一个一流的高通量屏幕,用于发现替代延长端粒 (ALT) 途径的调节器
Merrill M Froney1, Christian R Cook1, Alyssa M Cadiz1
1UNC Eshelman School of Pharmacy, Division of Chemical Biology and Medicinal Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States.
ACS pharmacology & translational science
|September 19, 2024
概括
研究人员开发了一种新的高吞吐量屏幕,以寻找针对异常延长端粒 (ALT) 途径的药物,这是神经母细胞瘤和骨肉瘤等侵袭性癌症的关键机制.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 遗传学是一种遗传学.
背景情况:
- 端粒保护染色体末端,但在体细胞中缩短,导致衰老.
- 瘤细胞利用端粒维护机制 (TMM),包括端粒酶再激活或替代端粒延长 (ALT),以实现不朽.
- 在神经母细胞瘤和骨肉瘤等侵袭性癌症中,ALT很普遍,但由于对其复杂途径的理解不足,缺乏特定的抑制剂.
研究的目的:
- 开发一种高通量选方法,用于识别ALT通路的小分子抑制剂.
- 调查导致ALT的表观遗传机制.
- 发现ALT阳性癌症的新型治疗点.
主要方法:
- 开发出一流的表型高通量屏幕,利用C圆水平作为ALT特定的生物标志物.
- 选骨髓瘤和神经母细胞瘤细胞与一个表观遗传向的化合物库.
- 评估ALT活性中化合物诱导的变化.
主要成果:
- 成功建立了一个高通量屏幕,通过C-circle水平测量ALT活动.
- 确定了针对染色体调节蛋白和DNA损伤修复通路的化合物.
- 证明了屏幕在识别潜在的ALT抑制剂中的实用性.
结论:
- 开发的高通量C环测定是发现ALT抑制剂的宝贵工具.
- 屏幕提供了对ALT生物学和表观遗传调节的机制性见解.
- 这种方法将有助于扩大ALT驱动癌症的治疗目标.
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