Abstract
To study the effect of Clobetasol propionate (Clo) on the differentiation of nasal
mesenchymal stem cells (EMSCs) into neuron-like cells. Methods: EMSCs were isolated and cultured by the
adherent screening method, and the EMSCs amplified in vitro were identified by immunofluorescence. The
effect of Clo on the proliferation of EMSCs was examined by MTT assay. Induced neuroblast-like cells were
divided into the Clo group, Sonic hedgehog (SHH) group, and control group. All-trans retinoic acid (ATRA) was
used to induce differentiation into neuron-like cells. Changes in cell morphology were observed under inverted
microscope, and detection of neuronal cell-associated proteins was accomplished by immunohistochemistry and
immunoblot methods. Results: EMSCs isolated and cultured in vitro displayed high expression levels of
mesenchymal and neural stem cell markers vimentin and nestin. After induction of EMSCs into neuroblast-like
cells for 7 days, the EMSCs in the Clo and SHH groups showed bipolar and multipolar typical neuron-like cell
morphology and high expression of neuronal cell-associated proteins. At the same time, the expression levels of
SHH and SMO in the EMSCs of the Clo group were significantly higher than those of the control group, and
there was no significant difference compared with that of the SHH group (P>0.05). Data showed that Clo could
promote the secretion of endogenous brain derived neurotrophic factor (BDNF) and nerve growth factor (NGF)
by EMSCs. Conclusion: Clo can promote the differentiation of EMSCs into neuron-like cells by activating the
SHH signaling pathway and up-regulating the levels of endogenous neurotrophic factors.
Key words
nasal ectomesenchymal stem cells
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Effect of Clobetasol on Differentiation of Nasal Ectomesenchymal Stem Cells into
Neuron-Like Cells[J]. Neural Injury and Functional Reconstruction. 2019, 14(1): 1-5
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