一些新的lomofloxacin衍生物的设计,合成和体外抗癌活性
Mina E Adly1, Ehab M Gedawy2,3, Afaf A El-Malah2
1Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, 33 Kasr El-Aini Street, Cairo, 11562, Egypt. mina.magharyos@pharma.cu.edu.eg.
Scientific reports
|March 15, 2024
概括
新的lomofloxacin衍生物被合成以抑制topoisomerase II,显示出强大的抗癌活性. 化合物3e表现出显著的细胞循环停止和与多克索鲁比相似的拓酶II抑制.
科学领域:
- 药用化学 医学化学
- 癌症生物学 癌症生物学
- 分子药理学分子药理学
背景情况:
- 拓二醇酶是抗癌药物开发的关键目标.
- 作为一种诺基诺隆的米,作为一种新型治疗剂的支架.
- 开发具有更好的疗效和作用机制的新抗癌药物至关重要.
研究的目的:
- 设计和合成新型的lomofloxacin衍生物,以托波色酶II为向.
- 评估这些衍生物对各种人类癌症细胞系的细胞毒性和抗癌潜力.
- 阐明作用机制,包括拓酶II抑制和细胞循环效应.
主要方法:
- 在位置3和7替代的lomofloxacin衍生物的合成.
- 对60个人类癌症细胞系进行细胞毒性活性合成化合物的查.
- 确定GI50值,细胞循环分析,拓酶II抑制试验和分子建模研究.
主要成果:
- 化合物3a,b,c,e表现出强大的广泛抗癌活性 (平均%GI> 47%).
- 化合物3e在G2-M阶段诱导细胞循环停止.
- 化合物3e表现出与多克索鲁比相似的拓酶II抑制,IC50为0.98μM.
- 衍生品5f显示了针对黑色素瘤SK-MEL-5的选择性细胞毒性.
结论:
- 合成的lomofloxacin衍生物通过抑制topoisomerase II.显示显著的承诺作为抗癌药物.
- 化合物3e是进一步临床前开发的有力候选物,因为它具有广泛的活性和作用机制.
- 用新型的lomofloxacin衍生物向拓酶II是癌症治疗的可行策略.
相关概念视频
Structure-Activity Relationships and Drug Design
716
Drug design is a dynamic field that involves discovering and developing new medications based on specific biological targets. This process heavily relies on structure-activity relationships (SAR) and quantitative structure-activity relationships (QSAR) to guide the design and optimization of efficient drugs.
SAR studies the intricate relationship between a drug's chemical structure and biological activity. It focuses on understanding how modifications to a drug's structure can influence...
SAR studies the intricate relationship between a drug's chemical structure and biological activity. It focuses on understanding how modifications to a drug's structure can influence...
716
Drug Discovery: Overview
7.9K
Drug discovery is a multifaceted process involving extensive screening, testing, and optimization of lead compounds to identify potential new drugs for therapeutic use. It combines several approaches, including screening large numbers of natural products, chemical modification of known active molecules, identification of new drug targets, and rational design based on biological mechanisms and drug-receptor structure. These approaches are carried out in both academic research laboratories and...
7.9K
Combined Effects of Drugs: Synergism
3.9K
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...
3.9K


