科克索尔衍生物通过向PARP1来诱导DNA损伤
Yiwei Zheng1, Yuhan Jiang1, Long Zheng1
1Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, People's Republic of China.
European journal of medicinal chemistry
|November 5, 2025
概括
一种新型化合物9a,向聚 (ADP-ribose) 聚合酶1 (PARP1),显示出强大的抗癌活性. 这种PARP1抑制剂有效地降低了癌细胞的增殖,并在临床前癌症模型中证明了有效性.
科学领域:
- 药用化学 医学化学
- 癌症生物学 癌症生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 聚 (ADP-ribose) 聚合酶1 (PARP1) 是DNA修复中的关键酶,使其成为癌症治疗的重要目标.
- 识别具有提高疗效和减少副作用的新型抑制剂对于推进癌症治疗至关重要.
研究的目的:
- 使用计算方法和化学合成识别和设计新的PARP1抑制剂.
- 在临床前模型中评估合成化合物,特别是化合物9a的抗癌潜力.
主要方法:
- 虚拟查和计算机辅助药物设计 (CADD) 用于识别潜在的PARP1抑制剂.
- 合成了一系列醇衍生物,并评估了它们的PARP1抑制活性.
- 进行结构-活性关系 (SAR) 分析以优化抑制剂的疗效.
- 使用乳腺癌MDA-MB-231和卵巢癌A2780细胞进行了体外测定.
- 进行了体内研究和机理研究 (细胞亡,细胞循环,ROS,迁移).
主要成果:
- 科伊索尔被确定为一种针对PARP1.1的天然产品.
- 化合物9a表现出显著的PARP1抑制活性和强大的抗增殖作用.
- 化合物9a在体外和体内实验中表现出优越的疗效,与积极对照药物相比.
- 机理学研究表明,9a诱导细胞亡,DNA损伤,S相停止,增加ROS,并抑制细胞迁移和增殖.
结论:
- 化合物9a代表了开发有效PARP1抑制剂的新型结构框架.
- KWZY-9a (化合物9a) 对未来的癌症治疗应用具有显著的潜力.
- 这些发现支持9a作为癌症治疗开发的有前途的候选人.
相关概念视频
02:36DNA Damage Can Stall the Cell Cycle
3.0K
In response to DNA damage, cells can pause the cell cycle to assess and repair the breaks. However, the cell must check the DNA at certain critical stages during the cell cycle. If the cell cycle pauses before DNA replication, the cells will contain twice the amount of DNA. On the other hand, if cells arrest after DNA replication but before mitosis, they will contain four times the normal amount of DNA. With a host of specialized proteins at their disposal,cells must use the right protein at...
3.0K
02:36DNA Damage can Stall the Cell Cycle
10.0K
In response to DNA damage, cells can pause the cell cycle to assess and repair the breaks. However, the cell must check the DNA at certain critical stages during the cell cycle. If the cell cycle pauses before DNA replication, the cells will contain twice the amount of DNA. On the other hand, if cells arrest after DNA replication but before mitosis, they will contain four times the normal amount of DNA. With a host of specialized proteins at their disposal,cells must use the right protein at...
10.0K
01:38Nucleotide Excision Repair
5.0K
DNA Distortion and Damage
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
5.0K
01:08Nucleotide Excision Repair
40.6K
Overview
40.6K
02:27Base-pairing and DNA Repair
90.2K
90.2K
01:54Base Excision Repair
25.9K
One of the common DNA damages is the chemical alteration of single bases by alkylation, oxidation, or deamination. The altered bases cause mispairing and strand breakage during replication. This type of damage causes minimal change to the DNA double helix structure and can be repaired by the base excision repair (BER) pathways. BER corrects damaged DNA sequences by removing the damaged base and restoring the original base sequence using the complementary strand as a template.
The first step of...
The first step of...
25.9K