相关实验视频
Updated: Sep 14, 2025

09:11
Assays for Validating Histone Acetyltransferase Inhibitors
Published on: August 6, 2020
6.6K
基于quinazoline-triazole的新型N-hydroxybenzamides/N-hydroxypropenamides作为HDAC抑制剂:设计,合成,生物评估和对接研究
Nguyen Phuong Dung1, Hwa Kyung Kim2, Nguyen Thi Nga1
1Hanoi University of Pharmacy 13-15 Le Thanh Tong Hanoi Vietnam namnh@hup.edu.vn anhdt@hup.edu.vn +84-4-39332332 +84-4-39330531.
RSC advances
|July 23, 2025
概括
针对希斯脱乙酶 (HDAC) 的新型胺酸显示出强大的抗癌活性. 某些N-基胺和N-基胺衍生物有效抑制HDAC和癌细胞生长,一些化合物对癌细胞具有显著的选择性.
科学领域:
- 药用化学 医学化学
- 有机合成 有机合成
- 癌症生物学 癌症生物学
- 酶抑制可以抑制酶.
背景情况:
- 基因组脱乙酶 (HDACs) 是关键的表观遗传调节剂,与各种癌症有关.
- 开发具有强大的抗癌活性和选择性的新型HDAC抑制剂仍然是一个重大的治疗挑战.
- 基纳佐林和三醇支架在药物发现中是公认的药剂.
研究的目的:
- 设计,合成和评估新型的N-基胺和N-基胺衍生物,其中包括4-oxoquinazoline和1,2,3-triazole支架.
- 评估合成的化合物的素脱乙酶 (HDAC) 抑制和抗癌活性.
- 研究这些新型化合物的结构-活性关系 (SAR) 和选择性.
主要方法:
- 合理设计和合成两种新系列的胺酸.
- 在体外评估HDAC抑制活性,使用HeLa细胞的核提取物.
- 对人类癌细胞系 (SW620,MDA-MB-231) 和正常纤维细胞 (MRC-5) 的细胞毒性测定.
- 细胞循环分析 (G2/M 停止) 和细胞亡测定.
- 对HDAC异型的分子对接研究.
主要成果:
- 与N-hydroxypropenamides相比,N-hydroxybenzamide衍生物显示出更强的HDAC抑制.
- 化合物7h (7-Br) 和7c (7-CH3) 显示出强烈的HDAC抑制 (IC50值为0.142和0.146μM,与SAHA可比).
- 素替代,特别是在位置6 (例如,7d,11d),显著增强了对癌细胞的细胞毒性活性.
- 大多数化合物对癌细胞的毒性比正常纤维细胞更大.
- 化合物7d和11d诱导G2/M阶段停止和亡.
结论:
- 设计的N-基胺和N-基胺衍生物是强大的HDAC抑制剂,具有显著的抗癌特性.
- 结构修改,特别是quinazoline核心的化,对于优化HDAC抑制和细胞毒性至关重要.
- 化合物7d和11d由于其强大的细胞毒性,诱导细胞循环停止和细胞亡的能力以及选择性,显示出作为抗癌药物的有前途潜力.
相关概念视频
Antihypertensive Drugs: Thiazide-Class Diuretics
883
Thiazide diuretics are sulfonamide derivatives featuring a benzothiadiazine ring system in their molecular structure. Based on this structure, thiazide diuretics can be categorized into two groups: thiazide-type and thiazide-like diuretics. Thiazide-type diuretics, including hydrochlorothiazide and chlorothiazide, consist of a benzothiadiazine backbone with an attached sulfonamide group. Thiazide-like diuretics, such as chlorthalidone and indapamide, lack the thiazide ring but demonstrate...
883
Diazonium Group Substitution: –OH and –H
2.9K
Nitrous acid, a weak acid, is prepared in situ via the reaction of sodium nitrite with a strong acid under cold conditions. This nitrous acid prepared in situ reacts with primary arylamines to form arenediazonium salts. Such reactions are known as diazotization reactions. As shown in Figure 1, the formation of arenediazonium salts begins with the decomposition of nitrous acid in an acidic solution to give nitrosonium ions.
2.9K
Antidepressant Drugs: MAOIs and Other Agents
366
Atypical antidepressants, including bupropion (Wellbutrin), mirtazapine (Remeron), nefazodone (Serzone), trazodone (Desyrel), and vilazodone (Viibryd), offer unique mechanisms of action. Bupropion weakly inhibits dopamine and norepinephrine reuptake, aiding depression treatment and smoking cessation, with a low risk of sexual dysfunction. Mirtazapine enhances serotonin and norepinephrine neurotransmission, leading to sedation, increased appetite, and weight gain. As a result, it helps treat...
366
Dipeptidyl Peptidase 4 Inhibitors
262
Dipeptidyl peptidase 4 (DPP-4) is a serine protease widely distributed in the body. It's involved in the inactivation of GLP-1 and GIP hormones, which are crucial for insulin regulation. DPP-4 inhibitors, such as sitagliptin (Januvia), saxagliptin (Onglyza), linagliptin (Tradjenta), alogliptin (Nesina), and vildagliptin (Galvus), help increase the proportion of active GLP-1, enhancing insulin secretion. These inhibitors work by competitively binding to DPP-4. This binding causes a...
262
Chemotherapy-Induced Nausea and Vomiting: Dopamine Receptor Antagonists
448
Dopamine receptor antagonists, also known as antipsychotic agents, are critical in managing chemotherapy-induced vomiting. These antiemetic agents block dopamine receptors in the chemoreceptor trigger zone (CTZ), inhibiting signal transmission to the vomiting center. Antipsychotic agents encompass phenothiazines (PTZ), butyrophenones, benzamides, and thienobenzodiazepines (Zyprexa), which are utilized for their antiemetic and sedative properties.
Phenothiazines, such as prochlorperazine...
Phenothiazines, such as prochlorperazine...
448
Sedatives and Hypnotics Drugs: Miscellaneous Agents
245
Sedatives and hypnotics encompass a wide range of substances, each with its unique mechanism of action, uses, and potential adverse effects.
Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...
Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...
245

