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Expression of PI3K/AKT Signaling Pathway in IFN-β-induced Differentiation of Human Mesenchymal Stem Cells into Chondroblasts

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  • Zhang Li-Jun
  • Huang Zhi-Li
  • Wang Yan
  • Li Qiao-Qiao

Abstract

Induction of chondrogenic differentiation from MSCs are necessary for qualification as sources of seed cells for cartilage tissue engineering。Our previous research showed IFN-β maybe as a helper of TGF-βto promote chondrogenesis of hMSCs. In this paper, we investigated the expression of PI3K/AKT during the chondrogenic differentiation of hMSCs，hMSCs were divided into Blank control group, TGF-β3 group and TGF-β3+IFN-β1a group and then were induced into cartilage pellets respectively . At day 4,7,14,21, the pellets were collected and qRT-PCR and Western blotting were used to detect the relative expression of PI3K and AKT. The qPCR results showed that the mRNA expression levels of PI3K and AKT were up-regulated by TGF-β3 induced. Furthermore, the synergetic effect of TGF-β3 and IFN-β1a would up-regulate the mRNA expression levels of PI3K and AKT significantly. The Western blotting results showed that TGF-β3 also could up-regulate the expression of PI3K protein and with IFN-β1a the expression level increased significantly. However, according to AKT protein, TGF-β3 maybe only could up-regulate AKT(S473) expression, and with IFN-β1a the AKT(T308) expression could be up-regulated .These results showed that the synergetic effect of TGF-β3 and IFN-β1a could up-regulate the gene expression in PI3K/AKT signaling pathway and then promote hMSCs chondrogenic differentiation.

Suggested Citation

  • Zhang Li-Jun & Huang Zhi-Li & Wang Yan & Li Qiao-Qiao, 2019. "Expression of PI3K/AKT Signaling Pathway in IFN-β-induced Differentiation of Human Mesenchymal Stem Cells into Chondroblasts," International Journal of Sciences, Office ijSciences, vol. 8(08), pages 23-28, August.
    • Handle: RePEc:adm:journl:v:8:y:2019:i:8:p:23-28
    DOI: 10.18483/ijSci.2156
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