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细菌生物膜:医疗系统中的形成、影响及可能的管理靶点

The Bacterial Biofilms: Formation, Impacts, and Possible Management Targets in the Healthcare System.

作者信息

Omwenga Eric Omori, Awuor Silas Onyango

机构信息

Department of Medical Microbiology & Parasitology, School of Health Sciences, Kisii University, Kisii, Kenya.

Department of Applied Health Sciences, School of Health Sciences, Kisii University, Kisii, Kenya.

出版信息

Can J Infect Dis Med Microbiol. 2024 Dec 16;2024:1542576. doi: 10.1155/cjid/1542576. eCollection 2024.

Abstract

The persistent increase in multidrug-resistant pathogens has catalyzed the creation of novel strategies to address antivirulence and anti-infective elements. Such methodologies aim to diminish the selective pressure exerted on bacterial populations, decreasing the likelihood of resistance emergence. This review explores the role of biofilm formation as a significant virulence factor and its impact on the development of antimicrobial resistance (AMR). The ability of bacteria to form a superstructure-biofilm-has made resistance cases in the microbial world a big concern to public health and other sectors as it is a crucial virulence factor that causes difficulties in the management of infections, hence enhancing chronic infection occurrence. Biofilm formation dates to about 3.4 billion years when prokaryotes were discovered to be forming them and since then due to evolution and growth in science, they are more understood. The unique microenvironments within bacterial biofilms diminish antibiotic effectiveness and help bacteria evade the host immune system. Biofilm production is a widespread capability among diverse bacterial species. Biofilm formation is enhanced by quorum sensing (QS), reduction of nutrients, or harsh environments for the bacteria. The rise of severe, treatment-resistant biofilm infections poses major challenges in medicine and agriculture, yet much about how these biofilms form remains unknown.

摘要

多重耐药病原体的持续增加促使人们创造新的策略来应对抗毒力和抗感染因素。这些方法旨在减少对细菌群体施加的选择压力,降低耐药性出现的可能性。本综述探讨了生物膜形成作为一种重要毒力因子的作用及其对抗菌药物耐药性(AMR)发展的影响。细菌形成超结构——生物膜的能力已使微生物世界中的耐药情况成为公共卫生和其他领域极为关注的问题,因为它是导致感染管理困难的关键毒力因子,从而增加了慢性感染的发生率。生物膜形成可追溯到约34亿年前,当时原核生物被发现能够形成生物膜,从那时起,随着科学的发展和进步,人们对它们有了更多的了解。细菌生物膜内独特的微环境会降低抗生素的有效性,并帮助细菌逃避免疫系统。生物膜的产生是多种细菌物种广泛具备的能力。群体感应(QS)、营养物质减少或对细菌而言恶劣的环境会增强生物膜的形成。严重的、难以治疗的生物膜感染的增加给医学和农业带来了重大挑战,但关于这些生物膜如何形成仍有许多未知之处。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/545d/11666319/10812484beb8/CJIDMM2024-1542576.001.jpg

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