Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, Haringhata, West Bengal, India.
Department of Biotechnology, University of Engineering & Management, Kolkata, West Bengal, India.
J Basic Microbiol. 2022 Nov;62(11):1291-1306. doi: 10.1002/jobm.202200047. Epub 2022 Apr 3.
Biofilm-associated infections have increased excessively over the recent years due to the increased population having impaired immune systems or as a result of certain medical conditions like transplantation, cancer, and any other chronic ailments. The abrupt enhancement of antibiotic resistance and enhanced utilization of biomedical devices offer new opportunities for microbial colonization leading to the development of microbial biofilms. Total eradication of recalcitrant microbial biofilms demands the adoption of a holistic approach and since the fungal metabolites enriched with bioactive compounds show efficacy in inhibiting the multiple factors behind biofilm formation, the anti-biofilm activities of fungal metabolites need to be appraised. Being effective in preventing various steps of biofilm formation, including inhibition of surface adhesion and cell-to-cell communication through quorum quenching, blocking of quorum sensing receptors, and enzymes involved in microbial cell wall biosynthesis, targeting the virulence factors and finally killing of biofilm bound individual cells; myco-metabolites are found effective as a potent holistic anti-biofilm agent. The wide spectrum of bioactive substances of fungi and their anti-biofilm activities against different pathogens and their multitarget characteristics are very promising in the field of treating biofilm infections.
近年来,由于免疫系统受损的人群增加,或由于移植、癌症和任何其他慢性疾病等某些医疗条件,生物膜相关感染过度增加。抗生素耐药性的突然增强和生物医学设备的大量使用为微生物定殖提供了新的机会,从而导致微生物生物膜的形成。要彻底消除顽固性微生物生物膜,需要采取整体方法,由于富含生物活性化合物的真菌代谢物在抑制生物膜形成背后的多种因素方面显示出功效,因此需要评估真菌代谢物的抗生物膜活性。真菌代谢物通过群体感应淬灭来抑制表面粘附和细胞间通讯、阻断群体感应受体以及参与微生物细胞壁生物合成的酶,靶向毒力因子,最后杀死生物膜结合的单个细胞,从而有效预防生物膜形成的各个步骤;作为一种有效的整体抗生物膜剂。真菌的生物活性物质具有广泛的谱,它们对不同病原体的抗生物膜活性及其针对多种靶标的特性在治疗生物膜感染领域非常有前途。