酸盐脱酶是基于in silico预测和in vitro抑制研究的基因对 gentamicin 的潜在线粒体脱目标
Charlotte A Hoogstraten1, Jan B Koenderink2, Carolijn E van Straaten2
1Division of Pharmacology and Toxicology, Department of Pharmacy, Radboud University Medical Center, Nijmegen 6500 HB, the Netherlands; Radboud Center for Mitochondrial Medicine, Radboud University Medical Center, Nijmegen 6500 HB, the Netherlands.
概括
计算方法确定了酸盐脱酶 (PDH) 作为毒药物珍塔米辛的线粒体脱标. 这一发现有助于理解在发育过程中药物诱导的毒性机制.
科学领域:
- 生物化学 生物化学
- 药理学 药理学是指药理学的学科.
- 计算毒理学计算毒理学
背景情况:
- 器官毒性导致药物开发的重大失败,线粒体功能障碍与药物诱导的毒性有关.
- 鉴定药物毒性的分子机制,特别是线粒体的目标外,仍然是一个关键的挑战.
- 在 silico 方法是有价值的预测意外药物相互作用和非目标效应.
研究的目的:
- 通过计算建模,识别毒药物诺福维尔和珍塔米辛的新型线粒体异位目标.
- 通过体外酶分析验证预测的目标外相互作用.
主要方法:
- 利用多种in silico方法 (KRIPO,ProBis,PDID) 来预测特诺福维尔和热胺素潜在的线粒体目标.
- 进行了体外酶活性测定,以评估诺福维尔对二酸酸脱酶 (DHODH) 和珍塔素对酸盐脱酶 (PDH) 的抑制作用.
主要成果:
- 在 silico 分析中预测Dihydroorotate 脱酶 (DHODH) 是tenofovir 和Pyruvate 脱酶 (PDH) 作为 gentamicin 的潜在目标.
- 试验室内实验证实, جنت米辛强烈抑制了PDH活性.
- 诺福维尔没有显著抑制DHODH活性.
结论:
- 在 silico 方法成功预测了PDH作为gentamicin的线粒体目标,突出了它们在药物毒性研究中的实用性.
- 甘胺素对PDH活性的抑制需要进一步调查其对甘胺素诱导的毒性的贡献.
- 这项研究为了解药物诱导的线粒体功能障碍和改善药物安全性评估提供了基础.
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