遗传 ›› 2024, Vol. 46 ›› Issue (1): 34-45.doi: 10.16288/j.yczz.23-205

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分枝杆菌生物被膜发育调控与抗生素耐药菌防控新措施研发

阿卜力米提·阿卜杜喀迪尔1(), 张其奥1, 李佩波2, 谢建平1()   

  1. 1.西南大学生命科学学院现代生物医药研究所,重庆 400715
    2.重庆市公共卫生医疗中心,重庆 400036
  • 收稿日期:2023-09-16 修回日期:2023-11-18 出版日期:2024-01-20 发布日期:2023-11-20
  • 通讯作者: 谢建平 E-mail:1014420935@qq.com;georgex@swu.edu.cn
  • 作者简介:阿卜力米提·阿卜杜喀迪尔,博士研究生,研究方向:微生物与宿主及环境互作。E-mail: 1014420935@qq.com
  • 基金资助:
    西南大学研究生科研创新项目(SWUB23040)

Regulation of Mycobacterium biofilm development and novel measures against antibiotics resistance

Abulimiti Abudukadier1(), Qi-ao Zhang1, Peibo Li2, Jianping Xie1()   

  1. 1. School of Life Sciences, Institute of Modern Biopharmaceuticals, Southwest University, Chongqing 400715, China
    2. Chongqing Public Health Medical Center, Chongqing 400036, China
  • Received:2023-09-16 Revised:2023-11-18 Published:2024-01-20 Online:2023-11-20
  • Contact: Jianping Xie E-mail:1014420935@qq.com;georgex@swu.edu.cn
  • Supported by:
    Graduate Research Innovation Project of Southwest University(SWUB23040)

摘要:

目前,已知的分枝杆菌属有170多种,是分枝杆菌科中唯一的属。该属的微生物在引起人类疾病的能力方面呈现多样化。分枝杆菌属包括人类病原体(结核分枝杆菌复合菌群和麻风分枝杆菌)和被称为非结核分枝杆菌(non-tuberculosis mycobacteria,NTM)的环境微生物。分枝杆菌的一个常见致病因素是生物被膜的形成。细菌生物被膜通常被定义为表面附着的细菌群落,也被认为是被包裹的微生物细胞的共享空间,包括各种胞外聚合物基质(extracellular polymeric substances,EPS),如多糖、蛋白质、淀粉样蛋白、脂类和胞外DNA (extracellular DNA,EDNA),以及膜小泡和类腐殖质微生物衍生的难降解物质。基质的组装和动力学主要由第二信使、信号分子或小RNA协调。完全破译细菌如何为基质提供结构,从而促进细胞外反应并从中受益,仍然是未来生物被膜研究的挑战。本文介绍了生物被膜五步发育模型和生物被膜形成的新模型,分析了生物被膜的致病性,与噬菌体、宿主免疫细胞的互作,同时解析了分枝杆菌生物被膜关键基因及调控网络,分枝杆菌生物被膜与耐药性,以期为临床上治疗由生物被膜引起的疾病提供基础。

关键词: 分枝杆菌, 生物被膜, 抗菌素耐药性

Abstract:

Currently, there are over 170 recognized species of Mycobacterium, the only genus in the family Mycobacteriaceae. Organisms belonging to this genus are quite diverse with respect to their ability to cause disease in humans. The Mycobacterium genus includes human pathogens (Mycobacterium tuberculosis complex and Mycobacterium leprae) and environmental microorganisms known as non-tuberculosis mycobacteria (NTM). A common pathogenic factor of Mycobacterium is the formation of biofilms. Bacterial biofilms are usually defined as bacterial communities attached to the surface, and are also considered as shared spaces of encapsulated microbial cells, including various extracellular polymeric substrates (EPS), such as polysaccharides, proteins, amyloid proteins, lipids, and extracellular DNA (EDNA), as well as membrane vesicles and humic like microorganisms derived refractory substances. The assembly and dynamics of the matrix are mainly coordinated by second messengers, signaling molecules, or small RNAs. Fully deciphering how bacteria provide structure for the matrix, thereby promoting extracellular reactions and benefiting from them, remains a challenge for future biofilm research. This review introduces a five step development model for biofilms and a new model for biofilm formation, analyses the pathogenicity of biofilms, their interactions with bacteriophages and host immune cells, and the key genes and regulatory networks of mycobacterial biofilms, as well as mycobacterial biofilms and drug resistance, in order to provide a basis for clinical treatment of diseases caused by biofilms.

Key words: Mycobacteria, biofilm, antibiotic resistance