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Studying multiple protein profiles over time to assess biomarker validity.
Raj S Kasthuri1, Michael R Verneris, Hassan N Ibrahim
1University of Minnesota, Department of Medicine, MMC 480, 420 Delaware Street SE, Minneapolis, MN 55455, USA. kasth001@umn.edu
Expert Review of Proteomics
|August 12, 2006
Summary
Serial protein profiling using a rapid extraction method enhances disease biomarker discovery. Analyzing individual baseline samples minimizes variability, improving marker validation for clinical use.
Area of Science:
- Biochemistry
- Proteomics
- Biomarker Discovery
Background:
- Protein profile analysis is crucial for identifying disease biomarkers.
- Current methods often rely on matrix-assisted laser desorption/ionization time-of-flight mass spectrometry.
- Interindividual variability can obscure disease-specific protein changes.
Purpose of the Study:
- To illustrate the value of serial protein profiling for biomarker discovery.
- To highlight a rapid protein extraction method for this purpose.
- To address challenges in biomarker validation for clinical settings.
Main Methods:
- Focus on analyzing sequential samples from the same individual.
- Utilizing a rapid protein extraction technique.
- Comparing individual samples against their own baseline.
Main Results:
- Identified numerous protein changes significantly correlated with disease.
- Demonstrated the effectiveness of serial sampling in overcoming interindividual variability.
- Showcased the potential of the rapid extraction method.
Conclusions:
- Serial protein profiling is a valuable strategy for robust biomarker discovery.
- Analyzing intraindividual changes optimizes biomarker identification and validation.
- Rapid protein extraction facilitates high-throughput analysis for clinical application.