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一种原性一氧化碳捐赠剂,用于减轻脑缺血损伤

Linfeng Xing1, Bin Wang2,3, Jin Li1

  • 1State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China.

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这项研究引入了PCOD585,一种新型化合物,可释放一氧化碳 (CO) 以防止缺血再输液损伤. 在中风模型中,PCOD585有效降低了脑损伤和细胞死亡.

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科学领域:

  • 生物医学工程
  • 神经科学
  • 化学学

背景情况:

  • 缺血-再输液 (I/R) 损伤涉及有害的活性氧物种,如过氧酸盐 (ONOO-).
  • 直接清除高度反应性的基因是具有挑战性的; 针对寿命较长的ONOO-提供了预防策略.
  • 在缺血事件中,一氧化碳 (CO) 具有神经保护性.

研究的目的:

  • 设计和合成一种新的ONOO-触发的一氧化碳供体,PCOD585,用于I/R损伤的潜在治疗应用.
  • 评估PCOD585对ONOO的基于光的检测能力.
  • 在脑损伤的细胞和动物模型中评估PCOD585的神经保护功效.

主要方法:

  • 使用设计用于ONOO触发CO释放的碳化物支架开发PCOD585.
  • 在PC-12细胞中对PCOD585的细胞保护作用的体外评估.
  • 在中脑动脉封闭 (MCAO) 鼠标模型中对PCOD585的血脑屏障透性和神经保护作用的体内评估.

主要成果:

  • 在检测ONOO时,PCOD585表现出光激活反应,使得可以进行显微镜监测.
  • 在接受OGD的PC-12细胞中,PCOD585提供了显著的细胞保护作用.
  • 在MCAO大鼠中,PCOD585降低了心脏病发作量,减少了细胞亡,并减轻了大脑胀,这表明神经保护.

结论:

  • PCOD585是一个有效的ONOO-触发的CO捐赠器,具有光探针的双重功能.
  • 该化合物表现出有前途的细胞保护和神经保护作用,防止I / R损伤,穿越血脑屏障.
  • PCOD585代表了缓解与缺血事件相关的大脑损伤的潜在治疗策略.