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arXiv 0810.2617q-bio.QMq-bio.BM
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从蛋白质结合到药代动力学:预测药物活性吸收的新方法

From protein binding to pharmacokinetics: a novel approach to active drug absorption prediction

P. O. Fedichev, T. V. Kolesnikova, A. A. Vinnik

摘要:

由于其固有的复杂性,主动转运是口服吸收特性预测的一个里程碑。我们提出了一种新的方法载体介导的药物吸收参数计算的基础上完全不同的范式QSPR。我们利用最近出现的想法,分子活动对一个大的蛋白质集可以用于预测的生物效应,并进行了大规模的数字对接的药物样化合物的一个大的多样化的蛋白质集。因此,我们首次确定了一种蛋白质,其结合与许多活性吸收化合物的肠道渗透性密切相关。虽然该蛋白不是转运蛋白,但我们推测它具有与重要的肠道转运蛋白相似的结合位点力场。这一观察有助于我们改进被动吸收模型,通过加入与转运蛋白相关的非线性通量,获得主动转运的定量模型。这项研究表明,结合数据的一个足够有代表性的蛋白质组可以作为一个基础,为给定的化合物的主动吸收预测。

英文摘要:

Due to inherent complexity active transport presents a landmark hurdle for oral absorption properties prediction. We present a novel approach carrier-mediated drug absorption parameters calculation based on entirely different paradigm than QSPR. We capitalize on recently emerged ideas that molecule activities against a large protein set can be used for prediction of biological effects and performed a large scale numerical docking of drug-like compounds to a large diversified set of proteins. As a result we identified for the first time a protein, binding to which correlates well with the intestinal permeability of many actively absorbed compounds. Although the protein is not a transporter, we speculate that it has the binding site force field similar to that of an important intestinal transporter. The observation helped us to improve the passive absorption model by adding non-liner flux associated with the transporting protein to obtain a quantitative model of active transport. This study demonstrates that binding data to a sufficiently representative set of proteins can serve as a basis for active absorption prediction for a given compound.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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