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Antibacterial activity and mechanism of silver nanoparticles against multidrug-resistant Pseudomonas aeruginosa.

Identifieur interne : 000294 ( Main/Corpus ); précédent : 000293; suivant : 000295

Antibacterial activity and mechanism of silver nanoparticles against multidrug-resistant Pseudomonas aeruginosa.

Auteurs : Shijing Liao ; Yapeng Zhang ; Xuanhe Pan ; Feizhou Zhu ; Congyuan Jiang ; Qianqian Liu ; Zhongyi Cheng ; Gan Dai ; Guojun Wu ; Linqian Wang ; Liyu Chen

Source :

RBID : pubmed:30880959

English descriptors

Abstract

Background

The threat of drug-resistant

Objective

This study aimed to investigate the antibacterial activity and mechanism of silver nanoparticles (AgNPs) against multidrug-resistant

Methods

The antimicrobial effect of AgNPs on clinical isolates of resistant

Results

Antimicrobial tests revealed that AgNPs had highly bactericidal effect on the drug-resistant or multidrug-resistant

Conclusion

This study proved that AgNPs could play antimicrobial roles on the multidrug-resistant


DOI: 10.2147/IJN.S191340
PubMed: 30880959
PubMed Central: PMC6396885

Links to Exploration step

pubmed:30880959

Le document en format XML

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<name sortKey="Liao, Shijing" sort="Liao, Shijing" uniqKey="Liao S" first="Shijing" last="Liao">Shijing Liao</name>
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<name sortKey="Zhang, Yapeng" sort="Zhang, Yapeng" uniqKey="Zhang Y" first="Yapeng" last="Zhang">Yapeng Zhang</name>
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<name sortKey="Pan, Xuanhe" sort="Pan, Xuanhe" uniqKey="Pan X" first="Xuanhe" last="Pan">Xuanhe Pan</name>
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<name sortKey="Zhu, Feizhou" sort="Zhu, Feizhou" uniqKey="Zhu F" first="Feizhou" last="Zhu">Feizhou Zhu</name>
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<nlm:affiliation>Hunan Anson Biotechnology Co., Ltd., Changsha 410008, China.</nlm:affiliation>
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<name sortKey="Liu, Qianqian" sort="Liu, Qianqian" uniqKey="Liu Q" first="Qianqian" last="Liu">Qianqian Liu</name>
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<nlm:affiliation>Department of Biochemistry and Molecular Biology, School of Life Sciences, Central South University, Changsha 410013, China.</nlm:affiliation>
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<name sortKey="Cheng, Zhongyi" sort="Cheng, Zhongyi" uniqKey="Cheng Z" first="Zhongyi" last="Cheng">Zhongyi Cheng</name>
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<name sortKey="Dai, Gan" sort="Dai, Gan" uniqKey="Dai G" first="Gan" last="Dai">Gan Dai</name>
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<name sortKey="Wu, Guojun" sort="Wu, Guojun" uniqKey="Wu G" first="Guojun" last="Wu">Guojun Wu</name>
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<name sortKey="Wang, Linqian" sort="Wang, Linqian" uniqKey="Wang L" first="Linqian" last="Wang">Linqian Wang</name>
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<nlm:affiliation>Department of Clinical Laboratory, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, China, castlelins@163.com.</nlm:affiliation>
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<name sortKey="Chen, Liyu" sort="Chen, Liyu" uniqKey="Chen L" first="Liyu" last="Chen">Liyu Chen</name>
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<title level="j">International journal of nanomedicine</title>
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<term>Drug Resistance, Multiple, Bacterial (drug effects)</term>
<term>Metal Nanoparticles (administration & dosage)</term>
<term>Metal Nanoparticles (chemistry)</term>
<term>Microbial Sensitivity Tests (MeSH)</term>
<term>Pseudomonas Infections (drug therapy)</term>
<term>Pseudomonas Infections (microbiology)</term>
<term>Pseudomonas aeruginosa (drug effects)</term>
<term>Pseudomonas aeruginosa (growth & development)</term>
<term>Silver (chemistry)</term>
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<term>Anti-Bacterial Agents</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en">
