CETZOLE类似物作为强大的铁灭菌诱导物及其目标识别使用共价/亲缘关系探针
Samkeliso Dlamini1, Shahrzad Mohajeri1, Nishanth Kuganesan2
1Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, The University of Toledo, 2801, W. Bancroft Street, Toledo, Ohio 43606, United States.
Journal of medicinal chemistry
|September 12, 2024
概括
新的CETZOLE化合物通过增加活性氧物种 (ROS) 在癌细胞中诱导铁 (依赖铁的细胞死亡). 这些强大的诱导剂向参与细胞抗氧化途径的蛋白质,提供了一个有前途的癌症治疗策略.
科学领域:
- 生物化学 生物化学
- 细胞生物学 细胞生物学
- 在瘤学瘤学.
背景情况:
- 铁亡是一种依赖于铁的细胞死亡途径,涉及脂质过氧化.
- 之前的工作确定了CETZOLEs作为具有低微分子功率的铁灭诱导剂.
研究的目的:
- 为了开发更强大的CETZOLE类似物用于ferroptosis诱导.
- 为了研究新型CETZOLEs的分子标和癌细胞敏感性.
主要方法:
- 结构与活动关系研究,以优化CETZOLE.
- 基于细胞的测试来评估铁亡的标志 (ROS积累,细胞死亡).
- 蛋白质组方法 (共价/亲缘关系探针) 和西方抹杀方法用于识别和验证蛋白质标.
主要成果:
- 开发了具有纳米分子CC50值的高强度CETZOLE类似物.
- CETZOLE治疗诱导了铁亡的特征,包括ROS积累.
- 癌细胞对CETZOLEs的敏感性比正常细胞更强.
- 鉴定出氨酸β-合成酶,过氧素,ADP/ATP载体和葡萄糖脱酶作为CETZOLE结合蛋白,与GPX4.4一起.
结论:
- 新型CETZOLE衍生物是铁亡的强有力的诱导剂.
- 这些化合物对癌细胞具有选择性毒性.
- CETZOLEs针对细胞抗氧化防御系统中的关键蛋白质,突出显示了癌症治疗的新疗法.
相关概念视频
Combined Effects of Drugs: Synergism
Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Such synergistic combinations...
EDTA: Chemistry and Properties
Polydentate ligands are most widely used in complexometric titrations because they form more stable complexes with the metal ions than mono- or bidentate ligands due to the chelate effect. Examples of polydentate ligands are ethylenediaminetetraacetic acid (EDTA), crown ethers, and cryptands. The most important feature of optimal polydentate ligands is the ability to form 1:1 complexes in a single-step process. Amino carboxylic acid derivatives are frequently used as complexing agents. EDTA is...
Rapid Identification of Pathogens
MALDI-TOF MS has transformed clinical microbiology by offering a rapid and reliable method for pathogen identification. The traditional approach to microbial identification typically involves time-consuming culture techniques and biochemical tests, which can delay the initiation of appropriate antimicrobial therapy. MALDI-TOF MS avoids these delays by using characteristic ribosomal protein mass patterns of microbial cells, enabling accurate species-level identification within minutes.Principle...
Inhibitors of Bacterial DNA Synthesis
Bacterial pathogens depend on precise and efficient DNA replication to sustain infection. Two type II topoisomerases—DNA gyrase and topoisomerase IV—are critical to this process, as they resolve DNA supercoiling and unlink chromosomes during replication. Fluoroquinolones, synthetic derivatives of quinolones, exploit this mechanism by stabilizing the transient DNA–enzyme cleavage complex, preventing strand religation, and causing lethal double-strand breaks. These antibiotics are selectively...
Anthelminthic Agents
Anthelmintic drugs differ significantly from antiparasitic therapies targeting protozoa, primarily due to differences in parasite biology. Whereas most protozoal treatments act on proliferating cells, anthelmintics are typically directed against mature, nonproliferative helminths. The therapeutic approach considers the helminth's reliance on neuromuscular coordination, glucose metabolism, and microtubular integrity for survival, reproduction, and localization within the host. Most anthelmintics...
Antiprotozoal Agents
Leishmaniasis is a widespread parasitic disease caused by several Leishmania species. It affects millions of people each year and remains a major public health problem in endemic regions. First-line treatment relies on pentavalent antimonials, including meglumine antimoniate and sodium stibogluconate. Even so, how these drugs work has not been fully clear, especially their interaction with parasite-specific biochemical pathways. One key target is trypanothione reductase (TR), an enzyme that...


