一种针对脂多糖转运体的新型抗生素
Claudia Zampaloni1, Patrizio Mattei2, Konrad Bleicher2,3
1Roche Pharma Research and Early Development, Immunology, Infectious Disease and Ophthalmology, Roche Innovation Center Basel, F. Hoffmann-La Roche, Basel, Switzerland.
Nature
|January 3, 2024
概括
一种新的性宏环抗生素对抗卡巴耐药的Acinetobacter baumannii (CRAB) 具有强烈的活性. 这种候选药物针对LptB2FGC复合体,为CRAB感染提供了有前途的新疗法.
科学领域:
- 微生物学
- 传染性疾病
- 药物发现
背景情况:
- 耐卡巴尼菌 (Acinetobacter baumannii,简称CRAB) 是一种全球性危险病原体,其治疗选择有限.
- 在过去的50多年里,还没有批准针对A. baumannii有效的新型抗生素.
- 现有的耐药性机制需要新的抗菌策略.
研究的目的:
- 识别和优化针对CRAB的新型抗生素.
- 调查一类新型大环抗生素的作用机制.
- 评估主要的MCP候选药物佐苏拉巴尔对CRAB感染的疗效.
主要方法:
- 发现和优化绑定的宏环 (MCP).
- 在体外和体内对CRAB分离物的测试.
- 涉及LptB2FGC复合物的行动研究机制.
主要成果:
- 对抗CRAB有强效活性的MCP抗生素的鉴定.
- 佐苏拉巴尔 (RG6006) 在试验室和小鼠感染模型中显示出有效性.
- 这些MCP抑制LptB2FGC复合体,阻断脂多糖体的运输.
结论:
- 连接式MCP抗生素,包括佐苏拉巴尔,是治疗CRAB感染的一类新药.
- LptB2FGC复合体是开发新抗菌药物的可行目标.
- 对于抗药性A. baumannii感染来说,佐苏拉巴尔是一种潜在的解决方案.
相关概念视频
01:23Types of RNA
63.7K
Overview
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
63.7K
01:27ABC Transporters: Importer
2.7K
ATP-binding cassette or ABC transporters are a class of ATP-driven pumps that hydrolyze ATP to move solutes across the membrane. They can be grouped into importers and exporters. While exporters are present in all domains of life, importers exist only in bacteria and some plants.
In bacteria, based on the number of transmembrane helices and the chemical nature of their substrates, the ABC importers can be divided into three types:
In bacteria, based on the number of transmembrane helices and the chemical nature of their substrates, the ABC importers can be divided into three types:
2.7K