综合性血蛋白学识别了结核病特定的诊断生物标志物
Hannah F Schiff1,2, Naomi F Walker3, Cesar Ugarte-Gil4,5
1NIHR Biomedical Research Centre, School of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.
JCI insight
|March 21, 2024
概括
血液中的新蛋白质生物标志物可以准确检测活性肺结核 (TB) 并将其与其他呼吸道疾病区分开来. 这一发现为对抗全球结核病流行病的临床查提供了有前途的工具.
科学领域:
- 生物化学和分子生物学
- 传染性疾病 传染性疾病
- 生物标志物发现发现
背景情况:
- 全球结核病 (TB) 流行需要新的生物标志物来识别传染病患者.
- 活跃肺结核中的血蛋白质样本可以作为诊断指标.
- 将结核病与其他呼吸道感染区分开来需要改进的诊断工具.
研究的目的:
- 识别和验证用于诊断肺结核的血蛋白生物标志物.
- 为了区分结核病例与健康个体和患有其他呼吸道感染的患者.
- 评估这些生物标志物的潜力,用于临床查测试.
主要方法:
- 采用敏感的双重质谱方法分析南非和秘鲁队列中的血蛋白质.
- 利用生物信息分析,包括线性建模和网络相关性,以确定差异表达的蛋白质.
- 在使用基于抗体的近距离扩展试验的不同族群中验证了候选生物标志物.
主要成果:
- 通过严格的生物信息学分析确定了118种差异表达的蛋白质.
- 已确认具有高灵敏度和特异性的结核病特异性宿主生物标志物.
- 一个6蛋白小组 (FETUB,FCGR3B,LRG1,SELL,CD14,ADA2) 有效地区分了肺结核患者.
结论:
- 六种蛋白质生物标志物面板符合世界卫生组织对结核病分类测试的标准.
- 这些新型生物标志物显示出开发为近患者结核病查试验的潜力.
- 这些发现有助于缩小全球结核病流行病中病例检测差距.
相关概念视频
Pulmonary Tuberculosis IV
142
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...
142
MALDI-TOF Mass Spectrometry
4.8K
Mass spectrometry is a powerful characterization technique that can identify and separate a wide variety of compounds ranging from chemical to biological entities, based on their mass-to-charge ratio (m/z). The instruments that allow this detection, known as mass spectrometers, have three components: an ion source, a mass analyzer, and a detector. These spectrometers differ based on the nature of their ion source and analyzers.
Matrix-assisted laser desorption ionization (MALDI) is a commonly...
Matrix-assisted laser desorption ionization (MALDI) is a commonly...
4.8K
Pulmonary Tuberculosis III
325
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:
325
Peptide Identification Using Tandem Mass Spectrometry
6.4K
Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
6.4K


