A standardized kit for automated quantitative assessment of candidate protein biomarkers in human plasma.

Bioanalysis. 2015 Dec;7(23):2991-3004. doi: 10.4155/bio.15.222. Epub 2015 Dec 2.
Percy AJ, Mohammed Y, Yang J, Borchers CH.

BACKGROUND: An increasingly popular mass spectrometry-based quantitative approach for health-related research in the biomedical field involves the use of stable isotope-labeled standards (SIS) and multiple/selected reaction monitoring (MRM/SRM). To improve inter-laboratory precision and enable more widespread use of this 'absolute' quantitative technique in disease-biomarker assessment studies, methods must be standardized. Results/methodology: Using this MRM-with-SIS-peptide approach, we developed an automated method (encompassing sample preparation, processing and analysis) for quantifying 76 candidate protein markers (spanning >4 orders of magnitude in concentration) in neat human plasma.
DISCUSSION/CONCLUSION: The assembled biomarker assessment kit - the 'BAK-76' - contains the essential materials (SIS mixes), methods (for acquisition and analysis), and tools (Qualis-SIS software) for performing biomarker discovery or verification studies in a rapid and standardized manner.