- •Preface
- •Contents
- •Contributors
- •1 Introduction
- •1.1 Historical Background
- •1.2 Pitfalls in Diagnosis and Methodology
- •1.3 Methods to Assess Disease Activity
- •1.4 Summary
- •References
- •2.1 Introduction
- •2.4 Pearls of Wisdom
- •References
- •3.1 Background: Overall Approach to Patient Care
- •3.1.1 Pearl
- •3.1.2 Pearl
- •3.2 Diagnosis Criteria and Laboratory Tests
- •3.2.1 Myth
- •3.2.2 Pearl
- •3.2.3 Myth
- •3.2.4 Myth
- •3.2.5 Pearl
- •3.2.6 Pearl
- •3.2.7 Pearl
- •3.3 Myths and Pearls About Clinical Presentations
- •3.3.1 Pearl
- •3.3.2 Myth
- •3.3.3 Pearl
- •3.3.4 Pearl
- •3.3.5 Pearl
- •3.3.6 Pearl
- •3.3.7 Pearl
- •3.3.8 Pearl
- •3.3.9 Pearl
- •3.3.10 Pearl
- •3.3.11 Pearl
- •3.3.12 Pearl
- •3.3.13 Myth
- •3.3.14 Pearl
- •3.3.15 Pearl
- •3.3.16 Myth
- •3.4 Myths and Pearls About Pathogenesis
- •3.4.1 Myth
- •3.4.2 Pearl
- •3.4.3 Pearl
- •3.4.4 Myth
- •3.4.5 Pearl
- •3.5 Myths and Pearls About Treatment
- •3.5.1 Myth
- •3.5.2 Pearl
- •3.5.3 Pearl
- •3.5.4 Pearl
- •3.5.5 Pearl
- •3.5.6 Pearl
- •3.5.7 Pearl
- •References
- •4.1 Background and Overview
- •4.1.1 Need for Written Information
- •4.1.2 Use of Internet as a Method to Provide Information
- •4.1.3 Patient Access to Computers
- •4.1.4 Types of Information Supplied to Patients and Referring Physicians
- •4.2.1 Background: The Confusion Surrounding Criteria for Autoimmune Disorders
- •4.2.5 Criteria for Fibromyalgia
- •4.3 Laboratory Results for ANA Often Drive Clinical Diagnosis
- •4.5 Status of Biologic Drugs in SS Patients
- •4.6 Ocular Treatment
- •4.6.2 Blepharitis
- •4.7 Therapy of Oral Manifestations
- •4.7.1 Prevention of Dental Caries
- •4.7.2 Oral Candida Prevention and Treatment
- •4.8 Summary
- •References
- •5.1 Introduction
- •5.4 Outcome Measures in SS
- •5.4.1 Outcome Measures in SS: A Brief History
- •5.6 Outcome Measures in SS: The Italian Study
- •References
- •6.1 Introduction
- •6.2 Benign Lymphoepithelial Lesion in Salivary Glands
- •6.3.1.2 Ectopic Germinal Center Formation
- •6.3.1.3 Clinical Implications of Ectopic Germinal Center Formation
- •6.4 Late Breaking Update
- •References
- •7.1 Conventional Radiographs
- •7.1.1 Sialography
- •7.2 Computer Tomography
- •7.3 Ultrasound
- •7.4 Magnetic Resonance Imaging
- •7.5 Nuclear Medicine
- •7.5.1 Scintigraphy
- •7.6 Comparison of Nuclear Medicine, Ultrasound, and MRI
- •References
- •8.1 Introduction
- •8.2 Evidence Supporting a Genetic Component in SS
- •8.4 Lessons from SLE and Other Autoimmune Diseases
- •8.5 Genes Implicated in SS
- •8.7 Insights from Genomic and Proteomic Studies
- •8.8 Conclusion
- •References
- •9.1 Introduction
- •9.2.4 Antibodies to Nuclear Protein NA14
- •9.3.1 Initiation Phase
- •9.3.2 Recognition Phase
- •9.3.3 Establishment Phase: Autoreactive T and B Lymphocytes Dysregulation and Aberrant Cytokines Production
- •9.3.5 Effector Phase
- •References
