Dehua Yang1, Ting Li, Minghan Xu, Feng Gao, Juan Yang, Zhi Yang, Weidong Le. 1. Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences & School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China. wdle@sibs.ac.cn.
Abstract
AIM: Nanoparticles are easier to pass through cell membranes, and they are considered to be the ideal biocompatible and mechanically stable platforms for supporting stem cell growth and differentiation. The aim of this study is to determine the effects of carbon nanotubes (CNTs), graphene oxide (GO) and graphene (GR) on the dopamine neural differentiation of mouse embryonic stem cells (ESCs). MATERIALS & METHODS: GO was prepared according to a modified Hummers method. GR was synthesized by reduction of GO via L-ascorbic acid as a reductant in an aqueous solution at room temperature. CNTs were fabricated by chemical vapor deposition method. ESCs were differentiated by a stromal cell-derived inducing activity (SDIA) method after 10 days coculture with PA6 cells. The dopamine neural differentiation of the ESCs-GFP was examined by immunocytochemistry and real-time PCR. RESULTS: We found that only GO could effectively promote dopamine neuron differentiation after induction of SDIA and further enhance dopamine neuron-related gene expression compared with cells treated with no nanoparticle control, and the other two nanoparticles (CNTs and GR). CONCLUSION: These findings suggest that GO is a promising nanomaterial-based technical platform to effectively enhance dopamine neural differentiation of ESCs, which can be potentially applied for cell transplantation therapy.
AIM: Nanoparticles are easier to pass through cell membranes, and they are considered to be the ideal biocompatible and mechanically stable platforms for supporting stem cell growth and differentiation. The aim of this study is to determine the effects of carbon nanotubes (CNTs), graphene oxide (GO) and graphene (GR) on the dopamine neural differentiation of mouse embryonic stem cells (ESCs). MATERIALS & METHODS:GO was prepared according to a modified Hummers method. GR was synthesized by reduction of GO via L-ascorbic acid as a reductant in an aqueous solution at room temperature. CNTs were fabricated by chemical vapor deposition method. ESCs were differentiated by a stromal cell-derived inducing activity (SDIA) method after 10 days coculture with PA6 cells. The dopamine neural differentiation of the ESCs-GFP was examined by immunocytochemistry and real-time PCR. RESULTS: We found that only GO could effectively promote dopamine neuron differentiation after induction of SDIA and further enhance dopamine neuron-related gene expression compared with cells treated with no nanoparticle control, and the other two nanoparticles (CNTs and GR). CONCLUSION: These findings suggest that GO is a promising nanomaterial-based technical platform to effectively enhance dopamine neural differentiation of ESCs, which can be potentially applied for cell transplantation therapy.
Authors: Su Ryon Shin; Yi-Chen Li; Hae Lin Jang; Parastoo Khoshakhlagh; Mohsen Akbari; Amir Nasajpour; Yu Shrike Zhang; Ali Tamayol; Ali Khademhosseini Journal: Adv Drug Deliv Rev Date: 2016-03-29 Impact factor: 15.470
Authors: Marco Fiorillo; Andrea F Verre; Maria Iliut; Maria Peiris-Pagés; Bela Ozsvari; Ricardo Gandara; Anna Rita Cappello; Federica Sotgia; Aravind Vijayaraghavan; Michael P Lisanti Journal: Oncotarget Date: 2015-02-28