The abnormal cytotoxicities of 2,5-diaziridinyl-1,4-benzoquinone-3-phenyl esters.

Di Francesco, M. Angela, Robert H. J. Hargreaves, Timothy Wallace, Stephen P. Mayalarp, Ali Hazrati, John A. Hartley, John Butler

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Several derivs. of 2,5-diaziridinyl-3-phenyl-1,4-benzoquinone have been synthesized and their cytotoxicities in six different human cancer cell lines (H460, H596, HT29, BE, K562 and A2780) have been detd. It was obsd. that certain phenol-ester derivs. were significantly more cytotoxic in all of the cell lines investigated. These esters were shown to be cleaved by esterases to form a stable meta-phenol and an unstable para-phenol. The meta-phenol was also highly cytotoxic. Several of these compds. were studied in detail using DNA crosslinking, clonogenic, apoptosis and flow cytometry assays. It is proposed that although the phenol-esters and the phenols can efficiently cross-link DNA, this mechanism alone is not sufficient to explain the toxicities of these compds.
    Original languageEnglish
    Pages (from-to)347-359
    Number of pages12
    JournalAnti-Cancer Drug Design
    Volume15
    Issue number5
    Publication statusPublished - 2001

    Keywords

    • Structure-activity relationship (DNA-crosslinking; diaziridinyl benzoquinone Ph esters: prepn. and abnormal cytotoxicity); DNA Role: BPR (Biological process), BSU (Biological study, unclassified), BIOL (Biological study), PROC (Process) (crosslinked; diaziridinyl benzoquinone Ph esters: prepn. and abnormal cytotoxicity); Antitumor agents; Apoptosis; Cytotoxic agents (diaziridinyl benzoquinone Ph esters: prepn. and abnormal cytotoxicity)

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