不仅仅是DNA损伤:来自4,5-diarylimidazoles的Pt(II) -NHC复合体增加了免疫细胞死亡
Lu Tang1, Xingyu Chang2, Jing Shi1
1Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
European journal of medicinal chemistry
|November 20, 2024
概括
新型复合物显示出对肝癌治疗的前景. 复合物3f诱导癌细胞死亡并刺激免疫反应,可能克服对传统化疗的耐药性.
科学领域:
- 药用化学 医学化学
- 癌症免疫学 癌症免疫学
- 药物开发 药物开发
背景情况:
- 基于白金的药物是标准的化疗剂,向DNA.
- 新兴研究表明,复合物可以诱导免疫细胞死亡 (ICD) 和抗瘤免疫力.
- 需要新的剂,具有增强的化学免疫特性.
研究的目的:
- 为了合成新的(II) -N-异环碳 (Pt(II) -NHC) 复合物.
- 评估它们作为肝癌化学免疫治疗剂的潜力.
- 为了研究化合物的抗肝癌机制.
主要方法:
- 来自4,5-diarylimidazoles的Pt(II) -NHC复合物的合成.
- 在体外评估抗肝癌活性,DNA结合,ROS生成,线粒体功能和细胞周期进展.
- 评估内等质网膜应激 (ERS),ICD诱导,树突细胞 (DC) 成熟和PD-L1表达.
主要成果:
- 复合物3f在抗肝癌方面表现出优异的疗效,与西斯和氧沙相比.
- 复杂3f诱导的DNA损伤,ROS生成,线粒体功能障碍和G0/G1细胞周期停止,导致细胞亡.
- 复合体3f激活了ERS,促进了DAMPs的释放,诱导了ICD,成熟了DC,并调节了PD-L1,将"冷瘤"转化为"热瘤".
结论:
- 复合物3f通过直接细胞毒性和免疫刺激的结合,表现出显著的抗肝癌活性.
- 该化合物有效诱导免疫细胞死亡,并增强瘤的免疫微环境.
- 复合物3f是肝癌治疗中新型化疗免疫疗法的有希望的候选者.
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