Aldehyde oxidase mediated drug metabolism: an underpredicted obstacle in drug discovery and development / Siva Nageswara Rao Gajula, Tanaaz Navin Nathani, Rashmi Madhukar Patil, Sasikala Talari, Rajesh Sonti

Abstract Aldehyde oxidase (AO) has garnered curiosity as a non-CYP metabolizing enzyme in drug development due to unexpected consequences such as toxic metabolite generation and high metabolic clearance resulting in the clinical failure of new drugs. Therefore, poor AO mediated clearance prediction in preclinical nonhuman species remains a significant obstacle in developing novel drugs. Various isoforms of AO, such as AOX1, AOX3, AOX3L1 , and AOX4 exist across species, and different AO activity among humans influences the AO mediated drug metabolism. Therefore, carefully considering the unique challenges is essential in developing successful AO substrate drugs. The in vitro to in vivo extrapolation underpredicts AO mediated drug clearance due to the lack of reliable representative animal models, substrate-specific activity, and the discrepancy between absolute concentration and activity. An in vitro tool to extrapolate in vivo clearance using a yard-stick approach is provided to address the underprediction of AO mediated drug clearance. This approach uses a range of well-known AO drug substrates as calibrators for qualitative scaling new drugs into low, medium, or high clearance category drugs. So far, in vivo investigations on chimeric mice with humanized livers (humanized mice) have predicted AO mediated metabolism to the best extent. This review addresses the critical aspects of the drug discovery stage for AO metabolism studies, challenges faced in drug development, approaches to tackle AO mediated drug clearance’s underprediction, and strategies to decrease the AO metabolism of drugs.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:54

Enthalten in:

Drug metabolism reviews - 54(2022), 4, Seite 427-448

Sprache:

Englisch

Beteiligte Personen:

Gajula, Siva Nageswara Rao [VerfasserIn]
Nathani, Tanaaz Navin [VerfasserIn]
Patil, Rashmi Madhukar [VerfasserIn]
Talari, Sasikala [VerfasserIn]
Sonti, Rajesh [VerfasserIn]

Links:

FID Access [lizenzpflichtig]

Themen:

Aldehyde oxidase
Drug discovery and development
Drug metabolism
Humanized mice
In vitro–in vivocorrelation
Metabolic stability
Yard-stick approach

Umfang:

1 Online-Ressource (22 p)

doi:

10.1080/03602532.2022.2144879

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

KFL011123486