OBJECTIVES: Graphene oxide (GO), the derivative of graphene with unique properties, has attracted much attention for applications in dental implants. The aim of this study was, by two biomimetic cell culture methods, to investigate the quantitative relationship between the concentration of pristine GO nanosheets and their cellular behaviours towards bone marrow-derived mesenchymal stem cells (BMSCs). MATERIALS AND METHODS: The cells were firstly characterized according to their morphology, self-renewal capabilities and multipotency. Subsequently, adhesion density, proliferation, alkaline phosphatase activity and mineralization of BMSCs treated with various concentrations of GO were analysed. In addition, osteogenic-related proteins were measured for further verification of the GO-induced osteogenic differentiation. RESULTS: Pristine GO nanosheets inhibited the proliferation of BMSCs at a high concentration of 10 μg/mL during the first 3 days with two seeding methods and facilitated proliferation of BMSCs at a low concentration of 0.1 μg/mL after 5 days with a sequential-seeding method compared to a co-seeding method. Analogously, osteogenic differentiation was promoted when BMSCs were treated with 0.1 μg/mL of GO. Both the proliferation and differentiation showed concentration-dependent behaviour. Interestingly, Wnt/β-catenin signalling pathway appeared to be involved in osteogenic differentiation induced by pristine GO nanosheets. CONCLUSIONS: Pristine GO nanosheets at a concentration of 0.1 μg/mL provide benefits to promote BMSCs proliferation and osteogenesis under a sequential-seeding method, contributing to the use of GO for dental implantation.
OBJECTIVES:Graphene oxide (GO), the derivative of graphene with unique properties, has attracted much attention for applications in dental implants. The aim of this study was, by two biomimetic cell culture methods, to investigate the quantitative relationship between the concentration of pristine GO nanosheets and their cellular behaviours towards bone marrow-derived mesenchymal stem cells (BMSCs). MATERIALS AND METHODS: The cells were firstly characterized according to their morphology, self-renewal capabilities and multipotency. Subsequently, adhesion density, proliferation, alkaline phosphatase activity and mineralization of BMSCs treated with various concentrations of GO were analysed. In addition, osteogenic-related proteins were measured for further verification of the GO-induced osteogenic differentiation. RESULTS: Pristine GO nanosheets inhibited the proliferation of BMSCs at a high concentration of 10 μg/mL during the first 3 days with two seeding methods and facilitated proliferation of BMSCs at a low concentration of 0.1 μg/mL after 5 days with a sequential-seeding method compared to a co-seeding method. Analogously, osteogenic differentiation was promoted when BMSCs were treated with 0.1 μg/mL of GO. Both the proliferation and differentiation showed concentration-dependent behaviour. Interestingly, Wnt/β-catenin signalling pathway appeared to be involved in osteogenic differentiation induced by pristine GO nanosheets. CONCLUSIONS: Pristine GO nanosheets at a concentration of 0.1 μg/mL provide benefits to promote BMSCs proliferation and osteogenesis under a sequential-seeding method, contributing to the use of GO for dental implantation.
Authors: Ji Youn Lee; Nazgul Tuleuova; Caroline N Jones; Erlan Ramanculov; Mark A Zern; Alexander Revzin Journal: Integr Biol (Camb) Date: 2009-06-12 Impact factor: 2.192
Authors: M F Pittenger; A M Mackay; S C Beck; R K Jaiswal; R Douglas; J D Mosca; M A Moorman; D W Simonetti; S Craig; D R Marshak Journal: Science Date: 1999-04-02 Impact factor: 47.728
Authors: Tais Monteiro Magne; Thamires de Oliveira Vieira; Luciana Magalhães Rebelo Alencar; Francisco Franciné Maia Junior; Sara Gemini-Piperni; Samuel V Carneiro; Lillian M U D Fechine; Rafael M Freire; Kirill Golokhvast; Pierangelo Metrangolo; Pierre B A Fechine; Ralph Santos-Oliveira Journal: J Nanostructure Chem Date: 2021-09-06
Authors: Rabia Ikram; Shamsul Azlin Ahmad Shamsuddin; Badrul Mohamed Jan; Muhammad Abdul Qadir; George Kenanakis; Minas M Stylianakis; Spiros H Anastasiadis Journal: Molecules Date: 2022-01-07 Impact factor: 4.411