Journal
CARTILAGE
Volume 13, Issue 2_SUPPL, Pages 650S-662SPublisher
SAGE PUBLICATIONS INC
DOI: 10.1177/19476035211007899
Keywords
extracellular matrix; biocompatibility; cytotoxicity; differentiation; cell markers; chondrogenic
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This study focused on testing a stable polysaccharide-rich collagen scaffold formed after cross-linking with oxidized gum arabic, evaluating its biocompatibility towards induced pluripotent stem cells and chondrocytes. The results suggest that the scaffold has potential applications in cartilage tissue engineering, showing promise in aiding the repair of injured articular cartilage.
Degenerative diseases associated with articular cartilage pose a huge burden on health care economics. The nature of the tissue involved and the changes therein do not allow self-healing; and most of these problems are progressive. Tissue engineering offers some solutions provided we focus on the right kind of cells and the appropriate surrounding niches created for a particular tissue. The present study deals with the formation of polysaccharide rich stable scaffold of collagen after cross-linking with oxidized gum arabic. The scaffold was tested for its biocompatibility and ability to support cells. The in vitro cytotoxicity of the scaffolds toward induced pluripotent stem cells and chondrocytes was evaluated. Evaluation of expression of lineage specific markers indicates differentiation of induced pluripotent stem cells to chondrogenic lineage and maintenance of chondrocytes per se when grown in the scaffold. Animal studies were carried out to study the efficacy of the scaffold to repair the knee injuries. Cells along with the scaffold appeared to be the best filling, in repair of injured cartilage. These studies show that these scaffolds are potential candidates in applications such as tissue engineering of cartilage.
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