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doxorubicin 通过上调 AMPAR 和 NMDAR 子单元的表达和增加神经炎症,氧化应激和大脑中的亡来损害认知功能
Ahmad H Alhowail1, Maha A Aldubayan1
1Department of Pharmacology and Toxicology, College of Pharmacy, Qassim University, Buraidah, Saudi Arabia.
Frontiers in pharmacology
|December 15, 2023
概括
多克索鲁比 (DOX) 化疗通过增加神经炎症,氧化应激和亡,导致认知障碍. 这项研究揭示了DOX上调谷氨酸受体表达,导致大鼠的记忆力缺陷.
科学领域:
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
- 在瘤学瘤学.
背景情况:
- doxorubicin (DOX) 是一种重要的化疗剂,用于治疗各种癌症.
- 接受DOX治疗的癌症幸存者经常经历认知障碍,影响他们的生活质量.
研究的目的:
- 为了研究DOX诱导的急性认知障碍背后的分子机制.
- 评估DOX对谷氨酸受体表达,神经炎症,氧化应激和亡的影响.
主要方法:
- 大鼠接受了DOX (25 mg/kg) 的单次腹腔内注射以诱导认知缺陷.
- 使用Y迷宫,新型物体识别和恐惧调节测试来评估记忆功能.
- 分析了大脑样本的mRNA和谷氨酸受体 (GluA1,NR2A,NR2B),COX-2,NF-kB,TNF-α,MDA,Bax和caspase-3的蛋白质水平.
主要成果:
- 接受DOX治疗的老鼠在所有记忆测试中都表现出明显的认知障碍.
- 在DOX治疗的老鼠的大脑中观察到GluA1,NR2A,NR2B,MDA,NF-κB,Bax,COX-2,TNF-α和caspase-3的升高水平.
- 这些发现表明神经炎症,氧化应激和亡的增加.
结论:
- 多克索鲁比通过神经元毒性诱导认知障碍.
- AMPA和NMDA受体的升级,以及增加的神经炎症,氧化应激和亡,调解了DOX对大脑功能的有害影响.
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