Research spotlight: stereoselective analysis of drugs and metabolites by the Chromatographic and Electrophoretic Analysis Center group

Significance and challenges of stereoselectivity assessing methods in drug metabolism

Stereoselectivity in drug metabolism can not only influence the pharmacological activities, tolerability, safety, and bioavailability of drugs directly, but also cause different kinds of drug-drug interactions. Thus, assessing stereoselectivity in drug metabolism is of great significance for pharmaceutical research and development (R&D) and rational use in clinic. Although there are various methods available for assessing stereoselectivity in drug metabolism, many of them have shortcomings. The indirect method of chromatographic methods can only be applicable to specific samples with functional groups to be derivatized or form complex with a chiral selector, while the direct method achieved by chiral stationary phases (CSPs) is expensive. As a detector of chromatographic methods, mass spectrometry (MS) is highly sensitive and specific, whereas the matrix interference is still a challenge to overcome. In addition, the use of nuclear magnetic resonance (NMR) and immunoassay in chiral analysis are worth noting. This review presents several typical examples of drug stereoselective metabolism and provides a literature-based evaluation on current chiral analytical techniques to show the significance and challenges of stereoselectivity assessing methods in drug metabolism.

Young Investigator

Supervisor’s supporting comments

Keyller B Borges carried out his MS and PhD studies in toxicology under my supervision. During the time he spent in my laboratory, he worked on the development of analytical methods and studied the biotransformation of several drugs by fungi. Characteristics such as dedication, ability, initiative and dynamism had been the basis for the success of his projects developed under my supervision, resulting in several publications in prestigious periodics of the area. Therefore, I consider Dr Keyller highly capable for the development of activities in the area of bioanalysis.