Multifunctional nano-graphene based nanocomposites for multimodal imaging guided combined radioisotope therapy and chemotherapy

被引:0
作者
Qian, Rui [1 ,2 ]
Maiti, Debabrata [1 ,2 ]
Zhong, Jing [1 ,2 ]
Xiong, SaiSai [1 ,2 ]
Zhou, Hailin [1 ,2 ]
Zhu, Ran [1 ,2 ]
Wan, Jianmei [1 ,2 ]
Yang, Kai [1 ,2 ]
机构
[1] Soochow Univ, State Key Lab Radiat Med & Protect, Sch Radiat Med & Protect, Suzhou 215123, Jiangsu, Peoples R China
[2] Soochow Univ, Sch Radiol & Interdisciplinary Sci RAD X, Collaborat Innovat Ctr Radiat Med, Jiangsu Higher Educ Inst, Suzhou 215123, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
PHOTOTHERMAL THERAPY; OXIDE NANOPARTICLES; CANCER; RADIOTHERAPY; CHEMISTRY; HYPOXIA; AGENTS;
D O I
10.1016/j.carbon.2019.04.046
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Multimodal imaging using nanomaterials in a single platform will bring hopeful for patients, and provide exact information including the tumor location and size for doctors. Herein, we synthesize reduced graphene oxide-manganese ferrite (RGO-MnFe2O4) nanocomposites via a hydrothermal reaction, and modify nanocomposites with polyethylene glycol (PEG) to improve its biocompatibility. Interestingly, PEGylated RGO-MnFe2O4 nanocomposites possess excellent T1/T2 weighted magnetic resonance imaging (MRI) of mice bearing 4T1 tumor after intravenous (i.v.) injection. After additional radioisotope labeling, SPECT imaging of I-125 labeled RGO-MnFe2O4-PEG nanocomposites exhibit high tumor accumulation. Under the guidance of MRI/SPECT imaging, in vivo combined radioisotope therapy (RIT) and chemotherapy is carried out using anticancer drug doxorubicin and I-131 co-loaded RGO-MnFe2O4-PEG nanocomposites, significant inhibiting the tumor growth after intravenous injection. Moreover, I-131-RGO- MnFe2O4-PEG/DOX nanocomposites cause no obvious toxicity to treated mice after 60 days post injection. Our study further promote the biomedical applications of nano-graphene based nanocomposites. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码:55 / 62
页数:8
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