Novel antimicrobial peptides with promising activity against multidrug resistant Salmonella enterica serovar Choleraesuis and its stress response mechanism

W-C Tsai, Z-J Zhuang, C-Y Lin, W-J Chen

研究成果: 雜誌貢獻文章

5 引文 (Scopus)

摘要

AIMS: To evaluate the antibacterial efficacy of novel antimicrobial peptides (AMPs) against multidrug-resistant (MDR) Salmonella enterica serovar Choleraesuis (Salm. Choleraesuis) and to delineate the AMP-responsive mechanisms of wild-type (WT) and MDR strains.

METHODS AND RESULTS: Proteomic approaches were performed based on two-dimensional gel electrophoresis and liquid chromatography-electrospray ionization-quadrupole- time-of-flight tandem mass spectrometry to analyse the protein profiles of these two strains upon exposure to AMP GW-Q6. Quantitative real-time PCR was conducted to determine the mRNA expression level of the target genes. Furthermore, lipopolysaccharide (LPS) competition analysis was used to verify whether LPS may serve as the potential binding target when AMP approach and adhere to the bacterial surface.

CONCLUSIONS: The minimal inhibitory concentration assay revealed that our AMPs were even more effective against the MDR strains (4-32 μg ml(-1) ), compared with those for the WT (8-64 μg ml(-1) ). LPS dose-dependently suppressed the GW-Q6 antimicrobial activity. Clusters of orthologous groups analysis showed that the majority of the AMP-responsive proteins were involved in cell envelope biogenesis and outer membrane, translation and chaperones.

SIGNIFICANCE AND IMPACT OF THE STUDY: These results indicated that the novel AMP GW-Q6 serves as a potential candidate for antimicrobial drug development against MDR strains. These findings will also be helpful for expanding our knowledge on the molecular mechanisms of AMP-microbe interaction and the pathogenicity of salmonellosis caused by MDR strains of Salm. Choleraesuis.
原文英語
頁(從 - 到)952-65
頁數14
期刊Journal of Applied Microbiology
121
發行號4
DOIs
出版狀態已發佈 - 十月 2016

指紋

Salmonella enterica
Peptides
Lipopolysaccharides
Serogroup
Salmonella Infections
Electrophoresis, Gel, Two-Dimensional
Tandem Mass Spectrometry
Liquid Chromatography
Proteomics
Gel Chromatography
Virulence
Real-Time Polymerase Chain Reaction
Proteins
Messenger RNA
Membranes

引用此文

@article{f525b855549641efa1d4e94f14be4d13,
title = "Novel antimicrobial peptides with promising activity against multidrug resistant Salmonella enterica serovar Choleraesuis and its stress response mechanism",
abstract = "AIMS: To evaluate the antibacterial efficacy of novel antimicrobial peptides (AMPs) against multidrug-resistant (MDR) Salmonella enterica serovar Choleraesuis (Salm. Choleraesuis) and to delineate the AMP-responsive mechanisms of wild-type (WT) and MDR strains.METHODS AND RESULTS: Proteomic approaches were performed based on two-dimensional gel electrophoresis and liquid chromatography-electrospray ionization-quadrupole- time-of-flight tandem mass spectrometry to analyse the protein profiles of these two strains upon exposure to AMP GW-Q6. Quantitative real-time PCR was conducted to determine the mRNA expression level of the target genes. Furthermore, lipopolysaccharide (LPS) competition analysis was used to verify whether LPS may serve as the potential binding target when AMP approach and adhere to the bacterial surface.CONCLUSIONS: The minimal inhibitory concentration assay revealed that our AMPs were even more effective against the MDR strains (4-32 μg ml(-1) ), compared with those for the WT (8-64 μg ml(-1) ). LPS dose-dependently suppressed the GW-Q6 antimicrobial activity. Clusters of orthologous groups analysis showed that the majority of the AMP-responsive proteins were involved in cell envelope biogenesis and outer membrane, translation and chaperones.SIGNIFICANCE AND IMPACT OF THE STUDY: These results indicated that the novel AMP GW-Q6 serves as a potential candidate for antimicrobial drug development against MDR strains. These findings will also be helpful for expanding our knowledge on the molecular mechanisms of AMP-microbe interaction and the pathogenicity of salmonellosis caused by MDR strains of Salm. Choleraesuis.",
keywords = "Animals, Anti-Bacterial Agents, Antimicrobial Cationic Peptides, Bacterial Proteins, Drug Resistance, Multiple, Bacterial, Electrophoresis, Gel, Two-Dimensional, Microbial Sensitivity Tests, Proteomics, Real-Time Polymerase Chain Reaction, Salmonella Infections, Salmonella enterica, Serogroup, Journal Article",
author = "W-C Tsai and Z-J Zhuang and C-Y Lin and W-J Chen",
note = "{\circledC} 2016 The Society for Applied Microbiology.",
year = "2016",
month = "10",
doi = "10.1111/jam.13203",
language = "English",
volume = "121",
pages = "952--65",
journal = "Journal of Applied Microbiology",
issn = "1364-5072",
publisher = "Wiley-Blackwell",
number = "4",

}

TY - JOUR

T1 - Novel antimicrobial peptides with promising activity against multidrug resistant Salmonella enterica serovar Choleraesuis and its stress response mechanism

AU - Tsai, W-C

AU - Zhuang, Z-J

AU - Lin, C-Y

AU - Chen, W-J

N1 - © 2016 The Society for Applied Microbiology.

