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- W2910402246 abstract "As an alternative to chondrocytes-based cartilage repair, stem cell-based therapies have been investigated. Specifically, human synovium-derived stem cells (hSSCs) are a promising cell source based on their highly capacities for chondrogenesis, but some methodological improvements are still required towards optimal cartilage regeneration. Recently, a small compound, TD-198946, was reported to promote chondrogenesis of several stem cells, but the effect on hSSCs is still unknown. This study aimed to examine the effects of TD-198946 on chondrocyte differentiation and cartilaginous tissue formation with hSSCs. A range of concentrations of TD-198946 were examined in chondrogenic cultures of hSSC-derived cell pellets. The effect of TD-198946 on glycosaminoglycan (GAG) production, chondrocyte marker expression, and cartilaginous tissue formation was assessed. At concentrations >1 nM, TD-198946 dose-dependently enhanced GAG production, particularly hyaluronan, whereas chondrocyte differentiation was not impacted. When combined with transforming growth factor β3 (TGFβ3), TD-198946 promoted chondrocyte differentiation and production of cartilaginous matrices at doses <1 nM as judged by SOX9, S100, and type 2 collagen upregulation. Conversely, doses >1 nM TD-198946 attenuated TGFβ3-associated chondrocyte differentiation, but aggrecan was efficiently produced at 1 to 10 nM TD-198946 as judged by safranin O staining. Thus, TD-198946 exhibited different dose ranges for either GAG synthesis or chondrocyte differentiation. Regarding use of TD-198946 for in vitro engineering of cartilage, cartilaginous particles rich in type 2 collagen and GAG were predominately created with TGFβ3 + 0.25 nM TD-198946. These studies have demonstrated that TD-198946 synergistically enhances chondrogenesis of hSSCs in a unique dose range, and such findings may provide a novel strategy for stem cell-based cartilage therapy." @default.
- W2910402246 created "2019-01-25" @default.
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- W2910402246 date "2019-02-20" @default.
- W2910402246 modified "2023-10-16" @default.
- W2910402246 title "Effect of the small compound <scp>TD</scp> ‐198946 on glycosaminoglycan synthesis and transforming growth factor β3‐associated chondrogenesis of human synovium‐derived stem cells in vitro" @default.
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- W2910402246 doi "https://doi.org/10.1002/term.2795" @default.
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