发现TK-642是一种高度强效,选择性,口服生物可用的基于pyrazolopyrazine的全性SHP2抑制剂
Kai Tang1, Shu Wang1, Siqi Feng1
1School of Pharmaceutical Sciences & Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou 450001, China.
Acta pharmaceutica Sinica. B
|September 5, 2024
概括
我们开发了TK-642,一种基于pyrazolopyrazine的新型抑制剂,向SHP2 (Src同质-2-含蛋白氨酸酸酶2). 这种口服生物可用化合物在食道癌症的临床前模型中显示出强大的抗癌活性.
科学领域:
- 在瘤学瘤学.
- 药用化学 医学化学
- 分子生物学分子生物学
背景情况:
- SHP2 (Src同质-2-含蛋白氨酸酸酶2) 是癌症中涉及的信号通路的关键调节者.
- 向SHP2为各种恶性瘤提供了一个有希望的治疗策略.
研究的目的:
- 设计和识别SHP2.2的新型,强效和口服生物可用的全抑制剂.
- 在食道癌症模型中评估化合物TK-642的抗癌疗效.
主要方法:
- 5,6聚变双循环化合物的结构导向设计.
- 生物化学测试以确定SHP2抑制 (IC50) 和药物动力学概况.
- 在食道癌细胞系中进行细胞增殖和亡测定.
- 使用异种移植小鼠模型进行体内抗瘤疗效研究.
主要成果:
- 鉴定TK-642,一种基于pyrazolopyrazine的抑制剂,具有高强度 (SHP2 WT IC50 = 2.7 nmol/L) 和选择性.
- TK-642表现出良好的口服生物利用率 (F=42.5%) 和药用动力学特性 (t1/2=2.47小时).
- TK-642抑制了食道癌细胞增殖 (IC50 = 5.73 μmol/L),诱导了亡,并在体内显示出显著的抗瘤作用 (T/C = 83.69%).
结论:
- TK-642是一种强效,选择性和口服生物可用的全性SHP2抑制剂.
- TK-642有效地准SHP2介导的AKT和ERK信号通路,从而产生抗癌效应.
- 作为食道癌的潜在治疗剂,TK-642需要进一步研究.
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