Organ slices for the evaluation of human drug toxicity

被引:46
作者
Vickers, AEM
Fisher, RL
机构
[1] Allergan Pharmaceut Inc, Safety Evaluat, Irvine, CA 92623 USA
[2] Vitron Inc, Tucson, AZ USA
关键词
drug toxicity; human organ slices; organ injury;
D O I
10.1016/j.cbi.2004.09.005
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Human organ slices. an in vitro model representing the multicellular and functional features of in vivo tissue, is a promising model for characterizing mechanisms of drug-induced organ injury and for identifying biomarkers of organ injury. Target organ injury is a significant clinical issue. In vitro models, which compare human and animal tissue to improve the extrapolation of animal in vivo Studies for predicting human outcome, will contribute to improving drug candidate selection and to defining species susceptibilities in drug discovery and development programs. A critical aspect to the performance and outcome of human organ slice studies is the use of high quality tissue, and the use of culture conditions that support optimum organ slice survivability, in order to accurately reproduce mechanisms of organ injury in vitro. The attribute of organ slices possessing various cell types and interactions contributes to the overall biotransformation, inflammatory response and assessment of injury. Regional differences and changes in morphology can be readily evaluated by histology and special stains, similar to tissue obtained from in vivo studies. The liver is the major organ of which slice studies have been performed, however the utility of extra-hepatic derived slices, as well as co-cultures is increasing. Recent application of integrating gene expression, with human organ slice function and morphology demonstrate the increased potential of this model for defining the molecular and biochemical pathways leading to drug-induced tissue changes. By gaining a more detailed understanding of the mechanisms of drug-induced organ injury, and by correlating clinical measurements with drug-induced effects in the in vitro models, the vision of human in vitro models to identify more sensitive and discriminating markers of organ damage is attainable. (C) 2004 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码:87 / 96
页数:10
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