新的特里亚佐洛皮里米丁对Mycobacterium tuberculosis的活性有所提高
Sreekanth Reddy Pogula1, Aditi Deshpande1, Eric Greve1
1Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, Washington 98109, United States.
ACS medicinal chemistry letters
|June 18, 2025
概括
通过抑制QcrB,新的三烯胺类类似物显示出对抗结核病的强有力的活性. 这些新型化合物表现出优异的选择性和改善的代谢稳定性,为新的抗结核药物开发提供了有前途的线索.
科学领域:
- 药用化学 医学化学
- 药物发现 药物发现 药物发现
- 抗菌剂 抗菌剂 抗菌剂
背景情况:
- 结核病 (TB) 仍然是一个重大的全球卫生挑战,需要开发新型治疗剂.
- 之前的研究已经确定了通过抑制终端细胞染色体氧化酶 (QcrB) 具有抗结核活性的三烯胺基支架.
研究的目的:
- 探索和优化三烯系列,以提高抗 Mycobacterium 结核病的功效和改善物理化学特性.
- 合成和评估新型类似物,其中包括对三胺核心的修改和C-5位置的替代物.
主要方法:
- 采用了三步合成,包括凝结,基组转化为化物,以及与各种氨基的SNAr反应.
- 合成的类似物被选为体外抗结核活性 (最小抑制度 - MIC) 和对HepG2细胞系的细胞毒性.
- 使用人类和小鼠肝脏显微体评估了代谢稳定性.
主要成果:
- 确定了几种具有低于1μM的最小抑制度 (MIC) 的强效类型.
- 在三烯胺环的C-5位置观察到甲基或二烯部分的最佳活性.
- 最有前途的类似物显示出优异的选择性,没有观察到细胞毒性 (CC50>>100μM) 和改善了代谢稳定性.
结论:
- 修改后的三甲胺类同类物,特别是那些含有或烯替代物的物,代表了作为新型抗结核药物进一步开发的有希望的候选者.
- 这些化合物具有高强度,低细胞毒性和增强的代谢稳定性的有利平衡,解决了药物开发的关键标准.
更多相关视频
07:50Author Spotlight: Scalable Drug Screening Protocol for Efficient Discovery of M. abscessus Treatments
Published on: October 25, 2024
2.0K
09:57Visualization of the Charcoal Agar Resazurin Assay for Semi-quantitative, Medium-throughput Enumeration of Mycobacteria
Published on: December 14, 2016
10.6K
相关概念视频
01:28Pulmonary Tuberculosis V
249
Medical management of tuberculosis (TB) patients involves a comprehensive approach that includes diagnosis, treatment, and monitoring. The specific strategies can vary depending on the type of tuberculosis (latent or active), the patient's overall health status, and other considerations.
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the...
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the...
249
01:26Pulmonary Tuberculosis IV
212
Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
212
01:31Pulmonary Tuberculosis III
459
Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
The first classification is based on the development of the disease, and it includes the following categories:
The first classification is based on the development of the disease, and it includes the following categories:
459
01:28Pulmonary Tuberculosis II
389
Tuberculosis, or TB, is a bacterial infectious disease caused by Mycobacterium tuberculosis. While its primary impact is on the lungs, leading to pulmonary tuberculosis, it can also affect various other organs, a condition referred to as extrapulmonary tuberculosis.
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
389
01:29Pulmonary Tuberculosis I
335
Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
335
01:27Combined Effects of Drugs: Synergism
4.9K
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...
4.9K