相关实验视频
Updated: Jul 8, 2025

05:07
Microwave-Assisted Preparation of 1-Aryl-1H-pyrazole-5-amines
Published on: June 23, 2019
6.7K
新型的pyrazolo[3,4-d]pyrimidine衍生物:设计,合成,抗癌评估,VEGFR-2抑制和抗血管原性活性
Ahmed M Abdelhamed1, Rasha A Hassan2, Hanan H Kadry2
1Pharmaceutical Organic Chemistry Department, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology (MUST) 6th of October City Egypt amira.helwa@must.edu.eg.
RSC medicinal chemistry
|December 18, 2023
概括
新型的pyrazolo[3,4-d]pyrimidine衍生物显示出强大的抗癌活性,特别是12b化合物对抗乳腺癌细胞系. 这种化合物抑制VEGFR-2,破坏HUVEC迁移,并诱导亡,为癌症治疗提供了一个有前途的新途径.
科学领域:
- 药用化学 医学化学
- 在瘤学瘤学.
- 药理学 药理学 是一个学科.
背景情况:
- 皮拉佐洛[3,4-d]胺基支架以其多样化的生物活动而闻名.
- 开发具有提高疗效和向机制的新型抗癌药物是瘤学的关键需求.
研究的目的:
- 合成和评估针对NCI-60人类瘤细胞系小组的抗增殖活性的新型pyrazolo[3,4-d]pyrimidine衍生物.
- 研究强效衍生物的作用机制,重点关注VEGFR-2抑制,内皮细胞迁移,细胞循环停止和亡诱导.
主要方法:
- 12种pyrazolo[3,4-d]pyrimidine衍生物的合成.
- 使用NCI-60人类瘤细胞系面板进行体外抗增殖试验.
- 测试VEGFR-2抑制活性.
- 人的静脉内皮细胞 (HUVEC) 迁移试验.
- 细胞周期分析和细胞亡测定 (包括卡斯巴-3水平的确定).
主要成果:
- 化合物12a-d对MDA-MB-468和T-47D乳腺癌细胞系表现出显著的抗增殖活性.
- 化合物12b显示出最高的功效,其IC50值为3.343 ± 0.13μM (MDA-MB-468) 和4.792 ± 0.21μM (T-47D).
- 化合物12b强烈抑制了VEGFR-2 (IC50 = 0.063 ± 0.003 μM),在72小时内减少了23%的HUVEC迁移,诱导了S相细胞周期停止,并在MDA-MB-468细胞中增加了18.98倍的细胞亡和7.32倍的caspase-3水平.
结论:
- 新型的pyrazolo[3,4-d]pyrimidine衍生物,特别是化合物12b,显示出作为抗癌剂的显著前景.
- 化合物12b的机制涉及VEGFR-2抑制,抗血管性作用,细胞循环停止和细胞亡诱导,支持其在癌症治疗中的潜在治疗应用.
相关概念视频
Targeted Cancer Therapies
7.6K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.6K
Inhibition of Cdk Activity
4.8K
The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...
4.8K
Cancer Therapies
7.7K
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
7.7K

