diabetes Mellitus and Metabolic Syndrome in Rheumatoid Arthritis 630
Body Composition/Obesity in Rheumatoid Arthritis 630
Nontraditional Cardiovascular Risk Factors in Rheumatoid Arthritis: Occurrence and Impact 630
The Impact of Rheumatoid Arthritis Disease Activity and Severity on Cardiovascular Co-Morbidity 630
Medications as Cardiovascular Risk Factors 631
Traditional and Nontraditional Cardiovascular Risk Factors in Systemic Lupus Erythematosus 631
Cardiovascular Mortality, Morbidity, and Risk Factors in Other Rheumatic Diseases 631
Ankylosing Spondylitis 631
Psoriasis and Psoriatic Arthritis 631
Giant Cell Arteritis and Polymyalgia Rheumatica 632
Dermatomyositis and Polymyositis 632
Osteoarthritis 632
Pediatric-Onset Rheumatological Diseases 632
Cardiovascular Risk Assessment 632
Connection to the Clinic 633
Risk Scores and Risk Markers: Biomarkers and Tests for Subclinical Disease 633
Translating Knowledge into Clinical Practice 633
Managing CVD Risk in Patients with Rheumatic Disease 634
Patient Awareness of Cardiovascular Disease Risk 634
Future Directions 635
Selected References 635
References 638
37 Cancer Risk in Rheumatic Diseases 643
Key Points 643
Malignancy in Autoimmune Rheumatic Diseases 643
Rheumatoid Arthritis 644
Systemic Lupus Erythematosus 645
Systemic Sclerosis (Scleroderma) 646
Idiopathic Inflammatory Myopathy 646
Sjögren’s Syndrome 647
Vasculitis 647
Seronegative Spondyloarthritis 648
Cancer Risks Associated with Anti-rheumatic Drug Therapies 648
Nonbiologic Disease-Modifying Anti-rheumatic Drug Therapy 648
Methotrexate 649
Azathioprine 649
Cyclosporine 649
Alkylating Agents 649
Biologic Therapeutic Agents 650
Anti–Tumor Necrosis Factor Agents 650
Rituximab 651
Abatacept 652
Tocilizumab 652
Anakinra 652
Tofacitinib 652
Cancer Screening in Patients with Rheumatic Disease 652
Conclusion 652
References 653
38 Introduction to Physical Medicine, Physical Therapy, and Rehabilitation 656
Key Points 656
Brief History of Rehabilitation in Rheumatology 656
Goals of Rehabilitation, Rehabilitation Team Members, and Models of Team Care 656
International Classification of Functioning, Disability, and Health: A Framework for Rehabilitation Management 657
Assessment Tools and the Rehabilitation Cycle 658
What Do Current Guidelines Suggest for Rehabilitation Management of Select Rheumatologic Conditions? 658
Nonpharmacologic Interventions to Manage Rheumatologic Conditions 658
Principles Guiding Rehabilitation in People with Rheumatologic Conditions 661
Rehabilitation of Select Rheumatologic Conditions 661
Rheumatoid Arthritis and Inflammatory Arthritis 661
Systemic Lupus Erythematosus 663
Osteoarthritis 663
Ankylosing Spondylitis 664
Strategies to Increase Adherence to Exercise and Rehabilitation 664
Conclusion 664
References 664
39 Pregnancy and Rheumatic Diseases 668
Key Points 668
Interplay of Rheumatic Disease and Pregnancy Physiology 668
General Principles of Pregnancy and Rheumatic Disease: Pre-pregnancy Assessment 669
Severe Disease Damage 669
Disease Activity 669
Medication Review 669
Assessment of Autoantibodies 669
Counseling 669
Systemic Lupus Erythematosus 669
Maternal Outcomes 670
Fetal and Neonatal Outcomes 670
Management 670
Mixed Connective Tissue Disease and Undifferentiated Connective Tissue Disease 671
9780323414944v2_WEB 1344
Front Cover 1344
Kelley and Firestein's Textbook of Rheumatology, 2-Volume Set 1345
Copyright Page 1348
Dedication 1349
Acknowledgement 1351
