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KMID : 0545120210310010001
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Journal of Microbiology and Biotechnology
2021 Volume.31 No. 1 p.1 ~ p.7
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Mechanisms and Control Strategies of Antibiotic Resistance in Pathological Biofilms
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Luo Ying
Yang Qianqian
Zhang Dan
Yan Wei
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Abstract
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Bacterial biofilm is a community of bacteria that are embedded and structured in a self-secreted extracellular matrix. An important clinical-related characteristic of bacterial biofilms is that they are much more resistant to antimicrobial agents than the planktonic cells (up to 1,000 times), which is one of the main causes of antibiotic resistance in clinics. Therefore, infections caused by biofilms are notoriously difficult to eradicate, such as lung infection caused by Pseudomonas aeruginosa in cystic fibrosis patients. Understanding the resistance mechanisms of biofilms will provide direct insights into how we overcome such resistance. In this review, we summarize the characteristics of biofilms and chronic infections associated with bacterial biofilms. We examine the current understanding and research progress on the major mechanisms of antibiotic resistance in biofilms, including quorum sensing. We also discuss the potential strategies that may overcome biofilm-related antibiotic resistance, focusing on targeting biofilm EPSs, blocking quorum sensing signaling, and using recombinant phages.
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KEYWORD
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Biofilm, antibiotic resistance mechanisms, quorum sensing, control strategies
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