Document Information


PMID 11287350  (  )
Title Activation of NADPH oxidase by AGE links oxidant stress to altered gene expression via RAGE.
Abstract Engagement of the receptor for advanced glycation end products (RAGE) by products of nonenzymatic glycation/oxidation triggers the generation of reactive oxygen species (ROS), thereby altering gene expression. Because dissection of the precise events by which ROS are generated via RAGE is relevant to the pathogenesis of complications in AGE-related disorders, such as diabetes and renal failure, we tested the hypothesis that activation of NADPH oxidase contributed, at least in part, to enhancing oxidant stress via RAGE. Here we show that incubation of human endothelial cells with AGEs on the surface of diabetic red blood cells, or specific AGEs, (carboxymethyl)lysine (CML)-modified adducts, prompted intracellular generation of hydrogen peroxide, cell surface expression of vascular cell adhesion molecule-1, and generation of tissue factor in a manner suppressed by treatment with diphenyliodonium, but not by inhibitors of nitric oxide. Consistent with an important role for NADPH oxidase, although macrophages derived from wild-type mice expressed enhanced levels of tissue factor upon stimulation with AGE, macrophages derived from mice deficient in a central subunit of NADPH oxidase, gp91phox, failed to display enhanced tissue factor in the presence of AGE. These findings underscore a central role of NADPH oxidase in AGE-RAGE-mediated generation of ROS and provide a mechanism for altered gene expression in AGE-related disorders. Paris, France 75475. wautier@ints.fr

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Targets by SciMiner Summary

HUGO ID Symbol Target Name #Occur ActualStr
12663VCAM1vascular cell adhesion molecule 129vascular cell adhesion molecule 1 | VCAM-1 |
14874NOX5NADPH oxidase, EF-hand calcium binding domain 521nadph oxidase |
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))8SOD | superoxide dismutase |
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)7NF-kB | NF-kappaB |
1516CATcatalase6catalase |
6871MAPK1mitogen-activated protein kinase 15ERK | MAP | p38 |
4983HMGB1high-mobility group box 14amphoterin |
3528F10coagulation factor X4factor xa |
2578CYBBcytochrome b-245, beta polypeptide (chronic granulomatous disease)4gp91phox-containing | gp91 phox |
1784CDKN1Acyclin-dependent kinase inhibitor 1A (p21, Cip1)4p21 |
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)2amyloid-induced |
10486S100A1S100 calcium binding protein A12S100 |
6204JUNjun oncogene2c jun | c-Jun |
19986CYCScytochrome c, somatic2cytochrome c |
6877MAPK3mitogen-activated protein kinase 32p44 |
7872NOS1nitric oxide synthase 1 (neuronal)2NOS |
21420CCRKcell cycle related kinase1p42 |
5013HMOX1heme oxygenase (decycling) 11heme oxygenase 1 |
914B2Mbeta-2-microglobulin1beta 2 microglobulin |
11892TNFtumor necrosis factor (TNF superfamily, member 2)1tumor necrosis factor alpha |
12805XDHxanthine dehydrogenase1xanthine oxidase |
399ALBalbumin1albumin |
4827HBBhemoglobin, beta1hemoglobin |
613APOEapolipoprotein E1apolipoprotein e |
6677LPLlipoprotein lipase1lipoprotein lipase |

 


Targets by SciMiner Full list

HUGO ID Symbol Name ActualStr Score FlankingText
2578CYBBcytochrome b-245, beta polypeptide (chronic granulomatous disease)gp91phox2.8from mice deficient in a central subunit of NADPH oxidase gp91phox failed to display enhanced tissue factor in the presence of
1784CDKN1Acyclin-dependent kinase inhibitor 1A (p21, Cip1)p210.3cascade of signal transduction events involving at least in part p21 p44/p42 p44 p42 mitogen-activated protein kinases and NF-kappaB ( 10
21420CCRKcell cycle related kinasep420.6transduction events involving at least in part p21 p44/p42 p44 p42 mitogen-activated protein kinases and NF-kappaB ( 10 13 21 50
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.3in part p21 p44/p42 p44 p42 mitogen-activated protein kinases and NF-kappaB ( 10 13 21 50 56
6877MAPK3mitogen-activated protein kinase 3p440.4signal transduction events involving at least in part p21 p44/p42 p44 p42 mitogen-activated protein kinases and NF-kappaB ( 10 13 21
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.3Specifically CML-mediated activation of NF-kappaB by CML-ovalbumin was markedly suppressed in DN-RAGE-transfected cells vs mock-transfected
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.3TBARS increased mRNA for heme oxygenase-1 enhanced nuclear translocation of NF-kappaB and increased endothelial expression of vascular cell adhesion molecule-1 (VCAM-1)
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8and increased endothelial expression of vascular cell adhesion molecule-1 (VCAM-1) VCAM-1 and endothelial permeability ( 44 51 52 56
