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Anti-virulent Disruption of Pathogenic Biofilms using Engineered Quorum-quenching Lactonases
Published on: January 1, 2016
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Quorum Quenching: A Potential Target for Antipseudomonal Therapy
Fatemeh Hemmati1,2, Roya Salehi3, Reza Ghotaslou4
1Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
Infection and Drug Resistance
|September 14, 2020
Summary
Antibiotic resistance in Pseudomonas aeruginosa necessitates new treatments. Quorum sensing inhibitors offer a promising alternative to combat these persistent infections and reduce mortality.
Area of Science:
- Microbiology and Infectious Diseases
- Pharmacology and Drug Discovery
- Bacterial Pathogenesis
Background:
- Increasing antibiotic resistance in Pseudomonas aeruginosa (P. aeruginosa) poses a global health threat.
- P. aeruginosa biofilms contribute to severe infections, elevated antibiotic resistance, and higher mortality rates.
- Current antibiotic treatments are often ineffective against P. aeruginosa infections, especially those involving biofilms.
Purpose of the Study:
- To review natural and synthetic quorum sensing inhibitors (QSIs) targeting P. aeruginosa.
- To assess current understanding of quorum sensing (QS) mechanisms in P. aeruginosa.
- To evaluate various quorum quenching (QQ) strategies for controlling P. aeruginosa virulence.
Main Methods:
- Comprehensive literature review of research on QSIs and QQ strategies for P. aeruginosa.
- Analysis of studies detailing QS mechanisms and their inhibition.
- Assessment of the efficacy of different natural and synthetic QSIs and QQ approaches.
Main Results:
- Quorum sensing inhibitors (QSIs) and quorum quenching (QQ) are identified as potential therapeutic alternatives or adjuncts.
- QSIs can modulate P. aeruginosa virulence factors, aiding host immune clearance.
- A range of natural and synthetic QSIs have been reported, showing promise in preclinical studies.
Conclusions:
- QSIs and QQ strategies represent a novel approach to combatting P. aeruginosa infections.
- These agents can overcome antibiotic resistance by targeting virulence rather than bacterial viability.
- Further research into QSIs and QQ is crucial for developing effective treatments against difficult-to-treat P. aeruginosa infections.
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