- •10.1 Introduction
- •10.2.1 Ro/La RNP Particles
- •10.2.3 The Ro60 Autoantigen
- •10.2.4 The Ro52 Autoantigen
- •10.2.5 The Multifunctional Chaperone Calreticulin
- •10.4.2 Early Epitope Recognition in Autoimmune Diseases and Epitope Spreading
- •References
- •11.2 Acinar Cell
- •11.3 Neuropeptides
- •11.3.1 Acinotrophic Neurogenic Stimuli
- •11.4 Sex Steroids
- •11.4.1 Steroidogenesis in Adrenal Glands
- •11.4.2 Regulation of the Adrenal Steroidogenesis
- •11.4.4 Peripheral Intracrine Synthesis of Sex Steroids
- •11.4.5 Intracrine Sex Steroids Production in pSS and sSS
- •11.4.7 Putative Mechanism of Action of the Intracrine Processing Defect
- •11.5.1 General Histopathology
- •11.5.2 T Lymphocytes
- •11.5.3 B Lymphocytes
- •11.5.4 Chemokines
- •11.5.5 Adhesion Molecules
- •11.5.6 Cytokines
- •References
- •12.1 Background
- •12.2 Incidence, Symptomatic Presentation, and Impact on Quality of Life
- •12.3 Diagnostic Screening Examination
- •12.4 Overview of Dry Eye Management
- •12.4.1 Dry Eyes Deserve Respect and Careful Monitoring
- •12.4.2 Four Levels of Severity Differentiation
- •12.4.2.1 Level 1
- •12.4.2.2 Level 2
- •12.4.2.3 Level 3
- •12.4.2.4 Level 4
- •12.5.2 General Guidelines for the Dry Eye Patient
- •12.6 Additional Types of Therapy
- •12.7 Moisture Preservation and Oral Medications
- •12.7.2 Punctal Plugs
- •12.8 Oral Medications and Supplements
- •12.8.1 Dietary Fatty acids (Flaxseed Oil) and Dry Eyes
- •12.8.2 Oral Medications
- •12.9 Complications Associated with Ophthalmologic Cosmetic Procedures
- •12.10 Summary
- •References
- •13.1 Introduction
- •13.2 The Lacrimal Functional Unit (LFU)
- •13.3 The General Role of the LFU in Normal and Pathological Situation
- •13.4 Innervation of the Lacrimal Functional Unit
- •13.5 Efferent Structures
- •13.5.1 Lacrimal Glands
- •13.5.2 Goblet Cells
- •13.5.3 Meibomian Glands
- •13.6 Maintenance of the Lacrimal Functional Unit
- •13.6.1 Hormonal
- •13.6.2 Immunological
- •13.8 The Normal Ocular Surface Environment
- •13.9 The Makeup of the Tear Film
- •13.9.1 Hydrated Mucin Gel
- •13.9.3 Aqueous Components
- •13.10 The Pathophysiology of Dry Eye
- •13.10.1 Loss of Hormonal Support
- •13.10.2.1 Afferent Arm
- •13.10.2.2 Efferent Arm
- •13.11 Loss of Ocular Surface Homeostasis
- •13.11.1 Alterations of the Mucin, Lipid, and Aqueous Composition
- •13.11.2 Mucins
- •13.11.3 Lipids
- •13.12 The Ocular Surface Immunosuppressive Environment
- •13.14 Late-Breaking Additions
- •References
- •14.1 Saliva in Oral Health and Disease
- •14.1.1 Saliva in Dental and Mucosal Defense
- •14.1.2 Assessment of Oral Dryness
- •14.1.2.2 Objective Measurements of Hyposalivation
- •14.2 Saliva as a Diagnostic Fluid
- •14.2.1 Biomarker Analyses in Saliva
- •14.3 Complications of Oral Dryness
- •14.3.1 Management of Xerostomia
- •14.3.2 Caries Preventive Measures
- •14.3.2.3 Dietary Advice
