Preparation and Measuring of Brain GABAAR-coupled Cl-/HCO3-- Activity for Integral Assessment of Aquatic Toxicity

Sergey A. Menzikov
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Abstract

The wide use of aromatic hydrocarbons in various industries is having a negative effect on the environment and human health. Therefore, a key focus of current toxicology is the development and use of protein reporters with high sensitivity to various aromatic hydrocarbons (including phenolics and drugs). One molecular target for a wide range of pharmacology drugs and aromatic hydrocarbons (including phenol) is the neuronal GABAAR-coupled Cl-/HCO3--ATPase. In this study, we present a protocol for isolation of the membrane-bound Cl-/HCO3--ATPase from neuronal cells of animal brain. We then describe an uncomplicated in vitro method for measuring this ATPase activity for assessment of toxicity after interaction of this protein with an aquatic sample. This assay offers new avenues for using the Cl-/HCO3--ATPase as a biomarker of water toxicity. This biotest is efficient, requires very little of the enzyme, and retains its sensitivity at low levels of various compounds. © 2019 by John Wiley & Sons, Inc.

脑gabaar偶联Cl-/HCO3-活性的制备和测定及其在水生毒性综合评价中的应用
芳烃在各行各业的广泛使用对环境和人类健康产生了负面影响。因此,当前毒理学研究的一个重点是开发和使用对各种芳香烃(包括酚类物质和药物)具有高敏感性的蛋白质报告蛋白。广泛的药理学药物和芳香烃(包括苯酚)的一个分子靶标是神经元gabaar偶联的Cl-/HCO3- atp酶。在这项研究中,我们提出了一种从动物大脑神经元细胞中分离膜结合的Cl-/HCO3- atp酶的方案。然后,我们描述了一种简单的体外方法来测量这种atp酶活性,以评估这种蛋白质与水生样品相互作用后的毒性。该实验为使用Cl-/HCO3- atp酶作为水毒性的生物标志物提供了新的途径。这种生物试验是有效的,需要很少的酶,并保持其敏感性在低水平的各种化合物。©2019 by John Wiley &儿子,Inc。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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