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Ao-Meng Hu¹, Meng Chen¹, Can-Can Zhu¹

¹School of Preclinical Medicine, Wannan Medical College, Wuhu, 241002, China.

Biochemistry and biophysics reports

|January 26, 2026

概括

抗肝炎药物Bifendate (DDB) 有效抑制PARthanatos,这是一个细胞死亡途径,与神经退行性疾病有关. 通过阻止AIF转位而不会损害PARP-1功能,DDB保护细胞,提供更安全的治疗策略.

科学领域:

神经科学是一个神经科学.
细胞生物学细胞生物学
药理学药理学是指药理学的学科.

背景情况:

PARthanatos是一种被编程的细胞死亡途径,涉及神经退行性疾病和缺血性中风.
传统的PARP-1抑制剂可以阻止PARthanatos,但长期使用可能导致基因组不稳定.

研究的目的:

从NMPA批准的化合物库中识别一种新的PARthanatos抑制剂.
为了研究Bifendate (DDB) 抑制PARthanatos的作用机制.
评估DDB作为神经系统疾病的潜在治疗剂.

主要方法:

对NMPA批准的化合物库进行选,以识别PARthanatos抑制剂.
在用MNNG和DDB治疗的HeLa和SH-SY5Y细胞中进行细胞活力测定.
西部涂抹测定PARP-1,AIF和MIF的蛋白质水平.
线粒体测试以评估膜潜力和AIF转位.
分析ERK信号通路 (MEK,ERK激活,不良酸化).

主要成果:

双酸 (DDB) 被确定为一种有效的PARthanatos抑制剂.
DDB在HeLa细胞中增加了约30%,在SH-SY5Y细胞中增加了70%.
DDB阻止了AIF从线粒体的转移,而没有改变PARP-1,AIF或MIF蛋白水平.
DDB激活了MEK/ERK通路,导致不良酸化,维护线粒体完整性,并防止AIF释放.
DDB抑制了PARP-1激活的下游的PARthanatos,而不影响PARP-1酶活性.

结论:

由于其抑制PARthanatos的能力,DDB是神经系统疾病的有希望的治疗候选者.
通过调节ERK信号,并防止AIF介导的细胞死亡,DDB提供了一个神经保护策略.
DDB代表了传统PARP-1抑制剂的更安全的替代品,避免了基因组不稳定性的风险.

关键词:

两者之间的日期.埃尔克·埃尔克是什么意思线粒体中的线粒体.神经保护是一种神经保护.在PARthanatos中使用.

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