PY - 2016/10

Y1 - 2016/10

N2 - AIMS: To evaluate the antibacterial efficacy of novel antimicrobial peptides (AMPs) against multidrug-resistant (MDR) Salmonella enterica serovar Choleraesuis (Salm. Choleraesuis) and to delineate the AMP-responsive mechanisms of wild-type (WT) and MDR strains.METHODS AND RESULTS: Proteomic approaches were performed based on two-dimensional gel electrophoresis and liquid chromatography-electrospray ionization-quadrupole- time-of-flight tandem mass spectrometry to analyse the protein profiles of these two strains upon exposure to AMP GW-Q6. Quantitative real-time PCR was conducted to determine the mRNA expression level of the target genes. Furthermore, lipopolysaccharide (LPS) competition analysis was used to verify whether LPS may serve as the potential binding target when AMP approach and adhere to the bacterial surface.CONCLUSIONS: The minimal inhibitory concentration assay revealed that our AMPs were even more effective against the MDR strains (4-32 μg ml(-1) ), compared with those for the WT (8-64 μg ml(-1) ). LPS dose-dependently suppressed the GW-Q6 antimicrobial activity. Clusters of orthologous groups analysis showed that the majority of the AMP-responsive proteins were involved in cell envelope biogenesis and outer membrane, translation and chaperones.SIGNIFICANCE AND IMPACT OF THE STUDY: These results indicated that the novel AMP GW-Q6 serves as a potential candidate for antimicrobial drug development against MDR strains. These findings will also be helpful for expanding our knowledge on the molecular mechanisms of AMP-microbe interaction and the pathogenicity of salmonellosis caused by MDR strains of Salm. Choleraesuis.

AB - AIMS: To evaluate the antibacterial efficacy of novel antimicrobial peptides (AMPs) against multidrug-resistant (MDR) Salmonella enterica serovar Choleraesuis (Salm. Choleraesuis) and to delineate the AMP-responsive mechanisms of wild-type (WT) and MDR strains.METHODS AND RESULTS: Proteomic approaches were performed based on two-dimensional gel electrophoresis and liquid chromatography-electrospray ionization-quadrupole- time-of-flight tandem mass spectrometry to analyse the protein profiles of these two strains upon exposure to AMP GW-Q6. Quantitative real-time PCR was conducted to determine the mRNA expression level of the target genes. Furthermore, lipopolysaccharide (LPS) competition analysis was used to verify whether LPS may serve as the potential binding target when AMP approach and adhere to the bacterial surface.CONCLUSIONS: The minimal inhibitory concentration assay revealed that our AMPs were even more effective against the MDR strains (4-32 μg ml(-1) ), compared with those for the WT (8-64 μg ml(-1) ). LPS dose-dependently suppressed the GW-Q6 antimicrobial activity. Clusters of orthologous groups analysis showed that the majority of the AMP-responsive proteins were involved in cell envelope biogenesis and outer membrane, translation and chaperones.SIGNIFICANCE AND IMPACT OF THE STUDY: These results indicated that the novel AMP GW-Q6 serves as a potential candidate for antimicrobial drug development against MDR strains. These findings will also be helpful for expanding our knowledge on the molecular mechanisms of AMP-microbe interaction and the pathogenicity of salmonellosis caused by MDR strains of Salm. Choleraesuis.

KW - Animals

KW - Anti-Bacterial Agents

KW - Antimicrobial Cationic Peptides

KW - Bacterial Proteins

KW - Drug Resistance, Multiple, Bacterial

KW - Electrophoresis, Gel, Two-Dimensional

KW - Microbial Sensitivity Tests

KW - Proteomics

KW - Real-Time Polymerase Chain Reaction

KW - Salmonella Infections

KW - Salmonella enterica

KW - Serogroup

KW - Journal Article

U2 - 10.1111/jam.13203

DO - 10.1111/jam.13203

M3 - Article

C2 - 27280957

VL - 121

SP - 952

EP - 965

JO - Journal of Applied Microbiology

JF - Journal of Applied Microbiology

SN - 1364-5072

IS - 4

ER -