β-Catenin Accumulation is Associated with Increased Expression of Nanog Protein and Predicts Maintenance of MSC Self-Renewal
| Autor: | Chung Gyu Park, Soung Hoo Jeon, Sang Jin Yu, Su Jin Cho, Hyun Je Kim, Eui Seok Lee |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Homeobox protein NANOG Beta-catenin Cellular differentiation Human mesenchymal stem cells (hMSCs) Self-renewing cells Epidermalgrowth factor (EGF) beta-Catenin Biomedical Engineering lcsh:Medicine Article 03 medical and health sciences Glycogen Synthase Kinase 3 Mice GSK-3 Autologous transplantation Animals Humans Wnt Signaling Pathway beta Catenin Cell Proliferation Transplantation biology Epidermal Growth Factor Chemistry lcsh:R Wnt signaling pathway Nanog Homeobox Protein Cell Differentiation Mesenchymal Stem Cells Cell Biology Cell biology Wnt Proteins 030104 developmental biology Catenin biology.protein |
| Zdroj: | Cell Transplantation, Vol 26 (2017) CELL TRANSPLANTATION(26): 2 |
| Popis: | Human mesenchymal stem cells (hMSCs) are self-renewing cells with the ability to differentiate into organized, functional network of cells. Recent studies have revealed that activation of the Wnt/β-catenin pathway by a glycogen synthase kinase (GSK)-3-specific pharmacological inhibitor, Bio, results in the maintenance of self-renewal in both mouse and human ES cells. The molecular mechanism behind the maintenance of hMSCs by these factors, however, is not fully understood. We found that rEGF enhances the level of β-catenin, a component of the Wnt/β-catenin signaling pathway. Furthermore, it was found that β-catenin upregulates Nanog. EGF activates the β-catenin pathway via the Ras protein and also increased the Nanog protein and gene expression levels 2 h after rEGF treatment. These results suggest that adding EGF can enhance β-catenin and Nanog expression in MSCs and facilitate EGF-mediated maintenance of MSC self-renewal. EGF was shown to augment MSC proliferation while preserving early progenitors within MSC population and thus did not induce differentiation. Thus, EGF not only can be used to expand MSC in vitro but also be utilized to autologous transplantation of MSCs in vivo. |
| Databáze: | OpenAIRE |
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