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RND efflux pump and its interrelationship with quorum sensing system.

Zhi-bin Liang1, Yu-mei Chen1, Yu-fan Chen1

  • 1Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Guangzhou 510642, China.

Yi Chuan = Hereditas
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Antibiotic resistance is a growing problem, with efflux pumps contributing significantly. This review explores the link between Resistance-nodulation-cell division efflux pumps and bacterial quorum sensing systems.

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Area of Science:

  • Microbiology
  • Molecular Biology
  • Biochemistry

Background:

  • Antibiotic resistance poses a significant threat to public health.
  • Efflux pumps, particularly the Resistance-nodulation-cell division (RND) superfamily in Gram-negative bacteria, are key mechanisms conferring antibiotic resistance.
  • The interplay between RND efflux pumps and bacterial quorum sensing (QS) systems is an emerging area of research.

Purpose of the Study:

  • To review the current understanding of RND efflux pump structure and function.
  • To summarize the general features and regulatory mechanisms of bacterial QS.
  • To focus on the intricate relationship between QS systems and RND efflux pumps in antibiotic resistance.

Main Methods:

  • Literature review of recent research findings.
  • Analysis of structural and mechanistic studies on RND efflux pumps.
  • Examination of regulatory pathways in bacterial QS.

Main Results:

  • RND efflux pumps are crucial for antibiotic resistance in Gram-negative bacteria.
  • Bacterial QS systems, regulated by small signal molecules, are interconnected with RND efflux pump activity.
  • Efflux pumps can influence QS signal transport, and QS can regulate efflux pump gene expression.

Conclusions:

  • The interrelationship between RND efflux pumps and QS systems is critical for understanding antibiotic resistance.
  • Further investigation into this interplay may reveal novel strategies to combat efflux pump-mediated resistance.
  • Elucidating these regulatory mechanisms is essential for developing new therapeutic approaches.