通过通过PGC-1α通路向氧化应激和线粒体损伤,PACAP可缓解帕克利塔塞尔诱导的外周神经病变
Ruyue Mo1, Chuanming Wang2, Haibei Hu3
1Department of Clinical Laboratory Medicine, Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China.
CNS neuroscience & therapeutics
|January 22, 2026
概括
pituitary adenylate cyclase-activating polypeptide (PACAP) 通过增强线粒体功能和减少氧化应激,有效地治疗帕克利塔塞尔诱导的外周神经病变 (PIPN). 这种治疗方法显示出作为辅助癌症治疗的前景.
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:
- 帕克利塔塞尔诱导的周围神经病变 (PIPN) 是帕克利塔塞尔化学疗法的显著剂量限制毒性.
- 研究PIPN的新型治疗策略对于改善患者的治疗结果和治疗坚持至关重要.
研究的目的:
- 在PIPN.的小鼠模型中评估垂体腺酸环酶激活多 (PACAP) 的治疗疗效.
- 阐明PACAP发挥其神经保护作用的潜在分子机制.
主要方法:
- 建立了帕克利塔塞尔诱导的外周神经病变的小鼠模型.
- 对神经性疼痛的行为评估,包括机械体症和热/冷过敏症.
- 氧化应激,线粒体功能的分子分析 (Western blot,ELISA,TEM),以及背部根和神经细胞中的PGC-1α/HO-1表达. 使用PGC-1α抑制剂进行机制验证.
主要成果:
- 高剂量的PACAP显著改善了帕克利塔塞尔诱导的神经病性疼痛行为.
- PACAP治疗降低了背脊根结质中的氧化应激标志物 (ROS,MDA) 和增强了抗氧化能力 (SOD).
- PACAP恢复了线粒体功能 (膜潜力,ATP水平,超结构),并提高了PGC-1α和HO-1表达的调节,效果取决于PGC-1α激活. 重要的是,PACAP并没有损害paclitaxel的抗瘤活性.
结论:
- 在减轻PIPN方面,PACAP显示出显著的治疗潜力.
- 该机制涉及PGC-1α通路的激活,从而改善线粒体功能和抵消氧化应激.
- PACAP代表了对PIPN的一种有前途的辅助疗法,它不会影响帕克利塔塞尔化疗的疗效.
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