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. 2020 Aug 5;8:946. doi: 10.3389/fbioe.2020.00946

FIGURE 4.

FIGURE 4

Effect of cell sheet culture on senescence and apoptosis related gene expression. (A) Expression of cell aging related genes was tested by Real-time PCR using total RNA isolated from BMSC sheets, including p16, p21, p53, p27 and Caspase-3. Anti-aging gene expression of Bcl-2, Bax, Cyclin D1, and β-catenin. *P < 0.05 vs. Day 1 cells and #P < 0.05 vs. Day 4 cells. All experiments were performed in triplicate. (B) SA-β-gal staining showed that 3-day Wnt3a treatment reduced cell senescence in cell sheet cultures. (C) Western blot showed an increase of p27 and β-catenin in BMSCs after treatment with Wnt3a for 3 days. (D) Quantification of western blot bands shown in (C).