Neuroprotective Effect of a New 7,8-Dihydroxycoumarin-Based Fe<sup>2+</sup>/Cu<sup>2+</sup> Chelator in Cell and Animal Models of Parkinson’s Disease
作者:Pabla Aguirre、Olimpo García-Beltrán、Victoria Tapia、Yorka Muñoz、Bruce K. Cassels、Marco T. Núñez
DOI:10.1021/acschemneuro.6b00309
日期:2017.1.18
No binding capacity was detected for Hg2+, Co2+, Ca2+, Mn2+, Mg2+, Ni2+, Pb2+, or Cd2+. DHC12 accessed cells colocalizing with Mitotracker Orange, an indication of mitochondrial targeting. In addition, DHC12 chelated mitochondrial and cytoplasmic labile iron. Upon mitochondrial complex I inhibition, DHC12 protected plasma membrane and mitochondria against lipid peroxidation, as detected by the reduced
铁稳态的紊乱通常与线粒体功能障碍有关,在常见的神经退行性疾病(如帕金森氏病(PD))的进展中起重要作用。最近的研究强调了铁螯合疗法与这些疾病的治疗的相关性。在这里,我们描述了多功能螯合剂7,8-二羟基-4-((甲基氨基)甲基)-2 H-色烯-2-酮(DHC12)的合成,化学和生物学特性。DHC12的金属选择性为Cu 2+〜铁2+ >锌2+ >的Fe 3+。未检测到Hg 2 +,Co 2 +,Ca 2 +,Mn 2 +,Mg 2+的结合能力,Ni 2 +,Pb 2+或Cd 2+。DHC12访问了与Mitotracker Orange共定位的细胞,这表明线粒体靶向。此外,DHC12螯合了线粒体和细胞质不稳定铁。线粒体复合物I抑制后,DHC12保护质膜和线粒体免受脂质过氧化作用,这可通过减少4-羟基壬烯醛加成物的形成和C11-BODIPY 581/591的氧化来检测。DHC12还阻止了通过四甲基