Journal
AAPS JOURNAL
Volume 16, Issue 4, Pages 714-726Publisher
SPRINGER
DOI: 10.1208/s12248-014-9607-6
Keywords
drug absorption, distribution, metabolism, and excretion (ADME); drug transporters; in vitro-in vivo and in vivo-in vivo extrapolations (IVIVE); LC-MS/MS; quantitative targeted proteomics
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Although global proteomics has shown promise for discovery of many new proteins, biomarkers, protein modifications, and polymorphisms, targeted proteomics is emerging in the proteomics research field as a complement to untargeted shotgun proteomics, particularly when a determined set of low-abundance functional proteins need to be measured. The function and expression of proteins related to drug absorption, distribution, metabolism, and excretion (ADME) such as cytochrome P450 enzymes and membrane transporters are of great interest in biopharmaceutical research. Since the variation in ADME-related protein expression is known to be a major complicating factor encountered during in vitro-in vivo and in vivo-in vivo extrapolations (IVIVE), the accurate quantification of the ADME proteins in complex biological systems becomes a fundamental element in establishing IVIVE for pharmacokinetic predictions. In this review, we provide an overview of relevant methodologies followed by a summary of recent applications encompassing mass spectrometry-based targeted quantifications of membrane transporters.
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