Antitumor activity of the tea polyphenol epigallocatechin-3-gallate encapsulated in targeted vesicles after intravenous administration

Lemarié, Fanny and Chang, Chun Wai and Blatchford, David and Amor, Rumelo and Norris, Greg and Tetley, Laurence and McConnell, Gail and Dufès, Christine (2013) Antitumor activity of the tea polyphenol epigallocatechin-3-gallate encapsulated in targeted vesicles after intravenous administration. Nanomedicine, 8 (2). pp. 181-192. ISSN 1743-5889 (https://doi.org/10.2217/NNM.12.83)

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Abstract

The therapeutic potential of epigallocatechin gallate, a green tea polyphenol with anti-cancer properties, is limited by its inability to specifically reach tumors following intravenous administration. The purpose of this study is to determine whether a tumor-targeted vesicular formulation of epigallocatechin gallate would suppress the growth of A431 epidermoid carcinoma and B16-F10 melanoma in vitro and in vivo. Transferrin-bearing vesicles encapsulating epigallocatechin gallate were intravenously administered to mice bearing subcutaneous A431 and B16-F10 tumors. The intravenous administration of epigallocatechin gallate encapsulated in transferrin-bearing vesicles resulted in tumor suppression for 40% of A431 and B16-F10 tumors. Animal survival was improved by more than 20 days compared to controls. Encapsulation of epigallocatechin gallate in transferrin-bearing vesicles is a promising therapeutic strategy.