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Bioluminescence-enhanced immunoassays: an ultrasensitive method
Journal of the International Federation of Clinical Chemistry
|March 9, 1993
Summary
This study introduces ultrasensitive bioluminescence immunoassays for detecting peptides and proteins, demonstrating high accuracy for total immunoglobulin E (IgE) in human serum. The method offers a wide detection range and reliable precision for clinical diagnostics.
Area of Science:
- Biochemistry
- Immunology
- Analytical Chemistry
Background:
- Enzyme immunoassays are crucial for quantifying biomarkers.
- Accurate measurement of proteins and peptides, like immunoglobulin E (IgE), is vital for diagnosing allergic diseases and monitoring immune status.
Purpose of the Study:
- To demonstrate ultrasensitive bioluminescence immunoassays for peptide and protein determination.
- To evaluate the performance of this assay for quantifying total IgE in human serum.
Main Methods:
- Development and application of ultrasensitive bioluminescence immunoassays.
- Enzyme immunological determination of total IgE in human serum samples.
- Characterization of standard curve usable range and assay precision (intra- and interassay coefficients of variation).
Main Results:
- The developed bioluminescence immunoassay provides ultrasensitive detection of peptides and proteins.
- A usable standard curve range from 5 pg/L to 5000 pg/L was established for total IgE.
- Intra- and interassay coefficients of variation were comparable to established chromogenic enzyme immunoassays, indicating high reliability.
Conclusions:
- Ultrasensitive bioluminescence immunoassays are effective for quantifying total IgE in human serum.
- This assay offers a broad dynamic range and excellent precision, making it suitable for clinical applications.
- Bioluminescence immunoassays represent a sensitive and reliable alternative to existing immunoassay methods.