NDLI: Dual growth factor-releasing nanoparticle/hydrogel system for cartilage tissue engineering

Content Provider	Springer Nature Link
Author	Lim, Sung Mook Oh, Se Heang Lee, Hee Hoon Yuk, Soon Hong Im, Gun Il Lee, Jin Ho
Copyright Year	2010
Abstract	In order to induce the chondrogenesis of mesenchymal stem cells (MSCs) in tissue engineering, a variety of growth factors have been adapted and encouraging results have been demonstrated. In this study, we developed a delivery system for dual growth factors using a gelation rate controllable alginate solution (containing BMP-7) and polyion complex nanoparticles (containing TGF-β$_{2}$) to be applied for the chondrogenesis of MSCs. The dual growth factors (BMP-7/TGF-β$_{2}$)-loaded nanoparticle/hydrogel system showed a controlled release of both growth factors: a faster release of BMP-7 and a slower release of TGF-β$_{2}$, ca., approximately 80 and 30% release at the end of an incubation period (21 days), respectively, which may be highly desirable for chondrogenic differentiation of MSCs. On the contrary, the release of each growth factor from the dual growth factors-loaded hydrogel (without the nanoparticles) was much slower than that of the nanoparticle/hydrogel system, approximately 36% (BMP-7) and 16% (TGF-β$_{2}$) for 21 days, and this is more than likely attributed to the aggregation between growth factors during the hydrogel fabrication step. The nanoparticle/hydrogel system with separate growth factor loading may provide desirable growth factor delivery kinetics for cartilage regeneration, as well as the chondrogenesis of MSCs.
Starting Page	2593
Ending Page	2600
Page Count	8
File Format	PDF
ISSN	09574530
Journal	Journal of Materials Science: Materials in Medicine
Volume Number	21
Issue Number	9
e-ISSN	15734838
Language	English
Publisher	Springer US
Publisher Date	2010-06-25
Publisher Place	Boston
Access Restriction	Subscribed
Subject Keyword	Surfaces and Interfaces, Thin Films Characterization and Evaluation of Materials Metallic Materials Ceramics, Glass, Composites, Natural Methods Polymer Sciences Biomaterials
Content Type	Text
Resource Type	Article
Subject	Biomaterials Biophysics Bioengineering Biomedical Engineering

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