循环乙烯硫激活NRF2,以保护其免受氧化应激诱导的计划性亡
Pavel Davidovich1, Dmitriy Nikolaev2, Raniya Khadiullina3
1Trinity College, Dublin, Ireland.
Bioorganic & medicinal chemistry letters
|December 7, 2024
概括
循环乙烯硫,如LCB1353,激活NRF2通路,稳定NRF2蛋白并提高其向基因的调节. 这些化合物显示出保护细胞免受氧化应激和铁亡的承诺.
科学领域:
- 分子生物学分子生物学
- 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:
- NRF2转录因子调节细胞对氧化应激的反应.
- 通过涉及KEAP1和E3结合酶Cullin-3的蛋白质体降解,NRF2水平受到严格控制.
- 周期性乙烯基硫衍生物已经显示出抗炎性质,但它们的作用机制尚不清楚.
研究的目的:
- 研究循环乙烯硫衍生物作为潜在的NRF2激活探针.
- 阐明这些化合物的抗炎作用背后的机制.
- 评估LCB1353对氧化应激诱导的细胞死亡的保护作用.
主要方法:
- 对模型周期性乙烯基硫衍生物的检查.
- 对NRF2蛋白稳定和基因上调的评估.
- 在非小细胞肺癌细胞 (H1299) 中的细胞活性的评估,在RSL引起的ferroptotic条件下3.3.
主要成果:
- 发现纳夫托基衍生物LCB1353能够有效地稳定NRF2蛋白水平.
- LCB1353治疗导致NRF2目标基因的上调.
- 在5-10μM时,LCB1353显著保护H1299细胞免受RSL3诱导的铁性死亡,将细胞死亡率从90%降低到5%.
结论:
- 循环乙烯硫,以LCB1353为例,是有效的NRF2激活剂.
- LCB1353显示出对铁亡的强有力的保护作用.
- 这些化合物代表了开发治疗剂的有希望的支架,用于治疗涉及氧化应激和炎症的疾病.
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