Synthesis and evaluation of N-acylamino acids derivatives of triazenes. Activation by tyrosinase in human melanoma cell lines
作者:Ana Sofia Monteiro、Joana Almeida、Guadalupe Cabral、Paulo Severino、Paula A. Videira、Ana Sousa、Rafael Nunes、João D. Pereira、Ana Paula Francisco、M. Jesus Perry、Eduarda Mendes
DOI:10.1016/j.ejmech.2013.09.040
日期:2013.12
In this research work we report the synthesis of a new series of triazene prodrugs designed for Melanocyte-Directed Enzyme Prodrug Therapy (MDEPT). These compounds are derived from the N-acyltyrosine amino acid a good enzyme substrate for the tyrosinase enzyme, which is significantly overexpressed in melanoma cells. We analysed their chemical stability and plasma enzymatic hydrolysis, and we also evaluated the release of the antitumoral drug in the presence of the tyrosinase. Subsequently, we performed the evaluation of the prodrug cytotoxicity in melanoma cell lines with different levels of tyrosinase activity. Prodrug 5c showed the highest cytotoxicity against melanoma cell lines, and this effect correlated well with the tyrosinase activity suggesting that prodrug cytotoxicity is tyrosinase-dependent. (C) 2013 Elsevier Masson SAS. All rights reserved.