6871MAPK1mitogen-activated protein kinase 1ERK1.6this concept in vascular smooth muscle cells AGE-RAGE-mediated activation of ERK 1/2 1 2 kinases was enhanced in the presence of
1784CDKN1Acyclin-dependent kinase inhibitor 1A (p21, Cip1)p210.3demonstrated that ROIs generated in the cellular milieu directly activated p21 in those experiments the cysteine at position 118 was a
1784CDKN1Acyclin-dependent kinase inhibitor 1A (p21, Cip1)p210.3transduction pathways RAGE-bearing PC12 cells stably transfected to express mutant p21 in which Cys was mutated to a serine displayed complete
6871MAPK1mitogen-activated protein kinase 1ERK1.6mutated to a serine displayed complete suppression of activation of ERK 1/2 1 2 kinases upon exposure to AGE-albumin
6871MAPK1mitogen-activated protein kinase 1ERK1.6In contrast AGE-mediated activation of ERK 1/2 1 2 kinases in PC12 cells overexpressing wild-type p21
1784CDKN1Acyclin-dependent kinase inhibitor 1A (p21, Cip1)p210.3ERK 1/2 1 2 kinases in PC12 cells overexpressing wild-type p21 was intact ( 21
4827HBBhemoglobin, betahemoglobin1.0The mean level of glycemia and %glycosylated hemoglobin observed in diabetic patients was 14.6 _amp_#177 3.3 mmol/l mmol
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD0.9Where indicated superoxide dismutase (SOD; SOD 300 U/ml; U ml Sigma catalase (100 100 U/ml; U
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD0.9sRAGE (60 60 microg/ml), microg ml probucol (50 50 microM SOD (300 300 U/ml), U ml or catalase (100 100 U/ml)
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8Determination of VCAM-1 expression
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8with the indicated mediators for 16 h before determination of VCAM-1 expression
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8VCAM-1 expression was measured using mouse anti-human VCAM-1 IgG (R_amp_D R_amp_D
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8VCAM-1 expression was measured using mouse anti-human VCAM-1 IgG (R_amp_D R_amp_D Systems Abington Oxon UK
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kB0.3range of markers of oxidant stress including TBARS activation of NF-kB and induction of monolayer hyperpermeability all of these effects were
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD0.9Antioxidants including catalase SOD probucol and NAC inhibited DRBC-mediated generation of ROI in the
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD0.9However the antioxidants catalase and SOD were without significant effect on DRBC-mediated generation of intracellular H
2578CYBBcytochrome b-245, beta polypeptide (chronic granulomatous disease)gp91phox-containing2.8Importantly recent studies indicating that endothelial cells express a gp91phox-containing NADPH oxidase ( 8 support our hypothesis that activation of
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid1.3to AGEs RAGE serves as a cell surface receptor for amyloid beta-peptide (A A beta a cleavage product of the beta-amyloid
620APPamyloid beta (A4) precursor protein (peptidase nexin-II, Alzheimer disease)amyloid-induced1.3of RAGE in a murine model of systemic amyloidosis suppressed amyloid-induced nuclear translocation of NF-kappaB and cellular activation ( 58
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.3murine model of systemic amyloidosis suppressed amyloid-induced nuclear translocation of NF-kappaB and cellular activation ( 58
10486S100A1S100 calcium binding protein A1S1001.3binding protein (ENRAGEs) ENRAGEs and related members of the S100/calgranulin S100 calgranulin family of proinflammatory cytokines ( 10
10486S100A1S100 calcium binding protein A1S1001.3The S100/calgranulin S100 calgranulin family is comprised of closely related polypeptides released from
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.3the inflammatory phenotype inhibition of RAGE-S100/calgranulin RAGE-S100 calgranulin interaction decreased NF-kappaB activation and expression of proinflammatory cytokines in tissues suggesting that
6871MAPK1mitogen-activated protein kinase 1p381.6signaling on amphoterin-coated matrices suppressed activation of p44/42, p44 42 p38 and stress-activated and c-Jun NH 2 -terminal protein kinases (
6204JUNjun oncogenec-Jun1.3suppressed activation of p44/42, p44 42 p38 and stress-activated and c-Jun NH 2 -terminal protein kinases ( 50
6877MAPK3mitogen-activated protein kinase 3p440.2RAGE RAGE signaling on amphoterin-coated matrices suppressed activation of p44/42, p44 42 p38 and stress-activated and c-Jun NH 2 -terminal protein
6871MAPK1mitogen-activated protein kinase 1MAP1.6In this context one consequence of ligand-RAGE-mediated activation of MAP kinases and NF-kappaB is increased transcription and translation of VCAM-1
