PuraMatrix hydrogel enhances the expression of motor neuron progenitor marker and improves adhesion and proliferation of motor neuron-like cells

Document Type : Original Article


1 Department of Anatomy, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran

2 Shefa Neuroscience Research Center, Khatam Alanbia Hospital, Tehran, Iran

3 Department of Anatomy & Cell Biology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran

4 Immunogenetic Research Center, Department of Anatomy & Cell Biology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran

5 Neuroscience Research Center, Mashhad University of Medical Sciences, Mashhad, Iran

6 Department of Anatomical Sciences, Faculty of Medical Sciences, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran

7 Department of Physiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran

8 Department of Brain and Cognitive Sciences, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran


Objective(s): Cell therapy has provided clinical applications to the treatment of motor neuron diseases. The current obstacle in stem cell therapy is to direct differentiation of stem cells into neurons in the neurodegenerative disorders. Biomaterial scaffolds can improve cell differentiation and are widely used in translational medicine and tissue engineering. The aim of this study was to compare the efficiency of two-dimensional with a three-dimensional culture system in their ability to generate functional motor neuron-like cells from adipose-derived stem cells.
Materials and Methods: We compared motor neuron-like cells derived from rat adipose tissue in differentiation, adhesion, proliferation, and functional properties on two-dimensional with three-dimensional culture systems. Neural differentiation was analyzed by immunocytochemistry for immature (Islet1) and mature (HB9, ChAT, and synaptophysin) motor neuron markers.
Results: Our results indicated that the three-dimensional environment exhibited an increase in the number of Islet1. In contrast, two-dimensional culture system resulted in more homeobox gene (HB9), Choline Acetyltransferase (ChAT), and synaptophysin positive cells. The results of this investigation showed that proliferation and adhesion of motor neuron-like cells significantly increased in three-dimensional compared with two-dimensional environments.
Conclusion: The findings of this study suggested that three-dimension may create a proliferative niche for motor neuron-like cells. Overall, this study strengthens the idea that three-dimensional culture may mimic neural stem cell environment for neural tissue regeneration.


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