SS-31通过抑制微质铁和两极化来改善心脏骤停后的脑损伤
Tangxing Jiang1, Huidan Zhang2, Yijun Sun2
1Department of Emergency Medicine, Qilu Hospital of Shandong University, Jinan, China; Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine, Institute of Emergency and Critical Care Medicine of Shandong University, Chest Pain Center, Qilu Hospital of Shandong University, Jinan, China; Medical and Pharmaceutical Basic Research Innovation Center of Emergency and Critical Care Medicine, China's Ministry of Education, Shandong Provincial Engineering Laboratory for Emergency and Critical Care Medicine, Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Key Laboratory of Cardiopulmonary-Cerebral Resuscitation Research of Shandong Province, Qilu Hospital of Shandong University, Jinan, China; NMPA Key Laboratory for Clinical Research and Evaluation of Innovative Drug, Qilu Hospital of Shandong University, Jinan, China; National Key Laboratory for Innovation and Transformation of Luobing Theory, The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Qilu Hospital of Shandong University, Jinan, China; Department of Critical Care Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China.
SS-31通过减少微质铁和炎症来保护心脏骤停后的大脑. 这种神经保护作用通过准Sesn2信号通路来改善生存和神经功能.
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:
- 心脏骤停 (CA) 和复苏通常会导致严重的脑损伤.
- 铁和线粒体功能障碍是这种CA后脑损伤的关键因素.
- SS-31是一种针对线粒体的,在缓解缺血症/再输液损伤方面表现有前途.
研究的目的:
- 为了研究SS-31在CA和复苏后对脑损伤的神经保护潜力.
- 阐明潜在的分子机制,重点关注铁和微质激活.
- 检查Sesn2信号通路在SS-31的影响中的作用.
主要方法:
- 建立了CA和复苏的老鼠模型,使用SS-31或盐水进行治疗.
- 评估的生存率,神经学分数,血清标志物 (NSE,S100B) 和大脑组织学.
- 研究了铁亡标志物 (GPX4,铁,氧化应激,细胞因子) 和Sesn2信号在体内和体外 (BV2细胞).
主要成果:
- SS-31治疗显著改善了复苏后的生存率和神经功能.
- SS-31降低了神经元损伤 (NSE,S100B) 和大脑组织病理学的标志物.
- SS-31通过增强GPX4,减少铁,氧化应激和促炎细胞因子,主要通过Sesn2途径减弱微质铁亡.
结论:
- 在CA后的脑损伤模型中,SS-31显示出显著的神经保护作用.
- 该机制涉及抑制微质铁亡并促进抗炎转变.
- 通过Sesn2途径向微质铁和两极分化,代表了治疗CA后脑损伤的一个有希望的治疗策略.


