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Profiling the autoantibody repertoire by serological antigen selection
V Somers1, C Govarts, N Hellings
1Hasselt University, Biomedical Research Institute, and Transnationale Universiteit Limburg, School of Life Sciences, Agoralaan, Building A, B-3590 Diepenbeek, Belgium. veerle.somers@uhasselt.be
Journal of Autoimmunity
|November 1, 2005
Summary
Identifying disease-related autoantigens is key for autoimmune disease therapies. We optimized the serological antigen selection (SAS) method to efficiently find multiple sclerosis (MS)-specific targets from patient samples.
Area of Science:
- Immunology
- Molecular Biology
- Neuroscience
Background:
- Identifying autoantigens is critical for developing targeted therapies for autoimmune diseases.
- Pathogenic T- and B-cell responses target specific autoantigens in autoimmune conditions.
- The humoral immune response's targets are key to understanding disease mechanisms.
Purpose of the Study:
- To identify immunogenic targets recognized by the humoral immune response in multiple sclerosis (MS).
- To optimize the serological antigen selection (SAS) method for efficient autoantigen discovery.
- To streamline the process of identifying MS-specific candidate antigens.
Main Methods:
- Utilized a novel molecular approach: serological antigen selection (SAS).
- Employed phage display technology with a cDNA expression library.
- Performed selections using pooled MS cerebrospinal fluid (CSF) samples and patient immunoglobulin G (IgG).
Main Results:
- Cloned a cDNA repertoire from an MS patient using pVI phage display vectors.
- Successfully established methods for enriching MS-specific candidate antigens.
- Demonstrated an optimized SAS procedure for streamlining autoantigen identification.
Conclusions:
- The serological antigen selection (SAS) method is a powerful tool for identifying autoantigens.
- The optimized SAS procedure enhances the efficiency of discovering MS-specific antigens.
- SAS has broad applicability for investigating the autoimmune repertoire in various diseases.