Title : Role of redox cycling and activation by DT-diaphorase in the cytotoxicity of 5-(aziridin-1-yl)-2,4-dinitrobenzamide (CB-1954) and its analogs.

Pub. Date : 1999 Nov 15

PMID : 10656629






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1 Role of redox cycling and activation by DT-diaphorase in the cytotoxicity of 5-(aziridin-1-yl)-2,4-dinitrobenzamide (CB-1954) and its analogs. tretazicar NAD(P)H quinone dehydrogenase 1 Homo sapiens
2 In tumor cell lines with high content of DT-diaphorase (EC 1.6.99.2), the cytotoxicity of 5-(aziridin-1-yl)-2,4-dinitrobenzamide (CB-1954) and its derivatives is exerted through DT-diaphorase-catalyzed formation of crosslinking species. tretazicar NAD(P)H quinone dehydrogenase 1 Homo sapiens
3 In tumor cell lines with high content of DT-diaphorase (EC 1.6.99.2), the cytotoxicity of 5-(aziridin-1-yl)-2,4-dinitrobenzamide (CB-1954) and its derivatives is exerted through DT-diaphorase-catalyzed formation of crosslinking species. tretazicar NAD(P)H quinone dehydrogenase 1 Homo sapiens
4 In tumor cell lines with high content of DT-diaphorase (EC 1.6.99.2), the cytotoxicity of 5-(aziridin-1-yl)-2,4-dinitrobenzamide (CB-1954) and its derivatives is exerted through DT-diaphorase-catalyzed formation of crosslinking species. tretazicar NAD(P)H quinone dehydrogenase 1 Homo sapiens
5 In tumor cell lines with high content of DT-diaphorase (EC 1.6.99.2), the cytotoxicity of 5-(aziridin-1-yl)-2,4-dinitrobenzamide (CB-1954) and its derivatives is exerted through DT-diaphorase-catalyzed formation of crosslinking species. tretazicar NAD(P)H quinone dehydrogenase 1 Homo sapiens
6 Using multiparameter regression analysis, we have found that the toxicity of CB-1954 derivatives as well as that of several non-alkylating nitroaromatics, increased upon the increase in their single-electron reduction potential (E(1)7) and octanol/water partition coefficient (P), and almost did not depend on their reactivity towards DT-diaphorase. tretazicar NAD(P)H quinone dehydrogenase 1 Homo sapiens
7 It seems that in cell lines with a moderate amount of DT-diaphorase, the toxicity of CB- 1954 and its analogs is exerted through their redox cycling. tretazicar NAD(P)H quinone dehydrogenase 1 Homo sapiens