Identification of small molecules that interfere with c-di-GMP signaling and induce dispersal of Pseudomonas aeruginosa biofilms
Abstract Microbial biofilms are involved in a number of infections that cannot be cured, as microbes in biofilms resist host immune defenses and antibiotic therapies. With no strict biofilm-antibiotic in the current pipelines, there is an unmet need for drug candidates that enable the current antibi...
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2021
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oai:doaj.org-article:eda8b498ebe14f64949aa92898bfab952021-12-02T16:24:51ZIdentification of small molecules that interfere with c-di-GMP signaling and induce dispersal of Pseudomonas aeruginosa biofilms10.1038/s41522-021-00225-42055-5008https://doaj.org/article/eda8b498ebe14f64949aa92898bfab952021-07-01T00:00:00Zhttps://doi.org/10.1038/s41522-021-00225-4https://doaj.org/toc/2055-5008Abstract Microbial biofilms are involved in a number of infections that cannot be cured, as microbes in biofilms resist host immune defenses and antibiotic therapies. With no strict biofilm-antibiotic in the current pipelines, there is an unmet need for drug candidates that enable the current antibiotics to eradicate bacteria in biofilms. We used high-throughput screening to identify chemical compounds that reduce the intracellular c-di-GMP content in Pseudomonas aeruginosa. This led to the identification of a small molecule that efficiently depletes P. aeruginosa for c-di-GMP, inhibits biofilm formation, and disperses established biofilm. A combination of our lead compound with standard of care antibiotics showed improved eradication of an implant-associated infection established in mice. Genetic analyses provided evidence that the anti-biofilm compound stimulates the activity of the c-di-GMP phosphodiesterase BifA in P. aeruginosa. Our work constitutes a proof of concept for c-di-GMP phosphodiesterase-activating drugs administered in combination with antibiotics as a viable treatment strategy for otherwise recalcitrant infections.Jens Bo AndersenLouise Dahl HultqvistCharlotte Uldahl JansenTim Holm JakobsenMartin NilssonMorten RybtkeJesper UhdBlaine Gabriel FritzRoland SeifertJens BerthelsenThomas Eiland NielsenKatrine QvortrupMichael GivskovTim Tolker-NielsenNature PortfolioarticleMicrobial ecologyQR100-130ENnpj Biofilms and Microbiomes, Vol 7, Iss 1, Pp 1-13 (2021) |
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Microbial ecology QR100-130 |
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Microbial ecology QR100-130 Jens Bo Andersen Louise Dahl Hultqvist Charlotte Uldahl Jansen Tim Holm Jakobsen Martin Nilsson Morten Rybtke Jesper Uhd Blaine Gabriel Fritz Roland Seifert Jens Berthelsen Thomas Eiland Nielsen Katrine Qvortrup Michael Givskov Tim Tolker-Nielsen Identification of small molecules that interfere with c-di-GMP signaling and induce dispersal of Pseudomonas aeruginosa biofilms |
description |
Abstract Microbial biofilms are involved in a number of infections that cannot be cured, as microbes in biofilms resist host immune defenses and antibiotic therapies. With no strict biofilm-antibiotic in the current pipelines, there is an unmet need for drug candidates that enable the current antibiotics to eradicate bacteria in biofilms. We used high-throughput screening to identify chemical compounds that reduce the intracellular c-di-GMP content in Pseudomonas aeruginosa. This led to the identification of a small molecule that efficiently depletes P. aeruginosa for c-di-GMP, inhibits biofilm formation, and disperses established biofilm. A combination of our lead compound with standard of care antibiotics showed improved eradication of an implant-associated infection established in mice. Genetic analyses provided evidence that the anti-biofilm compound stimulates the activity of the c-di-GMP phosphodiesterase BifA in P. aeruginosa. Our work constitutes a proof of concept for c-di-GMP phosphodiesterase-activating drugs administered in combination with antibiotics as a viable treatment strategy for otherwise recalcitrant infections. |
format |
article |
author |
Jens Bo Andersen Louise Dahl Hultqvist Charlotte Uldahl Jansen Tim Holm Jakobsen Martin Nilsson Morten Rybtke Jesper Uhd Blaine Gabriel Fritz Roland Seifert Jens Berthelsen Thomas Eiland Nielsen Katrine Qvortrup Michael Givskov Tim Tolker-Nielsen |
author_facet |
Jens Bo Andersen Louise Dahl Hultqvist Charlotte Uldahl Jansen Tim Holm Jakobsen Martin Nilsson Morten Rybtke Jesper Uhd Blaine Gabriel Fritz Roland Seifert Jens Berthelsen Thomas Eiland Nielsen Katrine Qvortrup Michael Givskov Tim Tolker-Nielsen |
author_sort |
Jens Bo Andersen |
title |
Identification of small molecules that interfere with c-di-GMP signaling and induce dispersal of Pseudomonas aeruginosa biofilms |
title_short |
Identification of small molecules that interfere with c-di-GMP signaling and induce dispersal of Pseudomonas aeruginosa biofilms |
title_full |
Identification of small molecules that interfere with c-di-GMP signaling and induce dispersal of Pseudomonas aeruginosa biofilms |
title_fullStr |
Identification of small molecules that interfere with c-di-GMP signaling and induce dispersal of Pseudomonas aeruginosa biofilms |
title_full_unstemmed |
Identification of small molecules that interfere with c-di-GMP signaling and induce dispersal of Pseudomonas aeruginosa biofilms |
title_sort |
identification of small molecules that interfere with c-di-gmp signaling and induce dispersal of pseudomonas aeruginosa biofilms |
publisher |
Nature Portfolio |
publishDate |
2021 |
url |
https://doaj.org/article/eda8b498ebe14f64949aa92898bfab95 |
work_keys_str_mv |
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