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Review Articles

Aldehyde oxidase at the crossroad of metabolism and preclinical screening

ORCID Icon, ORCID Icon, ORCID Icon, ORCID Icon & ORCID Icon
Pages 428-452 | Received 02 Dec 2018, Accepted 07 Sep 2019, Published online: 24 Sep 2019
 

Abstract

Human AOX1 is a member of the mammalian aldehyde oxidase (AOX) family of enzymes and it is an emerging cytosolic enzyme involved in phase I drug-metabolism, bio-transforming a number of therapeutic agents and xenobiotics. The current trend in drug-development is to design molecules which are not recognized and inactivated by CYP450 monooxygenases, the main drug-metabolizing system, to generate novel therapeutic agents characterized by optimal pharmacokinetic and pharmacodynamic properties. Unfortunately, this has resulted in a substantial enrichment in molecules which are recognized and metabolized by AOXs. The observation has raised interest in the generation of tools capable of predicting AOX-dependent drug-metabolism of novel molecules during the early phases of drug development. Such tools are likely to reduce the number of failures occurring at the clinical and late phase of the drug development process. The current review describes different in silico, in vitro and in vivo methods for the prediction of AOX metabolizing ability and focuses on the existing drawbacks and challenges associated with these approaches.

Acknowledgments

The authors would like to thank the Research Office and Biotechnology Research Center of Tabriz University of Medical Sciences.

Disclosure statement

The authors report no conflict of interest.

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