铁死通过激活RAGE信号传递来调解高尿血性病的进展
Qiang Wang1,2, Yuemei Xi1,3, Hairong Zhao4,5
1Department of Internal Medicine, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China.
Antioxidants & redox signaling
|March 10, 2025
概括
铁,一种依赖于铁的细胞死亡,在高尿素性脏病 (HN) 中导致脏损伤. 抑制铁和向RAGE信号可能为HN提供新的治疗策略.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學.
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 高尿路性病 (HN) 涉及管管功能障碍,炎症和纤维化,其机制尚不清楚.
- 铁死是一种受调节的细胞死亡形式,尚未在HN中得到广泛的研究.
研究的目的:
- 为了研究铁死在HN病变发生中的作用.
- 探索潜在的机制,包括先进糖化终产品受体 (RAGE) 信号的参与.
主要方法:
- 利用尿酸氧化酶淘汰小鼠和人类脏2细胞来建模HN和铁死.
- 服用铁酶抑制剂费罗斯塔丁-1 (Fer-1) 和RAGE抑制剂.
- 分析了功能标记物,铁沉积,脂质过氧化,蛋白质表达 (GPX4,xCT,RAGE),炎症和信号通路.
- 检查了与高尿血症相关的人类病样本.
主要成果:
- 尿酸氧化酶淘汰赛小鼠表现出铁亡的迹象 (铁的增加,GPX4 / xCT的减少) 和损伤,这些损伤被Fer-1改善.
- 铁-1治疗减少了铁过载,脂质过氧化,炎症和MAPK信号传递.
- 单酸盐晶体在细胞中诱导了铁亡.
- 抑制RAGE改善了损伤和纤维化,但没有直接影响铁亡.
- 人类HN样本显示铁的增加,GPX4的减少,RAGE的升高.
结论:
- 铁亡与HN损伤,炎症和纤维化的发展有关.
- RAGE信号传递在HN病变发生过程中起着作用,但其与ferroptosis的相互作用是复杂和上下文依赖的.
- 向铁和RAGE通路为HN提供了潜在的治疗途径.
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