相关实验视频

Updated: Jul 22, 2026

Qualitative and Quantitative Assays for Detection and Characterization of Protein Antimicrobials

Qualitative and Quantitative Assays for Detection and Characterization of Protein Antimicrobials

Published on: April 10, 2016

对抗微生物的快速体内毒性评估方法

Yulang Chi¹, Yunhui Peng^1,2, Shikun Zhang³

¹College of Oceanology and Food Science, Quanzhou Normal University, Quanzhou 362000, China.

|June 26, 2024

概括

像GF-17这样的抗微生物 (AMP) 显示出对抗细菌的潜力,但可能导致毒性. GF-17诱导了炎症,并减少了小鼠肺部的白细胞,突出了毒性研究的必要性.

科学领域:

生物化学生物化学
毒理学毒理学毒理学
药理学药理学是指药理学的学科.

背景情况:

抗微生物 (AMP) 是有希望的抗生素替代品,因为它们的细菌膜破坏机制.
AMP的治疗用途受其化真核细胞的潜力所限制.
GF-17是一种截断的LL-37,表现出增强的两胞性和疏水性,导致血液溶解活性增加.

研究的目的:

在小鼠模型中评估抗微生物GF-17的体内毒性.
为了比较GF-17与其母LL-37.7的毒性概况.
建立小鼠急性肺损伤模型,用于初步的AMP体内毒性评估.

主要方法:

在小鼠肺部内鼻注射LL-37和GF-17.
血液常规检查,以评估血液学参数.
支气管洗液分析和肺组织学,以评估炎症和细胞透.
监测治疗小鼠的体重变化.

主要成果:

与LL-37.7.不同的是,GF-17以剂量依赖的方式降低了白细胞和中性粒细胞的数量.
在小鼠中,GF-17治疗导致显著的体重减轻.
增加的总细胞数和中性粒细胞透在GF-17治疗小鼠的支气管洗液中表明肺炎.
组织学分析证实GF-17治疗小鼠的肺部中性粒细胞透.

结论:

在小鼠中,GF-17表现出显著的体内毒性,导致肺炎和血液细胞计数的改变.
虽然GF-17没有影响红细胞或血小板数量,但其炎症作用需要进一步调查.
对具有潜在临床应用的AMP来说,急性和长期毒性的系统评估至关重要.

关键词:

抗微生物类的抗微生物.鼠标急性肺损伤模型毒性评估毒性评估毒性评估

更多相关视频

An Efficient Method for the Synthesis of Peptoids with Mixed Lysine-type/Arginine-type Monomers and Evaluation of Their Anti-leishmanial Activity

An Efficient Method for the Synthesis of Peptoids with Mixed Lysine-type/Arginine-type Monomers and Evaluation of Their Anti-leishmanial Activity

Published on: November 2, 2016

High Throughput, Real-time, Dual-readout Testing of Intracellular Antimicrobial Activity and Eukaryotic Cell Cytotoxicity

High Throughput, Real-time, Dual-readout Testing of Intracellular Antimicrobial Activity and Eukaryotic Cell Cytotoxicity

Published on: November 16, 2016

相关概念视频

Methods to Assess Microbial Populations

Methods to Assess Microbial Populations

Assessing microbial populations is crucial for understanding microbial roles in health, ecology, and industry. Various complementary techniques—both culture-based and molecular—enable detailed analysis of microbial abundance, diversity, and function.Viable Plate CountThe viable plate count is a traditional culture-based method used to estimate the number of living microbes in a sample. After serial dilution, the sample is spread onto nutrient agar plates. Each viable cell forms a visible...

Rapid Identification of Pathogens

Rapid Identification of Pathogens

MALDI-TOF MS has transformed clinical microbiology by offering a rapid and reliable method for pathogen identification. The traditional approach to microbial identification typically involves time-consuming culture techniques and biochemical tests, which can delay the initiation of appropriate antimicrobial therapy. MALDI-TOF MS avoids these delays by using characteristic ribosomal protein mass patterns of microbial cells, enabling accurate species-level identification within minutes.Principle...

Automated Microbial Diagnostics

Automated Microbial Diagnostics

Automated diagnostic analyzers have transformed clinical microbiology by providing rapid and reliable methods for pathogen identification and antibiotic susceptibility testing. Among these systems, the Vitek 2 is widely used because it automates the traditionally labor-intensive processes of microbial identification (ID) and antibiotic susceptibility testing (AST), delivering standardized and timely results that are essential for effective patient care.Microbial Identification with ID CardsThe...