中国神经再生研究(英文版) ›› 2021, Vol. 16 ›› Issue (11): 2243-2249.doi: 10.4103/1673-5374.310689

• 原著:脑损伤修复保护与再生 • 上一篇    下一篇

特立氟胺可减轻海马和小脑切片培养物的氧糖剥夺损害

  

  • 出版日期:2021-11-15 发布日期:2021-04-13

Teriflunomide provides protective properties after oxygen-glucose-deprivation in hippocampal and cerebellar slice cultures

Anna Wolters, Judith Reuther, Philipp Gude, Thomas Weber, Carsten Theiss, Heike Vogelsang, Veronika Matschke   

  1. 1Institute of Anatomy, Department of Cytology, Medical Faculty, Ruhr University Bochum, Bochum, Germany; 2Department of Anaesthesiology and Intensive Care Medicine, Ruhr University Bochum, St. Josef Hospital, Bochum, Germany
  • Online:2021-11-15 Published:2021-04-13
  • Contact: Veronika Matschke, Dr.rer.nat., Veronika.Matschke@rub.de.

摘要:

由于脑缺血再灌注损伤以及慢性炎症性疾病在一定程度上表现出共同的反应,因而治疗炎症性神经疾病的药物可能对脑缺血有益。特立氟胺(Teriflunomide)作为一种用于治疗复发性多发性硬化症的口服药物,其预处理可减少活化的小胶质细胞和星形胶质细胞中的促炎介质。实验假设特立氟胺可减轻局部缺血脑细胞损伤,将大鼠海马和小脑的器官切片培养物暴露于氧-葡萄糖剥夺(OGD),然后用特立氟胺处理。与未处理的培养物相比,特立氟胺干预使海马和小脑切片培养物中氧糖剥夺后有更多的细胞存活。然而,与小脑切片培养相比,海马切片培养对缺血性疾病表现出更高的脆弱性,对特立氟胺的反应更为敏感。实验结果表明,特立氟胺在氧糖剥夺大鼠器官型切片培养物中的海马和小脑细胞具有保护作用。

https://orcid.org/0000-0001-9717-4485 (Veronika Matschke)

Abstract: One of the major challenges in emergency medicine is out-of-hospital cardiac arrest (OHCA). Every year, about 53–62/100 000 people worldwide suffer an out-of-hospital cardiac arrest with serious consequences, whereas persistent brain injury is a major cause of morbidity and mortality of those surviving a cardiac arrest. Today, only few and insufficient strategies are known to limit neurological damage of ischemia and reperfusion injury. The aim of the present study was to investigate whether teriflunomide, an approved drug for treatment of relapsing-remitting-multiple-sclerosis, exerts a protective effect on brain cells in an in vitro model of ischemia. Therefore, organotypic slice cultures from rat hippocampus and cerebellum were exposed to oxygen-glucose-deprivation and subsequently treated with teriflunomide. The administration of teriflunomide in the reperfusion time on both hippocampal and cerebellar slice cultures significantly decreased the amount of detectable propidium iodide signal compared with an untreated culture, indicating that more cells survive after oxygen-glucose-deprivation. However, hippocampal slice cultures showed a higher vulnerability to ischemic conditions and a more sensitive response to teriflunomide compared with cerebellar slice cultures. Our study suggests that teriflunomide, applied as a post-treatment after an oxygen-glucose-deprivation, has a protective effect on hippocampal and cerebellar cells in organotypic slice cultures of rats. All procedures were conducted under established standards of the German federal state of North Rhine Westphalia, in accordance with the European Communities Council Directive 2010/63/EU on the protection of animals used for scientific purposes.

Key words: brain damage, cardiac arrest, cell death, hypoxic chamber, ischemia, organotypic slice cultures, post-treatment, resuscitation

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