Impact of Graphene-Based Surfaces on the Basic Biological Properties of Human Umbilical Cord Mesenchymal Stem Cells: Implications for Ex Vivo Cell Expansion Aimed at Tissue Repair

International Journal of Molecular Sciences

EwaK. Zuba-Surma¹  Edyta Adamczyk¹  Zbigniew Madeja¹  Monika Dźwigońska¹  Magdalena Kurcz²  Magdalena Winkowska-Struzik²  Katarzyna Kurp²  Ludwika Lipińska²  Joanna Jagiełło²  Sylwia Noga³  Elżbieta Karnas³  Małgorzata Sekuła-Stryjewska³  Dariusz Boruczkowski⁴ 

[1] Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland;Department of Chemical Synthesis and Flake Graphene, Łukasiewicz Research Network - Institute of Electronic Materials Technology, 01-919 Warsaw, Poland;Malopolska Centre of Biotechnology, Jagiellonian University, 30-387 Krakow, Poland;Polish Stem Cell Bank, 00-867 Warsaw, Poland;

关键词: graphene oxide;    reduced graphene oxide;    human umbilical cord mesenchymal stem/stromal cells;    tissue engineering;    regeneration;    imaging;   

DOI  :  10.3390/ijms20184561

来源: DOAJ

【 摘 要 】

The potential therapeutic applications of mesenchymal stem/stromal cells (MSCs) and biomaterials have attracted a great amount of interest in the field of biomedical engineering. MSCs are multipotent adult stem cells characterized as cells with specific features, e.g., high differentiation potential, low immunogenicity, immunomodulatory properties, and efficient in vitro expansion ability. Human umbilical cord Wharton’s jelly-derived MSCs (hUC-MSCs) are a new, important cell type that may be used for therapeutic purposes, i.e., for autologous and allogeneic transplantations. To improve the therapeutic efficiency of hUC-MSCs, novel biomaterials have been considered for use as scaffolds dedicated to the propagation and differentiation of these cells. Nowadays, some of the most promising materials for tissue engineering include graphene and its derivatives such as graphene oxide (GO) and reduced graphene oxide (rGO). Due to their physicochemical properties, they can be easily modified with biomolecules, which enable their interaction with different types of cells, including MSCs. In this study, we demonstrate the impact of graphene-based substrates (GO, rGO) on the biological properties of hUC-MSCs. The size of the GO flakes and the reduction level of GO have been considered as important factors determining the most favorable surface for hUC-MSCs growth. The obtained results revealed that GO and rGO are suitable scaffolds for hUC-MSCs. hUC-MSCs cultured on: (i) a thin layer of GO and (ii) an rGO surface with a low reduction level demonstrated a viability and proliferation rate comparable to those estimated under standard culture conditions. Interestingly, cell culture on a highly reduced GO substrate resulted in a decreased hUC-MSCs proliferation rate and induced cell apoptosis. Moreover, our analysis demonstrated that hUC-MSCs cultured on all the tested GO and rGO scaffolds showed no alterations of their typical mesenchymal phenotype, regardless of the reduction level and size of the GO flakes. Thus, GO scaffolds and rGO scaffolds with a low reduction level exhibit potential applicability as novel, safe, and biocompatible materials for utilization in regenerative medicine.

【 授权许可】

Unknown