Fibrin gel improved the spatial uniformity and phenotype of human chondrocytes seeded on collagen scaffolds
| Autor: | Damjan Radosavljevic, Nevenka Kregar Velikonja, Elvira Malicev |
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| Rok vydání: | 2006 |
| Předmět: |
Adult
Male Surface Properties Fibrin Tissue Adhesive Bioengineering Applied Microbiology and Biotechnology Fibrin Chondrocyte Chondrocytes Tissue engineering medicine Humans Fibrin glue Cells Cultured Aggrecan Tissue Engineering biology Reverse Transcriptase Polymerase Chain Reaction Chemistry Cell Differentiation Anatomy Chondrogenesis Cell biology Collagen type I alpha 1 Phenotype medicine.anatomical_structure biology.protein RNA Collagen Biotechnology |
| Zdroj: | Biotechnology and Bioengineering. 96:364-370 |
| ISSN: | 1097-0290 0006-3592 |
| DOI: | 10.1002/bit.21038 |
| Popis: | A scaffold made of equine collagen type I based material has been assessed for its use in the preparation of tissue-engineered cartilage implants with human articular chondrocytes. Improvements of cell-seeding efficiency and specific gene expression were studied by combining solid scaffold with fibrin glue or human blood plasma. Following 3 weeks of static culture, mRNA expression levels of collagen type I, collagen type II, aggrecan and versican were analyzed by real-time quantitative PCR and compared to those in native cartilage and monolayer cell cultures. Constructs prepared with fibrin glue or plasma showed higher cell seeding efficiencies than those prepared without gel. Chondrocytes seeded directly onto a collagen scaffold appeared fibroblastic in shape while those encapsulated in fibrin gel were spherical. The presence of fibrin glue positively influences on mRNA levels of collagen type II and aggrecan, while blood plasma enhanced only the level of collagen type II expression. Levels of collagen type I and versican decreased in presence of fibrin glue. In orthopaedics, the combination of solid collagen fleece with fibrin gel for implant preparation is seen to be preferred over solid material or even cells in a suspension, since fibrin gel improves seeding capacity of the scaffold, supports equal distribution of cells and stimulates higher chondrogenic phenotype expression. |
| Databáze: | OpenAIRE |
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