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Conglutinin microtiter plate ELISA system for detecting circulating immune complexes
Journal of Neuroimmunology
|June 1, 1984
Summary
A novel conglutinin enzyme-linked immunosorbent assay (ELISA) was developed to detect immune complexes in patients. This sensitive assay shows high positivity rates in neurological conditions like multiple sclerosis and amyotrophic lateral sclerosis.
Area of Science:
- Immunology
- Clinical Chemistry
- Neurology
Background:
- Circulating immune complexes (CICs) are implicated in various autoimmune and neurological diseases.
- Accurate measurement of CICs is crucial for diagnosis and monitoring disease progression.
- Existing methods for CIC detection may lack sensitivity or specificity.
Purpose of the Study:
- To develop and validate a new, sensitive enzyme-linked immunosorbent assay (ELISA) for quantifying conglutinin-bound CICs.
- To assess the diagnostic utility of this novel ELISA in patients with neurological disorders.
Main Methods:
- Development of a microtiter plate-based conglutinin ELISA.
- Determination of assay sensitivity using aggregated human IgG standards (0.2–3.2 µg equivalents).
- Application of the ELISA to serum samples from 21 healthy controls and 80 neurological patients.
Main Results:
- The developed conglutinin ELISA demonstrated high sensitivity, quantifying CICs in the range of 0.2–3.2 µg aggregated human IgG equivalents.
- Elevated levels of CICs were detected in a significant proportion of neurological patients.
- High positivity rates were observed in patients diagnosed with multiple sclerosis and amyotrophic lateral sclerosis.
Conclusions:
- The novel conglutinin ELISA is a sensitive and potentially valuable tool for detecting circulating immune complexes.
- This assay may aid in the diagnosis and understanding of the immunopathology of neurological diseases such as multiple sclerosis and amyotrophic lateral sclerosis.