Drug-Induced Liver Injury Organ-on-Chip Models
Source Meyer et al., 2024 · University of Michigan, Ann Arbor · 10.1016/j.gastha.2024.08.004
Abstract
This protocol describes the differentiation of human iPSCs into liver organoids (HLOs) and their culture on Curio Barrier Liver Chips (Curiochips) to model drug-induced liver injury. The system maintains hepatocyte function and CYP450 metabolic activity for up to 28 days and enables rapid detection of hepatotoxicity at physiologically relevant drug concentrations, offering a high-throughput platform for DILI risk assessment in drug development.
Protocol overview
35 steps across 9 phases
- a Seed iPSCs on Matrigel-coated plates
- b Treat iPSCs with Activin A for 3 days
- c Treat iPSCs with FGF4 for 3 additional days
- a Embed DE spheroids in Matrigel droplets
- b Treat embedded spheroids with retinoic acid for 4 days
- c Culture spheroids in hepatocyte growth media for 16 days
- a Wash organoids to remove Matrigel
- b Dissociate organoids with trypsin
- c Count cells for downstream seeding
- a Prepare hydrogel cell suspension
- b Load cell-containing hydrogel into middle channel
- c Load acellular hydrogel into side 1 channel
- d Load culture medium into side 2 channel
- e Establish media gradient for osmotically driven flow
- a Culture HLO-seeded Curiochips with routine media changes
- b Collect media for albumin secretion assessment
- c Extract RNA for CYP450 gene expression analysis
- a Prepare substrate-containing media
- b Incubate Curiochips with substrates
- c Collect media for substrate analysis
- d Stop reactions with cold methanol
- e Analyze samples by LC/MS/MS
- a Pre-treat Curiochips and establish baseline
- b Treat Curiochips with DILI-causing agents
- c Collect media for ALT activity and albumin quantification
- d Measure alanine transaminase (ALT) activity
- a Prepare definitive endoderm spheroids on day 7
- b Load acellular hydrogel and culture medium
- c Complete hepatocyte maturation on chip
- d Assess in situ differentiation and perform DILI studies
- a Prepare Curiochips for imaging
- b Stain for hepatocyte and stellate cell markers
- c Stain for neutral lipid droplets (DILI injury marker)
- d Acquire high-content confocal images
- e Quantify biomarker intensity
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Attribution
This SOP was written by Organthis based on the published method in Meyer et al., 2024. Once the originating laboratory has confirmed it, the SOP is marked Verified.
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