Boosting mesenchymal stem cells regenerative activities on biopolymers-calcium phosphate functionalized collagen membrane.
Fiche publication
Date publication
juin 2019
Journal
Colloids and surfaces. B, Biointerfaces
Auteurs
Membres identifiés du Cancéropôle Est :
Pr GANGLOFF Sophie, Dr KERDJOUDJ Halima, Pr ALEM-MARCHAND Halima
Tous les auteurs :
Dubus M, Rammal H, Alem H, Bercu NB, Royaud I, Quilès F, Boulmedais F, Gangloff SC, Mauprivez C, Kerdjoudj H
Lien Pubmed
Résumé
The regeneration of bone-soft tissue interface, using functional membranes, remains challenging and can be promoted by improving mesenchymal stem cells (MSCs) paracrine function. Herein, a collagen membrane, used as guided bone regeneration membrane, was functionalized by calcium phosphate, chitosan and hyaluronic acid hybrid coating by simultaneous spray of interacting species process. Composed of brushite, octacalcium phosphate and hydroxyapatite, the hybrid coating increased the membrane stiffness by 50%. After 7 days of MSCs culture on the hybrid coated polymeric membrane, biological studies were marked by a lack of osteoblastic commitment. However, MSCs showed an enhanced proliferation along with the secretion of cytokines and growth factors that could block bone resorption and favour endothelial cell recruitment without exacerbating polynuclear neutrophils infiltration. These data shed light on the great potential of inorganic/organic coated collagen membranes as an alternative bioactive factor-like platform to improve MSCs regenerative capacity, in particular to support bone tissue vascularization and to modulate inflammatory infiltrates.
Mots clés
Bone regeneration, Cytokines, Growth factors, Human stem cells, Inorganic/organic hybrid coating
Référence
Colloids Surf B Biointerfaces. 2019 Jun 15;181:671-679