Anti-Cancer Activity of Phenyl and Pyrid-2-yl 1,3-Substituted Benzo[1,2,4]triazin-7-ones and Stable Free Radical Precursors

Cell viability studies for benzo[1,2,4]triazin-7-ones and 1,2,4-benzotriazinyl (Blatter-type) radical precursors are described with comparisons made with 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO). All of the stable free radicals were several orders of magnitude less cytotoxic than the benzo[1,2,4...

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Main Authors: Lee-Ann J. Keane, Styliana I. Mirallai, Martin Sweeney, Michael P. Carty, Georgia A. Zissimou, Andrey A. Berezin, Panayiotis A. Koutentis, Fawaz Aldabbagh
Format: Article
Language:English
Published: MDPI AG 2018-03-01
Series:Molecules
Subjects:
NCI
Online Access:http://www.mdpi.com/1420-3049/23/3/574
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spelling doaj-36f4cdc6199b44dcbc1b0fac811328212020-11-24T22:43:11ZengMDPI AGMolecules1420-30492018-03-0123357410.3390/molecules23030574molecules23030574Anti-Cancer Activity of Phenyl and Pyrid-2-yl 1,3-Substituted Benzo[1,2,4]triazin-7-ones and Stable Free Radical PrecursorsLee-Ann J. Keane0Styliana I. Mirallai1Martin Sweeney2Michael P. Carty3Georgia A. Zissimou4Andrey A. Berezin5Panayiotis A. Koutentis6Fawaz Aldabbagh7School of Chemistry, National University of Ireland Galway, University Road, H91 TK3 Galway, IrelandSchool of Chemistry, National University of Ireland Galway, University Road, H91 TK3 Galway, IrelandSchool of Chemistry, National University of Ireland Galway, University Road, H91 TK3 Galway, IrelandBiochemistry, School of Natural Sciences, National University of Ireland Galway, University Road, H91 TK33 Galway, IrelandDepartment of Chemistry, University of Cyprus, P.O. Box 20537, Nicosia 1678, CyprusDepartment of Chemistry, University of Cyprus, P.O. Box 20537, Nicosia 1678, CyprusDepartment of Chemistry, University of Cyprus, P.O. Box 20537, Nicosia 1678, CyprusSchool of Chemistry, National University of Ireland Galway, University Road, H91 TK3 Galway, IrelandCell viability studies for benzo[1,2,4]triazin-7-ones and 1,2,4-benzotriazinyl (Blatter-type) radical precursors are described with comparisons made with 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO). All of the stable free radicals were several orders of magnitude less cytotoxic than the benzo[1,2,4]triazin-7-ones. The synthesis and evaluation of two new pyrid-2-yl benzo[1,2,4]triazin-7-ones are described, where altering the 1,3-substitution from phenyl to pyrid-2-yl increased cytotoxicity against most cancer cell lines, as indicated using National Cancer Institute (NCI) one-dose testing. COMPARE analysis of five-dose testing data from the NCI showed very strong correlations to the naturally occurring anti-cancer compound pleurotin. COMPARE is program, which analyzes similarities in cytotoxicity data of compounds, and enables quantitative expression as Pearson correlation coefficients. Compounds were also evaluated using the independent MTT assay, which was compared with SRB assay data generated at the NCI.http://www.mdpi.com/1420-3049/23/3/574anti-tumourblatter-type radicalheterocyclic compoundNCIpleurotinTEMPO
collection DOAJ
language English
format Article
sources DOAJ
author Lee-Ann J. Keane
Styliana I. Mirallai
Martin Sweeney
Michael P. Carty
Georgia A. Zissimou
Andrey A. Berezin
Panayiotis A. Koutentis
Fawaz Aldabbagh
spellingShingle Lee-Ann J. Keane
Styliana I. Mirallai
Martin Sweeney
Michael P. Carty
Georgia A. Zissimou
Andrey A. Berezin
Panayiotis A. Koutentis
Fawaz Aldabbagh
Anti-Cancer Activity of Phenyl and Pyrid-2-yl 1,3-Substituted Benzo[1,2,4]triazin-7-ones and Stable Free Radical Precursors
Molecules
anti-tumour
blatter-type radical
heterocyclic compound
NCI
pleurotin
TEMPO
author_facet Lee-Ann J. Keane
Styliana I. Mirallai
Martin Sweeney
Michael P. Carty
Georgia A. Zissimou
Andrey A. Berezin
Panayiotis A. Koutentis
Fawaz Aldabbagh
author_sort Lee-Ann J. Keane
title Anti-Cancer Activity of Phenyl and Pyrid-2-yl 1,3-Substituted Benzo[1,2,4]triazin-7-ones and Stable Free Radical Precursors
title_short Anti-Cancer Activity of Phenyl and Pyrid-2-yl 1,3-Substituted Benzo[1,2,4]triazin-7-ones and Stable Free Radical Precursors
title_full Anti-Cancer Activity of Phenyl and Pyrid-2-yl 1,3-Substituted Benzo[1,2,4]triazin-7-ones and Stable Free Radical Precursors
title_fullStr Anti-Cancer Activity of Phenyl and Pyrid-2-yl 1,3-Substituted Benzo[1,2,4]triazin-7-ones and Stable Free Radical Precursors
title_full_unstemmed Anti-Cancer Activity of Phenyl and Pyrid-2-yl 1,3-Substituted Benzo[1,2,4]triazin-7-ones and Stable Free Radical Precursors
title_sort anti-cancer activity of phenyl and pyrid-2-yl 1,3-substituted benzo[1,2,4]triazin-7-ones and stable free radical precursors
publisher MDPI AG
series Molecules
issn 1420-3049
publishDate 2018-03-01
description Cell viability studies for benzo[1,2,4]triazin-7-ones and 1,2,4-benzotriazinyl (Blatter-type) radical precursors are described with comparisons made with 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO). All of the stable free radicals were several orders of magnitude less cytotoxic than the benzo[1,2,4]triazin-7-ones. The synthesis and evaluation of two new pyrid-2-yl benzo[1,2,4]triazin-7-ones are described, where altering the 1,3-substitution from phenyl to pyrid-2-yl increased cytotoxicity against most cancer cell lines, as indicated using National Cancer Institute (NCI) one-dose testing. COMPARE analysis of five-dose testing data from the NCI showed very strong correlations to the naturally occurring anti-cancer compound pleurotin. COMPARE is program, which analyzes similarities in cytotoxicity data of compounds, and enables quantitative expression as Pearson correlation coefficients. Compounds were also evaluated using the independent MTT assay, which was compared with SRB assay data generated at the NCI.
topic anti-tumour
blatter-type radical
heterocyclic compound
NCI
pleurotin
TEMPO
url http://www.mdpi.com/1420-3049/23/3/574
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