RT Journal Article T1 MC3T3-E1 pre-osteoblast response and differentiation after graphene oxide nanosheet uptake A1 Cicuéndez Maroto, Mónica A1 Silva, V.S. A1 Hortigüela, M.J. A1 Matesanz, M.C. A1 Vila Gonzalo, María A1 Portolés Pérez, María Teresa AB Nano-graphene oxide (GO) and its functionalized derivatives have aroused a great interest for drug delivery, tissue engineering and photothermal cancer therapy, but their biocompatibility has not yet been fully assessed. The aim of the present study was to evaluate the proliferation and differentiation of MC3T3-E1 pre-osteoblasts after the uptake of GO nanosheets (c.a. 400nm), functionalized with poly(ethylene glycol-amine) (PEG) and labelled with fluorescein isothiocyanate (FITC). Significant proliferation decrease and apoptosis increase were observed 3days after incorporation of FITC-PEG-GO by MC3T3-E1 cells. However, alterations on healthy pre-osteoblast differentiation into cells exhibiting osteoblast phenotype were not observed, as they showed normal alkaline phosphatase levels and matrix mineralization 12days after nanosheet uptake. The results suggest that 40μg/mL concentrations of these nanosheets would not affect the differentiation of healthy pre-osteoblasts, thus these PEG-GO nanosheets have potential to be used for biomedical applications after their internalization, as the induction of local hyperthermia on bone cancer. PB Elsevier YR 2017 FD 2017 LK https://hdl.handle.net/20.500.14352/96524 UL https://hdl.handle.net/20.500.14352/96524 LA eng NO Cicuéndez M, Silva VS, Hortigüela MJ, Matesanz MC, Vila M, Portolés MT. MC3T3-E1 pre-osteoblast response and differentiation after graphene oxide nanosheet uptake. Colloids Surf B Biointerfaces. 2017 Oct 1;158:33-40. doi: 10.1016/j.colsurfb.2017.06.019. Epub 2017 Jun 20. PMID: 28662392. NO Spanish Ministerio de Economía y Competitividad DS Docta Complutense RD 23 abr 2025