Probing cytochrome P450 bioactivation and fluorescent properties with morpholinyl-tethered anthraquinones
作者:Rachel J. Errington、Maria Sadiq、Laura Cosentino、Marie Wiltshire、Omair Sadiq、Marcella Sini、Enric Lizano、Maria D. Pujol、Goreti R. Morais、Klaus Pors
DOI:10.1016/j.bmcl.2018.03.040
日期:2018.5
Structural features from the anticancer prodrug nemorubicin (MMDX) and the DNA-binding molecule DRAQ5(TM) were used to prepare anthraquinone-based compounds, which were assessed for their potential to interrogate cytochrome P450 (CYP) functional activity and localisation. 1,4-disubstituted anthraquinone 8 was shown to be 5-fold more potent in EJ138 bladder cancer cells after CYP1A2 bioactivation. In contrast, 1,5-bis((2-morpholinoethyl)amino) substituted anthraquinone 10 was not CYP-bioactivated but was shown to be fluorescent and subsequently photo-activated by a light pulse (at a bandwidth 532-587 nm), resulting in punctuated foci accumulation in the cytoplasm. It also showed low toxicity in human osteosarcoma cells. These combined properties provide an interesting prospective approach for opto-tagging single or a sub-population of cells and seeking their location without the need for continuous monitoring. Crown Copyright (C) 2018 Published by Elsevier Ltd. All rights reserved.