7794NFKB1nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105)NF-kappaB0.3context one consequence of ligand-RAGE-mediated activation of MAP kinases and NF-kappaB is increased transcription and translation of VCAM-1
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8MAP kinases and NF-kappaB is increased transcription and translation of VCAM-1
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8adhesion of proinflammatory mononuclear cells at least in part via VCAM-1
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8Recent studies have suggested that the proinflammatory effects of VCAM-1 are not limited to cellular adhesion events as binding of
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8limited to cellular adhesion events as binding of ligand to VCAM-1 in endothelial cell lines and primary cultures induced activation of
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8NADPH oxidase and a range of proinflammatory mediators such as VCAM-1
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD0.9products (sRAGE; sRAGE 60 microg/ml), microg ml superoxide dismutase (SOD; SOD 300 U/ml), U ml catalase (100 100 U/ml), U ml
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))SOD0.960 microg/ml), microg ml catalase (100 100 U/ml), U ml SOD (300 300 U/ml), U ml probucol (50 50 microM diphenyliodonium
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8enhances cell surface expression of vascular cell adhesion molecule-1 (VCAM-1) VCAM-1
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8VCAM-1 expression was measured using mouse anti-human VCAM-1 Ig and binding
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8VCAM-1 expression was measured using mouse anti-human VCAM-1 Ig and binding was revealed with a second antibody I-labeled
2578CYBBcytochrome b-245, beta polypeptide (chronic granulomatous disease)gp91phox2.8Thioglycollate-elicited MPs were retrieved from mice deficient in gp91phox or wild-type C57BL/6J C57BL 6J mice
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8patients with diabetes resulted in increased transcription and translation of VCAM-1 ( 44
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8resulted in an 1.8-fold increase in cell surface expression of VCAM-1 (Fig Fig 2 A
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8these events was demonstrated by suppression of DRBC-mediated induction of VCAM-1 in the presence of sRAGE (Fig Fig 2 A
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8was the finding that marked suppression of DRBC-mediated expression of VCAM-1 resulted in the presence of DPI (Fig Fig 2 A
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8indicate that the effects of DPI on DRBC-mediated expression of VCAM-1 were dose dependent
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8Compared with induction of VCAM-1 by DRBC in the absence of DPI (2.73 2.73 _amp_#177
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8microM resulted in an 90% reduction in specific activity for VCAM-1 (0.359 0.359 _amp_#177 0.035 cpm _amp_#215 10 P _lt_ 0.001
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8Compared with induction of VCAM-1 by DRBC in the absence of DPI treatment with DPI
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8microM resulted in an 70% reduction in specific activity for VCAM-1 (0.814 0.814 _amp_#177 0.105 cpm _amp_#215 10 P _lt_ 0.01
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8(0.5 0.5 microM an 50% reduction in specific activity for VCAM-1 was noted 1.355 _amp_#177 0.15 x 10 counts/min counts min
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8(0.25 0.25 microM an 24% reduction in specific activity for VCAM-1 was noted (2.105 2.105 _amp_#177 0.32 cpm _amp_#215 10 P
7872NOS1nitric oxide synthase 1 (neuronal)NOS0.9In contrast blockade of NO synthase (NOS) NOS with L -NMMA had no effect (Fig Fig 2 A
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8resulted in a significant increase in cell surface expression of VCAM-1 (Fig Fig 2 B
12663VCAM1vascular cell adhesion molecule 1VCAM-11.8DRBC or CML-modified adducts did not affect basal expression of VCAM-1 in these studies (data data not shown
7872NOS1nitric oxide synthase 1 (neuronal)NOS0.9In contrast blockade of NOS with L -NMMA had no effect (Fig Fig 3
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0ise events by which ros are generated via rage is relevant to the pathogenesis of complications in age related disorders such as diabetes and renal failure we tested the hypothesis that activation of nadph oxidase contributed at least in part to enhancing oxidant stress via rage.
