Antimicrobial peptide A20L: in vitro and in vivo antibacterial and antibiofilm activity against carbapenem-resistant Klebsiella pneumoniae

doi:10.1128/spectrum.03979-23

科研成果详情

题名	Antimicrobial peptide A20L: in vitro and in vivo antibacterial and antibiofilm activity against carbapenem-resistant Klebsiella pneumoniae
作者	Huijing Zhou 1; Xin Du1; Yue Wang 1; Jingchun Kong2; Xiaodong Zhang1; Weixiang Wang1; Yao Sun 1; Cui Zhou1; Tieli Zhou1; Jianzhong Ye1
发表日期	2024-07-09
发表期刊	Microbiology spectrum 影响因子和分区
语种	英语
原始文献类型	Journal Article
关键词	A20L Klebsiella pneumoniae antibacterial antibiofilm antimicrobial peptide carbapenem-resistance
其他关键词	GENERATION ; LENGTH
摘要	Antimicrobial resistance has become a growing public health threat in recent years. Klebsiella pneumoniae is one of the priority pathogens listed by the World Health Organization. Antimicrobial peptides are considered promising alternatives to antibiotics due to their broad-spectrum antibacterial activity and low resistance. In this study, we investigated the antibacterial activity of antimicrobial peptide A20L against K. pneumoniae. In vitro antibacterial activity of A20L against K. pneumoniae was demonstrated by broth microdilution method. We confirmed the in vivo efficacy of A20L by Galleria mellonella infection model. In addition, we found that A20L also had certain antibiofilm activity by crystal violet staining. We also evaluated the safety and stability of A20L, and the results revealed that at a concentration of ≤128 µg/mL, A20L exhibited negligible toxicity to RAW264.7 cells and no substantial toxicity to G. mellonella. A20L was stable at different temperatures and with low concentration of serum [5% fetal bovine serum (FBS)]; however, Ca2+, Mg2+, and high serum concentrations reduced the antibacterial activity of A20L. Scanning electron microscope (SEM) and membrane permeability tests revealed that A20L may exhibit antibacterial action by damaging bacterial cell membranes and increasing the permeability of outer membrane. Taken together, our results suggest that A20L has significant development potential as a therapeutic antibiotic alternative, which provides ideas for the treatment of K. pneumoniae infection.}, {AbstractText=A20L showed antibacterial and anti-infective efficacy in vitro and in vivo against Klebsiella pneumoniae. It can have an antibacterial effect by disrupting the integrity of cell membranes. A20L displayed anti-biofilm and anti-inflammatory activity against carbapenem-resistant K. pneumoniae and certain application potential in vivo, which provides a new idea for the clinical treatment of biofilm-associated infections
资助项目	Key Laboratory of Clinical Laboratory Diagnosis and Translational Research of Zhejiang Province [2022E10022]
出版者	AMER SOC MICROBIOLOGY
ISSN	2165-0497
卷号	12 期号:8
DOI	10.1128/spectrum.03979-23
页数	14
WOS类目	Microbiology
WOS研究方向	Microbiology
WOS记录号	WOS:001270914900001
收录类别	PUBMED ; SCIE ; SCOPUS
URL	查看原文
PubMed ID	38980018
SCOPUSEID	2-s2.0-85201029918
通讯作者地址	[Zhou, Tieli;Ye, Jianzhong]First Affiliated Hosp Wenzhou Med Univ, Dept Clin Lab, Key Lab Clin Lab Diag & Translat Res Zhejiang Prov, Wenzhou, Zhejiang, Peoples R China. ; [Zhou, Tieli;Ye, Jianzhong]Key Lab Clin Lab Diag & Translat Res Zhejiang Prov, Hangzhou, Peoples R China.
Scopus学科分类	Physiology;Ecology;Immunology and Microbiology (all);Genetics;Microbiology (medical);Cell Biology;Infectious Diseases
引用统计
文献类型	期刊论文
条目标识符	https://kms.wmu.edu.cn/handle/3ETUA0LF/215740
专题	附属第一医院检验医学院（生命科学学院、生物学实验教学中心）第一临床医学院（信息与工程学院）、附属第一医院检验医学院（生命科学学院、生物学实验教学中心）_基础检验学系第一临床医学院（信息与工程学院）、附属第一医院_临床检验诊断学
作者单位	1.Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University; Key Laboratory of Clinical Laboratory Diagnosis and Translational Research of Zhejiang Province, Wenzhou, Zhejiang, China.; 2.Department of Medical Lab Science, School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, Zhejiang, China.
第一作者单位	附属第一医院; 临床检验诊断学; 第一临床医学院（信息与工程学院）、附属第一医院
通讯作者单位	临床检验诊断学
第一作者的第一单位	附属第一医院
推荐引用方式 GB/T 7714	Huijing Zhou,Xin Du,Yue Wang,et al. Antimicrobial peptide A20L: in vitro and in vivo antibacterial and antibiofilm activity against carbapenem-resistant Klebsiella pneumoniae[J]. Microbiology spectrum,2024,12(8).
APA	Huijing Zhou., Xin Du., Yue Wang., Jingchun Kong., Xiaodong Zhang., ... & Jianzhong Ye. (2024). Antimicrobial peptide A20L: in vitro and in vivo antibacterial and antibiofilm activity against carbapenem-resistant Klebsiella pneumoniae. Microbiology spectrum, 12(8).
MLA	Huijing Zhou,et al."Antimicrobial peptide A20L: in vitro and in vivo antibacterial and antibiofilm activity against carbapenem-resistant Klebsiella pneumoniae".Microbiology spectrum 12.8(2024).