Journal
CELL BIOLOGY INTERNATIONAL
Volume 44, Issue 5, Pages 1168-1183Publisher
WILEY
DOI: 10.1002/cbin.11315
Keywords
cell differentiation; epothilone B; mesenchymal stem cells; motor neurons
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Funding
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences [30424-38-03-94]
- Tehran University of Medical Sciences [9311598022]
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Microtubule-stabilizing agents (MSAs), until now, have primarily been considered for their anti-proliferative effects in the setting of cancer. However, recent studies have revealed that one particular MSA, epothilone B (EpoB), can promote axonal regeneration after traumatic spinal cord injuries (SCI) even in the presence of inhibitor molecules such as neurite outgrowth inhibitor-A (Nogo-A). On the basis of the importance of having an efficient motor neuron (MN) differentiation protocol for stem cell therapy and the attention of MSAs for SCI treatment, our study investigated the effect of EpoB on human endometrial stem cells (hEnSCs) differentiation into MN-like cells. hEnSCs were isolated and characterized by flow cytometry. The hEnSC cell viability was evaluated by a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. To mimic the in vivo inhibitory environment, hEnSCs were also differentiated in the presence of Nogo-A. After 15 days of differentiation, the expressions of MN-markers were evaluated by real-time reverse-transcriptase polymerase chain reaction and immunofluorescence. According to the MTT assay results, three doses (1, 5, and 10 nM) of EpoB were selected to evaluate their effect on MN-differentiation. All selected doses can increase the efficacy of hEnSCs differentiation into MN-like cells. In particular, the 10 nM EpoB dosage was shown to increase the axon elongation, cell alignment, and upregulation of these MN-markers compared with other doses. EpoB can improve MN differentiation from hEnSC and potentially provide a unique route for neuronal replacement in the setting of SCI.
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