12663VCAM1vascular cell adhesion molecule 1vascular cell adhesion molecule 11.0cells with ages on the surface of diabetic red blood cells or specific ages carboxymethyl lysine cml modified adducts prompted intracellular generation of hydrogen peroxide cell surface expression of vascular cell adhesion molecule 1 and generation of tissue factor in a manner suppressed by treatment with diphenyliodonium but not by inhibitors of nitric oxide.
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0consistent with an important role for nadph oxidase although macrophages derived from wild type mice expressed enhanced levels of tissue factor upon stimulation with age macrophages derived from mice deficient in a central subunit of nadph oxidase gp9
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0 although macrophages derived from wild type mice expressed enhanced levels of tissue factor upon stimulation with age macrophages derived from mice deficient in a central subunit of nadph oxidase gp91phox failed to display enhanced tissue factor in the presence of age.
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0these findings underscore a central role of nadph oxidase in age rage mediated generation of ros and provide a mechanism for altered gene expression in age related disorders.
914B2Mbeta-2-microglobulinbeta 2 microglobulin1.0a key consequence of the interaction of ages either those prepared in vitro such as age or cml modified adducts of proteins or those formed endogenously in vivo such as age beta 2 microglobulin ages formed on the surface of diabetic red blood cells or ages immunoisolated from the serum of patients with diabetes or renal failure with rage is the generation of reactive oxygen intermediates ro
12663VCAM1vascular cell adhesion molecule 1vascular cell adhesion molecule 11.0raction resulted in generation of thiobarbituric acid reactive substances tbars increased mrna for heme oxygenase 1 enhanced nuclear translocation of nf kappab and increased endothelial expression of vascular cell adhesion molecule 1 vcam 1 and endothelial permeability 44 51 52 56 .
5013HMOX1heme oxygenase (decycling) 1heme oxygenase 11.0in vitro and/or in vivo age rage interaction resulted in generation of thiobarbituric acid reactive substances tbars increased mrna for heme oxygenase 1 enhanced nuclear translocation of nf kappab and increased endothelial expression of vascular cell adhesion molecule 1 vcam 1 and endothelial permeability 44 51 52 56 .
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0here we tested the hypothesis that activation of nadph oxidase by age rage interaction contributed at least in part to the generation of rois and initiation of a cascade of signal transduction events leading to altered gene expression in the cellular microenviro
1516CATcatalasecatalase1.0where indicated superoxide dismutase sod; 300 u/ml; sigma catalase 100 u/ml; sigma probucol 50 microm; sigma or n acetylcysteine nac; 0.03 m; sigma was added to the incubation buffer.
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))superoxide dismutase1.0where indicated superoxide dismutase sod; 300 u/ml; sigma catalase 100 u/ml; sigma probucol 50 microm; sigma or n acetylcysteine nac; 0.03 m; sigma was added to the incubation buffer.
1516CATcatalasecatalase1.0iators were co incubated with diphenyliodonium chloride 31 dpi; 5 microm; alexis san diego ca n monomethyl l arginine l nmma; 0.001 m; alexis rat srage 60 microg/ml probucol 50 microm sod 300 u/ml or catalase 100 u/ml .
