Current Trends in Validating Antibody Specificities for ELISpot by Western Blotting
Biji T Kurien1,2, R Hal Scofield3,4,5
1Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma, OK, USA. biji-kurien@omrf.org.
The enzyme-linked immunospot (ELISpot) assay detects immune cells and secretions. Western blotting validates antibodies for ELISpot, ensuring accurate detection of specific proteins and immune responses.
Area of Science:
- Immunology
- Biotechnology
Background:
- The enzyme-linked immunospot (ELISpot) assay is a sensitive method for detecting immunoglobulin and antigen-specific antibody-secreting cells.
- ELISpot assays can measure the biological activity and immunological secretions from immune cells, including cytokines.
Purpose of the Study:
- To highlight the importance of antibody specificity in ELISpot assays.
- To introduce western blotting as a crucial method for validating antibodies used in ELISpot.
Main Methods:
- ELISpot assay principle involving antigen-antibody interactions.
- Western blotting for immunodetection of proteins, including low abundance ones.
- Antibody validation techniques such as siRNA knockdown and peptide inhibitors.
Main Results:
- Western blotting provides simultaneous resolution of multiple antigens.
- It enables the detection of low abundance proteins.
- Multiple immunoblotting methods are available for antibody validation in ELISpot.
Conclusions:
- Antibody specificity is critical for accurate ELISpot results.
- Western blotting is a powerful tool for validating antibodies used in ELISpot assays.
- Availability of various immunoblotting techniques enhances ELISpot assay reliability.
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