- •14.3.2.4 The Time Factor
- •References
- •15.1.1 Endothelial Cells
- •15.1.2 Epithelial Cells
- •15.1.3 T cells
- •15.1.4 B cells
- •15.2 Mechanisms Mediating Salivary Gland Dysfunction
- •15.2.1 Acinar Cell Innervation and Humoral Immunity
- •15.2.3 Fluid Movement in the Salivary Glands and Aquaporins
- •15.3.1 Environmental Factors
- •15.3.2 Secondary Signals
- •15.3.3 Apoptosis, Autoantigens, and Potential Danger Signals in the Salivary Glands
- •15.3.4 Immunoregulation
- •15.3.5 B-cell-Activating Factor
- •15.3.6 Hormones
- •15.3.7 Microchimerism
- •References
- •16.1 Introduction
- •16.2 Diagnosis
- •16.3 Head and Neck Manifestations
- •16.3.1 Ophthalmic
- •16.3.2 Oral
- •16.3.3 Otologic
- •16.3.4 Rhinologic
- •16.3.5 Laryngeal
- •16.3.6 Esophageal
- •16.3.7 Thyroid
- •16.3.8 Neurological
- •16.4 Treatment
- •16.5 Conclusion
- •16.6 Patient Handout
- •References
- •17.1 Introduction
- •17.2 Cutaneous/Dermatologic Manifestations
- •17.4 Endocrinopathic/Pancreatic Manifestations
- •17.4.1 Hypothyroidism
- •17.4.2 Adrenal
- •17.4.3 Pancreas
- •17.5 Pulmonary Manifestations
- •17.5.1 Interstitial Pneumonitis
- •17.6.1 Pericarditis
- •17.6.2 Autonomic Manifestations
- •17.6.3 Congenital Heart Block
- •17.6.4 Accelerated Atherosclerosis
- •17.7 Gastrointestinal Manifestations
- •17.8 Hepatic and Pancreatic Manifestations
- •17.9 Renal/Urological Manifestations
- •17.10 Hematologic Manifestations
- •17.11 Obstetrical/Gynecological Manifestations
- •17.12 Vasculitis
- •17.12.1 CNS Arteritis in the SS Patient
- •17.13 Differential Diagnosis of Extraglandular Manifestations of SS
- •17.13.1 Medications and Other Metabolic Disorders
- •17.14 Manifestations and Differential Diagnosis in the Pediatric Population
- •17.15 Summary
- •17.16 Late-Breaking Updates
- •References
- •18.1 Introduction
- •18.2 Treatment and Management of Cutaneous Manifestations
- •18.2.1 Treatment of Dry Skin
- •18.3 Arthralgia/Arthritis
- •18.4.1 Chronic Cough
- •18.5 Renal Manifestations
- •18.5.1 Interstitial Nephritis
- •18.5.1.1 Glomerular Disease
- •18.6 Gastrointestinal Manifestations
- •18.6.1 Mesenteric Vasculitis
- •18.6.2 Primary Biliary Cirrhosis
- •18.7 Urologic
- •18.8 Therapeutic Management of Obstetrical/Gynecological Manifestations
- •18.9 Special Precautions at the Time of Surgery
- •18.10 Vaccinations in the SS Patient
- •18.11 Summary
- •18.12 Late-Breaking Updates
- •References
- •19.1 Introduction
- •19.3.1 Fatigue
- •19.3.2 Musculoskeletal
- •19.3.4 Gastrointestinal Manifestations
- •19.3.5 Liver Involvement
- •19.3.6 Lung Involvement
- •19.3.7 Kidney Involvement
- •19.3.8 Neurologic Involvement
- •19.3.9 Hematologic Involvement
- •19.4 Conclusions
- •References
- •20.1 Introduction
- •20.2 Diagnosis
- •20.3 Staging and Evaluation of Treatment Response
- •20.4 Treatment
- •20.5 Summary/Pearls
- •References
- •21.1 Introduction
- •21.2 What Is Fatigue?
