Abstract
In decades, the efficiency of glioma therapy is far from satisfaction due to the inability of most therapeutics to accumulate at the glioblastoma (GBM) site. Therefore, it is urgent to develop novel tumor-targeted delivery systems for more optimized and effective glioma treatment. In this study, hyaluronic acid modified MPEG-PDLLA polymer (HAML) nanoparticles were used to encapsulate the cabazitaxel (Cab), creating Cab loaded HAML nanoparticles (Cab/HAML NPs) for glioma therapy both in vitro and in vivo. MTT assay and apoptotic study indicated Cab/HAML NPs induced a significant cell growth inhibition and more apoptosis of C6 cells than free Cab in vitro. In vivo study showed that Cab/HAML NPs could significantly improve chemotherapeutic effect to C6 tumor-bearing rats compared with free Cab. The median survival rate of Cab/HAML NPs-treated groups (30 days) was remarkably longer than the other groups treated with control (20 days), free Cab (19 days) and Cab/ML NPs (26 days). Immunohistochemical analysis revealed that Cab/HAML NPs improved Cab's anti-tumor effect via improvement of tumor cell apoptosis, inhibition of tumor cell proliferation and a significant decrease in tumor angiogenesis. Together, our study suggested that Cab/HAML NPs might show promise for application to glioma therapy.
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