Contributors 1353
Preface 1369
Table Of Contents 1371
IX Rheumatoid Arthritis 1375
69 Etiology and Pathogenesis of Rheumatoid Arthritis 1375
Key Points 1375
How Rheumatoid Arthritis Begins 1375
Etiology 1377
Role of Human Leukocyte Antigen-DR in the Disease Susceptibility and Severity 1378
Additional Polymorphisms: Cytokines, Citrullinating Enzymes, PTPN22, and Others 1378
Interactions between Genes and Environment 1379
Microbiome 1380
Sex 1380
Epigenetics 1381
Changing Epidemiology 1382
Pathogenic Mechanisms 1382
Infectious Agents: Direct Infection and Innate Immune Responses 1383
Toll-like Receptors and the Inflammasome in the Joint 1383
Bacteria, Mycobacteria, Mycoplasma, and Their Components 1383
Epstein-Barr Virus, dnaJ Proteins, and Molecular Mimicry 1384
Parvovirus 1384
Other Viruses 1385
Autoimmunity 1385
Anti-citrullinated Protein Antibodies 1385
Antibodies to Other Modified Antigens: Anti-carbamylated Peptide Antibodies 1387
Rheumatoid Factor 1387
Autoimmunity to Cartilage-Specific Antigens 1388
Type II Collagen. 1388
gp39 and Other Cartilage-Specific Antigens. 1388
Autoimmunity to Nonarticular Antigens 1388
Glucose-6-Phosphoisomerase 1388
Heterogeneous Nuclear Ribonucleoprotein-A2 and Heavy-Chain Binding Protein. 1389
Heat Shock Proteins. 1389
Synovial Disease and Biology 1389
Synovial Intimal Lining Cells: Type A and Type B Synoviocytes 1389
Aggressive Behavior of RA Fibroblast-like Synoviocytes 1391
Tumor-like Properties. 1391
Matrix Invasion. 1391
Synovial T Lymphocytes 1392
Immunohistologic Patterns 1392
Regulation of T Cell Aggregate Formation. 1392
Synovial T Cell Phenotype 1393
Co-stimulatory Molecules. 1393
Adhesion Molecules. 1393
Chemokine Receptors. 1393
T Cell Receptor Rearrangements. 1393
Determinants of T Cell Phenotype. 1393
Synovial T Cell Immunoreactivity 1393
Activation of Synovial Cells by Cell-Cell Contact with T Lymphocytes 1394
Restoring T Cell Tolerance 1394
Regulatory T Cells 1394
Synovial B Cells 1395
Cytokine Regulation of Synovial B Cells 1395
Synovial B Cell Maturation 1395
Role of B Cells in RA: Clinical Improvement after B Cell Depletion 1396
Dendritic Cells 1396
Mast Cells, Polymorphonuclear Leukocytes, and Natural Killer Cells 1397
Bone Marrow Cells 1398
Synovitis in Pre- versus Early-Stage versus Late-Stage Rheumatoid Arthritis 1398
Synovial Fluid and the Synovial Fluid Cartilage Interface 1399
Polymorphonuclear Leukocytes 1399
Synovial Fluid Lymphocytes 1400
Platelets and Platelet Microparticles 1400
Intra-articular Immune Complexes and Complement Fixation 1400
Synovial Fluid Immune Complexes 1400
Immune Complexes Embedded in Cartilage 1400
Synovial Fluid Complement 1401
Targeting Complement 1401
Arachidonate Metabolites 1401
Prostaglandins 1401
Leukotrienes 1402
Anti-inflammatory Arachidonic Acid Metabolites 1402
Peripheral Blood Lymphocytes 1402
Role of T Cell Cytokines 1402
Type 1 T Helper Cell Cytokines 1403
Type 2 T Helper Cell Cytokines 1404
Type 17 T Helper Cytokines 1404
T Helper Cell Cytokine Imbalance 1404
Role of Macrophage and Fibroblast Cytokines 1405
Pro-inflammatory Macrophage and Fibroblast Cytokines 1405
Interleukin-1 Family 1405
Interleukin-1. 1405
Interleukin-18. 1405
Interleukin-33 and Other Alarmins. 1406
Tumor Necrosis Factor and the Tumor Necrosis Factor Superfamily 1406
Interleukin-6 Family 1406
Interleukin-12 Family 1407
Interleukin-15 1407
Interleukin-32 1407
Colony-Stimulating Factors 1407
Interferons 1408
