对基于全基因组的抗微生物耐药性等离子体研究的挑战和考虑
Jia Qi Beh1, Ryan R Wick1,2, Benjamin P Howden1,2,3,4
1Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Australia.
Antimicrobial agents and chemotherapy
|November 11, 2025
概括
抗菌素耐药性 (AMR) 质体迅速传播,威胁到抗生素. 基因组学为研究这些移动遗传元素提供了强大的工具,但生物信息学对有效的公共卫生战略仍然存在挑战.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
背景情况:
- 等离子体是染色体外遗传元素,对于传播抗菌素耐药性 (AMR) 基因至关重要.
- 像blaCTX-M和vanA这样的关键AMR基因通常分别在格拉姆阴性和格拉姆阳性细菌中由等离子体传播.
- 等离子体的多样性和水平转移对抗生素疗效构成重大威胁.
研究的目的:
- 审查用于AMR等离子体研究的生物信息工具和数据库的挑战.
- 总结关键的生物信息分析和用于研究AMR等离子体的工具.
- 突出基因组学对AMR等离子体研究的影响,并确定未来研究方向.
主要方法:
- 关于AMR等离子体和相关生物信息工具的当前文献的综述.
- 基于全基因组测序的AMR等离子体研究中的挑战分析.
- 综合现有的生物信息学方法用于等离子体分析.
主要成果:
- 基因组学显著推进了对抗药物耐药性病原体中的AMR等离子体的研究.
- 现有的生物信息工具和数据库在处理等离子体多样性和水平转移方面存在局限性.
- 有效的公共卫生战略需要克服当前生物信息学挑战.
结论:
- 基因组方法正在彻底改变AMR等离子体研究.
- 解决生物信息学的局限性对于在公共卫生中利用等离子体基因组学至关重要.
- 未来的研究应该专注于开发强大的工具来打击AMR等离子体的威胁.
相关概念视频
Antibiotic Selection
59.3K
Overview
59.3K
Genomic DNA in Prokaryotes
48.2K
The genome of most prokaryotic organisms consists of double-stranded DNA organized into one circular chromosome in a region of cytoplasm called the nucleoid. The chromosome is tightly wound, or supercoiled, for efficient storage. Prokaryotes also contain other circular pieces of DNA called plasmids. These plasmids are smaller than the chromosome and often carry genes that confer adaptive functions, such as antibiotic resistance.
Genomic Diversity in Bacteria
Although bacterial genomes are much...
Genomic Diversity in Bacteria
Although bacterial genomes are much...
48.2K
Plasmids
1.1K
Plasmids are extrachromosomal DNA molecules found in bacteria, archaea, and some eukaryotic microbes like yeast. These small, circular DNA structures typically contain fewer than 30 genes, although some may exist linearly. Plasmids vary in their number within a cell, known as copy number. Single-copy plasmids are present in one copy per cell and multi-copy plasmids are present in multiple copies, reaching over 100 copies per cell.Plasmids usually replicate independently of the chromosomal DNA...
1.1K
Modern Molecular Taxonomy
565
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
565
Development of Antibiotic Resistance
1.2K
Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
1.2K


