相关实验视频

Updated: Jun 23, 2025

Antimicrobial Peptides Produced by Selective Pressure Incorporation of Non-canonical Amino Acids

Antimicrobial Peptides Produced by Selective Pressure Incorporation of Non-canonical Amino Acids

Published on: May 4, 2018

第二类细菌素的异质表达和抗菌潜力

Carola Elisa Heesemann Rosenkilde¹, Ditte Olsen Lützhøft¹, Ruben Vazquez-Uribe¹

¹The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby, Denmark.

|June 20, 2024

概括

细菌素显示了微生物组编辑的潜力. 这项研究选了75种细菌素对肠道微生物的选,在体外和体外发现选择性抑制,但在体内没有.

科学领域:

微生物学微生物学
分子生物学分子生物学
基因组学就是基因组学.

背景情况:

细菌素,由细菌产生的抗微生物,被探索为微生物组调节的工具.
了解细菌素对各种肠道微生物群的活性,对于开发向疗法至关重要.

研究的目的:

研究75种II类细菌素对48种肠道微生物的抑制光谱.
为了评估选定的细菌素的疗效,试验室,外生和体内模型.
建立一种高通量方法,用于细菌素表达和查.

主要方法:

在大肠杆菌中75种II类细菌素的异质表达.
针对48种代表性肠道物种进行了体外抗微生物测定.
使用小鼠便和16S rRNA测序进行ex vivo评估.
在小鼠体内使用工程益生菌Escherichia coli Nissle 1917进行的体内研究.

主要成果:

在75种细菌素中,有22种在体外表现出对至少一种肠道物种的抑制活性.
在ex vivo小鼠便培养物中,分别选择性抑制了Actifencin和Bacteroidetocin A Lactobacillus和Bacteroides物种.
在体外和体外观察到的选择性抑制模式在体内没有复制.

结论:

第二类细菌素表现出对肠道微生物群的多种抑制特征.
活体模型对预测细菌素疗效有希望,但体内验证是必不可少的.
开发了一种强大的高通量细菌素查方法.

关键词:

不同类的表达式不同类的表达式抗微生物类的抗微生物.细菌是一种细菌.我们的肠道微生物群.微生物组调制的微生物组调制

更多相关视频

Using the Overlay Assay to Qualitatively Measure Bacterial Production of and Sensitivity to Pneumococcal Bacteriocins

Using the Overlay Assay to Qualitatively Measure Bacterial Production of and Sensitivity to Pneumococcal Bacteriocins

Published on: September 30, 2014

A Method to Assess Bacteriocin Effects on the Gut Microbiota of Mice

A Method to Assess Bacteriocin Effects on the Gut Microbiota of Mice

Published on: July 25, 2017

相关概念视频

Antibiotic Selection

Antibiotic Selection

Antimicrobial Proteins

Antimicrobial Proteins

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...

Types of RNA

Types of RNA

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...