Decellularized cartilage extracellular matrix (ECM)-derived bioscaffolds have been designed as they provide a unique opportunity to carry out research on the mechanisms of chondrogenesis and its regulation. These scaffolds are used as a model in order to emulate different aspects relating to the formation, degeneration, and regeneration of the cartilage. This project has studied the interaction between the decellularized bovine articular cartilage and the blastema cells derived from the punched rabbit’s ear. Articular cartilage was dissected in fragments with 10 mm length and 2 mm thickness. Then, they were chemically decellularized with 2% sodium dodecyl sulfate (SDS) for 2 h. The tissue rings derived from the rabbit’s ear were assembled with the decellularized scaffolds and they were placed in a culture media for 30 days. These samples were fixed, sectioned, and microscopically studied. Micrographs of SEM electron microscopy and DAPI staining confirmed the decellularization of the scaffolds. FTIR analysis confirmed the preservation of ECM components including collagen II and proteoglycans. The optical microscopy observations confirmed migration, adherence, and penetration of the blastema cells into the scaffolds. The electron microscopy studies demonstrated that the blastema cells beside the scaffolds have triggered mutual interactions and merely progressed toward chondrogenic differentiation. The main objective is to identify and comprehend the interaction between cartilage matrix and blastema cells. The proposed model is an ideal model for fundamental studies in cartilage tissue engineering. The principles of tissue engineering must be taken in to account while studying such interactions.
Comparative Clinical Pathology – Springer Journals
Published: Jun 24, 2017
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