PMID-sentid Pub_year Sent_text compound_name comp_offset prot_official_name organism prot_offset 17094478-2 2006 The aim of this study was to study the effect of 2,5 bis-[1-aziridinyl]-1,4 benzoquinone (DZQ), an antitumor quinone bioactivated by NQO1, on HeLa and HepG2 cells cultured at various cell densities. ethylenimine quinone 49-88 NAD(P)H quinone dehydrogenase 1 Homo sapiens 133-137 17094478-2 2006 The aim of this study was to study the effect of 2,5 bis-[1-aziridinyl]-1,4 benzoquinone (DZQ), an antitumor quinone bioactivated by NQO1, on HeLa and HepG2 cells cultured at various cell densities. ethylenimine quinone 90-93 NAD(P)H quinone dehydrogenase 1 Homo sapiens 133-137 17094478-8 2006 The growth inhibition effect of DZQ, correlated with NQO1 activity within a given cell type, but HepG2 was always much more sensitive to DZQ than HeLa cells, even under conditions where NQO1 activity was high in HeLa but low in HepG2. ethylenimine quinone 32-35 NAD(P)H quinone dehydrogenase 1 Homo sapiens 53-57 17094478-8 2006 The growth inhibition effect of DZQ, correlated with NQO1 activity within a given cell type, but HepG2 was always much more sensitive to DZQ than HeLa cells, even under conditions where NQO1 activity was high in HeLa but low in HepG2. ethylenimine quinone 32-35 NAD(P)H quinone dehydrogenase 1 Homo sapiens 186-190 17094478-9 2006 CONCLUSION: These results suggest that NQO1 activity is a major factor for DZQ bioactivation, but this enzyme is not likely the sole factor involved in the growth inhibition mediated by DZQ. ethylenimine quinone 75-78 NAD(P)H quinone dehydrogenase 1 Homo sapiens 39-43 9690517-3 1998 We have shown earlier that the quinone 3,6-diaziridinyl-1,4-benzoquinone (DZQ) leads to the increased expression of p21waf1/cip1/sdi1 protein, an inhibitor of cyclin-dependent kinases. ethylenimine quinone 39-72 cyclin dependent kinase inhibitor 1A Homo sapiens 116-128 11211879-3 2000 DZQ-induced DNA adduct was first formed in the radiolabeled restriction enzyme DNA fragment, and excision of the DNA adduct was analyzed following treatment with homogeneous 3-methyladenine-DNA glycosylase from E. coli, rat, and human, respectively. ethylenimine quinone 0-3 N-methylpurine DNA glycosylase Homo sapiens 174-205 9690517-8 1998 Restoration of wild type p53 status in HL60 myeloid leukemia cells significantly increases the cells" sensitivity to the cytotoxic effects of DZQ. ethylenimine quinone 142-145 tumor protein p53 Homo sapiens 25-28 9690517-3 1998 We have shown earlier that the quinone 3,6-diaziridinyl-1,4-benzoquinone (DZQ) leads to the increased expression of p21waf1/cip1/sdi1 protein, an inhibitor of cyclin-dependent kinases. ethylenimine quinone 39-72 cyclin dependent kinase inhibitor 1A Homo sapiens 129-133 9690517-3 1998 We have shown earlier that the quinone 3,6-diaziridinyl-1,4-benzoquinone (DZQ) leads to the increased expression of p21waf1/cip1/sdi1 protein, an inhibitor of cyclin-dependent kinases. ethylenimine quinone 74-77 cyclin dependent kinase inhibitor 1A Homo sapiens 116-128 9690517-3 1998 We have shown earlier that the quinone 3,6-diaziridinyl-1,4-benzoquinone (DZQ) leads to the increased expression of p21waf1/cip1/sdi1 protein, an inhibitor of cyclin-dependent kinases. ethylenimine quinone 74-77 cyclin dependent kinase inhibitor 1A Homo sapiens 129-133 9690517-4 1998 Because p21 has been established as an important negative regulator of the cell cycle, we further investigated the molecular basis of p21 induction by DZQ. ethylenimine quinone 151-154 cyclin dependent kinase