Related Experiment Video
Updated: Jun 8, 2026

Mouse Model of Metabolic Dysfunction-Associated Steatotic Liver Disease with Fibrosis
Published on: July 18, 2025
Drug-metabolizing enzyme, transporter, and nuclear receptor genetically modified mouse models
Xi-Ling Jiang1, Frank J Gonzalez, Ai-Ming Yu
1Department of Pharmaceutical Sciences, University at Buffalo, The State University of New York, USA.
Abstract:
Determining the in vivo significance of a specific enzyme, transporter, or xenobiotic receptor in drug metabolism and pharmacokinetics may be hampered by gene multiplicity and complexity, levels of expression, and interaction between various components involved. The development of knockout (loss-of-function) and transgenic (gain-of-function) mouse models opens the door to the improved understanding of gene function in a whole-body system. There is also growing interest in the development of humanized mice to overcome species differences in drug metabolism and disposition. This review, therefore, aims to summarize and discuss some successful examples of drug-metabolizing enzyme, transporter, and nuclear-receptor genetically modified mouse models. These genetically modified mouse models have been proven as invaluable models for understanding in vivo function of drug-metabolizing enzymes, transporters, and xenobiotic receptors in drug metabolism and transport, as well as predicting potential drug-drug interaction and toxicity in humans. Nevertheless, concerns remain about interpretation of data obtained from such genetically modified mouse models, in which the expression of related genes is altered significantly.
Insights
Genetically modified mouse models, including knockout and humanized mice, are crucial for understanding drug metabolism and predicting interactions. These models aid in studying drug-metabolizing enzymes, transporters, and receptors in vivo.
Area of Science:
- Pharmacology and Toxicology
- Genetics and Genomics
Background:
- Investigating the in vivo roles of drug-metabolizing enzymes, transporters, and xenobiotic receptors is complex due to gene multiplicity and interactions.
- Traditional methods face challenges in fully elucidating gene function in drug metabolism and pharmacokinetics.
- The development of genetically modified mouse models offers a powerful approach to overcome these limitations.
Purpose of the Study:
- To review successful examples of genetically modified mouse models for drug metabolism research.
- To discuss the utility of knockout, transgenic, and humanized mice in understanding gene function.
- To highlight the application of these models in predicting drug-drug interactions and toxicity.
Main Methods:
- Review of literature on genetically modified mouse models.
- Analysis of successful applications in studying drug-metabolizing enzymes, transporters, and nuclear receptors.
- Discussion of knockout (loss-of-function) and transgenic (gain-of-function) mouse models.
- Consideration of humanized mouse models for interspecies comparisons.
Main Results:
- Genetically modified mouse models provide invaluable insights into the in vivo function of key drug metabolism components.
- These models facilitate the study of drug metabolism, transport, and the impact of xenobiotic receptors.
- Successful examples demonstrate their utility in predicting drug-drug interactions and human toxicity.
Conclusions:
- Genetically modified mouse models are essential tools for advancing the understanding of drug metabolism and pharmacokinetics.
- Humanized mice are particularly promising for bridging species differences in drug disposition.
- Careful interpretation of data is necessary due to potential alterations in gene expression within these models.
Related Concept Videos
Mouse Models of Cancer Study
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
Mouse Models of Cancer Study
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
Pharmacogenetics of Drug Metabolism: Overview
In-vitro Mutagenesis
Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase

