Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Formation of Three-Dimensional Spheres Enhances the Neurogenic Potential of Stem Cells from Apical Papilla

Version 1 : Received: 31 July 2022 / Approved: 5 August 2022 / Online: 5 August 2022 (09:59:07 CEST)

How to cite: Basabrain, M.; Zhong, J.; Luo, H.; Liu, J.; Yi, B.; Zaeneldin, A.; Koh, J.; Zou, T.; Zhang, C. Formation of Three-Dimensional Spheres Enhances the Neurogenic Potential of Stem Cells from Apical Papilla. Preprints 2022, 2022080122. https://doi.org/10.20944/preprints202208.0122.v1 Basabrain, M.; Zhong, J.; Luo, H.; Liu, J.; Yi, B.; Zaeneldin, A.; Koh, J.; Zou, T.; Zhang, C. Formation of Three-Dimensional Spheres Enhances the Neurogenic Potential of Stem Cells from Apical Papilla. Preprints 2022, 2022080122. https://doi.org/10.20944/preprints202208.0122.v1

Abstract

Abstract: Cell-based neural regeneration is challenging due to the difficulty in obtaining sufficient neural stem cells with clinical applicability. SCAPs originating from embryonic neural crest with high neurogenic potential could be a promising cell source for neural regeneration. This study aimed to investigate whether the formation of 3D spheres can promote SCAPs neurogenic potential. Material and methods: 3D SCAPs spheres were first generated in 256-well agarose microtissue mold. The spheres and single cells were individually cultured on collagen I coated μ-Slide for 4 and 7 days. Cell morphological changes, neural marker expression, and neurite outgrowth were evaluated under a confocal microscope. Secretion of BDNF and NGF-β was measured by ELISA kits. Results: Pronounced morphological changes were noticed in a time-dependent manner. The migrating cells’ morphology changed from fibroblast-like cells to neuron-like cells. Compared to the 2D culture, neurite length, number, and the expression of neural markers, including Nestin, β-tubulin III, NeuN, and MAP-2 were significantly increased in the 3D spheres, while the secretion of BDNF and NGF-β was markedly downregulated at day 7. Conclusion: The formation of 3D spheres enhanced the neurogenic potential of SCAPs, suggesting the advantage of using the 3D spheres of SCAPs for the treatment of neural diseases.

Keywords

neurogenic potential; neurites; SCAPs; sphere; stem cells

Subject

Biology and Life Sciences, Cell and Developmental Biology

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