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. 2018 May 3;9(5):512. doi: 10.1038/s41419-018-0545-6

Fig. 6. Upregulation of Dicer1 reversed the senescent features and osteogenic differentiation of MM-MSCs.

Fig. 6

ad The expressions of Dicer1 mRNA and protein were dramatically increased after adenovirus transfection. And the protein expression of p21 decreased. e Representative micrographs after SA-β-gal staining of control MSC (MM-MSC without transfection), AD-Dicer1 MSC (MM-MSC transfected with Dicer1 adenovirus lentiviruses) and AD-GFP (MM-MSC transfected with control lentiviruses) (100× magnification). f The percentages of SA-β-gal-positive cells. g Cell cycle analysis of Dicer1-KD MSC by flow cytometric analysis. Dicer1 AD caused an increasing proportion of cells in the S phase and a decrease of those in the G1 phase. h MM-MSCs transfected with AD-Dicer1 proliferate more quickly than either MM-MSCs or MM-MSCs transfected with AD-GFP. i Typical images after Alizarin Red S staining on day 21 of osteogenic differentiation. j Relative calcium production (OD 572 nm) by AD-Dicer1 MSC, was significantly higher after 21 days of differentiation as compared with controls. k The ALP activity of AD-Dicer1 MSC was significantly increased after 3 days osteogenic differentiation. l, m Relative RUNX2 and ALP mRNA expression levels. The results are expressed as means ± SD. The average of three replicates is displayed. Compared with controls, the significance was set as *p ≤ 0.05, ** p ≤ 0.01