Related Experiment Videos
Circulating immune complexes in patients with house-dust-mite-sensitive bronchial asthma
Clinical Allergy
|March 1, 1984
Summary
Circulating immune complexes (CIC) are elevated in house-dust-mite-sensitive asthma patients. While CIC levels may decrease with immunotherapy, they do not correlate with mite-specific IgG antibodies.
Area of Science:
- Immunology
- Allergy and Asthma Research
Background:
- House-dust-mite sensitivity is a common trigger for bronchial asthma.
- Circulating immune complexes (CIC) are implicated in allergic inflammatory diseases.
Purpose of the Study:
- To investigate the presence and significance of CIC in patients with house-dust-mite-sensitive asthma.
- To evaluate the relationship between CIC, immunotherapy, and mite-specific IgG antibodies.
Main Methods:
- Sera from 40 asthmatic patients and 15 controls were analyzed for CIC.
- Sensitive assays used included Clq solid-phase radioimmunoassay (Clq-SP) and monoclonal rheumatoid factor solid-phase radioimmunoassay (mRF-SP).
- CIC levels were compared between asthmatic patients and controls, and before/after immunotherapy.
Main Results:
- Asthmatic patients exhibited significantly higher mean levels of Clq-reactive materials compared to controls.
- No significant difference in CIC levels was observed between patients treated with Dermatophagoides farinae immunotherapy and those not treated.
- A tendency for CIC levels to decrease during immunotherapy was noted in eight patients.
- The presence of CIC showed no correlation with mite-specific IgG antibody levels.
Conclusions:
- Elevated CIC are present in house-dust-mite-sensitive asthma.
- CIC levels in these patients are not directly associated with mite-specific IgG antibody levels.
- While immunotherapy may reduce CIC, their presence is not solely dependent on mite-specific IgG antibodies.