inhibitor 1A Homo sapiens 8-11 9690517-4 1998 Because p21 has been established as an important negative regulator of the cell cycle, we further investigated the molecular basis of p21 induction by DZQ. ethylenimine quinone 151-154 cyclin dependent kinase inhibitor 1A Homo sapiens 134-137 9690517-5 1998 Here we report that the induction of p21 by DZQ is regulated at the transcriptional level, and requires the activation of p53, a tumor suppressor protein. ethylenimine quinone 44-47 cyclin dependent kinase inhibitor 1A Homo sapiens 37-40 9690517-5 1998 Here we report that the induction of p21 by DZQ is regulated at the transcriptional level, and requires the activation of p53, a tumor suppressor protein. ethylenimine quinone 44-47 tumor protein p53 Homo sapiens 122-125 9690517-6 1998 In cells that lack functional p53 protein, DZQ-mediated p21 induction is greatly diminished. ethylenimine quinone 43-46 tumor protein p53 Homo sapiens 30-33 9690517-6 1998 In cells that lack functional p53 protein, DZQ-mediated p21 induction is greatly diminished. ethylenimine quinone 43-46 cyclin dependent kinase inhibitor 1A Homo sapiens 56-59 9690517-7 1998 However, the introduction of a wild type p53 gene into p53-negative cells restores the strong DZQ-inducibility of p21. ethylenimine quinone 94-97 tumor protein p53 Homo sapiens 41-44 9690517-7 1998 However, the introduction of a wild type p53 gene into p53-negative cells restores the strong DZQ-inducibility of p21. ethylenimine quinone 94-97 tumor protein p53 Homo sapiens 55-58 9690517-7 1998 However, the introduction of a wild type p53 gene into p53-negative cells restores the strong DZQ-inducibility of p21. ethylenimine quinone 94-97 cyclin dependent kinase inhibitor 1A Homo sapiens 114-117 8943236-7 1996 The redox transitions of DZQ involved hydroxyl radical formation and were strongly inhibited by catalase, whereas those of AZQ showed a strong superoxide anion component sensitive to superoxide dismutase. ethylenimine quinone 25-28 catalase Homo sapiens 96-104 9586815-1 1998 Reactive oxygen species generated during the metabolism of the antitumor quinone 3,6-diaziridinyl-1,4-benzoquinone (DZQ) in human colonic carcinoma HCT116 cells lead to the induction of p21 (WAF1, Cip1, or sdi1), an upstream regulator of the retinoblastoma gene product pRb involved G1 cell cycle control. ethylenimine quinone 81-114 cyclin dependent kinase inhibitor 1A Homo sapiens 186-189 9586815-1 1998 Reactive oxygen species generated during the metabolism of the antitumor quinone 3,6-diaziridinyl-1,4-benzoquinone (DZQ) in human colonic carcinoma HCT116 cells lead to the induction of p21 (WAF1, Cip1, or sdi1), an upstream regulator of the retinoblastoma gene product pRb involved G1 cell cycle control. ethylenimine quinone 81-114 cyclin dependent kinase inhibitor 1A Homo sapiens 191-195 9586815-1 1998 Reactive oxygen species generated during the metabolism of the antitumor quinone 3,6-diaziridinyl-1,4-benzoquinone (DZQ) in human colonic carcinoma HCT116 cells lead to the induction of p21 (WAF1, Cip1, or sdi1), an upstream regulator of the retinoblastoma gene product pRb involved G1 cell cycle control. ethylenimine quinone 81-114 cyclin dependent kinase inhibitor 1A Homo sapiens 197-201 9586815-1 1998 Reactive oxygen species generated during the metabolism of the antitumor quinone 3,6-diaziridinyl-1,4-benzoquinone (DZQ) in human colonic carcinoma HCT116 cells lead to the induction of p21 (WAF1, Cip1, or sdi1), an upstream regulator of the retinoblastoma gene product pRb involved G1 cell