Fiche publication
Date publication
janvier 2006
Auteurs
Membres identifiés du Cancéropôle Est :
Dr VOEGEL Jean-Claude
,
Pr MENU Patrick
,
Pr BOURA Cédric
Tous les auteurs :
Boura C, Muller S, Voegel JC, Schaaf P, Stoltz JF, Menu P
Lien Pubmed
Résumé
Recently, the use of polyelectrolyte films has been suggested as a new versatile technique of surface modification aimed at tissue engineering. In the present study, we evaluated the expression of intercellular adhesion molecule (ICAM)-1 of endothelial cells (ECs) seeded on two types of polyelectrolyte multilayer films either terminated by poly(D-lysine) (PDL) or poly(allylamine hydrochloride) (PAH). This work showed that chemical stimulations with tumor necrosis factor (TNF)-alpha induced the ICAM-1 expression of ECs differently depending largely on the film architecture employed. Compared with PAH-ending films, the PDL-ending ones upregulated the ICAM-1 expression of the ECs after a prolonged exposition to TNF-alpha, rendering this film type less favorable in tissue engineering. Cytochalasin D (an F-actin disrupting agent) showed the involvement of the cytoskeleton in the upregulation of ICAM-1 for cells deposited on films terminated by PDL. The PAH-ending films did not perturb the ICAM-1 expression of ECs and might thus enhance the seeding of ECs in vascular engineering.
Référence
Cell Biochem Biophys. 2006;44(2):223-31.
