曼吉费林通过Keap1/Nrf2/SLC7A11/GPX4通路抑制骨质细胞铁,从而减轻骨质疏松症
Xuehui Deng1, Bingfeng Lin2, Fang Wang1
1School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 311402, China.
概括
曼吉费林通过直接向Keap1,激活Nrf2/SLC7A11/GPX4通路来抑制骨质细胞铁亡. 这种天然化合物促进骨形成,缓解骨质疏松症,提供了一种新的治疗策略.
科学领域:
- 生物化学 生化学
- 细胞生物学 细胞生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 铁性严重损害骨质母细胞的功能,并导致骨质疏松症.
- 果衍生化合物曼吉费林显示出抗骨质疏松的潜力,但其机制尚不清楚.
- 了解曼吉费林在骨质细胞铁亡中的作用对于开发新的骨质疏松症治疗方法至关重要.
研究的目的:
- 为了研究曼吉费林对骨质细胞铁亡的作用.
- 在溶解物载体家族7-成员11 (SLC7A11) /氨酸过氧化酶4 (GPX4) 途径中确定曼吉费林的直接分子标.
主要方法:
- 在体内研究中使用了骨质疏松症和铁过载的小鼠模型,通过口服给予曼吉费林.
- 实验室模型包括铁过载和埃拉斯诱导的铁亡骨质细胞,以及基因淘汰研究.
- 机制探索涉及RNA测序,细胞热转移测定,in silico对接和表面等离子体共振,以确定mangiferin的直接目标.
主要成果:
- 曼吉费林在体内和体外模型中证明促进骨形成和抑制铁亡.
- 曼吉费林直接与类ECH相关蛋白1 (Keap1) 结合,激活Nrf2/SLC7A11/GPX4通路.
- 曼吉费林的保护作用取决于Nrf2,SLC7A11和GPX4,并且其表现优于已知的铁酶抑制剂和Nrf2激动剂.
结论:
- 曼吉费林被确定为一种新的铁灭抑制剂和直接的Keap1结合剂.
- 曼吉费林通过向Keap1-Nrf2途径促进骨形成并减轻骨质疏松症.
- 这项研究将曼吉费林作为一种有前途的治疗药物,用于治疗骨质疏松症等由铁死驱动的疾病.
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