Stem Cells International / 2018 / Article / Fig 5

Research Article

Romidepsin Promotes Osteogenic and Adipocytic Differentiation of Human Mesenchymal Stem Cells through Inhibition of Histondeacetylase Activity

Figure 5

Romidepsin promoted adipogenesis and osteogenesis through inhibition of HDAC activity. (a) Western blot analysis of H3K9Ac and H3K4me2 histone markers in romidepsin-treated cells (24 h) versus vehicle-treated control cells. (b) Quantification of total cellular HDAC enzymatic activity of romidepsin-treated hMSCs (30 min) compared with control cells. Trichostatin A was used as a positive control. Data are presented as mean ± SEM from two independent experiments, , . (c) H3K9Ac ChIP-qPCR for the promoter regions of PPARG, KLF15, SP7, and ALPL in romidepsin versus DMSO-treated hMSCs. Data are presented as mean binding events detected per 1000 cells ± SD (). (d) Working model of the molecular mechanisms of enhanced adipocytic and osteogenic differentiation of hMSCs by romidepsin through amplification of the FAK and TGFβ signaling pathways. ; .

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