通过NEDD4L/NF-κB通路,SGK1有助于冠心病中的铁亡
Yong Peng1, Yu Jiang1, Qingfeng Zhou1
1Department of Cardiovascular Surgery, Key Laboratory for Cardiovascular Disease of Yunnan Province, Clinical Medicine Center for Cardiovascular Disease of Yunnan Province, Yan'an Hospital Affiliated to Kunming Medical University, Kunming 650051, China.
Journal of molecular and cellular cardiology
|September 8, 2024
概括
这项研究表明,SGK1通过调节NEDD4L-NF-κB通路来促进冠心病 (CHD) 的铁亡. 向SGK1可能为治疗慢性心脏病中的铁亡提供了一个新的治疗策略.
科学领域:
- 心血管生物学 心血管生物学
- 细胞机制 细胞机制
- 生物医学研究生物医学研究
背景情况:
- 冠心病 (CHD) 患病率在全球范围内随着人口老龄化而上升.
- 铁亡的作用,一个调节的细胞死亡途径,在心血管疾病的发病过程中仍然不清楚.
- 研究CHD中的铁亡机制对于开发新的治疗点至关重要.
研究的目的:
- 调查冠状动脉心脏病 (CHD) 中铁灭的潜在机制.
- 为了确定关键的基因和途径,在心血管疾病进展过程中涉及铁化.
- 评估SGK1作为一种潜在的治疗位,用于心脏病中的铁亡.
主要方法:
- 对CHD基因表达数据集 (GSE21610,GSE66360) 的生物信息学分析,以识别差异表达基因 (DEG).
- 使用小鼠大动脉内皮细胞 (MAEC) 的体外实验来评估SGK1在铁亡中的作用.
- 在体内研究使用CHD动物模型来验证SGK1抑制的治疗潜力.
主要成果:
- 生物信息学确定了交叉的DEG,包括SGK1,主要与免疫和炎症反应有关.
- 在MAEC中SGK1的敲击减轻了铁亡标志物 (例如,减少SLC7A11,GPX4下调;减少脂质过氧化和Fe积累).
- SGK1通过NEDD4L-NF-κB通路促进了铁亡,而SGK1的淘汰改善了CHD动物模型的结果,并减少了大动脉Fe积累.
结论:
- 在冠状动脉疾病的背景下,SGK1在促进内皮细胞铁灭方面发挥着重要作用.
- SGK1-NEDD4L-NF-κB信号轴是驱动CHD中铁亡的一个关键机制.
- 抑制SGK1代表了一种有前途的治疗策略,用于控制冠状动脉心脏病中的铁亡.
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