相关实验视频
Updated: Jan 30, 2026

11:51
Facile Preparation of 4-Substituted Quinazoline Derivatives
Published on: February 15, 2016
12.4K
基纳佐林-4-1衍生物的功能性蛋白质学 针对蛋白质组的蛋白质组
Elva Morretta1, Claudia Finamore1, Rosa Barbato1
1Department of Pharmacy, University of Naples "Federico II", Via D. Montesano, 49, I-80131, Naples, Italy.
ChemMedChem
|January 28, 2026
概括
新的quinazolinone衍生物显示出作为抗癌药物的前景. 化合物4k有效地抑制了蛋白酶体.
科学领域:
- 药用化学 医学化学
- 分子生物学分子生物学
- 蛋白质组学是指蛋白质组学.
背景情况:
- 基纳索林是具有多样性的支架,具有多样化的生物活动.
- 他们因其在开发新型治疗剂方面的潜力而受到认可.
- 以前的研究强调了它们的抗真菌,抗结核,抗高血压,抗癌和抗病毒特性.
研究的目的:
- 为了合成和评估新的4-(3-H) -quinazolinone衍生物的抗癌活性.
- 为了确定最强效化合物的特定生物标.
- 探索这些化合物作为新型抗癌药物的潜力.
主要方法:
- 一个聚焦的图书馆的合成4-(3-H) -quinazolinones.
- 对DU-145前列腺癌细胞的细胞毒性测定.
- 使用药物亲和度响应目标稳定性 (DARTS) 和有针对性的受限蛋白解-多重反应监测-质谱法 (t-LiP-MRM-MS) 进行交互原子形.
- 在体外和in silico研究中分析蛋白质-配体相互作用.
- 在活的DU-145细胞中进行功能分析.
主要成果:
- 化合物4k对DU-145前列腺癌细胞表现出显著的细胞毒性活性.
- 蛋白质酶子单元,特别是β-5子单元,被确定为化合物4k的关键生物标.
- 化合物4k被证实是蛋白质体β-5亚单元的基米素类活性的抑制剂.
- 在体外和体内分析提供了对蛋白质-配体相互作用的见解.
结论:
- 化合物4k是一种强大的基于quinazolinone的新型蛋白质体β-5亚单元的抑制剂.
- 鉴定出的作用机制表明,有可能开发新的抗癌疗法.
- 这项研究为进一步开发作为抗癌剂的奇纳佐利诺衍生物提供了框架.
相关概念视频
The Proteasome
10.2K
Eukaryotic cells can degrade proteins through several pathways. One of the most important amongst these is the ubiquitin-proteasome pathway. It helps the cell eliminate the misfolded, damaged, or unwarranted cytoplasmic proteins in a highly specific manner.
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. A series of enzymes carry out the ubiquitination of the target proteins - E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. A series of enzymes carry out the ubiquitination of the target proteins - E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
10.2K
The Proteasome
1.7K
Eukaryotic cells can degrade proteins through several pathways. One of the most important among these is the ubiquitin-proteasome pathway. It helps the cell eliminate the misfolded, damaged, or unwarranted cytoplasmic proteins in a highly specific manner.
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. This involves participation of a series of enzymes including— E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. This involves participation of a series of enzymes including— E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
1.7K
The Proteasome
4.6K
4.6K
The Derivative as a Function
82
A derivative quantifies how a function changes in response to variations in its input. It provides a localized rate of change, representing the slope of the tangent line to the function at any given point. When this process is applied systematically across the entire domain of the function, it yields a new function—the derivative function—which encodes the rate of change at every point. This concept is central to calculus and essential for understanding the behavior of dynamic...
82
The Proteasome Structure
1.7K
The ubiquitin-proteasome pathway is a well-known mechanism utilized by eukaryotic cells to remove cytoplasmic proteins that are misfolded, damaged, or no longer needed. In this pathway, the protein that needs to be eliminated undergoes a process called ubiquitination, where a chain of ubiquitin molecules is attached to the 48th lysine residue of the target protein. This ubiquitin modification helps the proteasome distinguish between a target protein and a healthy protein.
The proteasome is an...
The proteasome is an...
1.7K
Derivatives of the Trigonometric Functions
450
The motion of a Ferris wheel rotating at a constant speed provides an intuitive model for understanding trigonometric functions and their derivatives. As a rider moves along the circular path, the vertical height above the ground changes smoothly and periodically over time. This vertical motion can be accurately represented by a sine function, reflecting the repeating pattern of ascent and descent inherent to circular motion.Height and Rate of ChangeIf the rider’s height is modeled by a...
450

