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Anti-virulent Disruption of Pathogenic Biofilms using Engineered Quorum-quenching Lactonases
Published on: January 1, 2016
Acyl-homoserine lactone quorum sensing: from evolution to application
Martin Schuster1, D Joseph Sexton, Stephen P Diggle
1Department of Microbiology, Oregon State University, Corvallis, Oregon 97331; email: martin.schuster@oregonstate.edu , sextond@science.oregonstate.edu.
Annual Review of Microbiology
|May 21, 2013
Summary
Bacteria use quorum sensing (QS) to coordinate group behaviors via chemical signals. Recent studies support QS
Area of Science:
- Microbiology
- Bacterial Communication
- Social Behavior in Microorganisms
Background:
- Quorum sensing (QS) is a cell-to-cell communication mechanism used by bacteria.
- Bacterial QS regulates group behaviors like bioluminescence, biofilm formation, and exoenzyme secretion.
- Acyl-homoserine lactones are key signaling molecules in Proteobacteria, notably in Pseudomonas aeruginosa.
Purpose of the Study:
- To review empirical evidence supporting the social nature of QS.
- To investigate the benefits and evolutionary stability of QS-mediated cooperation.
- To explore the medical implications of QS inhibition and resistance evolution.
Main Methods:
- Review of mechanistic and empirical studies on bacterial quorum sensing.
- Analysis of theoretical principles governing cooperation, including kin selection.
- Examination of Pseudomonas aeruginosa as a model system for QS research.
Main Results:
- Empirical studies increasingly support the social dynamics and benefits of QS.
- QS-controlled public-goods production provides insights into cooperation evolution.
- Understanding QS social dynamics is crucial for developing anti-QS therapies.
Conclusions:
- Quorum sensing is a fundamental social process in bacteria with significant implications.
- Further research is needed to connect laboratory findings to natural ecosystems.
- QS inhibition strategies must consider bacterial social evolution and resistance.
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