小分子诱导的线粒体解的自发逆转:阿尼利诺基的情况
Roman S Kirsanov1, Ljudmila S Khailova1, Vladimir S Krasnov1,2
1Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Russia.
The FEBS journal
|November 21, 2024
概括
线粒体解器表现出组织特异性的效应,BDNT等氨基基作为原. 肝脏线粒体中的谷氨酸S转移酶 (GST) 活性解释了解器.
科学领域:
- 生物化学 生物化学
- 线粒体生理学线粒体生理学
- 药物发现 药物发现 药物发现
背景情况:
- 组织特异性线粒体解器是有前途的药物线索.
- 氨基烯被研究为潜在的谷氨S转移酶 (GST) 基质.
- 诱导双相线粒体呼吸的5 - - N - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 的机制尚不清楚.
研究的目的:
- 为了合成和评估anilinothiophenes作为特定组织的线粒体解器.
- 阐明BDCT及其类似物双相作用背后的机制.
- 调查谷氨S转移酶 (GST) 在氨基烯活性中的作用.
主要方法:
- 合成BDCT和两种类型,包括5--3,4-丁-N-(4-尼特罗) -2-thiophenamine (BDNT).
- 在孤立的鼠肝线粒体 (RLM) 和鼠心线粒体 (RHM) 中评估线粒体膜潜力和呼吸.
- 使用平面双层脂质膜进行质子运输研究,并通过LC-MS和毛细血管电泳分析分析BDNT-氨酸合物.
主要成果:
- 在RLM中,BDNT显示出强大的线粒体解活性,降低了膜潜力,并刺激了呼吸.
- 在RLM中BDNT的双相效应被谷氨 (GSH) 增强,并被GSH降低剂抑制.
- 在RHM中缺少BDNT诱导的解,但存在于人体纤维细胞中,而不是HepG2细胞;BDNT充当阴离子原体 (pKa 7.38).
- 在RLM中观察到BDNT-GSH结合体形成的直接证据,但不是RHM.
结论:
- 在RLM中的GST活动可能会代谢anilinothiophenes,导致解活动的消失.
- 这种GST介导的新陈代谢赋予了氨基烯解器的组织特异性行为.
- 氨基,特别是BDNT,是有效的原光体,有可能成为组织特异性药物的导体.
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