五合一抗菌策略:一个Mn(I) 综合体照亮了对抗结核病的斗争.
Maryam Bashir1, Md Kausar Raza2
1Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India.
Chembiochem : a European journal of chemical biology
|September 29, 2025
概括
一种基于的新型分子Mn-PTP提供了一种针对结核病的新策略. 被光激活后,它释放出多种治疗剂来杀死细菌和治愈伤口,性能优于目前的治疗方法.
科学领域:
- 药用化学 医学化学
- 光动力学疗法 光动力学疗法
- 传染性疾病 传染性疾病
背景情况:
- 结核病 (TB) 仍然是主要的传染病杀手,主要是由于Mycobacterium tuberculosis (Mtb) 的耐药性增加.
- 传统的治疗方法是不够的,需要创新的治疗方法.
研究的目的:
- 引入一种新的基于的可光激活一氧化碳释放分子 (Mn-PTP) 作为多方位的治疗剂.
- 评估Mn-PTP对Mycobacterium smegmatis的疗效及其在治疗结核病感染中的潜力.
主要方法:
- 合成和特征的Mn-PTP复合体.
- 在体外评估抗菌活性,生物膜破坏和细胞毒性.
- 在体内评估受感染小鼠的伤口愈合.
主要成果:
- Mn-PTP在体外表现出强大的抗菌活性 (MIC90 = 3.11 μM) 和对M. smegmatis的显著生物膜破坏.
- 激活Mn-PTP的光会触发CO的释放,产生ROS,一种有毒的配体,并形成MnO (x) 种,缓解缺氧.
- 在体内研究表明,Mn-PTP在感染小鼠中显著加快了伤口愈合,超过了异化的疗效.
- 在正常细胞中观察到最小的细胞毒性,表明高选择性.
结论:
- Mn-PTP代表了一种多功能"一对一"的治疗平台,结合了光动力学疗法,CO输送和基于金属的反应性.
- 这种光激活剂通过释放多种活性成分有效地对抗细菌感染.
- Mn-PTP为下一代基于金属的治疗方法提供了一个有希望的蓝图,用于对抗持久性菌根菌感染.
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
2.3K
12:39Antimicrobial Susceptibility Testing of Mycobacterium Tuberculosis Complex for First and Second Line Drugs by Broth Dilution in a Microtiter Plate Format
Published on: June 24, 2011
38.8K
相关概念视频
Pulmonary Tuberculosis V
540
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...
540
Combined Effects of Drugs: Synergism
6.8K
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...
6.8K
Pulmonary Tuberculosis IV
478
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...
478
Defense Against Bacterial Pathogens
2.6K
The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
2.6K
Pulmonary Tuberculosis I
838
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...
838
