Article (Scientific journals)
Sea star-inspired recombinant adhesive proteins self-assemble and adsorb on surfaces in aqueous environments to form cytocompatible coatings
Lefevre, Mathilde; Flammang, Patrick; Aranko, A. Sesilja et al.
2020In Acta Biomaterialia, 112, p. 62-74
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Abstract :
[en] Sea stars adhere to various underwater substrata using an efficient protein-based adhesive secretion. The protein Sfp1 is a major component of this secretion. In the natural glue, it is cleaved into four subunits (Sfp1 Alpha, Beta, Delta and Gamma) displaying specific domains which mediate protein-protein or protein-carbohydrate interactions. In this study, we used the bacterium E. coli to produce recombinantly two fragments of Sfp1 comprising most of its functional domains: the C-terminal part of the Beta subunit (rSfp1 Beta C-term) and the Delta subunit (rSfp1 Delta). Using native polyacrylamide gel electrophoresis and size exclusion chromatography, we show that the proteins self-assemble and form oligomers and aggregates in the presence of NaCl. Moreover, they adsorb onto glass and polystyrene upon addition of Na+ and/or Ca2+ ions, forming homogeneous coatings or irregular meshworks, depending on the cation species and concentration. We show that coatings made of each of the two proteins have no cytotoxic effects on HeLa cells and even increase their proliferation. We propose that the Sfp1 recombinant protein coatings are valuable new materials with potential for cell culture or biomedical applications.
Research center :
CIRMAP - Centre d'Innovation et de Recherche en Matériaux Polymères
Disciplines :
Biochemistry, biophysics & molecular biology
Biotechnology
Author, co-author :
Lefevre, Mathilde ;  Université de Mons > Faculté des Sciences > Biologie cellulaire
Flammang, Patrick  ;  Université de Mons > Faculté des Sciences > Service de Biologie des Organismes Marins et Biomimétisme
Aranko, A. Sesilja
Linder, Markus B.
Scheibel, Thomas
Humenik, Martin
Leclercq, Maxime ;  Université de Mons > Faculté des Sciences > Service de Chimie des matériaux nouveaux
Surin, Mathieu  ;  Université de Mons > Faculté des Sciences > Service de Chimie des matériaux nouveaux
Tafforeau, Lionel  ;  Université de Mons > Faculté des Sciences > Service de Biologie cellulaire
Wattiez, Ruddy  ;  Université de Mons > Faculté des Sciences > Service de Protéomie et Microbiologie
Leclère, Philippe  ;  Université de Mons > Faculté des Sciences > Chimie des matériaux nouveaux
Hennebert, Elise ;  Université de Mons > Faculté des Sciences > Service de Biologie cellulaire
Language :
English
Title :
Sea star-inspired recombinant adhesive proteins self-assemble and adsorb on surfaces in aqueous environments to form cytocompatible coatings
Publication date :
02 June 2020
Journal title :
Acta Biomaterialia
ISSN :
1742-7061
Publisher :
Elsevier, Netherlands
Volume :
112
Pages :
62-74
Peer reviewed :
Peer Reviewed verified by ORBi
Research unit :
S817 - Chimie des matériaux nouveaux
S828 - Protéomie et Microbiologie
S864 - Biologie des Organismes Marins et Biomimétisme
S815 - Biologie cellulaire
Research institute :
R400 - Institut de Recherche en Science et Ingénierie des Matériaux
R100 - Institut des Biosciences
Name of the research project :
Production and testing of recombinant sea star adhesive proteins - Fédération Wallonie Bruxelles
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since 04 June 2020

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