新型MUS81抑制剂的碎片式发现
Gavin W Collie1, Ulf Börjesson2, Yunhua Chen3
1R&D, AstraZeneca, Cambridge CB2 0AA, U.K.
ACS medicinal chemistry letters
|July 17, 2024
概括
研究人员发现了新的小分子抑制剂,用于MUS81,这是一种对癌症生存至关重要的酶. 这项研究为MUS81抑制提供了第一个结构性见解,有助于癌症药物开发.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- MUS81是一种结构选择性内核酶,参与DNA修复过程,如同源重组和分裂.
- MUS81活动对癌细胞生存至关重要,特别是在DNA修复受损的瘤中.
- 准MUS81为癌症治疗提供了一个有希望的途径,但有效的小分子抑制剂很少.
研究的目的:
- 为发现MUS81内核酶的新型小分子抑制剂.
- 为了获得关于小分子对MUS81抑制的结构性见解.
- 为了促进优化潜在的癌症治疗药物,针对MUS81.1.
主要方法:
- 基于碎片的药物发现方法.
- 生物化学测试以确定抑制剂活性 (小微米).
- 结晶学以获得MUS81抑制剂的联结结构.
主要成果:
- 鉴定具有亚微分子生物化学活性的新型小分子MUS81抑制剂.
- 开发一种用于MUS81抑制剂复合物的新型晶体系统.
- 产生了第一个结构数据,说明了MUS81.1.的小分子抑制.
结论:
- 基于碎片的发现产生了强大的MUS81抑制剂.
- 获得的晶体结构为合理的药物设计提供了与MUS81.1.相比的关键见解.
- 这些发现在开发针对MUS81的癌症疗法方面取得了重大进展.
相关概念视频
Inhibitors of Bacterial Protein Synthesis
Aminoglycosides constitute a highly potent class of bactericidal antibiotics that exert their antimicrobial effects by targeting the bacterial ribosome, specifically disrupting protein synthesis. These polycationic molecules consist of amino-modified sugars linked via glycosidic bonds to an aminocyclitol core such as 2-deoxystreptamine or streptamine. Their strong positive charges facilitate tight binding to the negatively charged phosphate backbone of ribosomal RNA (rRNA), primarily at the 16S...
Inhibitors of Viral Protein Synthesis
Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...


