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- W2968461036 abstract "Rho-associated protein kinase (ROCK) signaling correlates with cell shape, with decreased cell spreading accompanied by decreased ROCK activity. However, how cell shape and ROCK activity impact the chondrogenesis of mesenchymal stem cells (MSCs) remains inconclusive. Here we examine the effects of ROCK inhibition on human MSC chondrogenesis in four different culture models, including three-dimensional (3D) microribbon (μRB) scaffolds, two-dimensional hydrogel (2D-HG) substrates, 3D hydrogels (3D-HGs), and pellet. For each culture model involving biomaterials, four polymers were compared, including gelatin, chondroitin sulfate, hyaluronic acid, and polyethylene glycol. ROCK inhibition decreased MSC chondrogenesis in μRB model, enhanced chondrogenesis in pellet, and had minimal effect in 2D-HG or 3D-HG models. Furthermore, we demonstrate that MSC chondrogenesis cannot be predicted using ROCK signaling alone. While varying biomaterial compositions can impact the amount or phenotype of resulting cartilage, varying biomaterials did not change the chondrogenic response to ROCK inhibition within each culture model. Regardless of culture model or ROCK expression, increased cartilage formation was always accompanied by enhanced N-cadherin expression and production, suggesting that N-cadherin is a robust marker to select culture conditions that promote chondrogenesis. Together, the results from this study may be used to enhance MSC-based cartilage regeneration in different culture models. Here we assessed the effects of Rho-associated protein kinase (ROCK) inhibition on mesenchymal stem cell (MSC) chondrogenesis in different culture models, including three-dimensional (3D) microribbon scaffolds, two-dimensional hydrogel substrates, 3D hydrogels, and pellet culture. Our results demonstrate that effects of ROCK inhibition on MSC chondrogenesis differ substantially depending on culture models. Furthermore, MSC chondrogenesis cannot be predicted using ROCK signaling alone. The results from this study fill in a gap of knowledge in the correlation between ROCK signaling and MSC chondrogenesis, which may be used to enhance MSC-based cartilage regeneration in different culture models." @default.
- W2968461036 created "2019-08-22" @default.
- W2968461036 creator A5043187815 @default.
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- W2968461036 date "2020-02-01" @default.
- W2968461036 modified "2023-09-27" @default.
- W2968461036 title "The Effects of<i>ROCK</i>Inhibition on Mesenchymal Stem Cell Chondrogenesis Are Culture Model Dependent" @default.
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- W2968461036 doi "https://doi.org/10.1089/ten.tea.2019.0068" @default.
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