[Physical characterization of decellularized cartilage matrix for reconstructive rhinosurgery].
Laryngorhinootologie 2014;
93:756-63. [PMID:
25369160 DOI:
10.1055/s-0034-1384531]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
BACKGROUND
The use of autologous auricular and rib cartilage for the reconstruction of nasal defects and deformities is associated with a number of disadvantages. The development of alternative materials is therefore the focus of intensive research. Recent studies demonstrated that decellularized cartilage is a promising material for cartilage tissue engineering. Hence, the aim of this study was to characterize the materials surface and cellular reactions to the decellularized cartilage matrix in long term-3D-culture.
MATERIAL AND METHODS
Material geometry of decellularized cartilage was examined by microcomputed tomography as well as material characteristics by scanning and transmission electron microscopy. The expression of integrins on the surface of human chondrocytes was determined after seeding and migration into the scaffold.
RESULTS
After decellularization an obvious enlargement of the matrix surface and an intensive interaction between the chondrocytes and the collagen matrix was observed. ITGA1 and ITGB1 were upregulated indicating chondrogenic differentiation.
CONCLUSION
Therefore, decellularized porcine cartilage provides an optimal microstructure for human chondrocytes with respect to cell integration and matrix production. Thus, it offers promising characteristics for clinical application in reconstructive surgery.
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