19986CYCScytochrome c, somaticcytochrome c1.0confluent huvec in 35 mm plastic dishes were incubated in phenol free medium 199 0.5 ml; life technologies containing cytochrome c 160 microm; sigma .
19986CYCScytochrome c, somaticcytochrome c1.0tion of superoxide in nanomoles was calculated as d absorbance at 550 nm _amp_#215; 100 /6.3 where d absorbance is calculated as the difference between the absorbance of reduced and oxidized forms of cytochrome c .
3528F10coagulation factor Xfactor xa1.0procoagulant activity was assessed by an amydolytic assay using a factor xa specific chromogenic substrate cbs 31 39 stago asni_amp_egrave;res france according to previously published methods 36 .
3528F10coagulation factor Xfactor xa1.0for each plate a standard curve from 0 to 1 mu of purified human factor xa/well was established.
2578CYBBcytochrome b-245, beta polypeptide (chronic granulomatous disease)gp91 phox1.0male gp91 phox null mice backcrossed 11 generations into the c57bl/6 background were a generous gift from dr. mary dinauer indiana university school of medicine indianapolis in 17 35 .
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0to test the concept that nadph oxidase was a central target of age rage interaction in the cellular milieu by which rois were generated within the cell we studied the effects of ages on rage bearing huvec and in vivo derived murine macrop
1516CATcatalasecatalase1.0antioxidants including catalase sod probucol and nac inhibited drbc mediated generation of roi in the extracellular milieu fig 1 a .
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0these effects of drbc were inhibited in the presence of srage and by dpi the latter strongly suggestive of a role for nadph oxidase in generation of intracellular roi fig 1 b .
1516CATcatalasecatalase1.0however the antioxidants catalase and sod were without significant effect on drbc mediated generation of intracellular h 2 o 2 consistent with their inability to penetrate living cells.
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0these findings highlight the contribution of a specific pathway activation of nadph oxidase by which age mediated generation of rois and triggering of signal transduction events lead to altered gene expression in ec and macrophages via rage.
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0although dpi may inhibit other flavoprotein dehydrogenases in addition to nadph oxidase 26 31 our observations that hmap another inhibitor of nadph oxidase 42 similarly suppresses age mediated generation of rois and the finding that enhanced activity of tf in age stimulated macrophages retrieved from gp91 null mice was suppressed compared with wild type
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0f rois and the finding that enhanced activity of tf in age stimulated macrophages retrieved from gp91 null mice was suppressed compared with wild type macrophages strongly suggest important roles for nadph oxidase in age mediated processes.
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0importantly recent studies indicating that endothelial cells express a gp91phox containing nadph oxidase 8 support our hypothesis that activation of this enzyme provides a source of roi upon age engagement of rage in ec.
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0 8 it was shown that nadph oxidase was a major source of roi generation in the arterial wall because its activation was associated with impaired bioavailability of endothelium derived no.
4983HMGB1high-mobility group box 1amphoterin1.0previous studies further indicated that rage was likely a receptor for amphoterin a molecule linked to neurite outgrowth in developing neurons of the central and peripheral nervous system 12 .
4983HMGB1high-mobility group box 1amphoterin1.0these studies suggested that amphoterin rage was linked to cellular migration and invasiveness.
4983HMGB1high-mobility group box 1amphoterin1.0consistent with this concept the expression of amphoterin and rage is increased in murine and human tumors.
4983HMGB1high-mobility group box 1amphoterin1.0consistent with an important role for rage mediated signal transduction in these processes blockade of rage/rage signaling on amphoterin coated matrices suppressed activation of p44/42 p38 and stress activated and c jun nh 2 terminal protein kinases 50 .
6204JUNjun oncogenec jun1.0h an important role for rage mediated signal transduction in these processes blockade of rage/rage signaling on amphoterin coated matrices suppressed activation of p44/42 p38 and stress activated and c jun nh 2 terminal protein kinases 50 .
11892TNFtumor necrosis factor (TNF superfamily, member 2)tumor necrosis factor alpha1.0at the cell surface endothelium stimulated by a range of mediators such as lipoprotein lipase tumor necrosis factor alpha ages and enrages for example displays increased adhesion of proinflammatory mononuclear cells at least in part via vcam 1.
