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• W2327753150 endingPage "232596711455078" @default.
• W2327753150 startingPage "232596711455078" @default.
• W2327753150 abstract "There is a need for tools to predict the chondrogenic potency of autologous cells for cartilage repair.To evaluate previously proposed chondrogenic biomarkers and to identify new biomarkers in the chondrocyte transcriptome capable of predicting clinical success or failure after autologous chondrocyte implantation.Controlled laboratory study and case-control study; Level of evidence, 3.Five patients with clinical improvement after autologous chondrocyte implantation and 5 patients with graft failures 3 years after implantation were included. Surplus chondrocytes from the transplantation were frozen for each patient. Each chondrocyte sample was subsequently thawed at the same time point and cultured for 1 cell doubling, prior to RNA purification and global microarray analysis. The expression profiles of a set of predefined marker genes (ie, collagen type II α1 [COL2A1], bone morphogenic protein 2 [BMP2], fibroblast growth factor receptor 3 [FGFR3], aggrecan [ACAN], CD44, and activin receptor-like kinase receptor 1 [ACVRL1]) were also evaluated.No significant difference in expression of the predefined marker set was observed between the success and failure groups. Thirty-nine genes were found to be induced, and 38 genes were found to be repressed between the 2 groups prior to autologous chondrocyte implantation, which have implications for cell-regulating pathways (eg, apoptosis, interleukin signaling, and β-catenin regulation).No expressional differences that predict clinical outcome could be found in the present study, which may have implications for quality control assessments of autologous chondrocyte implantation. The subtle difference in gene expression regulation found between the 2 groups may strengthen the basis for further research, aiming at reliable biomarkers and quality control for tissue engineering in cartilage repair.The present study shows the possible limitations of using gene expression before transplantation to predict the chondrogenic and thus clinical potency of the cells. This result is especially important as the chondrogenic potential of the chondrocytes is currently part of quality control measures according to European and American legislations regarding advanced therapies." @default.
• W2327753150 created "2016-06-24" @default.
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• W2327753150 date "2014-09-01" @default.
• W2327753150 modified "2023-10-14" @default.
• W2327753150 title "Clinical Outcome 3 Years After Autologous Chondrocyte Implantation Does Not Correlate With the Expression of a Predefined Gene Marker Set in Chondrocytes Prior to Implantation but Is Associated With Critical Signaling Pathways" @default.
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• W2327753150 doi "https://doi.org/10.1177/2325967114550781" @default.
• W2327753150 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4555627" @default.
• W2327753150 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/26535366" @default.
• W2327753150 hasPublicationYear "2014" @default.
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