Mass spectrometry-based protein assays for in vitro diagnostic testing
1Intrinsic Bioprobes Inc., Tempe, AZ 85284, USA. dnedelkov@intrinsicbio.com
Expert Review of Molecular Diagnostics
|April 4, 2012
Summary
Mass spectrometric immunoassays simplify protein analysis for clinical diagnostics. This Cystatin assay demonstrates improved protein variant detection and quantification for in vitro diagnostic testing.
Area of Science:
- Clinical Chemistry
- Analytical Chemistry
- Biochemistry
Background:
- Mass spectrometry (MS)-based protein assays offer high-throughput capabilities for in vitro diagnostics.
- Assay complexity and cost hinder widespread clinical adoption of MS-based protein analysis.
- Simplified approaches are needed to integrate MS assays into routine clinical laboratories.
Purpose of the Study:
- To review the development and validation of a simplified mass spectrometric immunoassay for Cystatin.
- To highlight the potential of MS immunoassays for protein variant detection and quantification.
- To underscore the implications for biomarker discovery and in vitro diagnostic (IVD) testing.
Main Methods:
- Coupling targeted immunoaffinity separation with mass spectrometry detection.
- Development and validation of a Cystatin mass spectrometric immunoassay.
- Characterization of assay performance for clinical laboratory use.
Main Results:
- Demonstrated successful development and validation of a Cystatin mass spectrometric immunoassay.
- Showcased the capability for protein variant detection and quantification.
- Several MS immunoassays have been implemented as laboratory-developed tests in certified labs.
Conclusions:
- Mass spectrometric immunoassays represent a simplified and powerful tool for clinical diagnostics.
- These assays enhance protein analysis, enabling precise variant detection and quantification.
- The technology holds significant promise for advancing biomarker discovery and IVD development.
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