SLC22A17作为脑性缺血中紧张结的细胞死亡相关调节剂
Wenlu Li1, Jingfei Shi1,2, Zhanyang Yu1
1Departments of Radiology and Neurology, Neuroprotection Research Laboratories (W.L., J.S., Z.Y., L.H., W.D., M.N., E.H.L.), Massachusetts General Hospital, Harvard Medical School, Boston.
Stroke
|May 13, 2024
概括
溶解体载体家族22成员17 (SLC22A17) 调节脑内皮紧接口和中风后的血脑屏障完整性. 针对SLC22A17可能为与中风相关的血管损伤和提供一种新的治疗策略.
科学领域:
- 神经科学是一个神经科学.
- 血管生物学 血管生物学
- 细胞死亡途径 细胞死亡途径
背景情况:
- 脑卒中引起的血管损伤涉及超出神经元损伤的细胞死亡途径.
- 溶性载体家族22成员17 (SLC22A17) 被确定为内皮细胞反应的新型调解者.
- 在缺血和炎症性压力下,SLC22A17调节内皮紧接口.
研究的目的:
- 研究SLC22A17在脑缺血后血管损伤中的作用.
- 阐明SLC22A17影响血脑屏障 (BBB) 完整性的机制.
- 探索SLC22A17作为潜在的中风治疗点.
主要方法:
- 使用STRING和Cytoscape进行蛋白质与蛋白质相互作用和通路丰富分析.
- 在体内研究中,使用过渡性焦点脑缺血的小鼠模型.
- 在体外实验中,在炎症性压力下对人类大脑内皮细胞进行了实验.
- 使用透性和电阻测试来评估BBB完整性.
- 使用lentiviral载体和短干扰RNA (siRNA) 的功能增益和丧失研究.
主要成果:
- 在人类和小鼠脑缺血后,SLC22A17的表达在脑内皮上升调,与BBB泄漏相关.
- 通过siRNA介导的SLC22A17的淘汰阻止了瘤亡因子-α (TNF-α) 诱导的铁亡,并保留了紧结蛋白表达和内皮屏障功能.
- 发现SLC22A17抑制了紧密结合基因的转录.
- 用siRNA准SLC22A17改善了BBB泄漏在焦点脑缺血的小鼠模型.
结论:
- 在脑缺血后,SLC22A17在调节BBB功能方面发挥着重要作用.
- 这些发现表明SLC22A17是减轻中风后BBB损伤和瘤的新疗法标.
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