Anti-Biofilm Perspectives of Propolis against Staphylococcus epidermidis Infections

被引:1
作者
Vadillo-Rodriguez, Virginia [1 ]
Fernandez-Babiano, Irene [2 ,3 ]
Perez-Giraldo, Ciro [2 ,3 ,4 ]
Fernandez-Calderon, Maria Coronada [2 ,3 ,4 ]
机构
[1] Univ Extremadura, Dept Appl Phys, Badajoz 06006, Spain
[2] Univ Extremadura, Dept Biomed Sci, Area Microbiol, Badajoz 06006, Spain
[3] Univ Inst Extremadura San Res INUBE, Badajoz 06006, Spain
[4] Networking Biomed Res Ctr Bioengn Biomat & Nanomed, Badajoz 06006, Spain
关键词
propolis; biofilms; Staphylococcus epidermidis; zeta potential; hydrophobicity; ANTIMICROBIAL ACTIVITY; BIOLOGICAL-ACTIVITIES;
D O I
10.3390/biom14070779
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Staphylococcus epidermis has emerged as the main causative agent of medical device-related infections. Their major pathogenicity factor lies in its ability to adhere to surfaces and proliferate into biofilms, which increase their resistance to antibiotics. The main objective of this study was to evaluate the use and the mechanism of action of an ethanolic extract of Spanish propolis (EESP) as a potential alternative for preventing biofilm-related infections caused by S. epidermidis. The chemical composition of propolis is reported and its antibacterial activity against several strains of S. epidermidis with different biofilm-forming capacities evaluated. The influence of sub-inhibitory concentrations (sub-MICs) of EESP on their growth, physicochemical surface properties, adherence, and biofilm formation were studied. EESP interferes with planktonic cells, homogenizing their physicochemical surface properties and introducing a significant delay in their growth. The adherence and biofilms at the EESP concentrations investigated were decreased up to 90.5% among the strains. Microscopic analysis indicated that the planktonic cells that survived the treatment were the ones that adhere and proliferate on the surfaces. The results obtained suggest that the EESP has a high potential to be used as an inhibitor of both the adhesion and biofilm formation of S. epidermidis.
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页数:20
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