选择性YTHDF1抑制剂的识别 针对m6乳腺癌的识别域
Yongya Wu1, Guotai Feng1, Wen Shuai1
1State Key Laboratory of Biotherapy and Cancer Center, Innovation Center of Nursing Research, Children's Medicine Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, No. 17, Section 3, Renmin South Road, Chengdu, 610041, China.
Angewandte Chemie (International ed. in English)
|August 19, 2025
概括
研究人员开发了SKLB-Y13,这是第一个针对YTHDF1的选择性抑制剂,YTHDF1是一种与乳腺癌相关的蛋白质. 这种小分子破坏癌细胞生长,并通过抑制YTHDF1来促进细胞亡.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 在瘤学瘤学.
背景情况:
- 含有YTH域的家族蛋白1 (YTHDF1) 是一个关键的N6-甲基氨酸 (m6A) 读取器,参与蛋白质合成.
- 异常的YTHDF1表达与乳腺癌 (BC) 的进展有关.
- 由于YTH域同质性,现有的YTHDF1抑制剂缺乏选择性和有效性.
研究的目的:
- 开发第一个专门针对YTHDF1.1的小分子抑制剂.
- 研究选择性YTHDF1抑制在乳腺癌中的治疗潜力.
主要方法:
- 结构优化一个4,5,6,7-四二[2,3-c]里丁支架,以创建SKLB-Y13.
- 局部定向突变发生,以确认与YTHDF1特异性残留物 (Tyr397和Trp470) 的相互作用.
- 细胞和体内研究,化学蛋白质组学和药理动力学分析.
主要成果:
- SKLB-Y13选择性地针对YTHDF1的m6A结合口袋,其IC50为0.76μM.
- SKLB-Y13对YTHDF1比其他YTH家族蛋白质具有更高的选择性.
- SKLB-Y13破坏了YTHDF1-PRPF6mRNA的相互作用,抑制了BC的增殖,并促进了亡.
结论:
- SKLB-Y13是第一个选择性YTHDF1抑制剂,为m6A依赖性瘤发生研究提供了一种新的化学探针.
- 这种抑制剂显示出作为针对YTHDF1-过度表达乳腺癌的精密疗法的起点的希望.
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