Dr Jennifer May Jennifer2.May@uwe.ac.uk
Senior Lecturer in Biomedical Science
Development of a novel, physiologically relevant cytotoxicity model: Application to the study of chemotherapeutic damage to mesenchymal stromal cells
May, Jennifer E.; Morse, H. Ruth; Xu, Jinsheng; Donaldson, Craig
Authors
Ruth Morse Ruth.Morse@uwe.ac.uk
Associate Professor in Biomedical Sciences
Jinsheng Xu
Craig Donaldson
Abstract
There is an increasing need for development of physiologically relevant in-vitro models for testing toxicity, however determining toxic effects of agents which undergo extensive hepatic metabolism can be particularly challenging. If a source of such metabolic enzymes is inadequate within a model system, toxicity from prodrugs may be grossly underestimated. Conversely, the vast majority of agents are detoxified by the liver, consequently toxicity from such agents may be overestimated.In this study we describe the development of a novel in-vitro model, which could be adapted for any toxicology setting. The model utilises HepG2 liver spheroids as a source of metabolic enzymes, which have been shown to more closely resemble human liver than traditional monolayer cultures. A co-culture model has been developed enabling the effect of any metabolised agent on another cell type to be assessed. This has been optimised to enable the study of damaging effects of chemotherapy on mesenchymal stem cells (MSC), the supportive stem cells of the bone marrow. Several optimisation steps were undertaken, including determining optimal culture conditions, confirmation of hepatic P450 enzyme activity and ensuring physiologically relevant doses of chemotherapeutic agents were appropriate for use within the model. The developed model was subsequently validated using several chemotherapeutic agents, both prodrugs and active drugs, with resulting MSC damage closely resembling effects seen in patients following chemotherapy.Minimal modifications would enable this novel co-culture model to be utilised as a general toxicity model, contributing to the drive to reduce animal safety testing and enabling physiologically relevant in-vitro study. © 2012 Elsevier Inc.
Citation
May, J. E., Morse, H. R., Xu, J., & Donaldson, C. (2012). Development of a novel, physiologically relevant cytotoxicity model: Application to the study of chemotherapeutic damage to mesenchymal stromal cells. Toxicology and Applied Pharmacology, 263(3), 374-389. https://doi.org/10.1016/j.taap.2012.07.013
Journal Article Type | Article |
---|---|
Publication Date | Sep 15, 2012 |
Deposit Date | Jan 29, 2013 |
Journal | Toxicology and Applied Pharmacology |
Print ISSN | 0041-008X |
Electronic ISSN | 1096-0333 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 263 |
Issue | 3 |
Pages | 374-389 |
DOI | https://doi.org/10.1016/j.taap.2012.07.013 |
Keywords | toxicity testing, in vitro model, chemotherapy, HepG2 spheroids, mesenchymal stem cell |
Public URL | https://uwe-repository.worktribe.com/output/954577 |
Publisher URL | http://dx.doi.org/10.1016/j.taap.2012.07.013 |
Additional Information | Additional Information : Available online first 24 July 2012 |
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