基于机器学习的发现,GW3965作为一种治疗性化合物,用于对抗侵入性emm92型A组链球菌
Research square
|February 27, 2026
概括
一个机器学习模型将GW3965识别为对抗药物耐药性A组链球菌感染的潜在治疗方法. 这种FDA批准的药物显著减少了皮肤感染中的细菌,并在临床前模型中促进了伤口愈合.
科学领域:
- 微生物学 微生物学
- 药理学 药理学是指药理学的学科.
- 计算生物学 计算生物学
背景情况:
- 多种耐药性*emm92*型A组链球菌 (GAS) 菌株正在引起侵入性感染,特别是在美国注射毒品的人群中.
- 抗菌素耐药性的出现需要新的治疗策略.
研究的目的:
- 识别和重新使用FDA调查的化合物作为抗微生物药物来对抗多药性耐药性*emm92*型GAS.
- 发现针对侵袭性GAS感染的新疗法.
主要方法:
- 一个机器学习模型被训练到对2560种生物活性化合物的*emm92*-iGAS的生长反应.
- 使用受过训练的模型,对6111种FDA评估的药物进行了*in silico*屏幕.
- 在细菌生存测定,人类皮肤等效模型和皮肤和软组织感染的小鼠模型中对最预测的化合物 (GW3965) 的实验验证.
主要成果:
- 机器学习模型成功预测了GW3965作为*emm92*-iGAS.的强有力的抑制剂.
- 在6.25μM的最小抑制度 (MIC) 下,GW3965显示iGAS存活率降低了99%.
- 在人类皮肤模型中,GW3965治疗导致了完整的伤口关闭,并在小鼠模型中显著减少了病变大小和细菌负担.
结论:
- 机器学习驱动的药物重定向加速了GW3965作为可行的治疗候选者的发现.
- GW3965在治疗侵袭性*emm92*-iGAS皮肤和软组织感染方面表现有前途.
更多相关视频
09:26Identification of Antibacterial Immunity Proteins in Escherichia coli using MALDI-TOF-TOF-MS/MS and Top-Down Proteomic Analysis
Published on: May 23, 2021
3.7K
08:37The Application of Open Searching-based Approaches for the Identification of Acinetobacter baumannii O-linked Glycopeptides
Published on: November 2, 2021
2.6K
相关概念视频
Defense Against Bacterial Pathogens
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...
Chemical Agents for Microbial Control
Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...
Biological Methods for Microbial Control
Biological agents offer an effective means of controlling microbial growth by leveraging natural processes like predation, competition, and the secretion of antimicrobial substances.Predatory bacteria such as Bdellovibrio species target and kill pathogens like Salmonella and E. coli. They are widely used in poultry farms to control infections. Myxococcus species help combat plant-pathogenic fungi. These naturally occurring predators serve as eco-friendly alternatives to chemical pesticides and...
Antimicrobial Effectiveness
The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
iChip
The cultivation of environmental microorganisms has long been hindered by the inability to replicate complex native conditions in vitro. The isolation chip (iChip) addresses this limitation by facilitating the growth of previously uncultivable microorganisms through in situ incubation. Designed for high-throughput microbial cultivation, the iChip comprises hundreds of microchambers, each capable of housing a single microbial cell. These microchambers are loaded with a mixture of molten agar and...
Inhibitors of Gram-positive Cell Wall Synthesis
Bacterial cell walls are typically rigid structures composed mainly of peptidoglycan, a mesh-like polymer that provides mechanical strength and maintains cell shape. The synthesis of peptidoglycan is a crucial process in bacterial growth and serves as a primary target for many antibiotics.Mechanism of Action of Beta-Lactam AntibioticsBeta-lactam antibiotics, such as penicillin, inhibit peptidoglycan synthesis in actively growing cells. These antibiotics share a characteristic four-membered...