6677LPLlipoprotein lipaselipoprotein lipase1.0at the cell surface endothelium stimulated by a range of mediators such as lipoprotein lipase tumor necrosis factor alpha ages and enrages for example displays increased adhesion of proinflammatory mononuclear cells at least in part via vcam 1.
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0 that the proinflammatory effects of vcam 1 are not limited to cellular adhesion events as binding of ligand to vcam 1 in endothelial cell lines and primary cultures induced activation of endothelial nadph oxidase a process shown to be essential for lymphocyte migration through the stimulated cells 24 .
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0these findings suggest that activation of rage at the cell surface may initiate a cascade of events including activation of nadph oxidase and a range of proinflammatory mediators such as vcam 1.
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0finally it is essential to consider that ligand induced activation of rage results in generation of rois by routes other than nadph oxidase in distinct milieu.
12805XDHxanthine dehydrogenasexanthine oxidase1.0for example additional potential sources of rage mediated roi include activation of the mitochondrial respiratory chain microsomal enzymes xanthine oxidase and arachidonic acid pathways 7 47 49 54 .
613APOEapolipoprotein Eapolipoprotein e1.0consistent with the concept that multiple sources of pathogenic roi exist in the cellular microenvironment it was not surprising that breeding of gp91phox null mice with mice deficient in apolipoprotein e did not inhibit or suppress atherosclerosis 15 .
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0although the present studies support the concept that activated nadph oxidase is a central target of rage and that rois generated by this mechanism may significantly impact on cellular properties a challenge of future work will be to determine the potential contribution of dis
1516CATcatalasecatalase1.0where indicated drbc were incubated in the presence or absence of the soluble receptor for advanced glycation end products srage; 60 microg/ml superoxide dismutase sod; 300 u/ml catalase 100 u/ml probucol 50 microm or n acetylcysteine nac; 0.03 m .
11179SOD1superoxide dismutase 1, soluble (amyotrophic lateral sclerosis 1 (adult))superoxide dismutase1.0where indicated drbc were incubated in the presence or absence of the soluble receptor for advanced glycation end products srage; 60 microg/ml superoxide dismutase sod; 300 u/ml catalase 100 u/ml probucol 50 microm or n acetylcysteine nac; 0.03 m .
1516CATcatalasecatalase1.0where indicated drbc were incubated in the presence or absence of rat srage 60 microg/ml catalase 100 u/ml sod 300 u/ml probucol 50 microm diphenyliodonium chloride dpi; 5 microm or n monomethyl l arginine l nmma; 0.001 m .
12663VCAM1vascular cell adhesion molecule 1vascular cell adhesion molecule 11.0incubation of huvec with drbc a or cml modified adducts b enhances cell surface expression of vascular cell adhesion molecule 1 vcam 1 .
3528F10coagulation factor Xfactor xa1.0procoagulant activity was assessed by an amydolytic assay using a factor xa specific chromogenic substrate as described in text.
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0nadph oxidase is required for age mediated enhanced tissue factor activity in murine macrophages mps .
3528F10coagulation factor Xfactor xa1.0procoagulant activity was assessed by an amydolytic assay by use of a factor xa specific chromogenic substrate as described in text.
399ALBalbuminalbumin1.0our previous studies suggested that incubation of huvec with age albumin or ages immunoisolated from the plasma of patients with diabetes resulted in increased transcription and translation of vcam 1 44 .
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0strongly suggestive of a role for activation of nadph oxidase was the finding that marked suppression of drbc mediated expression of vcam 1 resulted in the presence of dpi fig 2 a .
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0in addition preincubation of the monolayers with dpi and another inhibitor of nadph oxidase hmap 42 resulted in suppression of the effects of cml ova fig 2 b .
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0to determine whether the observed effects of ages were due at least in part to activation of nadph oxidase we tested the concept that in murine macrophages lacking a critical component of nadph oxidase gp91 the effects of age would be abrogated.
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0consistent with an important role for nadph oxidase in mediating the effects of age rage macrophages retrieved from gp91 null mice displayed complete inhibition of age induced tf activity fig 4 .