Theranostics 2016; 6(1):40-53. doi:10.7150/thno.13250 This issue
1. State Key Laboratory of Urban Water Resources and Environment, School of Life Science and Technology, Harbin Institute of Technology, Harbin 150080, China
2. Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China.
3. Alkali Soil Natural Environmental Science Center, Northeast Forestry University; Key Laboratory of Saline-alkali Vegetation Ecology Restoration in Oil Field, Ministry Education, Harbin, 150040, China
This paper reported the fabrication of a multifunctional nanoplatform by modifying hollow Prussian blue nanoparticles with hyaluronic acid grafting polyethylene glycol, followed by loading 10-hydroxycamptothecin for tumor-targeted thermochemotherapy. It was found that the surface modification of hollow Prussian blue nanoparticles with hyaluronic acid grafting polyethylene endowed a great colloidal stability, long blood circulation time and the capability for targeting Hela cells over-expressing the CD44 receptor. The obtained nanoagent exhibited efficient photothermal effect and a light triggered and stepwise release behavior of 10-hydroxycamptothecin due to the strong optical absorption in the near-infrared region. The investigations on the body weight change, histological injury and blood biochemical indexes showed that such nanoagent had excellent biocompatibility for medical application. Both in vitro and in vivo experiments proved that the combination of chemotherapy and photothermal therapy through the agent of hyaluronic acid modified Prussian blue nanoparticles loading 10-hydroxycamptothecin could significantly improve the therapeutic efficacy compared with either therapy alone because of a good synergetic effect.
Keywords: Prussian blue, Hyaluronic acid, 10-hydroxycamptothecin, Chemotherapy, Photothermal therapy