The Effect of Liquid-Phase Exfoliated Graphene Film on Neurodifferentiation of Stem Cells from Apical Papilla.

Autor:	Simonovic J; School of Dental Medicine, University of Belgrade, 11000 Belgrade, Serbia., Toljic B; School of Dental Medicine, University of Belgrade, 11000 Belgrade, Serbia., Lazarevic M; School of Dental Medicine, University of Belgrade, 11000 Belgrade, Serbia., Markovic MM; School of Dental Medicine, University of Belgrade, 11000 Belgrade, Serbia., Peric M; Center for Laser Microscopy, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia., Vujin J; Graphene Laboratory, Center for Solid State Physics and New Materials, Institute of Physics, University of Belgrade, 11000 Belgrade, Serbia., Panajotovic R; Graphene Laboratory, Center for Solid State Physics and New Materials, Institute of Physics, University of Belgrade, 11000 Belgrade, Serbia., Milasin J; School of Dental Medicine, University of Belgrade, 11000 Belgrade, Serbia.
Jazyk:	angličtina
Zdroj:	Nanomaterials (Basel, Switzerland) [Nanomaterials (Basel)] 2022 Sep 08; Vol. 12 (18). Date of Electronic Publication: 2022 Sep 08.
DOI:	10.3390/nano12183116
Abstrakt:	Background: Dental stem cells, which originate from the neural crest, due to their easy accessibility might be good candidates in neuro-regenerative procedures, along with graphene-based nanomaterials shown to promote neurogenesis in vitro . We aimed to explore the potential of liquid-phase exfoliated graphene (LPEG) film to stimulate the neuro-differentiation of stem cells from apical papilla (SCAP). Methods: The experimental procedure was structured as follows: (1) fabrication of graphene film; (2) isolation, cultivation and SCAP stemness characterization by flowcytometry, multilineage differentiation (osteo, chondro and adipo) and quantitative PCR (qPCR); (3) SCAP neuro-induction by cultivation on polyethylene terephthalate (PET) coated with graphene film; (4) evaluation of neural differentiation by means of several microscopy techniques (light, confocal, atomic force and scanning electron microscopy), followed by neural marker gene expression analysis using qPCR. Results: SCAP demonstrated exceptional stemness, as judged by mesenchymal markers' expression (CD73, CD90 and CD105), and by multilineage differentiation capacity (osteo, chondro and adipo-differentiation). Neuro-induction of SCAP grown on PET coated with graphene film resulted in neuron-like cellular phenotype observed under different microscopes. This was corroborated by the high gene expression of all examined key neuronal markers (Ngn2, NF-M, Nestin, MAP2, MASH1). Conclusions: The ability of SCAPs to differentiate toward neural lineages was markedly enhanced by graphene film.
Databáze:	MEDLINE
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