Chemokines 1408
Platelet-Derived Growth Factor and Fibroblast Growth Factor 1409
Immunosuppressive Cytokines and Cytokine Antagonists 1409
Interleukin-1 Receptor Antagonist 1409
Interleukin-10 1409
Transforming Growth Factor-β 1409
Soluble Cytokine Receptors and Binding Proteins 1410
Perpetuation of Synovitis by Cytokine Networks 1410
Signal Transduction and Transcription Factors 1411
Nuclear Factor-κB 1411
Activator Protein-1 1411
Mitogen-Activated Protein Kinases 1412
Janus Kinases and the Signal Transducers and Activators of Transcription 1413
Interferon Regulation: IKK-Related Kinases and Interferon Regulatory Factors 1413
Spleen Tyrosine Kinase 1414
PI3 Kinases and Other Signaling Pathways 1414
Cell Survival and Death in Rheumatoid Synovium 1414
Reactive Oxygen and Nitrogen 1414
Apoptosis and Autophagy 1414
Genes Regulating Apoptosis 1414
Genes Regulating Autophagy 1415
Possible Therapeutic Interventions that Increase Apoptosis 1415
Tumor Suppressor Genes 1415
Blood Vessels and the Synovial Vasculature 1416
Angiogenesis: Feeding the Starved Synovium 1416
Hypoxia 1416
Angiogenic Factors 1417
Targeting Angiogenesis 1417
Adhesion Molecule Regulation 1417
Integrins and Their Ligands 1418
Therapeutic Potential of Blocking Adhesion Molecules 1418
Cartilage and Bone Destruction 1418
Cartilage Destruction and the Pannus-Cartilage Junction 1418
Proteases: Mediators of Joint Destruction 1419
Matrix Metalloproteinases 1419
Regulation of MMP Production. 1420
MMP Expression in Synovium. 1420
Cysteine Proteases: The Cathepsins 1420
Aggrecanases 1421
Endogenous Protease Inhibitors 1421
Regulation of Bone Destruction 1422
Tissue Repair 1423
Conclusion 1423
Selected References 1423
References 1427
70 Clinical Features of Rheumatoid Arthritis 1434
Key Points 1434
Epidemiology and Disease Burden 1434
Disease Frequency 1434
Disease Outcomes 1434
Pre-clinical Rheumatoid Arthritis 1435
Diagnosis 1435
Clinical Presentations of Early Rheumatoid Arthritis 1439
Patterns of Onset 1439
Insidious Onset 1439
Acute or Intermediate Onset 1439
Atypical Onset 1439
Other Patterns of Onset 1440
Palindromic Rheumatism. 1440
Arthritis Robustus. 1440
Extra-articular Disease as Initial Presentation. 1440
Course and Complications of Established Rheumatoid Arthritis 1440
Articular Manifestations 1440
Hands and Wrists 1440
Feet and Ankles 1442
Cervical Spine 1443
Intermediate and Large Peripheral Joints 1444
Temporomandibular, Cricoarytenoid, Sternoclavicular and Manubriosternal Joints 1445
Extra-articular Manifestations 1445
Mucocutaneous 1445
Ocular 1446
Bone 1447
Muscle 1447
Hematologic 1447
Vasculitis 1448
Pulmonary 1449
Pleural Disease. 1449
Interstitial Lung Disease. 1449
Obstructive Lung Disease. 1450
Nodular Lung Disease. 1450
Cardiovascular 1450
Atherosclerosis. 1450
Pericarditis. 1450
Myocarditis. 1450
Conduction Defects. 1450
Endocardial Inflammation and Granulomatous Aortitis. 1450
Prognosis and Individual Patient Follow-up 1450
References 1451
71 Treatment of Rheumatoid Arthritis 1454
Key Points 1454
Goal of Rheumatoid Arthritis Treatment 1455
Classes of Drugs 1457
Disease-Modifying Anti-rheumatic Drugs 1457
Methotrexate, Sulfasalazine, Hydroxychloroquine, Leflunomide, and Azathioprine 1457
Biologic Disease-Modifying Anti-rheumatic Drugs 1458
Glucocorticoids 1458
Other Conventional Disease-Modifying Anti-rheumatic Drugs 1458
Azathioprine. 1458
Cyclosporine. 1459
Minocycline and Doxycycline 1459
