Related Experiment Video
Updated: Jun 25, 2026
09:27
Multicellular Human Alveolar Model Composed of Epithelial Cells and Primary Immune Cells for Hazard Assessment
Published on: May 6, 2020
Humoral immunologic abnormalities in workers exposed to asbestos cement dust
The Journal of Allergy and Clinical Immunology
|November 1, 1983
Summary
Asbestos exposure in workers is linked to B cell hyperactivity, evidenced by elevated immunoglobulins like IgG and IgM correlating with radiographic changes. However, autoantibodies and immune complexes showed no direct link to asbestos-related lung disease.
Area of Science:
- Occupational Health
- Immunology
- Pulmonary Medicine
Background:
- Asbestos cement dust exposure is a known risk factor for lung disease.
- Immunological alterations may occur following occupational exposure to asbestos.
Purpose of the Study:
- To investigate immunological changes in workers exposed to asbestos cement dust.
- To correlate immunologic findings with chest radiographic changes.
Main Methods:
- Serum samples from 144 asbestos-exposed workers were analyzed.
- Tests included antinuclear antibodies (ANA), rheumatoid factor (RF), immunoglobulins (IgG, IgM), and immune complexes (IC).
- Results were compared with chest X-ray findings.
Main Results:
- A high prevalence of polyclonal hypergammaglobulinemia was observed.
- Elevated IgG and IgM levels showed a significant association with radiographic classifications.
- Increased ANA and IC prevalence did not correlate with radiographic changes.
Conclusions:
- Findings suggest B cell hyperactivity in asbestos-exposed workers.
- Autoantibody production and immune complexes are unlikely directly involved in asbestos-related lung disease pathogenesis.
Related Concept Videos
01:36Humoral Immune Responses
Overview
01:29Pulmonary Tuberculosis I
Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
01:31Pulmonary Tuberculosis III
Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
The first classification is based on the development of the disease, and it includes the following categories:
The first classification is based on the development of the disease, and it includes the following categories:
01:19Hypersensitivity Reactions: Immune-Complex Reactions
Type III hypersensitivity reactions occur when antigen–antibody complexes form and activate the complement system. Normally, these complexes help the clearance of antigens by phagocytes and red blood cells. However, when large numbers of immune complexes are present, they can deposit in tissues—particularly in the walls of blood vessels—leading to inflammation and tissue injury. These deposits trigger complement activation and neutrophil recruitment, resulting in serum sickness, a systemic...