[HTML][HTML] Effect of parathyroid hormone on early chondrogenic differentiation from mesenchymal stem cells
Y Zhang, K Kumagai, T Saito - Journal of Orthopaedic Surgery and …, 2014 - Springer
Y Zhang, K Kumagai, T Saito
Journal of Orthopaedic Surgery and Research, 2014•SpringerBackground Treatment of articular cartilage injuries remains a difficult challenge due to the
limited capacity for intrinsic repair. Mesenchymal stem cells (MSCs) can differentiate into
chondrocytes under certain culture conditions. This study focused on the modulatory effects
of parathyroid hormone (PTH) on chondrogenic differentiation from MSCs. Methods MSCs
were treated with various concentrations of PTH under chondrogenic pellet culture
condition. RNA was isolated for real-time polymerase chain reaction (PCR) and gene …
limited capacity for intrinsic repair. Mesenchymal stem cells (MSCs) can differentiate into
chondrocytes under certain culture conditions. This study focused on the modulatory effects
of parathyroid hormone (PTH) on chondrogenic differentiation from MSCs. Methods MSCs
were treated with various concentrations of PTH under chondrogenic pellet culture
condition. RNA was isolated for real-time polymerase chain reaction (PCR) and gene …
Background
Treatment of articular cartilage injuries remains a difficult challenge due to the limited capacity for intrinsic repair. Mesenchymal stem cells (MSCs) can differentiate into chondrocytes under certain culture conditions. This study focused on the modulatory effects of parathyroid hormone (PTH) on chondrogenic differentiation from MSCs.
Methods
MSCs were treated with various concentrations of PTH under chondrogenic pellet culture condition. RNA was isolated for real-time polymerase chain reaction (PCR) and gene expressions of collagen type II α1 chain (Col2a1), collagen type X α1 chain, collagen type I α1 chain, SRY-box9 (Sox9), and type 1 PTH/PTHrP receptor (PTH1R) were examined. Chondrogenic differentiation was also evaluated by histological findings.
Results
PTH had opposite effects on chondrogenesis, depending on the concentration. A low to moderate concentration of PTH promoted chondrogenic differentiation of MSCs with increased expression of Sox9, Col2a1, and PTH1R, whereas chondrogenesis of MSCs was inhibited rather than stimulated with a higher concentration of PTH.
Conclusion
This study provides insights into the modulatory effect of PTH on chondrogenic differentiation from MSCs and the therapeutic potential for cartilage regeneration. Based on clinical experience regarding the efficacy and safety of PTH for bone metabolism, PTH may also be useful clinically for cartilage repair.
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