Design, Synthesis, and Biological Evaluation of Novel Tetramethylpyrazine Derivatives as Potential Neuroprotective Agents
作者:Haiyun Chen、Guolian Tan、Jie Cao、Gaoxiao Zhang、Peng Yi、Pei Yu、Yewei Sun、Zaijun Zhang、Yuqiang Wang
DOI:10.1248/cpb.c16-00699
日期:——
Oxidative stress plays a crucial role in neurological diseases, resulting in excessive production of reactive oxygen species, mitochondrial dysfunction and cell death. In this work, we designed and synthesized a series of tetramethylpyrazine (TMP) derivatives and investigated their abilities for scavenging free radicals and preventing against oxidative stress-induced neuronal damage in vitro. Among
氧化应激在神经系统疾病中起着至关重要的作用,导致活性氧的过量产生,线粒体功能障碍和细胞死亡。在这项工作中,我们设计和合成了一系列的四甲基吡嗪(TMP)衍生物,并研究了它们在体外清除自由基和预防氧化应激引起的神经元损伤的能力。其中,由TMP,咖啡酸和硝酰基组成的化合物22a显示出有效的自由基清除活性。化合物22a具有广泛的神经保护作用,包括挽救碘乙酸诱导的神经元丢失,防止叔丁基过氧化氢(t-BHP)诱导的神经元损伤。化合物22a通过激活磷脂酰肌醇3-激酶(PI3K)/ Akt信号传导途径发挥其对t-BHP损伤的神经保护作用。此外,在永久性大脑中动脉阻塞的大鼠模型中,化合物22a显着改善了神经功能缺损,并减轻了梗塞面积和脑水肿。总之,我们的结果表明,化合物22a可能是潜在的神经保护剂,可用于治疗神经系统疾病,尤其是缺血性中风。