基于FR901464的RNA剪接调节器及其在耐药癌症中的协同作用的合成和形态分析
Jacob P Beard1, Robert K Bressin1, Paulo L Markaj1
1Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States.
Journal of medicinal chemistry
|October 23, 2023
概括
梅亚素D是一种新型FR901464模拟物,通过诱导替代拼接和与venetoclax协同作用来向癌细胞. 其核心结构的甲基化显著降低了细胞毒性,指导了未来的药物设计.
科学领域:
- 药用化学 医学化学
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- FR901464是一种细胞毒性天然产品,向结合体组分SF3B1和PHF5A.
- FR901464中含有胺的四胺环与SF3B1的结合机制需要进一步阐明.
研究的目的:
- 合成和评估meayamycin D和类似物以探测FR901464的结合形状.
- 为了研究FR901464类型的细胞毒性和抗癌作用的结构-活性关系.
主要方法:
- 合成梅亚氨酸D和三个额外的类似物.
- 甲基扫描以探测对结合和细胞毒性的 conformational 影响.
- 对替代拼接诱导,药物协同作用和癌细胞特异性的评估.
主要成果:
- 含有胺的四胺环采用单个椅子形状.
- 甲基化扭曲了环,显著降低了细胞毒性.
- 梅亚素D诱导MCL-1替代拼接,并在耐药肺癌细胞中与venetoclax表现出强大的协同作用.
- 梅亚氨酸D在小鼠中显示出癌症特异性细胞毒性和长的血半衰期.
结论:
- 梅亚氨酸D的独特构造和生物活性为结合体抑制剂设计提供了洞察力.
- 这项研究为开发新型L形分子作为向抗癌疗法提供了基础.
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