((ii) - 烯复合体触发免疫性铁死,用于逆转药物耐药性
Mengdi Lv1, Yue Zheng2, Xiangyu Dai1
1National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, PR China.
Journal of medicinal chemistry
|September 23, 2024
概括
一种新型的复合物RuBTB通过诱导细胞死亡过程ferroptosis,从而增强抗瘤免疫力,有效地对抗化学阻力. 这一突破为克服癌症治疗中耐药性的新策略提供了新的突破.
科学领域:
- 基于金属的化学疗法
- 免疫原性细胞死亡
- 癌症药物耐药性 癌症药物耐药性
背景情况:
- 化学抵抗是癌症治疗的一个主要障碍.
- 铁亡是一种受调节的细胞死亡形式,通过激活免疫系统,为克服化学抵抗提供了一个有希望的途径.
- 金属烯复合物在瘤学中提供了独特的治疗潜力.
研究的目的:
- 开发一种新的以为基础的烯复合物,RuBTB,用于增强质亡的抗瘤免疫力和药物耐药性逆转.
- 研究RuBTB诱导铁亡和调节谷甲代谢的机制.
- 评估RuBTB与基疗法结合的体内疗效.
主要方法:
- 合成和表征以为基础的二烯复合物[Ru(η6-p-cym) ((BTBpy) Cl] (RuBTB).
- 在体外抗增殖试验中,使用抗西斯普拉丁的肺癌细胞进行抗增殖试验 (A549R).
- 涉及谷氨 (GSH) 枯竭,谷氨过氧化酶4 (GPX4) 失活,线粒体功能障碍,内分泌网膜 (ER) 压力和谷氨S转移酶 (GST) 抑制的机制研究.
- 在体内进行瘤疫苗接种实验以评估抗瘤效果.
主要成果:
- RuBTB显示显著增强抗扩散活性对抗抗西斯普拉丁耐药肺癌细胞 (26.35倍大于CDDP).
- 通过GSH枯竭/GPX4不活化,线粒体功能障碍和ER压力,RuBTB诱导了免疫性铁亡.
- 通过抑制GST,RuBTB逆转了的耐药性,从而调节GSH代谢并增强免疫反应.
- 在体内瘤疫苗接种证实了由于RuBTB诱导的免疫性铁死引起的强化抗瘤作用.
结论:
- 开发的RuBTB复合物是一种高性能药物,用于增强铁酶抗瘤免疫力和逆转药物耐药性.
- RuBTB有效地准谷氨代谢,以克服合疗法中化学阻力.
- 这项研究介绍了第一个能够诱导强大的铁亡的金属-烯复合物,具有显著的免疫原性,用于对抗金属基免疫化学疗法中药物耐药性.
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