Abstract
Background: Repair of the nervous system in humans has always been complicated and faced difficulties. Cell transplantation approaches using biocompatible scaffolds might be an attractive therapeutic strategy for neuronal regeneration.
Objective: We designed a cell delivery platform based on polyurethane [PU] and modified it with iron oxide nanoparticles [Fe2O3 NPs] for neural induction of human-induced pluripotent stem cells [hiPSC]. Forskolin, IBMX, and different ratios of FBS were employed to induce neurogenesis of hiPSCs. Neural differentiations were assessed at the level of genes and proteins.
Methods: As was shown by MTT colorimetric assay, the proliferation and viability of SNL 76/7 on PU/ Fe2O3 were superior in comparison with pure PU and Fe2O3. hiPSCs cultured with PU/Fe2O3 exhibited an elevated expression of β3-tubulin, MAP2, NSE, OLIG2, as compared to controls. Furthermore, Acridine Orange staining assured the survival and viability of hiPSCs after 14 days of differentiation.
Results: All in all, our findings pointed out the biocompatibility and positive regulatory effect of PU/Fe2O3 on neural markers.
Conclusion: We believe this scaffold could be a potential candidate for future nerve differentiation applications.
Keywords: Neural differentiation, nanocomposite scaffold, human induced pluripotent stem cell, iron oxide nanoparticles, polyurethanes, Fe2O3.
Graphical Abstract
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