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Cuproptosis 有助于西斯普拉丁诱导的毒性:洞察蒂莫尔的潜在抑制和保护作用
Layla A Al-Kharashi1, Amira M Badr1, Reem T Atawia2,3
1Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia.
Pharmaceuticals (Basel, Switzerland)
|November 27, 2025
概括
提摩尔通过降低氧化应激和抑制新型细胞死亡途径cuproptosis来防止西斯普拉丁诱导的损伤. 这一发现为癌症治疗中新的脏保护策略提供了潜力.
科学领域:
- 生物化学 生物化学
- 毒理学 毒理学 毒理学
- 药理学 药理学是指药理学的学科.
背景情况:
- 西斯是一种重要的化疗药物,但由于严重的毒性,其使用受到限制.
- 了解青诱导的损伤机制对于开发保护剂至关重要.
- 确定安全的辅助疗法以减轻西斯的副作用是临床的必要性.
研究的目的:
- 在大鼠模型中研究蒂莫尔对西斯普拉丁诱导的毒性产生的保护作用.
- 阐明基底机制,包括氧化应激和cuproptosis,涉及蒂莫尔的脏保护作用.
主要方法:
- 在施用西斯普拉丁之前,老鼠被提摩尔预先治疗以诱导毒性.
- 通过测量血清肌素和血液尿素水平来评估功能.
- 组织病理学分析评估了脏组织损伤.
- 分析了氧化应激标志物和与cuproptosis相关的基因/蛋白质表达.
- 进行了分子对接研究,以评估蒂摩尔与与cuproptosis相关的蛋白质的相互作用.
主要成果:
- 提摩尔的预治疗显著预防了西斯普拉丁诱导的损伤,恢复了正常的功能标志物.
- 胰腺病理学证实,在接受了提摩尔治疗的老鼠中,脏结构得到了保存.
- 蒂莫尔通过恢复抗氧化防御和减少脂质过氧化物,改善了西斯普拉丁诱导的氧化应激.
- 蒂莫尔抑制了西斯普拉丁诱导的与cuproptosis相关的基因 (SLC31A1,DLAT,FDX1,LIAS,ATP7A) 和FDX1蛋白表达的上调.
- 分子对接表明,蒂摩尔与关键的质亡相关蛋白质 (FDX-1,DLAT,ATP7A) 之间存在有利的相互作用.
结论:
- 氧化应激和cuproptosis是西斯产生的毒性的主要贡献者.
- 蒂摩尔对抗西斯普拉丁损伤具有显著的脏保护作用.
- 蒂莫尔的保护机制涉及减轻氧化应激和抑制cuproptosis,表明其作为辅助治疗的潜力.
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