期刊
COLLOIDS AND SURFACES B-BIOINTERFACES
卷 120, 期 -, 页码 168-175出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfb.2014.04.013
关键词
Paclitaxel; PEG; Transferrin; Polymeric prodrugs
资金
- National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology [NRF-2012R1A2A2A01014898]
A novel polymeric prodrug (PXPEG) was prepared to enhance the solubility of an anti-cancer drug, paclitaxel, in aqueous solutions and decrease the cytotoxicity by PEGylation, which means PEG attached to another molecule. In addition, the targeting ligand, transferrin (TF), was modified to PXPEG to enhance the therapeutic efficacy. The targeting ligand-modified PXPEG (TFPXPEG) was examined by H-1-NMR to confirm the successful synthesis. The synthesized TFPXPEG had better solubility than the free drug against aqueous solution. The particle size of TFPXPEG was approximately 197.2 nm and it had a spherical shape. The MTT assay showed that the anti-tumor efficiency of TFPXPEG was better than that of TF-unmodified PXPEG. In the KB tumor-bearing mouse model, the tumor volume of TFPXPEG treated groups was decreased dramatically by more than 2 fold or 3 fold compared to the PBS or PXPEG treated groups. The in vitro and in vivo evaluation showed that TFPXPEG had better efficacy than that of PXPEG due to the targeting effect of targeting ligands, such as TF. (C) 2014 Elsevier B.V. All rights reserved.
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