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Updated: Dec 21, 2025

Testing the Role of Multicopy Plasmids in the Evolution of Antibiotic Resistance
Published on: May 2, 2018
Targeting Plasmids to Limit Acquisition and Transmission of Antimicrobial Resistance
Corneliu Ovidiu Vrancianu1,2, Laura Ioana Popa1,2,3, Coralia Bleotu1,2,4
1Microbiology Immunology Department, Faculty of Biology, University of Bucharest, Bucharest, Romania.
Abstract:
Antimicrobial resistance (AMR) is a significant global threat to both public health and the environment. The emergence and expansion of AMR is sustained by the enormous diversity and mobility of antimicrobial resistance genes (ARGs). Different mechanisms of horizontal gene transfer (HGT), including conjugation, transduction, and transformation, have facilitated the accumulation and dissemination of ARGs in Gram-negative and Gram-positive bacteria. This has resulted in the development of multidrug resistance in some bacteria. The most clinically significant ARGs are usually located on different mobile genetic elements (MGEs) that can move intracellularly (between the bacterial chromosome and plasmids) or intercellularly (within the same species or between different species or genera). Resistance plasmids play a central role both in HGT and as support elements for other MGEs, in which ARGs are assembled by transposition and recombination mechanisms. Considering the crucial role of MGEs in the acquisition and transmission of ARGs, a potential strategy to control AMR is to eliminate MGEs. This review discusses current progress on the development of chemical and biological approaches for the elimination of ARG carriers.
Insights
Antimicrobial resistance (AMR) spreads via mobile genetic elements (MGEs) carrying antimicrobial resistance genes (ARGs). Targeting these MGEs offers a promising strategy to combat AMR by eliminating ARG carriers.
Area of Science:
- Microbiology
- Environmental Science
- Public Health
Background:
- Antimicrobial resistance (AMR) poses a significant global threat, driven by the diversity and mobility of antimicrobial resistance genes (ARGs).
- Horizontal gene transfer (HGT) mechanisms like conjugation, transduction, and transformation accelerate ARG accumulation and dissemination in bacteria, leading to multidrug resistance.
- Clinically significant ARGs are often located on mobile genetic elements (MGEs), facilitating their intracellular and intercellular spread.
Purpose of the Study:
- To review current progress in developing strategies to eliminate mobile genetic elements (MGEs) as a means to control antimicrobial resistance (AMR).
Main Methods:
- This review synthesizes current research on chemical and biological approaches aimed at eliminating ARG carriers.
- Focuses on the role of MGEs, particularly resistance plasmids, in the assembly and transmission of ARGs.
Main Results:
- Mobile genetic elements (MGEs) are central to the acquisition and transmission of antimicrobial resistance genes (ARGs).
- Eliminating MGEs is identified as a potential key strategy for controlling AMR.
- Current research explores chemical and biological methods for targeting ARG carriers.
Conclusions:
- Mobile genetic elements are critical drivers of antimicrobial resistance.
- Targeting MGEs presents a viable strategy for combating the spread of AMR.
- Further development of chemical and biological approaches is needed to eliminate ARG carriers effectively.
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