L773:1096 0929
Sökning: L773:1096 0929 > (2015-2019) > MicroRNA-122 :
MicroRNA-122 : a novel hepatocyte-enriched in vitro marker of drug-induced cellular toxicity
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- Kia, Richard (författare)
- Univ Liverpool, Dept Mol & Clin Pharmacol, MRC Ctr Drug Safety Sci, Liverpool, England
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- Kelly, Lorna (författare)
- Univ Liverpool, Dept Mol & Clin Pharmacol, England / Stem Cells Safer Med, London, England
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- Sison-Young, Rowena L. C. (författare)
- Univ Liverpool, Dept Mol & Clin Pharmacol, MRC Ctr Drug Safety Sci, Liverpool, England
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- (creator_code:org_t)
- 2014-12-18
- 2015
- Engelska.
- Ingår i: Toxicological Sciences. - : Oxford University Press. - 1096-6080 .- 1096-0929. ; 144:1, s. 173-185
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- Emerging hepatic models for the study of drug-induced toxicity include pluripotent stem cell-derived hepatocyte-like cells (HLCs) and complex hepatocyte-non-parenchymal cellular coculture to mimic the complex multicellular interactions that recapitulate the niche environment in the human liver. However, a specific marker of hepatocyte perturbation, required to discriminate hepatocyte damage from non-specific cellular toxicity contributed by non-hepatocyte cell types or immature differentiated cells is currently lacking, as the cytotoxicity assays routinely used in in vitro toxicology research depend on intracellular molecules which are ubiquitously present in all eukaryotic cell types. In this study, we demonstrate that microRNA-122 (miR-122) detection in cell culture media can be used as a hepatocyte-enriched in vitro marker of drug-induced toxicity in homogeneous cultures of hepatic cells, and a cell-specific marker of toxicity of hepatic cells in heterogeneous cultures such as HLCs generated from various differentiation protocols and pluripotent stem cell lines, where conventional cytotoxicity assays using generic cellular markers may not be appropriate. We show that the sensitivity of the miR-122 cytotoxicity assay is similar to conventional assays that measure lactate dehydrogenase activity and intracellular adenosine triphosphate when applied in hepatic models with high levels of intracellular miR-122, and can be multiplexed with other assays. MiR-122 as a biomarker also has the potential to bridge results in in vitro experiments to in vivo animal models and human samples using the same assay, and to link findings from clinical studies in determining the relevance of in vitro models being developed for the study of drug-induced liver injury.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinsk bioteknologi -- Medicinsk bioteknologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Medical Biotechnology -- Medical Biotechnology (hsv//eng)
Nyckelord
- bridging biomarker
- cell-specific biomarker
- cytotoxicity
- drug-induced liver injury
- hepatocytes
- in vitro model
- microRNA
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- ref (ämneskategori)
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