[Determination of circulating immune complexes by immunoenzyme method]

Area of Science:

• Immunology
• Biochemistry
• Clinical Chemistry

Background:

• Circulating immune complexes (CIC) are implicated in various diseases.
• Accurate measurement of CICs is crucial for diagnosis and monitoring.
• Existing methods for CIC detection have limitations.

Purpose of the Study:

• To develop and validate a novel enzyme immunoassay (EIA) for quantifying CICs in human serum.
• To assess the efficacy of the EIA in detecting CICs formed by different immunoglobulin classes.
• To compare the performance of the proposed EIA with established methods.

Main Methods:

• Enzyme immunoassay (EIA) utilizing Staphylococcus aureus protein for plate sensitization.
• Optimization of S. aureus protein concentration for optimal plate sensitization (1-5 µg/ml).
• Comparative analysis of EIA results with established methods (Haskova et al., Digeon et al.).

Main Results:

• The developed EIA effectively measures CICs in human blood serum.
• The method is capable of detecting CICs involving various immunoglobulin classes.
• Results obtained by the proposed EIA demonstrated good correlation with two other established methods.

Conclusions:

• The proposed enzyme immunoassay provides a reliable and accurate method for measuring circulating immune complexes.
• This EIA offers a valuable tool for clinical diagnostics and research involving CICs.
• The method's ability to detect different immunoglobulin classes enhances its utility.