Chem. J. Chinese Universities ›› 2016, Vol. 37 ›› Issue (4): 661.doi: 10.7503/cjcu20150941

• Organic Chemistry • Previous Articles     Next Articles

Synthesis and Antitumor Activity of Targeting and Nano Drug-Carrying Micelles Mediated by Rabies-virus-derived Peptide RVG29

HAN Hailing1,2, JIN Shunzi1, MIAO Zhuang3, CHEN Ping3, WANG Zhanfeng3, XIE Zhigang4   

  1. 1. Ministry of Health Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun 130021, China;
    2. Department of Cardiac, Affiliated Hospital of Beihua University, Jilin 132011, China;
    3. Department of Neurosurgery, China Japan Union Hospital, Jilin University, Changchun 130033, China;
    4. State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Changchun 130022, China
  • Received:2015-12-09 Online:2016-04-10 Published:2016-03-04
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.20904002), the Program for New Century Excellent Talents in University of Ministry of Education of China(No.NCET-10-0171), the Young Scholars Programs of Science and Technology Commission Foundation of Jilin Province, China(No. 20130522020JH), the Programs of Educational Commission of Jilin Province of China During the 12th Five-Year Plan Period(No.2013107027) and the High-Technology Research and Development Programs of Jilin Province of China(No.JF2012C005-2).

Abstract:

Starting with water soluble dextran(Dex), paclitaxel(PTX)-carrying micelles M(PTX) and Rabies-virus-derived peptide(RVG29)-targeted and PTX-carrying micelles M(RVG,PTX) were prepared, by carboxylation of dextran and subsequently by conjugating PTX and RVG29 onto the carboxylated dextran. The products were characterized with nuclear magnetic resonance(1H NMR) spectroscopy, transmission electron microscopy(TEM), and dynamic light scattering(DLS). The uptakes of the micelles by C6 cells and the inhibition rates of C6 cell growth by the micelles were measured by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide(MTT) assay, by confocal laser scanning microscopy(CLSM), and by flow cytometry(FCM). The results showed that molecular weight of Dex-PTX was about 16500 and that of RVG-Dex-PTX was about 19800. Micelles M(PTX) and M(RVG, PTX) assumed a shape of spheres with a diameter of 45-60 nm. The mass ratio of Dex, PTX and RVG29 was about 100: 20: 10. M(RVG, PTX) exhibited higher cell growth inhibition rate against C6 cells than M(PTX) and C6 cells took in more M(RVG,PTX) than M(PTX) under the same experimental conditions. When C6 cells were treated with free RVG29 prior to cellular experiments, the inhibition rate against C6 cells and the uptake by C6 cells of M(RVG,PTX) were significantly decreased and came to a level of M(PTX). This implied that the enhanced inhibition of C6 cell growth by M(RVG,PTX) and the enhanced uptake of M(RVG,PTX) by C6 cells were mediated by RVG29, and the RVG29 species after conjugation with Dex reserved the targeting ability of RVG29 itself to a reasonable extent. Furthermore, in the preparation of M(RVG, PTX) micelles, only Dex was used as a carrier polymer, no hydrophobic polymer segments were involvd and there was no need of preparing drug-carrying copolymers and targeting copolymers, separately, and then doing co-assembling of them. In short, the manufacturing of M(RVG,PTX) micelles is relatively simple but they have the functions of drug-carrying and C6-cell targeting, therefore, their practical application is expected.

Key words: Rabies-virus-derived peptide, Glioma, Tumor targeting, Paclitaxel, Nano drug-carrying micelle

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