Chinese Journal of Applied Chemistry ›› 2021, Vol. 38 ›› Issue (6): 693-703.DOI: 10.19894/j.issn.1000-0518.200302

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Preparation of Graphene Nano-Drug Carrier System and Its Killing Effect on Tumor Cells

ZHANG Ya-Jing1, WANG Xiao-Hui3, XU Ya-Juan4, LIU Wen-Shu2*, ZHAO Li-Hui1*   

  1. 1College of Life Science and Technology, Changchun University of Science and Technology, Changchun 130022, China
    2Department of Stomatology, the First Clinical Hospital of Jilin University, Changchun 130012, China
    3Chemical Biology Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
    4Oral and Maxillofacial Surgery, Jilin Cancer Hospital, Changchun 130012, China
  • Received:2020-10-06 Revised:2020-12-16 Published:2021-06-01 Online:2021-08-01
  • Supported by:
    Science and Technology Department of Jilin Province (No.JJKH20170604KJ)

Abstract: In this study, a nano-graphene oxide (NGO) was modified by polyethylene glycol (PEG) and branched polyethyleneimine (bPEI) as a drug loading platform of macromolecular drugs, which increases the water solubility of NGO and the adsorption of proteins. Then, tumor patient serum was prepared by loading anti-cancer drug cis-diamminedichloroplatinum (CDDP) and low-temperature ethanol, respectively, to form the graphene nanoparticle drug delivery system. The ultraviolet-visible and Fourier transform infraredspectroscopy characterization results demonstrate that the NGO-PEG-bPEI-CDDP drug loading system is successfully prepared, and the drug loading rate of NGO-PEG-bPEI to CDDP is 34.6%. Polyacrylamide gel electrophoresis (SDS-PAGE) demonstrates strong adsorption of specific antibody proteins in the NGO-PEG-bPEI-CDDP-Antibody macromolecular nano-loading system, and the nanocomposite can be specifically enriched in tumors. Cell sites are extremely sensitive to the recognition of CNE-1 cell lines. Cytotoxicity test (MTT) results demonstrate that the drug delivery system of NGO-PEG-bPEI-CDDP-Antibody macromolecular nano graphene can kill KB and CNE-1 cells and avoid additional damage to normal cells at the same concentration and time. The NGO-PEG-bPEI-CDDP-Antibody nano drug-loading system can not only enrich the drug in the lesion area through specific recognition, reduce normal cell damage, but also effectively kill cancer cells and reduce the dose of chemotherapy drugs, which is a very promising macromolecular nano-drug loading system.

Key words: Nano-graphene oxide, Macromolecular drug loading system, Tumor-specific antibody, Tumor enrichment

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