Novel biomimetic tripolymer scaffolds consisting of chitosan, collagen type 1, and hyaluronic acid for bone marrow-derived human mesenchymal stem cells-based bone tissue engineering.
J Biomed Mater Res B Appl Biomater
; 102(8): 1825-34, 2014 Nov.
Article
de En
| MEDLINE
| ID: mdl-24723571
ABSTRACT
Human bone marrow-derived mesenchymal stem cells (hMSCs) are an ideal osteogenic cell source for bone tissue engineering (BTE). A scaffold, in the context of BTE, is the extracellular matrix (ECM) that provides the unique microenvironment and play significant role in regulating cell behavior, differentiation, and development in an in vitro culture system. In this study, we have developed novel biomimetic tripolymer scaffolds for BTE using an ECM protein, collagen type 1; an ECM glycosaminoglycan, hyaluronic acid; and a natural osteoconductive polymer, chitosan. The scaffolds were characterized by scanning electron microscopy (SEM) and swelling ratio. The scaffolds were seeded with hMSCs and tested for cytocompatibility and osteogenic potential. The scaffolds supported cell adhesion, enhanced cell proliferation, promoted cell migration, showed good cell viability, and osteogenic potential. The cells were able to migrate out from the scaffolds in favorable conditions. SEM, alkaline phosphatase assay, and immunofluorescent staining confirmed the differentiation of hMSCs to osteogenic lineage in the scaffolds. In conclusion, we have successfully developed biomimetic scaffolds that supported the proliferation and differentiation of hMSCs. These scaffolds hold great promise as a cell-delivery vehicle for regenerative therapies and as a support system for enhancing bone regeneration.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Cellules de la moelle osseuse
/
Collagène de type I
/
Matériaux biomimétiques
/
Chitosane
/
Structures d'échafaudage tissulaires
/
Cellules souches mésenchymateuses
/
Acide hyaluronique
Limites:
Adult
/
Female
/
Humans
/
Male
Langue:
En
Journal:
J Biomed Mater Res B Appl Biomater
Sujet du journal:
ENGENHARIA BIOMEDICA
Année:
2014
Type de document:
Article
Pays d'affiliation:
Inde