细菌 siderophores 在病原发生的非经典作用
1Department of Biosciences, Durham University, Durham, United Kingdom.
Frontiers in cellular and infection microbiology
|October 7, 2024
概括
细菌利用 siderophores 获取铁,但这些分子在病原发生过程中也有其他作用. 本综述探讨了除铁化外的 siderophores 的多样性功能,强调它们对细菌毒性的影响.
科学领域:
- 微生物学 微生物学
- 细菌病原体的产生
- 分子生物学分子生物学
背景情况:
- 铁对于细菌在宿主环境中的生存和生长至关重要.
- 细菌产生 siderophores 清理铁,这是一个关键的毒性因素.
- 以前的研究重点是 siderophores 的铁获取机制.
研究的目的:
- 审查 siderophores 的新兴非铁化功能.
- 探索 siderophores 在支持细菌致病的多样性作用.
- 提供关于 siderophore 函数的最新发现的综合概述.
主要方法:
- 文献综述和近期研究成果的综合.
- 分析研究的分析研究 siderophore 作用超越铁的获取.
- 整合关于金属离子获取,应力耐受性,信号传递,ROS诱导和微活性中的 siderophore 功能的数据.
主要成果:
- 赛德罗获得非铁金属离子.
- 赛德罗支持细菌耐受金属诱导和反应性氧物种 (ROS) 诱导的压力.
- 光体介导信号通路,诱导ROS形成,并在IIb类微细胞中发挥作用.
结论:
- 除了铁化外, siderophores 还表现出各种功能,这些功能有助于细菌的病变发生.
- 了解这些多方面的作用对于开发新的抗病毒策略至关重要.
- 这篇综述强调了 siderophore 在微生物学和传染病方面的研究范围不断扩大.
更多相关视频
12:36High-throughput Siderophore Screening from Environmental Samples: Plant Tissues, Bulk Soils, and Rhizosphere Soils
Published on: February 9, 2019
12.6K
08:36Quantifying Yersinia pseudotuberculosis Type III Secretion System Activity Following Iron Starvation and Anaerobic Growth
Published on: May 31, 2024
421
相关概念视频
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
Microbial Nutrition
3
Organisms exhibit remarkable metabolic diversity, categorized based on how they acquire energy and carbon. These strategies enable survival in various ecological niches and are essential for maintaining energy flow and nutrient cycling within ecosystems.Energy and Carbon SourcesOrganisms are classified as phototrophs or chemotrophs based on energy acquisition. Phototrophs use light as their energy source, while chemotrophs rely on oxidizing chemical compounds. Further differentiation arises...
3
Bacterial Phylum Bacteroidota
The phylum Bacteroidota includes over 700 species classified into four primary orders: Bacteroidales, Cytophagales, Flavobacteriales, and Sphingobacteriales. These gram-negative, non-sporulating rods exhibit saccharolytic capabilities and can be aerobic or fermentative, encompassing obligate aerobes, facultative aerobes, and obligate anaerobes. Many species display gliding motility, though some are nonmotile or use flagella. The genus Bacteroides is well-studied due to its significant role in...
Gene Regulation in Microbial Communities: Quorum Sensing
4
Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
4
Antimicrobial Proteins
945
Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
945
Gram-negative Bacterial Protein Secretion Systems
2
Gram-negative bacteria utilize sophisticated protein secretion systems to transport proteins across their double-membrane envelope into the extracellular environment or host cells. Based on their mechanism of action, these systems are classified into one-step and two-step pathways.One-Step Secretion Systems (Types I, III, IV, and VI)One-step secretion systems bypass the periplasm entirely, forming a continuous channel that spans both the inner and outer membranes:Type I Secretion System (T1SS):...
2