cycle control. ethylenimine quinone 81-114 cyclin dependent kinase inhibitor 1A Homo sapiens 206-210 9586815-1 1998 Reactive oxygen species generated during the metabolism of the antitumor quinone 3,6-diaziridinyl-1,4-benzoquinone (DZQ) in human colonic carcinoma HCT116 cells lead to the induction of p21 (WAF1, Cip1, or sdi1), an upstream regulator of the retinoblastoma gene product pRb involved G1 cell cycle control. ethylenimine quinone 81-114 RB transcriptional corepressor 1 Homo sapiens 270-273 9586815-1 1998 Reactive oxygen species generated during the metabolism of the antitumor quinone 3,6-diaziridinyl-1,4-benzoquinone (DZQ) in human colonic carcinoma HCT116 cells lead to the induction of p21 (WAF1, Cip1, or sdi1), an upstream regulator of the retinoblastoma gene product pRb involved G1 cell cycle control. ethylenimine quinone 116-119 cyclin dependent kinase inhibitor 1A Homo sapiens 186-189 9586815-1 1998 Reactive oxygen species generated during the metabolism of the antitumor quinone 3,6-diaziridinyl-1,4-benzoquinone (DZQ) in human colonic carcinoma HCT116 cells lead to the induction of p21 (WAF1, Cip1, or sdi1), an upstream regulator of the retinoblastoma gene product pRb involved G1 cell cycle control. ethylenimine quinone 116-119 cyclin dependent kinase inhibitor 1A Homo sapiens 191-195 9586815-1 1998 Reactive oxygen species generated during the metabolism of the antitumor quinone 3,6-diaziridinyl-1,4-benzoquinone (DZQ) in human colonic carcinoma HCT116 cells lead to the induction of p21 (WAF1, Cip1, or sdi1), an upstream regulator of the retinoblastoma gene product pRb involved G1 cell cycle control. ethylenimine quinone 116-119 cyclin dependent kinase inhibitor 1A Homo sapiens 197-201 9586815-1 1998 Reactive oxygen species generated during the metabolism of the antitumor quinone 3,6-diaziridinyl-1,4-benzoquinone (DZQ) in human colonic carcinoma HCT116 cells lead to the induction of p21 (WAF1, Cip1, or sdi1), an upstream regulator of the retinoblastoma gene product pRb involved G1 cell cycle control. ethylenimine quinone 116-119 cyclin dependent kinase inhibitor 1A Homo sapiens 206-210 9586815-1 1998 Reactive oxygen species generated during the metabolism of the antitumor quinone 3,6-diaziridinyl-1,4-benzoquinone (DZQ) in human colonic carcinoma HCT116 cells lead to the induction of p21 (WAF1, Cip1, or sdi1), an upstream regulator of the retinoblastoma gene product pRb involved G1 cell cycle control. ethylenimine quinone 116-119 RB transcriptional corepressor 1 Homo sapiens 270-273 9586815-2 1998 We here demonstrate that the cell cycle was arrested in G2/M phase following supplementation with DZQ of human osteosarcoma Saos-2 cells (lacking both p53 and pRb) and HCT116 cells. ethylenimine quinone 98-101 tumor protein p53 Homo sapiens 151-154 9586815-2 1998 We here demonstrate that the cell cycle was arrested in G2/M phase following supplementation with DZQ of human osteosarcoma Saos-2 cells (lacking both p53 and pRb) and HCT116 cells. ethylenimine quinone 98-101 RB transcriptional corepressor 1 Homo sapiens 159-162 9586815-3 1998 DZQ also induced p21 and apoptosis in Saos-2 cells. ethylenimine quinone 0-3 cyclin dependent kinase inhibitor 1A Homo sapiens 17-20 9343371-17 1997 The metabolism of DZQ and AZQ in BE cells was associated with a significant increase of p21 mRNA levels; the former quinone was approximately 2-fold more efficient than the latter. ethylenimine quinone 18-21 cyclin dependent kinase inhibitor 1A Homo sapiens 88-91 9343371-18 1997 DZQ metabolism in HT29 cells led to an increase of p21 mRNA levels 15-fold higher than that observed with AZQ activation. ethylenimine quinone 0-3 cyclin dependent kinase inhibitor 1A Homo sapiens 51-54 9343371-23 1997 It may be surmised that the higher efficiency of DZQ in p21 induction may be related to its efficient metabolism by NQOR in HT29 cells and the associated high level of reactive oxygen species. ethylenimine quinone 49-52 cyclin dependent kinase inhibitor 1A Homo sapiens 56-59 8943236-3 1996 In this context, we have examined the induction of the cell cycle inhibitor p21 (WAF1, CIP1, or sdi1), whose overexpression suppresses the growth of various tumor cells, in human tumor cells metabolizing 3,6-diaziridinyl-1,4-benzoquinone (DZQ) and its C2,C5-substituted derivatives: 2,5-bis-(carboethoxyamino) (AZQ) and 2, 5-bis-2(-hydroxyethylamino) (BZQ). ethylenimine quinone 204-237 cyclin dependent kinase inhibitor 1A Homo sapiens 76-79 8943236-3 1996 In this context, we have examined the induction of the cell cycle inhibitor p21 (WAF1, CIP1, or sdi1), whose overexpression suppresses the growth of various tumor cells, in human tumor cells metabolizing 3,6-diaziridinyl-1,4-benzoquinone (DZQ) and its C2,C5-substituted derivatives: 2,5-bis-(carboethoxyamino) (AZQ) and 2, 5-bis-2(-hydroxyethylamino) (BZQ). ethylenimine quinone 204-237 cyclin dependent kinase inhibitor 1A Homo sapiens 81-85 8943236-3 1996 In this context, we have examined the induction of the cell cycle inhibitor p21 (WAF1, CIP1, or sdi1), whose overexpression suppresses the growth of various tumor cells, in human tumor cells metabolizing 3,6-diaziridinyl-1,4-benzoquinone (DZQ) and its C2,C5-substituted derivatives: 2,5-bis-(carboethoxyamino) (AZQ) and 2, 5-bis-2(-hydroxyethylamino) (BZQ). ethylenimine quinone 204-237 cyclin dependent kinase inhibitor 1A Homo sapiens 87-91 8943236-3 1996 In this context, we have examined the induction of the cell cycle inhibitor p21 (WAF1, CIP1, or sdi1), whose overexpression suppresses the growth of various tumor cells, in human tumor cells metabolizing 3,6-diaziridinyl-1,4-benzoquinone (DZQ) and its C2,C5-substituted derivatives: 2,5-bis-(carboethoxyamino) (AZQ) and 2, 5-bis-2(-hydroxyethylamino) (BZQ). ethylenimine quinone 204-237 cyclin dependent kinase inhibitor 1A Homo sapiens 96-100 8943236-3 1996 In this context, we have examined the induction of the cell cycle inhibitor p21 (WAF1, CIP1, or sdi1), whose overexpression suppresses the growth of various tumor cells, in human tumor cells metabolizing 3,6-diaziridinyl-1,4-benzoquinone (DZQ) and its C2,C5-substituted derivatives: 2,5-bis-(carboethoxyamino) (AZQ) and 2, 5-bis-2(-hydroxyethylamino) (BZQ). ethylenimine quinone 239-242 cyclin dependent kinase inhibitor 1A Homo sapiens 76-79 8943236-3 1996 In this context, we have examined the induction of the cell cycle inhibitor p21 (WAF1, CIP1, or sdi1), whose overexpression suppresses the growth of various tumor cells, in human tumor cells metabolizing 3,6-diaziridinyl-1,4-benzoquinone (DZQ) and its C2,C5-substituted derivatives: 2,5-bis-(carboethoxyamino) (AZQ) and 2, 5-bis-2(-hydroxyethylamino) (BZQ). ethylenimine quinone 239-242 cyclin dependent kinase inhibitor 1A Homo sapiens 81-85 8943236-10 1996 DZQ and AZQ induced significantly the expression of p21 in HCT116 cells, but a 10-fold higher concentration of AZQ was required to achieve the level of induction elicited by DZQ. ethylenimine quinone 0-3 cyclin dependent kinase inhibitor 1A Homo sapiens 52-55 8943236-10 1996 DZQ and AZQ induced significantly the expression of p21 in HCT116 cells, but a 10-fold higher concentration of AZQ was required to achieve the level of induction elicited by DZQ. ethylenimine quinone 174-177 cyclin dependent kinase inhibitor 1A Homo sapiens 52-55 8943236-17 1996 This study suggests that p21 induction is mediated by an increase in the cellular steady-state concentration of oxygen radicals and that the greater effectiveness in p21 induction by DZQ may be related to its efficient metabolism by NAD(P)H:quinone oxidoreductase activity in HCT116 cells. ethylenimine quinone 183-186 cyclin dependent kinase inhibitor 1A Homo sapiens 25-28 8943236-17 1996 This study suggests that p21 induction is mediated by an increase in the cellular steady-state concentration of oxygen radicals and that the greater effectiveness in p21 induction by DZQ may be related to its efficient metabolism by NAD(P)H:quinone oxidoreductase activity in HCT116 cells. ethylenimine quinone 183-186 cyclin dependent kinase inhibitor 1A Homo sapiens 166-169 8461296-3 1993 Analysis of the principal cross-linked products by piperidine fragmentation revealed that the preferential site of cross-linking was altered from a 5"-GNC to a 5"-GC sequence upon reduction of DZQ to the hydroquinone form by the enzyme DT-diaphorase. ethylenimine quinone 193-196 NAD(P)H quinone dehydrogenase 1 Homo sapiens 236-249 9101243-1 1995 Activation of 2,5-diaziridinyl-1,4-benzoquinones bearing halogen (Cl, Br, or F) substituents at C3 and C6 by NADPH-cytochrome P450 reductase and glutathione nucleophilic substitution was examined in terms of free radical production and DNA strand scission. ethylenimine quinone 14-48 cytochrome p450 oxidoreductase Homo sapiens 109-140 2154955-2 1990 The reduction rate has been assayed by measuring the rate of reduction of cytochrome c, which is very efficiently reduced by reduced BABQ species. ethylenimine quinone 133-137 cytochrome c, somatic Homo sapiens 74-86 2154955-5 1990 This is also confirmed by the effect of superoxide dismutase (SOD): in the presence of a BABQ derivative, cytochrome c reduction can be totally inhibited by SOD, although the required amount of SOD depends on the redox potential of the quinones. ethylenimine quinone 89-93 superoxide dismutase 1 Homo sapiens 40-60 2154955-5 1990 This is also confirmed by the effect of superoxide dismutase (SOD): in the presence of a BABQ derivative, cytochrome c reduction can be totally inhibited by SOD, although the required amount of SOD depends on the redox potential of the quinones. ethylenimine quinone 89-93 superoxide dismutase 1 Homo sapiens 62-65 2154955-5 1990 This is also confirmed by the effect of superoxide dismutase (SOD): in the presence of a BABQ derivative, cytochrome c reduction can be totally inhibited by SOD, although the required amount of SOD depends on the redox potential of the quinones. ethylenimine quinone 89-93 cytochrome c, somatic Homo sapiens 106-118 2154955-5 1990 This is also confirmed by the effect of superoxide dismutase (SOD): in the presence of a BABQ derivative, cytochrome c reduction can be totally inhibited by SOD, although the required amount of SOD depends on the redox potential of the quinones. ethylenimine quinone 89-93 superoxide dismutase 1 Homo sapiens 157-160 2154955-5 1990 This is also confirmed by the effect of superoxide dismutase (SOD): in the presence of a BABQ derivative, cytochrome c reduction can be totally inhibited by SOD, although the required amount of SOD depends on the redox potential of the quinones. ethylenimine quinone 89-93 superoxide dismutase 1 Homo sapiens 157-160