Nonsteroidal Anti-inflammatory Drugs 1460
Treatment Approaches and Strategies 1460
Treatment of the Disease-Modifying Anti-rheumatic Drug–Naïve Patient 1461
Initial Therapy—The First Disease-Modifying Anti-rheumatic Drug 1462
Initiating Treatment with a Single Disease-Modifying Anti-rheumatic Drug versus Combinations of Disease-Modifying Anti-rheumatic Drugs 1463
The BeSt Study 1463
Conclusions from the BeSt Study 1465
Treatment of Early Aggressive Rheumatoid (TEAR) Trial 1465
Conclusions from the TEAR Trial 1466
Treatment of Patients with Active Disease Despite Treatment with Methotrexate 1467
Rheumatoid Arthritis: Comparison of Active Therapies Trial 1468
Conclusions from the RACAT Trial 1469
Treatment of “Refractory” Patients or Those with Active Disease Despite TNF Inhibition 1469
The Niche for Tofacitinib and Potentially Other Janus Kinase Inhibitors 1470
How to Manage Patients in Remission Who Are Taking Disease-Modifying Anti-rheumatic Drugs 1470
Use of Combinations of Biologic Agents 1471
Interpreting Radiographic Progression and the Use of Other Imaging Modalities 1471
Adjuncts to Medications 1473
Patient Education 1473
Pain Control 1473
Rest and/or Exercise and Activities of Daily Living 1474
Treatment of Rheumatoid Arthritis Comorbidities and the Interactions of Rheumatologists with Primary Care Physicians 1474
Evidence That Patients with Rheumatoid Arthritis are Doing Better 1475
Research Agenda: Unmet Needs 1475
The Horizon 1476
Selected References 1476
References 1480
72 Early Synovitis and Early Undifferentiated Arthritis 1485
Key Points 1485
What is Early-Stage Synovitis? 1485
Early-Stage Arthritis Clinics 1485
What is Undifferentiated Arthritis? 1486
Characteristics of Early-Stage Undifferentiated Arthritis 1486
Remission Rates in Early-Stage Undifferentiated Arthritis and Rheumatoid Arthritis 1486
Joint Destruction in Early-Stage Undifferentiated Arthritis and Rheumatoid Arthritis 1487
Biologic Mechanisms in Undifferentiated Arthritis and Determinants of Progression to Rheumatoid Arthritis 1488
Window of Opportunity 1489
Treatment of Undifferentiated Arthritis 1489
Individualized Treatment of Undifferentiated Arthritis 1489
References 1491
73 Sjögren’s Syndrome 1493
Key Points 1493
Historic Perspective 1493
Definitions and Classification Criteria 1494
Epidemiology 1497
Etiology and Pathogenesis 1497
Genetics 1498
Adaptive and Innate Immunity 1499
Autoantibodies 1501
Glandular Epithelium 1501
Clinical Features 1502
Keratoconjunctivitis Sicca 1502
Xerostomia 1502
Involvement of Other Exocrine Glands 1505
Extraglandular Manifestations 1505
Fatigue 1505
Raynaud’s syndrome 1505
Skin 1505
Joints 1506
Lung 1506
Kidney 1506
Gastrointestinal 1507
Nervous System 1507
Vasculitis 1508
Risk for Cardiovascular Disease 1508
Lymphoma 1508
Associated Diseases 1509
Diagnosis and Diagnostic Tests 1509
Keratoconjunctivitis Sicca and Xerostomia 1509
Labial Salivary Gland Biopsy 1510
Laboratory Evaluation 1510
Approach to Diagnosis 1510
Differential Diagnosis 1511
Treatment 1511
Outcome 1513
Conclusion 1513
Selected References 1514
References 1517
X Spondyloarthropathies 1521
74 Etiology and Pathogenesis of Spondyloarthritis 1521
Key Points 1521
Etiology of Spondyloarthritis 1521
Genetics 1521
Environment 1522
Pathogenesis of Spondyloarthritis 1523
Functional Genomics 1523
HLA-B27 1523
Arthritogenic Peptides 1523
HLA-B27 Misfolding 1524
Free Heavy Chain Dimers and Monomers 1524
ERAP1 1525
