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尾蛋白下调促进经过实验性创伤性脑损伤后的血管生成
Qian Zhang1, Yao Jing2, Qiuyuan Gong2
1Department of Gerontology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Neural regeneration research
|October 20, 2023
概括
在创伤性脑损伤后降低Endorepellin的调节促进血管生成,并通过激活关键生长因子通路,改善小鼠的神经行为结果.
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
- 再生医学是一种再生医学.
背景情况:
- 恩多雷佩林调节血管生成,但其在创伤性脑损伤 (TBI) 恢复中的作用尚不清楚.
- 创伤性脑损伤可能导致血管生成受损和神经系统缺陷.
研究的目的:
- 在小鼠模型中调查内烯对血管生成和TBI后的神经行为结果的影响.
- 探索Endorepellin对TBI恢复影响的潜在分子机制.
主要方法:
- 在小鼠中使用了受控的TBI皮层冲击模型.
- 腺相关病毒 (AAV) -sh Endorepellin 被用于降低endorepellin表达的调节.
- 血管新生标志物 (CD31+/Ki-67+细胞,微血管密度),神经行为测试,西部斑点和同步射血管学被采用.
- 使用人类静脉内皮细胞进行的体外研究评估了管道形成.
主要成果:
- 通过AAV-sh降低内素的下调,内素增加了受损大脑中的内皮细胞和微血管密度的增殖.
- 与对照TBI小鼠相比,Endorepellin下调导致了改善的神经行为结果.
- 血管内皮生长因子 (VEGF) 和血管蛋白-1表达在内皮林下调后增加.
- 在体外,内烯倒置增强了内皮细胞管的形成.
结论:
- 尾蛋白下调促进血管生成和TBI后皮质新血管化.
- 这种由VEGF和angiopoietin-1通路介导的亲血管效应,有助于改善神经功能和神经行为恢复.
- 向endorepellin代表了TBI的潜在治疗策略.
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