Reference : 3D organotypic cultures of human HepaRG cells: a tool for in vitro toxicity studies.
Scientific journals : Article
Life sciences : Biochemistry, biophysics & molecular biology
http://hdl.handle.net/10993/32231
3D organotypic cultures of human HepaRG cells: a tool for in vitro toxicity studies.
English
Gunness, Patrina [> >]
Mueller, Daniel [> >]
Shevchenko, Valery [> >]
Heinzle, Elmar [> >]
Ingelman-Sundberg, Magnus [> >]
Noor, Fozia mailto [Saarland University > Biochemical Engineering]
2013
Toxicological sciences : an official journal of the Society of Toxicology
133
1
67-78
Yes (verified by ORBilu)
International
1096-0929
1096-0929
United States
[en] Acetaminophen/toxicity ; Albumins/metabolism ; Cell Culture Techniques/methods ; Cell Line, Tumor ; Chromans/toxicity ; Cytochrome P-450 Enzyme System/biosynthesis/metabolism ; Cytochrome P450 Family 2 ; Hepatocytes/drug effects/enzymology/metabolism ; High-Throughput Screening Assays ; Humans ; Liver/drug effects/enzymology/metabolism ; P-Glycoproteins/metabolism ; Spheroids, Cellular/drug effects/enzymology/metabolism ; Thiazolidinediones/toxicity ; Toxicity Tests, Acute/methods ; Urea/metabolism
[en] Drug-induced human hepatotoxicity is difficult to predict using the current in vitro systems. In this study, long-term 3D organotypic cultures of the human hepatoma HepaRG cell line were prepared using a high-throughput hanging drop method. The organotypic cultures were maintained for 3 weeks and assessed for (1) liver specific functions, including phase I enzyme and transporter activities, (2) expression of liver-specific proteins, and (3) responses to three drugs (acetaminophen, troglitazone, and rosiglitazone). Our results show that the organotypic cultures maintain high liver-specific functionality during 3 weeks of culture. The immunohistochemistry analyses illustrate that the organotypic cultures express liver-specific markers such as albumin, CYP3A4, CYP2E1, and MRP-2 throughout the cultivation period. Accordingly, the production rates of albumin and glucose, as well as CYP2E1 activity, were significantly higher in the 3D versus the 2D cultures. Toxicity studies show that the organotypic cultures are more sensitive to acetaminophen- and rosiglitazone-induced toxicity but less sensitive to troglitazone-induced toxicity than the 2D cultures. Furthermore, the EC50 value (2.7mM) for acetaminophen on the 3D cultures was similar to in vivo toxicity. In summary, the results from our study suggest that the 3D organotypic HepaRG culture is a promising in vitro tool for more accurate assessment of acute and also possibly for chronic drug-induced hepatotoxicity.
http://hdl.handle.net/10993/32231

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