一种新型的特异性阿普坦酶在缺血性中风后向大脑血管内皮细胞
Heng Hu1, Silin Wu1, Tae Jin Lee1
1Department of Neurosurgery, McGovern School of Medicine, University of Texas Health Science Center, MSB 7.134, 6431 Fannin St., Houston, TX, 77030, USA.
Scientific reports
|June 20, 2023
概括
研究人员开发了一种RNA吸收体,以向中风大脑中的脑血管内皮细胞 (CEC). 这种有针对性的输送方法在急性缺血性中风治疗中显示出细胞特异性疗法的前景.
科学领域:
- 生物医学工程 生物医学工程
- 神经科学是一个神经科学.
- 分子生物学分子生物学
背景情况:
- 针对急性缺血性中风的细胞特异性向治疗 (CSTT) 是一个新兴领域.
- 大脑血管内皮细胞 (CEC) 对于血脑屏障的完整性至关重要,最初会受到缺血事件的影响.
- 在中风中,CEC损伤导致神经元能量缺陷和大脑.
研究的目的:
- 调查基于RNA的aptamer在急性缺血性中风的背景下专门针对CEC的潜力.
- 在中风的小鼠模型中,评估VCAM-1吸收酶在细胞特异性输送到CEC中的疗效.
主要方法:
- 采用一种基于RNA的阿帕特马,旨在结合血管细胞粘附分子-1 (VCAM-1).
- 在一只小鼠模型中使用VCAM-1阿帕特马,以诱导缺血性中风的暂时中脑动脉阻塞 (tMCAO).
- 评估了CEC在中风影响的大脑区域的具体向.
主要成果:
- 血管细胞粘附分子-1 (VCAM-1) 表达在缺血性中风后的CEC上升调节.
- 基于RNA的VCAM-1吸收体证明了中风受影响的大脑中CECs的特定结合和向.
- 在小鼠中风模型中确认了aptamer在体内到达并与CEC结合的能力.
结论:
- 基于RNA的阿马可以有效地向缺血性中风大脑中的脑血管内皮细胞 (CEC).
- 这种基于aptamer的向策略在开发中风先进的细胞特异性向疗法 (CSTT) 中具有重大潜力.
- 这些发现支持开发用于急性缺血性中风治疗的新型治疗交付平台.
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