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Accurate peptide quantification supports the transfer of MS-based quantitative proteomics to the clinic

VÉRONIQUE MAINFROID

Proteomics Product Manager, Eurogentec S.A.

KEYWORDS: Quantitative proteomic, AAA-MS, peptide accurate quantification, SIL-peptide, MRM.

QUANTITATIVE PROTEOMIC FOR CLINIC DIAGNOSTIC
Despite the identification and validation of numerous potential biomarkers for medical diagnostic, only few of them actually progressed towards clinical use. ELISA remaining the gold standard to quantify proteins, it is often limited to the lack of availability of antibodies with high specificity. The development of more direct detection methods aims at solving this intrinsic issue linked with immunoassays. Indeed, over the last decade, mass spectrometry (MS)-based quantitative proteomics has gained considerable interest (1), as it is the most promising technology