- •21.3 Potential Causes of Fatigue in pSS
- •21.3.1 Biological
- •21.3.1.1 Cytokines
- •21.3.1.2 Neuroendocrine
- •21.3.1.3 Sleep
- •21.3.2 Psychosocial
- •21.3.2.1 Depression
- •21.3.2.2 Fibromyalgia
- •21.4 Measurement of Fatigue and Other Extraglandular Symptoms
- •21.6 Potential Approaches to Treatment of Fatigue and Other Extraglandular Symptoms
- •21.7 Measurement of Dryness (Sicca) Symptoms
- •21.8 Data from Existing Clinical Studies Addressing Dryness in pSS
- •21.9 Conclusion: Clinical Trial Outcomes
- •References
- •22.1 Introduction
- •22.2 Clinical Evaluation of Neurological Findings in SS
- •22.3.1 Role of Cell-Mediated Immunity
- •22.3.2 The Role of Antibodies Associated with Neurological Manifestations of SS
- •22.4 Investigations
- •22.4.1 Neurophysiology
- •22.4.2 Autonomic Studies
- •22.4.3 MR Imaging of the Spinal Cord
- •22.5 Peripheral Clinical Manifestations
- •22.6 Painful Sensory Neuropathies
- •22.6.1 Differential Diagnosis
- •22.7 Sensory Ataxic Neuropathy
- •22.7.1 Differential Diagnosis
- •22.8 Neuromuscular Weakness
- •22.8.1 Differential Diagnosis
- •22.9 Neuromuscular Pain
- •22.9.1 Differential Diagnosis
- •22.10 Autonomic Neuropathy
- •22.10.1 Differential Diagnosis
- •22.11 Trigeminal Neuropathy and Other Cranial Neuropathies
- •22.12 Central Nervous System Manifestations
- •22.12.2 Cognitive Impairment
- •22.12.3 Movement Disorders
- •22.12.4 Aseptic meningitis and Meningoencephalitis
- •22.12.5 Other Neurological Disorders
- •22.13 Investigations of Central Nervous System Manifestations
- •22.13.1 Serology
- •22.13.2 Spinal Fluid
- •22.13.4 Nuclear Brain Imaging Studies
- •22.13.5 Cerebral Angiography
- •22.14 The Puzzling Neurological Manifestations of Fibromyalgia
- •22.15 Interpretation of ANA in the Patient with Neurological Symptoms
- •22.16 Treatment
- •22.16.1 Peripheral Nervous System Treatment: Overview
- •22.16.2 Painful Sensory Neuropathies
- •22.16.3 Ataxic Neuropathy
- •22.16.4 Motor and Sensory Neuropathies
- •22.16.5 Central Nervous System Treatment
- •22.16.6 Side Effects of Immunosuppressive Therapy
- •22.17 Summary of Special Points to Neurologists
- •22.17.3 Relationship of Neurological Symptoms to Sicca Manifestations
- •22.18 Summary for Rheumatologists
- •References
- •23.1 Introduction
- •23.3.1 Labial Minor Salivary Gland Biopsy
- •23.3.2 Sialography
- •23.4 The Application of a Bite Guard
- •References
- •24.1 Introduction
- •24.2 How to Provide the Essential Tear Components to the Ocular Surface
- •24.3 Use of Autologous Serum Eye Drops for the Treatment of Dry Eye
- •24.4 Ongoing Research with Autologous Serum Eye Drops
- •24.5 Preparation of Autologous Serum Eye Drops
- •24.8 Conclusion
- •References
- •References
- •27.1 A Disease of Antiquity in Ancient China
- •References
- •References
- •References
- •30.1 Introduction
- •30.2 Evaluation of Systemic Features of Primary SS
- •30.2.4 Comparisons of Systemic Disease Activity Scores
- •30.3.1 The SSI: Sicca Symptoms Inventory
- •30.4 Conclusion
- •References
- •31.1 Clinical Practice Guidelines
- •31.2 Clinical Trials Consortium
- •31.3 Professional Education and Awareness
- •31.4.1 Rheumatology Working Group
- •31.4.2 Ocular Working Group
- •31.4.3 Oral Working Group
- •31.4.5 Facilitator for Both Initiatives
- •32.1 Introduction
- •32.2 For Which Patients Should Biological Therapy Be Considered?
