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网林-1与UNC5b的结合通过AMPK-BACH1通路改善了中风后的神经神经灭

Ying Luo¹, Meiling Yao², Rui Wang²

¹Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University; Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases; National Key Clinical Department and Key Discipline of Neurology, No.58 Zhongshan Road 2, Guangzhou, 510080, China; Department of Neurology, The Affiliated Hospital of Southwest Medical University, Laboratory of Neurological Diseases and Brain Function, Luzhou, 646000, China.

European journal of pharmacology

|March 14, 2025

概括

网林-1 (Ntn1) 通过激活AMPK和通过UNC5b.抑制BACH1来保护神经元免受中风后的铁亡. 这一途径减少了神经元死亡,并改善了缺血事件后的结果.

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
生物化学生物化学

背景情况:

铁亡有助于在缺血性中风后的神经元死亡.
BTB域和CNC同源1 (BACH1) 是一种铁灭菌促进剂.
网林-1 (Ntn1) 通过其受体UNC5b和AMPK提供神经保护.

研究的目的:

研究Ntn1/UNC5b信号是否通过AMPK-BACH1通路调节中风后的铁亡.
阐明Ntn1在减轻缺血性中风后神经元铁亡中的作用.

主要方法:

在HT22神经元中利用光血栓性中风小鼠和氧气-葡萄糖剥夺.
服用了Ntn1,UNC5b siRNA,AMPK抑制剂 (BAY3827) 和BACH1激活剂 (莱普托米辛B).
评估了铁灭症标志物,蛋白质水平 (BACH1,p-AMPK/AMPK) 和通过西部斑块和共免疫沉的蛋白质相互作用.

主要成果:

Ntn1补充或UNC5b敲击减少了神经元铁亡并改善了神经功能.
这些影响与BACH1降低和p-AMPK增加有关.
AMPK直接与BACH1结合,Ntn1的保护作用通过AMPK-BACH1轴进行介导.

结论:

脑中风后的神经铁灭是由UNC5b触发的.
Ntn1通过激活UNC5b,激活AMPK,并随后抑制BACH1.1,从而增强神经保护.
Ntn1-UNC5b-AMPK-BACH1通路代表了中风恢复的新型治疗标.

关键词:

这就是AMPKK.在BACH1的基础上.大脑缺血症的大脑缺血症铁性化 (ferroptosis) 是一种一个 Ntn1 一个 Ntn1 联合国气候变化公约5b.

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