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Oligopeptides as full-length New Delhi metallo-β-lactamase-1 (NDM-1) inhibitors

‘Superbug’ bacteria producing NDM-1 enzyme causing wide public concern were first detected in a patient who visited India in 2008. It's an effective approach to combining β-lactam antibiotics with NDM-1 inhibitor for treating NDM-1 producing strain infection. In our research, we designed ten ol...

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Autores principales: Shen, Bingzheng, Zhu, Chengliang, Gao, Xiang, Liu, Gang, Song, Jinchun, Yu, Yan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5441612/
https://www.ncbi.nlm.nih.gov/pubmed/28542279
http://dx.doi.org/10.1371/journal.pone.0177293
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author Shen, Bingzheng
Zhu, Chengliang
Gao, Xiang
Liu, Gang
Song, Jinchun
Yu, Yan
author_facet Shen, Bingzheng
Zhu, Chengliang
Gao, Xiang
Liu, Gang
Song, Jinchun
Yu, Yan
author_sort Shen, Bingzheng
collection PubMed
description ‘Superbug’ bacteria producing NDM-1 enzyme causing wide public concern were first detected in a patient who visited India in 2008. It's an effective approach to combining β-lactam antibiotics with NDM-1 inhibitor for treating NDM-1 producing strain infection. In our research, we designed ten oligopeptides, tested IC(50) values against NDM-1 enzyme, determined the MIC values of synergistic antibacterial effect and explored the binding model. We found that the oligopeptides 2 (Cys-Phe) and 5 (Cys-Asp) respectively presented IC(50) values of 113 μM and 68 μM and also displayed favorable synergistic effects of the inhibitors in combination with ertapenem against genetic engineering-host E. coli BL21 (DE3)/pET30a-NDM-1 and a clinical isolate of P. aeruginosa with bla(NDM-1). Flexible docking and partial charge study suggested the interaction between oligopeptide and NDM-1. Three types of action effects, hydrogen bond, electrostatic effect and π-π interaction, contributed to the inhibitory activities.
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spelling pubmed-54416122017-06-06 Oligopeptides as full-length New Delhi metallo-β-lactamase-1 (NDM-1) inhibitors Shen, Bingzheng Zhu, Chengliang Gao, Xiang Liu, Gang Song, Jinchun Yu, Yan PLoS One Research Article ‘Superbug’ bacteria producing NDM-1 enzyme causing wide public concern were first detected in a patient who visited India in 2008. It's an effective approach to combining β-lactam antibiotics with NDM-1 inhibitor for treating NDM-1 producing strain infection. In our research, we designed ten oligopeptides, tested IC(50) values against NDM-1 enzyme, determined the MIC values of synergistic antibacterial effect and explored the binding model. We found that the oligopeptides 2 (Cys-Phe) and 5 (Cys-Asp) respectively presented IC(50) values of 113 μM and 68 μM and also displayed favorable synergistic effects of the inhibitors in combination with ertapenem against genetic engineering-host E. coli BL21 (DE3)/pET30a-NDM-1 and a clinical isolate of P. aeruginosa with bla(NDM-1). Flexible docking and partial charge study suggested the interaction between oligopeptide and NDM-1. Three types of action effects, hydrogen bond, electrostatic effect and π-π interaction, contributed to the inhibitory activities. Public Library of Science 2017-05-23 /pmc/articles/PMC5441612/ /pubmed/28542279 http://dx.doi.org/10.1371/journal.pone.0177293 Text en © 2017 Shen et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Shen, Bingzheng
Zhu, Chengliang
Gao, Xiang
Liu, Gang
Song, Jinchun
Yu, Yan
Oligopeptides as full-length New Delhi metallo-β-lactamase-1 (NDM-1) inhibitors
title Oligopeptides as full-length New Delhi metallo-β-lactamase-1 (NDM-1) inhibitors
title_full Oligopeptides as full-length New Delhi metallo-β-lactamase-1 (NDM-1) inhibitors
title_fullStr Oligopeptides as full-length New Delhi metallo-β-lactamase-1 (NDM-1) inhibitors
title_full_unstemmed Oligopeptides as full-length New Delhi metallo-β-lactamase-1 (NDM-1) inhibitors
title_short Oligopeptides as full-length New Delhi metallo-β-lactamase-1 (NDM-1) inhibitors
title_sort oligopeptides as full-length new delhi metallo-β-lactamase-1 (ndm-1) inhibitors
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5441612/
https://www.ncbi.nlm.nih.gov/pubmed/28542279
http://dx.doi.org/10.1371/journal.pone.0177293
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