Role of Slug transcription factor in human mesenchymal stem cells.
Bottom Line: In this study we found that Slug-silenced cells changed in morphology, decreased in their migration ability, increased Sox9 and Sox5 and decreased Sox6 and STAT1 expression.On the contrary, the effect of Slug depletion on Runx2 was influenced by cell type.Interestingly, we demonstrated a direct in vivo regulatory action of Slug by chromatin immunoprecipitation, showing a specific recruitment of this TF in the promoter of Runx2 and Sox9 genes.
Affiliation: Dipartimento di Biochimica e Biologia Molecolare, Sezione di Biologia Molecolare, Università degli Studi di Ferrara, Ferrara, Italy.Show MeSH
Related in: MedlinePlus
Mentions: We then investigated the osteogenic potential of hMSCs from the three sources. At 21 days of differentiation, the cultures showed the presence of mineralized nodules following alizarin red staining analysis (Fig. 6A). These data support the hypothesis that MSCs can be successfully differentiated towards osteogenic lineage when appropriately stimulated in vitro. Interestingly, mineralization occurred at day 7 only for hWJ-MSC whereas for hTP- and hIC-MSC started from day 14. In addition, we noticed that, both at day 14 and 21, mineralization was significantly increased in hTP-MSC (P = 0.003 and 0.006, respectively) and hIC-MSC (P = 0.00001 and 0.006, respectively) compared to hWJ-MSC. Comparing hTP- and hIC-MSC we observed that, whereas at day 14 mineralization was significantly higher in hIC-MSC than in hTP-MSC (P = 0.008), at day 21 it reached approximately the same values in both cell sources.
Affiliation: Dipartimento di Biochimica e Biologia Molecolare, Sezione di Biologia Molecolare, Università degli Studi di Ferrara, Ferrara, Italy.