甲基醇诱导的神经功能障碍:通过细胞骨破坏,将糖尿病与阿尔茨海默病联系起来
Majid Tozihi1, Alireza Nourazarian2, Hadi Yousefi2
1Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran.
European journal of pharmacology
|March 19, 2025
概括
甲基醇 (MGO) 暴露会导致细胞死亡和炎症,导致糖尿病患者的阿尔茨海默病 (AD). 这项研究揭示了MGO的神经毒性作用,表明了糖尿病相关认知衰退的新治疗点.
科学领域:
- 神经科学是一个神经科学.
- 生物化学 生物化学
- 细胞生物学 细胞生物学
背景情况:
- 阿尔茨海默病 (AD) 在糖尿病患者中很普遍.
- 甲基醇 (MGO) 是一种反应性二碳化合物,涉及糖尿病并发症.
研究的目的:
- 为了研究MGO对SH-SY5Y细胞的神经毒性作用,AD的一个模型.
- 阐明MGO诱导的细胞毒性,炎症和氧化应激背后的机制.
主要方法:
- SH-SY5Y细胞暴露于MGO (150-900μM) 的不同度.
- 评估了细胞活力,形态,细胞亡 (内在和外在途径),基因表达 (胰岛素信号,炎症,氧化应激标志物),细胞骨完整性,Aβ42积累和SOD活性.
- 脂聚糖化物 (LPS) 治疗用于加剧MGO效应.
主要成果:
- 暴露于MGO显著降低了细胞活力,这种活力取决于剂量和时间.
- 通过内在 (BAX,CASP9) 和外在 (FAS,FASLG) 途径诱导MGO的亡.
- 观察到胰岛素信号标记物 (INSR,IRS1,IRS2,SLC2A4) 的下调和炎症 (TNF-α,IL-6) 和氧化应激标记物 (HMOX1,G6PD) 的上调.
- 细胞骨损伤 (MAP2, TUBB3),Aβ42水平增加,SOD活性降低证实了MGO诱导的神经毒性和氧化应激.
- 治疗LPS恶化了MGO诱导的影响.
结论:
- 在糖尿病相关的AD中观察到的神经毒性中,MGO起着重要作用.
- MGO诱导细胞毒性,炎症和氧化应激,导致认知能力下降.
- 针对MGO相关的神经毒性,为糖尿病患者的认知障碍管理提供了潜在的治疗策略.
关键词:
AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD ADD was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was细胞灭亡 (apoptosis) 是一种死亡的过程.细胞骨架 细胞骨架糖尿病是一种糖尿病.甲基格里奥克萨尔 (Methylglyoxal) 是一种氧化应激是一种氧化应激.
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