3D spheroid cultures improve the metabolic gene expression profiles of HepaRG cells.

Abstract:

:3D (three-dimensional) cultures are considered to be an effective method for toxicological studies; however, little evidence has been reported whether 3D cultures have an impact on hepatocellular physiology regarding lipid or glucose metabolism. In the present study, we conducted physiological characterization of hepatoma cell lines HepG2 and HepaRG cells cultured in 3D conditions using a hanging drop method to verify the effect of culture environment on cellular responses. Apo (Apolipoprotein)B as well as albumin secretion was augmented by 3D cultures. Expression of genes related to not only drug, but also glucose and lipid metabolism were significantly enhanced in 3D cultured HepaRG spheroids. Furthermore, mRNA levels of CYP (cytochrome P450) enzymes following exposure to corresponding inducers increased under the 3D condition. These data suggest that this simple 3D culture system without any special biomaterials can improve liver-specific characteristics including lipid metabolism. Considering that the system enables high-throughput assay, it may become a powerful tool for compound screening concerning hepatocellular responses in order to identify potential drugs.

journal_name

Biosci Rep

journal_title

Bioscience reports

authors

Takahashi Y,Hori Y,Yamamoto T,Urashima T,Ohara Y,Tanaka H

doi

10.1042/BSR20150034

subject

Has Abstract

pub_date

2015-05-07 00:00:00

issue

3

eissn

0144-8463

issn

1573-4935

pii

BSR20150034

journal_volume

35

pub_type

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