<term>Anti-Bacterial Agents</term>
<term>Silver</term>
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<keywords scheme="MESH" qualifier="administration & dosage" xml:lang="en">
<term>Metal Nanoparticles</term>
</keywords>
<keywords scheme="MESH" qualifier="chemistry" xml:lang="en">
<term>Metal Nanoparticles</term>
</keywords>
<keywords scheme="MESH" qualifier="drug effects" xml:lang="en">
<term>Drug Resistance, Multiple, Bacterial</term>
<term>Pseudomonas aeruginosa</term>
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<keywords scheme="MESH" qualifier="drug therapy" xml:lang="en">
<term>Pseudomonas Infections</term>
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<keywords scheme="MESH" qualifier="growth & development" xml:lang="en">
<term>Pseudomonas aeruginosa</term>
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<keywords scheme="MESH" qualifier="microbiology" xml:lang="en">
<term>Pseudomonas Infections</term>
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<div type="abstract" xml:lang="en">
<p>
<b>Background</b>
</p>
<p>The threat of drug-resistant </p>
</div>
<div type="abstract" xml:lang="en">
<p>
<b>Objective</b>
</p>
<p>This study aimed to investigate the antibacterial activity and mechanism of silver nanoparticles (AgNPs) against multidrug-resistant </p>
</div>
<div type="abstract" xml:lang="en">
<p>
<b>Methods</b>
</p>
<p>The antimicrobial effect of AgNPs on clinical isolates of resistant </p>
</div>
<div type="abstract" xml:lang="en">
<p>
<b>Results</b>
</p>
<p>Antimicrobial tests revealed that AgNPs had highly bactericidal effect on the drug-resistant or multidrug-resistant </p>
</div>
<div type="abstract" xml:lang="en">
<p>
<b>Conclusion</b>
</p>
<p>This study proved that AgNPs could play antimicrobial roles on the multidrug-resistant </p>
</div>
</front>
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<PMID Version="1">30880959</PMID>
<DateCompleted>
<Year>2019</Year>
<Month>04</Month>
<Day>29</Day>
</DateCompleted>
<DateRevised>
<Year>2020</Year>
<Month>02</Month>
<Day>25</Day>
</DateRevised>
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<Journal>
<ISSN IssnType="Electronic">1178-2013</ISSN>
<JournalIssue CitedMedium="Internet">
<Volume>14</Volume>
<PubDate>
<Year>2019</Year>
</PubDate>
</JournalIssue>
<Title>International journal of nanomedicine</Title>
<ISOAbbreviation>Int J Nanomedicine</ISOAbbreviation>
</Journal>
<ArticleTitle>Antibacterial activity and mechanism of silver nanoparticles against multidrug-resistant
<i>Pseudomonas aeruginosa</i>
.</ArticleTitle>
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<MedlinePgn>1469-1487</MedlinePgn>
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<Abstract>
<AbstractText Label="Background" NlmCategory="UNASSIGNED">The threat of drug-resistant
<i>Pseudomonas aeruginosa</i>
requires great efforts to develop highly effective and safe bactericide.</AbstractText>
<AbstractText Label="Objective" NlmCategory="UNASSIGNED">This study aimed to investigate the antibacterial activity and mechanism of silver nanoparticles (AgNPs) against multidrug-resistant
<i>P. aeruginosa</i>
.</AbstractText>
<AbstractText Label="Methods" NlmCategory="UNASSIGNED">The antimicrobial effect of AgNPs on clinical isolates of resistant
<i>P. aeruginosa</i>
was assessed by minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC). In multidrug-resistant
<i>P. aeruginosa</i>
, the alterations of morphology and structure were observed by the transmission electron microscopy (TEM); the differentially expressed proteins were analyzed by quantitative proteomics; the production of reactive oxygen species (ROS) was assayed by H
<sub>2</sub>
DCF-DA staining; the activity of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) was chemically measured and the apoptosis-like effect was determined by flow cytometry.</AbstractText>
<AbstractText Label="Results" NlmCategory="UNASSIGNED">Antimicrobial tests revealed that AgNPs had highly bactericidal effect on the drug-resistant or multidrug-resistant
<i>P. aeruginosa</i>
