Abstract
AimsWe have evaluated the potential of a three-dimensional (3D) thermoreversible gelation polymer (TGP) matrix in enhancing miRNA 140 expression (a biomarker correlating with homeostasis and cartilage regeneration) during the in vitro expansion of osteoarthritis (OA)-affected human chondrocytes. Materials and methodsOA-chondrocytes were cultured in two-dimensional (2D) monolayer followed by culture in 3D-TGP. miRNA 140 expression levels in cell culture supernatant followed by expression in the cell lysate of both 2D and 3D-TGP cultures were analyzed. Key findingsThe expression of miRNA 140 in cell culture supernatant from the 3D-TGP group was 0.001 to 0.002% that in 2D culture supernatant while in the cell lysate, miRNA 140 expression in the 3D-TGP was nearly 30-fold higher than that of 2D group. SignificanceThe 3D-TGP matrix allows enhanced expression of miRNA 140 in OA-affected human chondrocytes in vitro which after necessary validations can be applied in clinical transplantation to significantly improve the outcome.
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