ProTox: a web server for the in silico prediction of rodent oral toxicity.

ProTox: a web server for the in silico prediction of rodent oral toxicity.
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DOI:
10.1093/nar/gku401
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发表时间:
2014-07
影响因子:
14.9
通讯作者:
Preissner R
Preissner R
中科院分区:
生物学2区
文献类型:
--
作者:
Drwal MN;Banerjee P;Dunkel M;Wettig MR;Preissner R

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动物试验是目前确定候选药物和化妆品可能的毒性作用的主要方法。计算机模拟预测方法代表了一种替代方法,旨在使临床前药物开发合理化,从而减少相关的时间,成本和动物实验。在这里,我们提出了ProTox,一个用于预测啮齿动物口服毒性的Web服务器。该预测方法基于已知半数致死剂量(LD 50)化合物的相似性分析,并结合了毒性片段的鉴定,为毒性预测提供了一种新的方法。此外,网络服务器包括可能的毒性靶标的指示,其基于与药物不良反应相关的靶标的基于蛋白质-配体的药效团模型(“毒性团”)的内部收集。ProTox网络服务器向所有用户开放,无需注册即可访问:http://tox.charite.de/tox。预测的唯一要求是输入化合物的二维结构。所有ProTox方法均基于不同的外部验证集进行了评价,并显示出较强的性能(灵敏度、特异性和精确度分别为76%、95%和75%)和优于其他毒性预测工具,表明其可能适用于其他化合物类别。
Animal trials are currently the major method for determining the possible toxic effects of drug candidates and cosmetics. In silico prediction methods represent an alternative approach and aim to rationalize the preclinical drug development, thus enabling the reduction of the associated time, costs and animal experiments. Here, we present ProTox, a web server for the prediction of rodent oral toxicity. The prediction method is based on the analysis of the similarity of compounds with known median lethal doses (LD50) and incorporates the identification of toxic fragments, therefore representing a novel approach in toxicity prediction. In addition, the web server includes an indication of possible toxicity targets which is based on an in-house collection of protein–ligand-based pharmacophore models (‘toxicophores’) for targets associated with adverse drug reactions. The ProTox web server is open to all users and can be accessed without registration at: http://tox.charite.de/tox. The only requirement for the prediction is the two-dimensional structure of the input compounds. All ProTox methods have been evaluated based on a diverse external validation set and displayed strong performance (sensitivity, specificity and precision of 76, 95 and 75%, respectively) and superiority over other toxicity prediction tools, indicating their possible applicability for other compound classes.
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