吲哚在生物材料表面大肠杆菌生物膜中的研究进展

Research Progress of Indole in E.coli Biofilms on the Surface of Biomaterials

大肠杆菌是一种适应性很强的条件致病菌,可以在植入物表面形成生物膜并产生持久细胞,导致危及生命的感染,抗生素难以治疗。因此,急需1种有效的大肠杆菌生物膜抑制剂来应对公共健康威胁。吲哚是近年发现的大肠杆菌新型群体感应信号分子,在调控细菌生长及生物膜形成方面具有重要意义,是未来研究新型抗生物膜制剂的潜在靶标。综述大肠杆菌生物膜的形成、吲哚的微生物代谢及其调控大肠杆菌生物膜形成研究进展,以期为临床治疗及药物研发提供帮助。

Escherichia coli is a highly adaptable opportunistic pathogen bacterium that can form biofilms on the surface of implants and generates persistent cells,leading to life-threatening infections that are difficult to treat with antibiotics alone.Therefore,there is a need for an effective E.coli biofilm inhibitor to combat this public health threat.Indole is a novel quorum-sensing signaling molecule of E.coli discovered in recent years,which is of great significance in regulating bacterial growth and biofilm formation,and is a potential target for future research on new anti-biofilm preparations.This article reviews the research progress on the formation of Escherichia coli biofilms,the microbial metabolism of indole and its regulation of Escherichia coli biofilm formation,in order to provide information for clinical treatment and drug development.