Abstract

Mei Danyu, Gao Huile, Gong Wei, Pang Zhiqing, Jiang Xinguo* and Chen Jun

The low-density lipoprotein receptor-related protein (LRP) was highly expressed in blood brain barrier and glioma cells. Angiopep-2 was a new and effective ligand of LRP. Herein, we present a novel brain targeting delivery system: doxorubicin (DOX) loaded angiopep-2 modified liposome (AL). The particle size of AL was 102 nm and the zeta potential was -9.8 mV, which was stable and suitable for brain targeting delivery. In the anti glioma study, AL group had the smallest average tumor volume, the strongest tumor apoptosis, gain more weight after treatment and longer median survival time than that of other groups. This proved that Angiopep- 2 modified doxorubicin liposomes had certain glioma targeting therapeutic effects and lower toxicity