Genetic Susceptibility Distinct from the Major Histocompatibility Class I Pathway 1525
IL-23 and the Spondyloarthritis Phenotype 1525
Cytokines and Cytokine-Producing Cells in Spondyloarthritis 1527
Structural Damage in Ankylosing Spondylitis 1527
Bone Homeostasis and Aberrant Bone Formation 1527
Inflammation and New Bone Formation in Spondyloarthritis 1528
Current and Future Therapeutic Targets in Spondyloarthritis 1529
Targeting the IL-23/IL-17 Axis 1529
Selected References 1529
References 1532
75 Ankylosing Spondylitis 1536
Key Points 1536
Classification 1536
Criteria for Ankylosing Spondylitis and Axial Spondyloarthritis 1536
Epidemiology 1538
Prevalence 1538
Incidence 1538
Racial Distribution 1538
Burden of Disease 1538
Genetics 1538
Major Histocompatibility Complex Associations with Ankylosing Spondylitis 1538
Non–Major Histocompatibility Complex Associations of Ankylosing Spondylitis 1539
Aminopeptidase Genes and Ankylosing Spondylitis 1539
Interleukin-23 Pathway Genes and Ankylosing Spondylitis 1541
Lymphocyte Development and Activation Genes 1541
Pathogenesis 1541
HLA-B27 1541
ERAP1 and Other Aminopeptidases 1542
IL-23 Signaling Pathway 1542
Structural Remodeling and Ankylosis 1542
Clinical Manifestations 1543
Skeletal Manifestations 1543
Low Back Pain and Stiffness 1543
Chest Pain 1543
Tenderness 1543
Joints 1543
Extraskeletal Manifestations 1544
Eye Disease 1544
Cardiovascular Disease 1544
Pulmonary Disease 1544
Neurologic Involvement 1544
Renal Involvement 1544
Osteoporosis 1544
Physical Examination 1545
Spinal Mobility 1545
Chest Expansion 1545
Enthesitis 1545
Sacroiliitis 1545
Posture 1545
Laboratory Tests 1545
Imaging Studies 1545
Conventional Radiography 1545
Computed Tomography and Magnetic Resonance Imaging 1546
Diagnosis 1547
Ankylosing Spondylitis in Males and Females 1548
Outcome 1548
Assessment and Monitoring 1549
Management 1549
Physiotherapy 1550
Pharmacotherapy 1552
Nonsteroidal Anti-inflammatory Drugs 1552
Second-Line Drugs 1552
Biologic Therapies 1553
Anterior Uveitis 1554
Surgery 1554
Osteoporosis 1555
Conclusion 1556
Selected References 1556
References 1560
76 Undifferentiated Spondyloarthritis 1565
Key Points 1565
Epidemiology 1565
Genetics, Pathogenesis, and Etiology 1566
Clinical Features 1567
Laboratory, Radiographic, and Advanced Imaging Findings 1568
Diagnosis 1568
Treatment 1568
References 1568
77 Psoriatic Arthritis 1570
Key Points 1570
Epidemiology 1570
Clinical Features 1571
Differential Diagnosis 1575
Laboratory Features 1575
Radiographic Features 1575
Plain Radiography 1575
Musculoskeletal Ultrasound 1575
Magnetic Resonance Imaging 1577
Other Imaging Modalities 1577
Diagnosis 1578
Clinical Course and Outcome 1578
Comorbidities in Psoriatic Arthritis 1579
Outcome Domains and Instruments 1580
Pathogenesis 1581
Genetic Factors 1581
Environmental Factors 1582
Animal Models 1582
Immunopathology 1583
Psoriasis Skin 1583
Psoriatic Synovium 1583
Entheseal Sites 1583
Cytokines 1584
Matrix Metalloproteinases and Cartilage Destruction 1584
Bone Remodeling 1584
Conclusion 1585
Treatment 1585
Traditional Agents 1585
Biologics 1589
Selected References 1590
References 1594
78 Enteropathic Arthritis 1598
Key Points 1598
Gut Mucosa Biology 1598
Gut Microbiota 1599
Gastrointestinal-Associated Lymphoid Tissue 1601
Inflammatory Bowel Disease 1604
Epidemiology 1604
Genetics 1605
Pathogenesis 1605
Clinical Features 1607
Diagnosis 1609
Treatment 1609
Outcome 1609
Brucella Arthritis 1609