新型FGFR1 PROTACs的设计,合成和生物评估
Yu-Wei Wang1, Yu-Hui Gao1, Cheng Wang1
1Jiangsu Key Laboratory of Drug Design & Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, PR China.
Bioorganic chemistry
|January 5, 2025
概括
研究人员开发了S2h化合物,这是一种新型的蛋白质溶解向嵌合体 (PROTAC),可以有效降解癌细胞中的纤维细胞生长因子受体1 (FGFR1). 这一发现为克服癌症治疗中对FGFR抑制剂的耐药性提供了一种新的策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 药物发现 药物发现 药物发现
背景情况:
- 纤维细胞生长因子受体1 (FGFR1) 信号失调驱动各种癌症,包括乳腺癌,前列腺癌和膀癌.
- 获得的耐药性限制了当前的FGFR抑制剂的长期疗效,需要新的治疗策略.
研究的目的:
- 发现和描述一种新的小分子降解剂,其向FGFR1.1.
- 探讨向蛋白质溶解的嵌合体 (PROTACs) 在克服针对FGFR向癌症疗法的耐药性的潜力.
主要方法:
- 设计和合成了一种新型异构功能分子,化合物S2h,包含一个九原子链接器.
- 在KG1a细胞中评估FGFR1降解强度和选择性.
- 通过ubiquitin-proteasome系统 (UPS) 评估降解动力学 (度和时间依赖) 和机制.
主要成果:
- 化合物S2h在KG1a细胞中的纳米分子度 (IC50=26.81nM,DC50=39.78nM) 选择性有效地降解FGFR1.
- 证实FGFR1由S2h降解是依赖于度和时间的,并且由无素-蛋白酶体系统介导.
- 该研究强调了链接器特征在PROTAC设计中对强烈降解的关键作用.
结论:
- 化合物S2h是一种有前途的新型FGFR1降解剂,有可能用于癌症治疗.
- 这些发现为针对FGFR的PROTAC的设计原则提供了宝贵的见解.
- 这项工作为开发针对由FGFR1失调驱动的癌症治疗方法提供了新的途径.
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