Article (Scientific journals)
Added Value of Biophysics to Study Lipid-Driven Biological Processes: The Case of Surfactins, a Class of Natural Amphiphile Molecules
Gilliard, Guillaume; Furlan, Aurélien; Smeralda, Willy et al.
2022In International Journal of Molecular Sciences, 23 (22), p. 13831
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Keywords :
surfactin; biomimetic membrane models; molecular biophysics; lipid-mediated sensing; membrane interactions; biological mechanism
Abstract :
[en] The role of membrane lipids is increasingly claimed to explain biological activities of natural amphiphile molecules. To decipher this role, biophysical studies with biomimetic membrane models are often helpful to obtain insights at the molecular and atomic levels. In this review, the added value of biophysics to study lipid-driven biological processes is illustrated using the case of surfactins, a class of natural lipopeptides produced by Bacillus sp. showing a broad range of biological activities. The mechanism of interaction of surfactins with biomimetic models showed to be dependent on the surfactins-to-lipid ratio with action as membrane disturber without membrane lysis at low and intermediate ratios and a membrane permeabilizing effect at higher ratios. These two mechanisms are relevant to explain surfactins’ biological activities occurring without membrane lysis, such as their antiviral and plant immunity-eliciting activities, and the one involving cell lysis, such as their antibacterial and hemolytic activities. In both biological and biophysical studies, influence of surfactin structure and membrane lipids on the mechanisms was observed with a similar trend. Hence, biomimetic models represent interesting tools to elucidate the biological mechanisms targeting membrane lipids and can contribute to the development of new molecules for pharmaceutical or agronomic applications.
Research center :
TERRA Research Centre. Chimie des agro-biosystèmes - ULiège
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Gilliard, Guillaume   ;  Université de Liège - ULiège > TERRA Research Centre
Furlan, Aurélien  ;  Université de Liège - ULiège > Département GxABT > Chimie des agro-biosystèmes
Smeralda, Willy ;  Université de Liège - ULiège > Département GxABT > Microbial technologies
Prsic, Jelena  ;  Université de Liège - ULiège > TERRA Research Centre
Deleu, Magali  ;  Université de Liège - ULiège > TERRA Research Centre > Chimie des agro-biosystèmes
 These authors have contributed equally to this work.
Language :
English
Title :
Added Value of Biophysics to Study Lipid-Driven Biological Processes: The Case of Surfactins, a Class of Natural Amphiphile Molecules
Publication date :
10 November 2022
Journal title :
International Journal of Molecular Sciences
ISSN :
1661-6596
eISSN :
1422-0067
Publisher :
MDPI AG
Volume :
23
Issue :
22
Pages :
13831
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
FU - Fondation Universitaire [BE]
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture [BE]
Interreg France-Wallonie-Vlaanderen [BE]
Funding number :
PDR T.0063.19; Fria 1.E.069.20F.; 1.1.338 INTICOSM
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