在急性IS大鼠中,循环D1/CDK与细胞蛋白的协调提高了细胞增殖信号的调节,并保持了神经功能
Kun-Chen Lin1, Kuan-Hung Chen1, John Y Chiang2,3
1Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, 83301, Taiwan, R.O.C.
International journal of biological sciences
|October 13, 2025
概括
在干细胞中过度表达细胞蛋白 (PrPC) 通过激活细胞增殖信号来增强急性缺血性中风 (AIS) 老鼠的神经恢复. 这种协调改善了细胞活力,减少了损伤标志物,从而在AIS模型中获得了更好的结果.
科学领域:
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
- 干细胞疗法 干细胞疗法
背景情况:
- 急性缺血性中风 (AIS) 涉及复杂的细胞损伤和神经功能受损.
- 细胞质蛋白 (PrPC) 在细胞信号传递和生存中发挥作用.
- 循环D1/循环依赖激酶 (CDK) 途径对于细胞循环的进展和增殖至关重要.
研究的目的:
- 为了研究PrPC过度表达和cyclin D1/CDK激活对AIS的神经结果的协同效应.
- 评估PrPC对干细胞增殖,活力和应激反应的影响.
- 在AIS大鼠模型中评估PrPC-过度表达ADMSC的治疗潜力.
主要方法:
- 过度表达PrPC (PrPC-OE) 在脂肪衍生介质干细胞 (ADMSC) 中.
- 在体外测试测量细胞活力,增殖,线粒体质量和伤口愈合.
- 在体内研究使用AIS老鼠模型与不同的治疗组 (对照组,AIS,ADMSCs,PrPC-OEADMSCs).
- 评估神经功能,细胞计数 (NeuN +,MBP +) 和损伤的分子标记,细胞亡,自和细胞应激信号.
主要成果:
- PrPC-OE显著增加了ADMSC的活力,增殖,线粒体质量和伤口愈合率.
- PrPC-OE增强了线粒体信号标记物 (cyclin D1,cyclin E1,CDK2,CDK4) 和细胞应激蛋白 (p-Akt,PI3K,Akt,m-TOR) 的表达.
- 在AIS大鼠中,PrPC-OEADMSC治疗显著改善了神经功能,增加了NeuN+和MBP+细胞数量,并减少了细胞亡,DNA/线粒体损伤,纤维化和炎症的标志物,与单独ADMSC治疗相比.
结论:
- 与PrPC协调的激活的环素D1/CDK显著改善了AIS中的神经功能.
- 在ADMSC中PrPC的过度表达通过促进细胞存活和增殖来增强它们对AIS的治疗潜力.
- 针对PrPC-cyclin D1/CDK轴是AIS治疗的一个有希望的策略.
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