- •32.7 BAFF Inhibition
- •32.8 Interferon Inhibition
- •32.9 Gene Therapy
- •32.10 Other Targets for Biologic Therapy
- •32.11 Conclusions and Future Directions
- •References
- •33.1 Overview of the Pathogenesis of pSS
- •33.1.1 Initial Steps
- •33.1.1.1 Breach of Self-tolerance
- •33.1.1.2 Activation of Innate Immunity and Interferon Pathways
- •33.1.1.4 Regulation of BAFF Secretion
- •33.1.1.6 Other Cytokines, Chemokines, and Adhesion Molecules Are Involved in the Pathogenesis of the Disease
- •33.1.3 Glandular Hypofunction Rather Than Glandular Destruction
- •33.2 Emerging Therapies
- •33.2.1 Prerequisite for the Development of New Drugs in pSS
- •33.2.1.1 Disease Activity Score
- •33.2.1.2 Selection of Patients
- •33.2.3.1 Inhibition of the Triggering Factors of IFN Activation
- •33.2.3.2 IFN Blockade
- •33.2.3.3 Antagonists of BAFF and APRIL
- •33.2.3.4 B-cell Depletion
- •33.2.3.5 Other B-cell-Targeted Therapy: Other Anti-CD20 and Anti-CD22
- •33.3 Other Therapeutic Perspectives
- •33.3.1 Inhibition of Other Cytokines and Chemokines
- •33.3.3 Gene Therapy
- •33.4 Conclusion
- •References
- •34.1 Introduction
- •34.5 Conclusion
- •References
- •Index
34 Into the Future: Autonomic Neuropathy, MicroRNAs, and Gene Therapy |
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in the treatment of SS. Other pro-inßammatory molecules such as IL-17, IFN-γ(gamma), and IL12 as well as several chemokines have been associated with this disease and inhibitors of these molecules could be expressed locally in the gland [31]. Molecules that block costimulation such as sCTLA4, CD40, and sICAM are reported to be beneÞcial in the treatment of other autoimmune disease and should be explored in SS.
At present the primary treatment of SS and other autoimmune disorders is immune suppression or modulation. However, markers of immune activation do not always correlate with glandular dysfunction suggesting that other nonimmunomodulatory approaches may be useful in preventing the sicca symptoms and restoring gland activity. In addition to therapies that enhance the sensitivity of salivary and lacrimal glands to neurostimulatory signals, approaches that reengineer the gland could be used to restore salivary gland activity. The altered expression and distribution of the water channel, AQP5, have been proposed as a mechanism for xerostomia [32]. Gene transfer technology offers the possibility to reengineer the glands by expressing other water channels such as AQP1 that could aid in ßuid movement from the ductal structure still intact in the gland [33]. A similar approach was taken in developing a treatment for radiationinduced xerostomia and is currently in a Phase 1 study to assess the safety and efÞcacy of adenoviral vector delivery of the AQP1 gene to parotid glands to restore ßuid movement [34].
MiRNA proÞling in minor glands presents not only a new window into the transcriptome of the salivary gland but also the potential for identifying new therapeutic targets. Short hairpin RNAs (shRNAs) which can have the same gene regulatory activity as miRNAs have been incorporated into gene therapy vectors for the treatment of hepatitis B virus as well as local expression in the eye for treatment of age-related macular degeneration [35Ð36]. Similarly as we gain clarity about the role of miRNAs in salivary gland function, those miRNAs differentially expressed in SjšgrenÕs patients or that regulate key pathways in salivary gland function can be studied using current gene transfer vectors. Furthermore, these
miRNAs may offer a new avenue for therapeutic intervention.
34.5Conclusion
Thinking Òoutside the boxÓ allowed SS researchers to focus on dissecting not only immune-mediated but also non-inßammatory disease mechanisms including autonomic neuropathy. Recent developments in science and technology have opened new and unorthodox avenues for studying the complex mechanisms underlying SS and other rheumatic diseases. Exploring miRNAs presents enormous opportunities to reveal critical pathways in the pathogenesis of SS and many other disorders. In the quest for new therapies, gene delivery may have its role as targeted therapeutic strategy for SS and potentially other local and systemic diseases.
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