Liver organoids
Liver organoids, or hepatic organoids, are three-dimensional stem-cell-derived tissues that reproduce the metabolic machinery of the liver, making them a more predictive model for drug clearance and toxicity than flat hepatocyte cultures.
The liver is where most drugs are metabolized and where many of them prove toxic, so a model that keeps its metabolic enzymes active is worth a great deal to drug development. The catch is that conventional liver cells lose those enzymes within days in flat culture. Organoids hold onto them far longer, which is the whole point.
What makes a hepatic organoid useful?
Grown from adult liver stem cells or iPSCs, hepatic organoids retain cytochrome P450 enzyme activity, the family responsible for metabolizing most pharmaceuticals, along with bile handling and albumin production.16 Because they keep functioning over weeks rather than days, they can model repeated-dose and chronic toxicity, not just a single acute exposure. That sustained function is what lets a screen catch the slow toxicity that flat cultures miss entirely.
How is liver function measured?
Hepatic organoids are read metabolically, not electrically. Microfluidic biosensors track glucose consumption, lactate production, and urea and albumin secretion in real time. A toxic compound shows up as a measurable shift in these outputs, often before any visible damage, so the readout doubles as an early-warning signal. The model and its readout are listed in the organ-model directory and feed the drug-discovery pipeline.
Frequently asked questions
Why use a liver organoid instead of standard liver cells?
Because organoids retain drug-metabolizing enzymes and function for weeks, while flat hepatocyte cultures lose that activity within days, making organoids far more predictive of real toxicity.
What does a liver organoid actually test?
Drug metabolism and toxicity: how a compound is broken down and whether it damages liver tissue, including slow effects that only appear over repeated dosing.
How is a liver organoid measured?
Through metabolic sensors that track glucose, lactate, urea, and albumin, since liver tissue signals chemically rather than electrically.
References
- Huch M, et al. Long-term culture of genome-stable bipotent stem cells from adult human liver. Cell. 2015;160(1-2):299-312. doi:10.1016/j.cell.2014.11.050. Accessed 2026-06-12.
- Clevers H. Modeling development and disease with organoids. Cell. 2016;165(7):1586-1597. doi:10.1016/j.cell.2016.05.082. Accessed 2026-06-12.