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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Moutos, Franklin T. Guilak, Farshid |
| Description | Country affiliation: United States Author Affiliation: Moutos FT ( Department of Surgery, Duke University Medical Center , Durham, NC, USA.) |
| Abstract | Articular cartilage possesses complex mechanical properties that provide healthy joints the ability to bear repeated loads and maintain smooth articulating surfaces over an entire lifetime. In this study, we utilized a fiber-reinforced composite scaffold designed to mimic the anisotropic, nonlinear, and viscoelastic biomechanical characteristics of native cartilage as the basis for developing functional tissue-engineered constructs. Three-dimensionally woven poly(epsilon-caprolactone) (PCL) scaffolds were encapsulated with a fibrin hydrogel, seeded with human adipose-derived stem cells, and cultured for 28 days in chondrogenic culture conditions. Biomechanical testing showed that PCL-based constructs exhibited baseline compressive and shear properties similar to those of native cartilage and maintained these properties throughout the culture period, while supporting the synthesis of a collagen-rich extracellular matrix. Further, constructs displayed an equilibrium coefficient of friction similar to that of native articular cartilage (mu(eq) approximately 0.1-0.3) over the prescribed culture period. Our findings show that three-dimensionally woven PCL-fibrin composite scaffolds can be produced with cartilage-like mechanical properties, and that these engineered properties can be maintained in culture while seeded stem cells regenerate a new, functional tissue construct. |
| File Format | HTM / HTML |
| ISSN | 21524947 |
| e-ISSN | 21524955 |
| DOI | 10.1089/ten.TEA.2009.0480 |
| Journal | Tissue Engineering Part A |
| Issue Number | 4 |
| Volume Number | 16 |
| Language | English |
| Publisher | Mary Ann Liebert, Inc. |
| Publisher Date | 2010-04-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Discipline Biotechnology Cartilage, Articular Surgery Polyesters Tissue Engineering Tissue Scaffolds Adult Stem Cells Cytology Physiology Transplantation Biocompatible Materials Chemistry Biomechanical Phenomena Chondrocytes Chondrogenesis Collagen Metabolism Compressive Strength Extracellular Matrix Fibrin Friction Hydrogels Materials Testing Microscopy, Electron, Scanning Regeneration Shear Strength Tensile Strength Research Support, N.i.h., Extramural Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
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