期刊
JOURNAL OF CONTROLLED RELEASE
卷 246, 期 -, 页码 79-87出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jconrel.2016.12.014
关键词
Tocotrienol; Transferrin; Tumor targeting; Delivery system; Cancer therapy
资金
- University of Strathclyde
- Wellcome Trust [ME0442]
The therapeutic potential of tocotrienol, a member of the vitamin E family of compounds with potent in vitro anticancer properties, is limited by its inability to specifically reach tumors following intravenous administration. The purpose of this study is to determine whether a novel tumor-targeted vesicular formulation of tocotrienol would suppress the growth of A431 epidermoid carcinoma and B16-F10 melanoma in vitro and in vivo. In this work, we demonstrated that novel transferrin-bearing multilamellar vesicles entrapping alpha-T3 resulted in a dramatically improved (by at least 52-fold) therapeutic efficacy in vitro on A431 cell line, compared to the free drug. In addition, the intravenous administration of tocotrienol entrapped in transferrin-bearing vesicles resulted in tumor suppression for 30% of A431 and 60% of B16-F10 tumors, without visible toxicity. Mouse survival was enhanced by >13 days compared to controls administered with the drug solution only. This tumor-targeted, tocotrienol-based nanomedicine therefore significantly improved the therapeutic response in cancer treatment. (C) 2016 Elsevier B.V. All rights reserved.
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