Zebrafish: an emerging technology for in vivo pharmacological assessment to identify potential safety liabilities in early drug discovery

被引:205
作者
Barros, T. P. [1 ]
Alderton, W. K.
Reynolds, H. M. [1 ]
Roach, A. G.
Berghmans, S.
机构
[1] Summit Cambridge Ltd, Cambridge, England
关键词
zebrafish; safety pharmacology; liability; high throughput; model organism;
D O I
10.1038/bjp.2008.249
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
The zebrafish is a well-established model organism used in developmental biology. In the last decade, this technology has been extended to the generation of high-value knowledge on safety risks of novel drugs. Indeed, the larval zebrafish appear to combine advantages of whole organism phenotypic assays and those (rapid production of results with minimal resource engagement) of in vitro high-throughput screening techniques. Thus, if appropriately evaluated, it can offer undeniable advantages in drug discovery for identification of target and off-target effects. Here, we review some applications of zebrafish to identify potential safety liabilities, particularly before lead/candidate selection. For instance, zebrafish cardiovascular system can be used to reveal decreases in heart rate and atrial-ventricular dissociation, which may signal human ether-a-go-go-related gene (hERG) channel blockade. Another main area of interest is the CNS, where zebrafish behavioural assays have been and are further being developed into screening platforms for assessment of locomotor activity, convulsant and proconvulsant liability, cognitive impairment, drug dependence potential and impaired visual and auditory functions. Zebrafish also offer interesting possibilities for evaluating effects on bone density and gastrointestinal function. Furthermore, available knowledge of the renal system in larval zebrafish can allow identification of potential safety issues of drug candidates on this often neglected area in early development platforms. Although additional validation is certainly needed, the zebrafish is emerging as a versatile in vivo animal model to identify off-target effects that need investigation and further clarification early in the drug discovery process to reduce the current, high degree of attrition in development.
引用
收藏
页码:1400 / 1413
页数:14
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