细胞状态过渡分析确定了改善通过易感巨细胞控制结核菌菌感染的干预措施
Shivraj M Yabaji1, Oleksii S Rukhlenko2, Sujoy Chatterjee1
1The National Emerging Infectious Diseases Laboratories (NEIDL), Boston University, Boston, MA, USA.
Science advances
|September 27, 2023
概括
研究人员确定了一种基因表达模式,区分了结核病易感和耐药的巨细胞. 他们使用细胞状态过渡评估和调节 (cSTAR) 发现化合物,这些化合物将易受性巨细胞转移到耐药性,增强对Mycobacterium结核病的保护.
科学领域:
- 免疫学和传染病.
- 分子生物学和基因组学
- 药物发现和治疗开发.
背景情况:
- 控制细胞状态转变对于推动生物研究和医学至关重要,特别是在开发有效疗法方面.
- 巨细胞在对结核病 (TB) 的免疫反应中起着至关重要的作用,在结核病敏感和结核病耐药个体中观察到不同的激活状态.
- 异常的巨细胞激活可以加剧结核病,强调了针对性干预的必要性.
研究的目的:
- 为了识别一种特定的转录特征,使激活的巨细胞与结核病易感和抗结核病的小鼠有所区别.
- 发现能够调节巨细胞转录状态的化学化合物,将结核病敏感巨细胞转移到抗结核病的表型.
- 为了验证已识别的化合物的治疗潜力,以增强巨细胞对毒性 * Mycobacterium 结核病 * 感染的抵抗力.
主要方法:
- 转录分析,以确定结核病易感和结核病耐药小鼠的巨细胞之间的分子差异.
- 应用细胞状态过渡评估和调节 (cSTAR) 方法,结合查RNA测序.
- 化学干扰查,以确定将TNF激活的结核病敏感巨细胞转向抗结核病状态的化合物.
主要成果:
- 鉴定出一种独特的转录特征,特征是结核病敏感小鼠和结核病耐药小鼠中的活性化巨细胞.
- 通过cSTAR方法,成功地发现了改变巨细胞转录状态的化学扰动.
- 通过这种方法识别的化合物被证明可以增强对结核病敏感的小鼠巨细胞对毒性*Mycobacterium结核病*的抵抗力.
结论:
- 该研究成功地确定了与巨细胞对结核病的敏感性或耐药性相关的转录特征.
- cSTAR方法有效地识别化学调节剂,这些调节剂可以将细胞状态转向所需的治疗表型.
- 这些已识别的化合物有望通过增强宿主巨细胞免疫力来开发新的治疗策略来对抗结核病.
更多相关视频
06:26Author Spotlight: Optimizing CFU Determination for Efficient Assessment of TB Vaccine Efficacy and Antigen Presentation Analysis
Published on: July 28, 2023
2.3K
09:34An Automated Culture System for Use in Preclinical Testing of Host-Directed Therapies for Tuberculosis
Published on: August 16, 2021
1.9K
相关概念视频
Pulmonary Tuberculosis II
256
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...
256
Pulmonary Tuberculosis V
194
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...
194
Defense Against Bacterial Pathogens
1.4K
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...
1.4K