with the MIC range of 1.406-5.625 µg/mL and the MBC range of 2.813-5.625 µg/mL. TEM showed that AgNPs could enter the multidrug-resistant bacteria and impair their morphology and structure. The proteomics quantified that, in the AgNP-treated bacteria, the levels of SOD, CAT, and POD, such as alkyl hydroperoxide reductase and organic hydroperoxide resistance protein, were obviously high, as well as the significant upregulation of low oxygen regulatory oxidases, including cbb3-type cytochrome c oxidase subunit P2, N2, and O2. Further results confirmed the excessive production of ROS. The antioxidants, reduced glutathione and ascorbic acid, partially antagonized the antibacterial action of AgNPs. The apoptosis-like rate of AgNP-treated bacteria was remarkably higher than that of the untreated bacteria (
<i>P</i>
<0.01).</AbstractText>
<AbstractText Label="Conclusion" NlmCategory="UNASSIGNED">This study proved that AgNPs could play antimicrobial roles on the multidrug-resistant
<i>P. aeruginosa</i>
in a concentration- and time-dependent manner. The main mechanism involves the disequilibrium of oxidation and antioxidation processes and the failure to eliminate the excessive ROS.</AbstractText>
</Abstract>
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<LastName>Liao</LastName>
<ForeName>Shijing</ForeName>
<Initials>S</Initials>
<AffiliationInfo>
<Affiliation>Department of Medical Microbiology, School of Basic Medical Sciences, Central South University, Changsha 410013, China, chenliyu@csu.edu.cn.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Zhang</LastName>
<ForeName>Yapeng</ForeName>
<Initials>Y</Initials>
<AffiliationInfo>
<Affiliation>Department of Medical Microbiology, School of Basic Medical Sciences, Central South University, Changsha 410013, China, chenliyu@csu.edu.cn.</Affiliation>
</AffiliationInfo>
</Author>
<Author ValidYN="Y">
<LastName>Pan</LastName>
<ForeName>Xuanhe</ForeName>
<Initials>X</Initials>
<AffiliationInfo>
<Affiliation>Department of Medical Microbiology, School of Basic Medical Sciences, Central South University, Changsha 410013, China, chenliyu@csu.edu.cn.</Affiliation>
</AffiliationInfo>
</Author>
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<LastName>Zhu</LastName>
<ForeName>Feizhou</ForeName>
<Initials>F</Initials>
<AffiliationInfo>
<Affiliation>Department of Biochemistry and Molecular Biology, School of Life Sciences, Central South University, Changsha 410013, China.</Affiliation>
</AffiliationInfo>
</Author>
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<LastName>Jiang</LastName>
<ForeName>Congyuan</ForeName>
<Initials>C</Initials>
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<Affiliation>Hunan Anson Biotechnology Co., Ltd., Changsha 410008, China.</Affiliation>
</AffiliationInfo>
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<LastName>Liu</LastName>
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<LastName>Wu</LastName>
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</AffiliationInfo>
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<LastName>Wang</LastName>
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<Affiliation>Department of Clinical Laboratory, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, China, castlelins@163.com.</Affiliation>
</AffiliationInfo>
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<LastName>Chen</LastName>
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<Affiliation>Department of Medical Microbiology, School of Basic Medical Sciences, Central South University, Changsha 410013, China, chenliyu@csu.edu.cn.</Affiliation>
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<MeshHeading>
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<MeshHeading>
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<Keyword MajorTopicYN="N">AgNPs</Keyword>
<Keyword MajorTopicYN="N">Pseudomonas aeruginosa</Keyword>
<Keyword MajorTopicYN="N">antibacterial activity</Keyword>
<Keyword MajorTopicYN="N">mechanism</Keyword>
<Keyword MajorTopicYN="N">multidrug-resistant bacterium</Keyword>
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<CoiStatement>Disclosure The authors report no conflicts of interest in this work.</CoiStatement>
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