Virus-inspired surface-nanoengineered antimicrobial liposome:A potential system to simultaneously achieve high activity and selectivity
作者机构:College of PharmacyJinan UniversityGuangzhouGuangdong511443China Department of PharmaceuticsSchool of Pharmaceutical SciencesSun Yat-Sen UniversityGuangzhouGuangdong510006China Medical CollegeShantou UniversityShantouGuangdong15041China Department of ChemistryUniversity of South FloridaTampaFL33620United States
出 版 物:《Bioactive Materials》 (生物活性材料(英文))
年 卷 期:2021年第6卷第10期
页 面:3207-3217页
核心收录:
学科分类:0831[工学-生物医学工程(可授工学、理学、医学学位)] 0710[理学-生物学] 08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0836[工学-生物工程]
基 金:This work was financially supported by the National Natural Science Foundation of China(No.81803467,81773660) the Research and Development Plan for Key Areas in Guangdong Province(No.2019B020204002).
主 题:Virus-inspired mimics Antimicrobial lipopeptides Liposomes Virus-like infections Activity and selectivity
摘 要:Enveloped viruses such as SARS-CoV-2 frequently have a highly infectious nature and are considered effective natural delivery systems exhibiting high efficiency and specificity.Since simultaneously enhancing the activity and selectivity of lipopeptides is a seemingly unsolvable problem for conventional chemistry and pharmaceutical approaches,we present a biomimetic strategy to construct lipopeptide-based mimics of viral architectures and infections to enhance their antimicrobial efficacy while avoiding side effects.Herein,a surface-nanoengineered antimicrobial liposome(SNAL)is developed with the morphological features of enveloped viruses,including a moderate size range,lipid-based membrane structure,and highly lipopeptide-enriched bilayer surface.The SNAL possesses virus-like infection to bacterial cells,which can mediate high-efficiency and high-selectivity bacteria binding,rapidly attack and invade bacteria via plasma membrane fusion pathway,and induce a local“burstrelease of lipopeptide to produce irreversible damage of cell membrane.Remarkably,viral mimics are effective against multiple pathogens with low minimum inhibitory concentrations(1.6-6.3μg mL1),high bactericidal efficiency of99%within 2 h,10-fold enhanced selectivity over free lipopeptide,99.8%reduction in skin MRSA load after a single treatment,and negligible toxicity.This bioinspired design has significant potential to enhance the therapeutic efficacy of lipopeptides and may create new opportunities for designing next-generation antimicrobials.