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Xenobiotica
the fate of foreign compounds in biological systems
Volume 52, 2022 - Issue 8: 50th year of the DMDG
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Reviews

Potential application of mass spectrometry imaging in pharmacokinetic studies

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Pages 811-827 | Received 29 Jul 2022, Accepted 29 Aug 2022, Published online: 20 Dec 2022
 

Abstract

  1. Although liquid chromatography-tandem mass spectrometry is the gold standard analytical platform for the quantification of drugs, metabolites, and biomarkers in biological samples, it cannot localise them in target tissues.

  2. The localisation and quantification of drugs and/or their associated metabolites in target tissues is a more direct measure of local drug exposure, biodistribution, efficacy, and regional toxicity compared to the traditional substitute studies using plasma.

  3. Therefore, combining high spatial resolution imaging functionality with the superior selectivity and sensitivity of mass spectrometry into one analytical technique will be a valuable tool for targeted localisation and quantification of drugs, metabolites, and biomarkers in tissues.

  4. Mass spectrometry imaging (MSI) is a tagless analytical technique that allows for the direct localisation and quantification of drugs, metabolites, and biomarkers in biological tissues, and has been used extensively in pharmaceutical research.

  5. The overall goal of this current review is to provide a detailed description of the working principle of MSI and its application in pharmacokinetic studies encompassing absorption, distribution, metabolism, excretion, and toxicity processes, followed by a discussion of the strategies for addressing the challenges associated with the functional utility of MSI in pharmacokinetic studies that support drug development.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

Chukwunonso K. Nwabufo is a recipient of the Canadian Institutes of Health Research Doctoral Award, Ontario Graduate Scholarship, and Leslie Dan Faculty of Pharmacy Deans Fellowship. Omozojie P. Aigbogun is a recipient of the University of Saskatchewan Department of Chemistry Graduate Scholarship and Teacher—Scholar Doctoral Fellowship.

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