Journal
FRONTIERS IN PHARMACOLOGY
Volume 12, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fphar.2021.667010
Keywords
drug-drug interaction; microphysiological systems; liver and heart integration; ketoconazole; cisapride; hiPSC-derived cells
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Funding
- NIH [UH3 TR000487, P30 DK026743, 1S10RR026866-01]
- Novartis Foundation for Medical Biological Research [15B086]
- Fondazione Ettore e Valeria Rossi
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The study focuses on the integration of hiPSC-based liver and cardiac MPSs to study drug-drug interaction, using cisapride and ketoconazole as an example. The results demonstrate how ketoconazole inhibits the metabolic conversion of cisapride in the liver MPS, leading to arrhythmia in the cardiac MPS, highlighting the potential of this integrated approach for screening drug interactions and assessing drug efficacy and toxicity in the same genetic background.
Three-dimensional (3D) microphysiological systems (MPSs) mimicking human organ function in vitro are an emerging alternative to conventional monolayer cell culture and animal models for drug development. Human induced pluripotent stem cells (hiPSCs) have the potential to capture the diversity of human genetics and provide an unlimited supply of cells. Combining hiPSCs with microfluidics technology in MPSs offers new perspectives for drug development. Here, the integration of a newly developed liver MPS with a cardiac MPS-both created with the same hiPSC line-to study drug-drug interaction (DDI) is reported. As a prominent example of clinically relevant DDI, the interaction of the arrhythmogenic gastroprokinetic cisapride with the fungicide ketoconazole was investigated. As seen in patients, metabolic conversion of cisapride to non-arrhythmogenic norcisapride in the liver MPS by the cytochrome P450 enzyme CYP3A4 was inhibited by ketoconazole, leading to arrhythmia in the cardiac MPS. These results establish integration of hiPSC-based liver and cardiac MPSs to facilitate screening for DDI, and thus drug efficacy and toxicity, isogenic in the same genetic background.
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