Evaluation of Three-Dimensional Cultured HepG2 Cells in a Nano Culture Plate System: an In Vitro Human Model of Acetaminophen Hepatotoxicity

Overdoses of acetaminophen (paracetamol, N-acetyl-p-aminophenol; APAP) cause severe liver injury, yet there is no common or high throughput in vitro human APAP model. This study examined the characteristics and usefulness of HepG2 cells grown in a nano culture plate (NCP) system, a three-dimensional...

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Main Authors: Kohei Aritomi (Author), Yoichi Ishitsuka (Author), Yoshiro Tomishima (Author), Daisuke Shimizu (Author), Nazuki Abe (Author), Tsuyoshi Shuto (Author), Mitsuru Irikura (Author), Hirofumi Kai (Author), Tetsumi Irie (Author)
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Published: Elsevier, 2014-01-01T00:00:00Z.
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042 |a dc 
100 1 0 |a Kohei Aritomi  |e author 
700 1 0 |a Yoichi Ishitsuka  |e author 
700 1 0 |a Yoshiro Tomishima  |e author 
700 1 0 |a Daisuke Shimizu  |e author 
700 1 0 |a Nazuki Abe  |e author 
700 1 0 |a Tsuyoshi Shuto  |e author 
700 1 0 |a Mitsuru Irikura  |e author 
700 1 0 |a Hirofumi Kai  |e author 
700 1 0 |a Tetsumi Irie  |e author 
245 0 0 |a Evaluation of Three-Dimensional Cultured HepG2 Cells in a Nano Culture Plate System: an In Vitro Human Model of Acetaminophen Hepatotoxicity 
260 |b Elsevier,   |c 2014-01-01T00:00:00Z. 
500 |a 1347-8613 
500 |a 10.1254/jphs.13135FP 
520 |a Overdoses of acetaminophen (paracetamol, N-acetyl-p-aminophenol; APAP) cause severe liver injury, yet there is no common or high throughput in vitro human APAP model. This study examined the characteristics and usefulness of HepG2 cells grown in a nano culture plate (NCP) system, a three-dimensional culture method, as an in vitro human model for APAP-induced hepatotoxicity. The NCP-cultured HepG2 cells showed higher expression of mRNA and protein levels of cytochrome P450 2E1, which metabolizes APAP to a toxic metabolite, APAP-cysteine adduct formation, and higher sensitivity against APAP-induced cell injury compared with conventionally cultured cells. We demonstrated that treatment of APAP in NCP-cultured HepG2 cells shows key mechanistic features of APAP-induced hepatotoxicity, such as decreases in intracellular glutathione and mitochondrial membrane potential, activation of JNK, and cellular injury; and pharmacological agents, such as Cyclosporine A (a mitochondrial permeability transition inhibitor) and SP600125 (a JNK inhibitor), prevented cell injury induced by APAP exposure. In addition, the antidote of APAP-induced hepatotoxicity, N-acetylcysteine, could attenuate cellular injury induced by APAP in NCP-cultured HepG2 cells. We suggest that cellular injury induced by APAP treatment using an NCP-HepG2 system is a useful human model to study mechanisms and screen drug candidates of APAP-induced hepatotoxicity. [Supplementary Figures: available only at http://dx.doi.org/10.1254/jphs.13135FP] Keywords:: acetaminophen, liver injury, HepG2 cell, three-dimensional culture, human model 
546 |a EN 
690 |a Therapeutics. Pharmacology 
690 |a RM1-950 
655 7 |a article  |2 local 
786 0 |n Journal of Pharmacological Sciences, Vol 124, Iss 2, Pp 218-229 (2014) 
787 0 |n http://www.sciencedirect.com/science/article/pii/S1347861319302051 
787 0 |n https://doaj.org/toc/1347-8613 
856 4 1 |u https://doaj.org/article/0773e84e64f64a6f8c4ac3993cb152d1  |z Connect to this object online.