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Journal of Chinese Pharmaceutical Sciences ›› 2019, Vol. 28 ›› Issue (9): 627-640.DOI: 10.5246/jcps.2019.09.060

• Original articles • Previous Articles     Next Articles

Combination therapy of cRGD-DOX self-assembled nanoparticles and bevacizumab for breast cancer

Xueling Wang1, Yanqin Liang1, Yuan Zhang3, Bing He1, Wenbing Dai1, Hua Zhang1, Xueqing Wang1*, Qiang Zhang1,2*   

  1. 1. Beijing Key Laboratory of Molecular Pharmaceutics and Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China  
    2. State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China  
    3. Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA.
  • Received:2019-05-10 Revised:2019-05-27 Online:2019-09-30 Published:2019-06-20
  • Contact: Tel.: +86-10-82802791; +86-10-82805935, E-mail: zqdodo@bjmu.edu.cn; wangxq@bjmu.edu.cn
  • Supported by:

    National Natural Science Foundation of China (Grant No. 81690264), the National Key Research and Development Program of China (Grant No. 2017YFA0205600) and Beijing Natural Science Foundation (Grant No. 7162108).

Abstract:

The interplay among diverse cell populations in the tumor microenvironment contributes to tumor progression. Targeting to different cell populations might result in improved therapeutic effects on malignant tumors. Integrins high express on many kinds of tumor cells, and VEGF has a strong effect on tumor angiogenesis. Therefore, based on tumor cells and angiogenesis, we fabricated integrin-targeting cRGD-DOX nanoparticles and combined them with the anti-VEGF antibody bevacizumab. We evaluated the antitumor effect of this combination therapy in an integrin-overexpressing MDA-MB-231 tumor model. The cRGD-DOX nanoparticles were effectively uptake by MDA-MB-231 cells and the uptake was related to the expression of integrinin; cRGD-DOX nanoparticles showed less cytotoxic than free DOX; Bevacizumab did not show significant cytotoxicity against MDA-MB-231 cells at concentrations less than 1 mg/mL. The in vivo results showed that bevacizumab could reduce tumor interstitial fluid pressure; the combination of bevacizumab and cRGD-DOX nanoparticles showed enhanced antitumor effects compared with the corresponding single-agent treatments. These findings suggested the combination of angiogenesis antibody and integrin-targeting nanoparticle loaded with a cytotoxic drug was a promising cancer treatment regimen. 

Key words: RGD-DOX, Self-assembled nanoparticles, Bevacizumab, Combination therapy, Breast cancer

CLC Number: 

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