基Mcl-1抑制剂向线粒体 实现增强的抗瘤活性作为单一剂或与ABT-199结合使用
Xing Lu1,2,3, Mei-Feng Wu1, Jiang-Lun Wu1
1State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China.
Journal of medicinal chemistry
|June 26, 2023
概括
研究人员开发了一种基于的新型化合物,该化合物向线粒体,增强其对癌症中Mcl-1 (髓细胞白血病1) 的有效性. 这种方法显示出克服对现有疗法的耐药性的希望.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- Mcl-1 (骨髓细胞白血病1) 是一种关键的抗亡蛋白,与癌症进展和耐药性有关.
- 开发有效的Mcl-1抑制剂面临挑战,包括实现足够的结合亲和力和细胞吸收.
- 在线粒体内Mcl-1的主要定位为有针对性的治疗策略提供了机会.
研究的目的:
- 设计和发现新型Mcl-1抑制剂,利用线粒体向提高有效性.
- 评估一种针对线粒体的新型Mcl-1抑制剂的结合亲和力,选择性和抗瘤活性.
- 评估这些抑制剂在克服对现有癌症疗法的耐药性的潜力,特别是在组合疗法中.
主要方法:
- 一种基于的新型复合物的合成和表征,被指定为复合物9,用于线粒体向.
- 使用生物化学分析评估Mcl-1结合亲和力和选择性.
- 细胞局部化研究以证实瘤细胞中复合体9的线粒体积累.
- 在试验室 (例如,LP-1细胞中的亡诱导) 和体内 (小鼠模型) 评估抗瘤疗效,作为单一药物和与ABT-199.9结合使用.
- 研究所涉及的亡途径,特别是巴克斯/巴克斯依赖性.
主要成果:
- 发现了复合体9,这是第一个报告的线粒体向的基Mcl-1抑制剂.
- 综合体9具有高亲和力选择性结合Mcl-1并在瘤细胞线粒体中显示优先积累.
- 由于线粒体向,观察到抗瘤疗效的显著增强.
- 复合物9有效诱导巴克斯/巴克依赖性亡,并与ABT-199表现出协同效应,克服了对ABT-199耐药的癌细胞.
- 综合体9在临床前小鼠模型中表现出良好的疗效和耐受性,无论是单一疗法还是组合疗法.
结论:
- 线粒体向是开发新型Mcl-1抑制剂的一个有希望和有效的策略.
- 复合物9是一种强大的Mcl-1抑制剂,具有可归因于其线粒体局部化的增强抗瘤活性.
- 这种方法具有治疗各种癌症的潜力,特别是那些抗拒ABT-199.9等当前治疗方法的癌症.
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