Chemical Research in Chinese Universities ›› 2018, Vol. 34 ›› Issue (6): 1041-1050.doi: 10.1007/s40242-018-8147-5

• Articles • Previous Articles     Next Articles

pH-Responsive Polycarbonate Copolymer-based Nanoparticles for Targeted Anticancer Drug Delivery

LI Yunxia1, DU Wenjuan2, FU Zhiguang1, WANG Huanhuan1, WANG Jiexin3, LE Yuan3, ZHANG Jianjun3, WEN Ning1   

  1. 1. Department of Stomatology, the General Hospital of Chinese PLA, Beijing 100853, P. R. China;
    2. Department of Oncology, the General Hospital of Chinese PLA, Beijing 100853, P. R. China;
    3. College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
  • Received:2018-05-07 Online:2018-12-01 Published:2018-09-29
  • Contact: ZHANG Jianjun, WEN Ning E-mail:wenningchn@163.com;zhangjj@mail.buct.edu.cn
  • Supported by:
    Supported by the National High Technolgy Researeh and Development Program of China(No.2013AA032201), the National Natural Science Foundation of China(Nos.81703003, 51303009, 21476018, 21622601) and the National Key R&D Program of China(No.2015CB932101).

Abstract: A smart polycarbonate(PCA) copolymer-based nanoparticle(NanoPCA) with pH-responsive, long-term stability, and tumor targeting ability was successfully developed by synthesizing and assembling a series of functional PCA-based copolymers including poly(2-amino-1,3-propanediol carbonate-co-L-lactide)[P(CA-co-LA)], poly(2-amino-1,3-propanediol carbonate-co-L-lactide)-g-methoxy-poly(ethylene glycol)[P(CA-co-LA)-g-MPEG], and poly(2-amino-1,3-propanediol carbonate-co-L-lactide)-g-poly(ethylene glycol)-cyclic(Arg-Gly-Asp-D-Phe-Lys)[P(CA-co-LA)-g-PEG-cRGD] for targeted anticancer drug delivery. pH-Responsive studies demonstrated that the loading doxorubicin(DOX) released faster from NanoPCA at acidic conditions due to protonation effects of P(CA-co-LA) copolymers. Furthermore, the in vitro and in vivo investigations demonstrate that the DOX-loaded NanoPCA exhibited significant tumor targeting ability, outstanding antitumor effect and excellent biological safety in the treatment of oral squamous cell carcinoma(OSCC). Therefore, this work provides a promising drug delivery platform for cancer therapy and other applications.

Key words: Polycarbonate copolymer-based nanoparticle(NanoPCA), pH-Responsive, Tumor targeting ability, Oral squamous cell carcinoma(OSCC)