由UCMSCs衍生的外体SLIT2通过β-catenin/TCF4/USP20信号通路缓解缺血性中风
Rongjun Xiao1, Qingsong Wang1, Jun Peng1
1Department of Neurosurgery, Central South University Xiangya School of Medicine Affliated Haikou Hospital, Haikou, Hainan Province, People's Republic of China.
The International journal of neuroscience
|April 24, 2025
概括
带介质干细胞衍生的外体体携带裂口导向连接物2 (SLIT2) 显示在治疗缺血性中风 (IS) 中具有潜力. 这种疗法激活TCF4/USP20通路,减少脑细胞损伤并抑制IS的进展.
科学领域:
- 神经科学是一个神经科学.
- 再生医学是一种再生医学.
- 细胞生物学 细胞生物学
背景情况:
- 缺血性中风 (IS) 涉及由于血液供应不足而导致的大脑组织死亡.
- 带介质干细胞 (UCMSCs) 衍生的外体细胞 (UCMSCs-Exo) 在缓解IS方面表现有前途.
- 众所周知,裂口导向合体2 (SLIT2) 可以促进IS后的神经修复.
研究的目的:
- 调查UCMSCs衍生的外体SLIT2在缓解IS进展中的机制.
- 探索TCF4/USP20通路在UCMSC-Exo介导的神经保护中的作用.
主要方法:
- 已建立的中脑动脉封闭 (MCAO) 鼠和氧气-葡萄糖剥夺/再输液 (OGD/R) 细胞模型.
- 用UCMSCs-Exo治疗的模型和评估的细胞活力和细胞亡.
- 利用西方斑点,免疫光,免疫组织化学,ChIP和双化酶记者测试来分析蛋白质表达和分子相互作用.
主要成果:
- 在OGD/R模型中,UCMSCs衍生的外体SLIT2增强了细胞活力和减少了细胞亡.
- SLIT2促进了β-catenin的核转移,导致TCF4的激活.
- TCF4上调了USP20表达,抑制了OGD/R诱导的细胞损伤,并减轻了MCAO大鼠中的IS.
结论:
- 由UCMSCs衍生的外体SLIT2通过β-catenin核转位激活TCF4/USP20通路.
- 这一途径可调节USP20,减轻神经元细胞损伤并抑制缺血性中风的进展.
- UCMSC-Exo疗法代表了缺血性中风的潜在治疗策略.
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