Article (Scientific journals)
Interaction of fengycin with stratum corneum mimicking model membranes: a calorimetry study
Eeman, Marc; Oloffson, Gerd; Sparr, Emma et al.
2014In Colloids and Surfaces B: Biointerfaces, 121, p. 27-35
Peer Reviewed verified by ORBi
 

Files


Full Text
COLSUB.pdf
Publisher postprint (450.29 kB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Fengycin; Isothermal titration calorimetry; Differential scanning calorimetry; Critical micelle concentration; Phase transition
Abstract :
[en] Based on its outstanding antifungal properties, it is reasonable to believe that fengycin might be efficient to topically treat localized dermatomycoses. Since most of the fungi species involved in the formation of those mycotic skin diseases colonize primarily the stratum corneum (SC), studying the interaction between fengycin and SC-mimicking lipid membranes is a primary step to determine the potential of fengycin to overcome the physical barrier of the skin. In this respect, multilamellar lipid vesicles (MLVs), with a lipid composition mimicking that of the SC, were prepared and characterized by differential scanning calorimetry (DSC). The critical micelle concentration (CMC) of fengycin was also assessed under skin conditions and found to be 1.2 ± 0.1 μM. The molecular interactions of fengycin with SC-mimicking MLVs were investigated by both DSC and isothermal titration calorimetry (ITC). Results showed that the interactions were considerably affected by changes in lipid phase behaviour. At 40 °C and below, fengycin induced exothermic changes in the lipid structures suggesting that less-ordered lipid domains became more-ordered in presence of fengycin. At 60 °C, clearly endothermic interaction enthalpies were observed, which could arise from the “melting” of remaining solid domains enriched in high melting lipids that without fengycin melt at higher temperatures.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Eeman, Marc
Oloffson, Gerd
Sparr, Emma
Nasir, Mehmet Nail ;  Université de Liège - ULiège > Chimie et bio-industries > Chimie générale et organique
Nylander, Tommy
Deleu, Magali  ;  Université de Liège - ULiège > Chimie et bio-industries > Chimie biologique industrielle
Language :
English
Title :
Interaction of fengycin with stratum corneum mimicking model membranes: a calorimetry study
Publication date :
2014
Journal title :
Colloids and Surfaces B: Biointerfaces
ISSN :
0927-7765
Publisher :
Elsevier Science, Amsterdam, Netherlands
Volume :
121
Pages :
27-35
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
ULiège - Université de Liège [BE]
Available on ORBi :
since 11 June 2014

Statistics


Number of views
96 (13 by ULiège)
Number of downloads
9 (4 by ULiège)

Scopus citations®
 
14
Scopus citations®
without self-citations
14
OpenCitations
 
11

Bibliography


Similar publications



Contact ORBi