Document Information


PMID 17532345  (  )
Title Regulation of LPS stimulated ROS production in peritoneal macrophages from alloxan-induced diabetic rats: involvement of high glucose and PPARgamma.
Abstract An increased occurrence of long term bacterial infections is common in diabetic patients. Bacterial cell wall components are described as the main antigenic agents from these microorganisms and high blood glucose levels are suggested to be involved in altered immune response. Hyperglycemia is reported to alter macrophages response to lipopolysaccharide (LPS) and peroxisome proliferators activated receptor gamma (PPARgamma) expression. Additionally, glucose is the main metabolic fuel for reduced nicotinamide adenine dinucleotide phosphate (NADPH) production by pentose phosphate shunt. In this work, lipopolysaccharide (LPS) stimulated reactive oxygen species (ROS) and nitrite production were evaluated in peritoneal macrophages from alloxan-induced diabetic rats. Cytosolic dehydrogenases and PPARgamma expression were also investigated. LPS was ineffective to stimulate ROS and nitrite production in peritoneal macrophages from diabetic rats, which presented increased glucose-6-phosphate dehydrogenase and malate dehydrogenase activity. In RAW 264.7 macrophages, acute high glucose treatment abolished LPS stimulated ROS production, with no effect on nitrite and dehydrogenase activities. Peritoneal macrophages from alloxan-treated rats presented reduced PPARgamma expression. Treating RAW 264.7 macrophages with a PPARgamma antagonist resulted in defective ROS production in response to LPS, however, stimulated nitrite production was unaltered. In conclusion, in the present study we have reported reduced nitric oxide and reactive oxygen species production in LPS-treated peritoneal macrophages from alloxan-induced diabetic rats. The reduced production of reactive oxygen species seems to be dependent on elevated glucose levels and reduced PPARgamma expression. lzfsouza@yahoo.com.br

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Targets by SciMiner Summary

HUGO ID Symbol Target Name #Occur ActualStr
4057G6PDglucose-6-phosphate dehydrogenase17glucose 6 phosphate dehydrogenase g6pd | G6PD |
6971MDH2malate dehydrogenase 2, NAD (mitochondrial)8MDH |
9236PPARGperoxisome proliferator-activated receptor gamma6PPAR-G |
5382IDH1isocitrate dehydrogenase 1 (NADP+), soluble6IDH |
6983ME1malic enzyme 1, NADP(+)-dependent, cytosolic4malate dehydrogenase |
5962IL10interleukin 104IL-10 | il 10 |
6081INSinsulin4insulin |
2577CYBAcytochrome b-245, alpha polypeptide4p22 phox |
7873NOS2Anitric oxide synthase 2A (inducible, hepatocytes)3iNOS | nitric oxide synthase |
5991IL1Ainterleukin 1, alpha3interleukin 1 |
5385IDH3Bisocitrate dehydrogenase 3 (NAD+) beta3isocitrate dehydrogenase |
7661NCF2neutrophil cytosolic factor 2 (65kDa, chronic granulomatous disease, autosomal 2)2p67 phox |
2578CYBBcytochrome b-245, beta polypeptide (chronic granulomatous disease)2gp91 phox |
9232PPARAperoxisome proliferator-activated receptor alpha2PPARs |
11892TNFtumor necrosis factor (TNF superfamily, member 2)2tumor necrosis factor | TNF-A |
14874NOX5NADPH oxidase, EF-hand calcium binding domain 52nadph oxidase |
5969IL12Ainterleukin 12A (natural killer cell stimulatory factor 1, cytotoxic lymphocyte maturation factor 1, p35)1interleukin 12 |
4623GSRglutathione reductase1glutathione reductase |
6025IL8interleukin 81interleukin 8 |
9801RAC1ras-related C3 botulinum toxin substrate 1 (rho family, small GTP binding protein Rac1)1Rac1 |
7662NCF4neutrophil cytosolic factor 4, 40kDa1p40 |
7660NCF1neutrophil cytosolic factor 1, (chronic granulomatous disease, autosomal 1)1p47 |

 


Targets by SciMiner Full list

HUGO ID Symbol Name ActualStr Score FlankingText
7660NCF1neutrophil cytosolic factor 1, (chronic granulomatous disease, autosomal 1)p470.3phox and p22 phox in the plasma membrane and subunits p47 phox /p67 p67 phox /p40 p40 phox in the cytosol
7662NCF4neutrophil cytosolic factor 4, 40kDap400.3plasma membrane and subunits p47 phox /p67 p67 phox /p40 p40 phox in the cytosol as a complex
2577CYBAcytochrome b-245, alpha polypeptidep220.0are in different subcellular compartments with subunits gp91 phox and p22 phox in the plasma membrane and subunits p47 phox /p67
7661NCF2neutrophil cytosolic factor 2 (65kDa, chronic granulomatous disease, autosomal 2)p670.2phox in the plasma membrane and subunits p47 phox /p67 p67 phox /p40 p40 phox in the cytosol as a complex
9801RAC1ras-related C3 botulinum toxin substrate 1 (rho family, small GTP binding protein Rac1)Rac10.0as LPS the cytosolic components and the small GTPase Rac1/Rac2 Rac1 Rac2 translocate to the plasma membrane binding to gp91 phox
2577CYBAcytochrome b-245, alpha polypeptidep220.0translocate to the plasma membrane binding to gp91 phox and p22 phox and initiating superoxide production by transferring one electron from
7873NOS2Anitric oxide synthase 2A (inducible, hepatocytes)iNOS2.2In stimulated macrophages inducible nitric oxide synthase (iNOS) iNOS accounts for increased nitric oxide production which is NADPH dependent
4057G6PDglucose-6-phosphate dehydrogenaseG6PD1.6sustained by NADP dependent cytosolic dehydrogenases named glucose-6-phosphate dehydrogenase (G6PD), G6PD isocitrate dehydrogenase (IDH) IDH and malate dehydrogenase (MDH) MDH
5382IDH1isocitrate dehydrogenase 1 (NADP+), solubleIDH0.9cytosolic dehydrogenases named glucose-6-phosphate dehydrogenase (G6PD), G6PD isocitrate dehydrogenase (IDH) IDH and malate dehydrogenase (MDH) MDH
6971MDH2malate dehydrogenase 2, NAD (mitochondrial)MDH0.9(G6PD), G6PD isocitrate dehydrogenase (IDH) IDH and malate dehydrogenase (MDH) MDH
4057G6PDglucose-6-phosphate dehydrogenaseG6PD1.6Impaired NADPH production by reduced G6PD activity is associated with augmented IL-10 production and redox dependent
5962IL10interleukin 10IL-101.3NADPH production by reduced G6PD activity is associated with augmented IL-10 production and redox dependent signaling in mouse peritoneal macrophages (
9232PPARAperoxisome proliferator-activated receptor alphaPPARs2.2Peroxisome proliferator-activated receptors (PPARs) PPARs are ligand-activated nuclear hormone receptors that have pleiotropic immune modulating
9232PPARAperoxisome proliferator-activated receptor alphaPPARs2.2( Sartippour and Renier 2000 showed that PPARs expression are regulated in macrophages by increased glucose
9236PPARGperoxisome proliferator-activated receptor gammaPPAR-G2.22 _amp_#xd7 10 6 cells for cellular dehydrogenase activities and PPAR-_amp_#x3b3 expression at a density of 1 _amp_#xd7 10 6 cells/ml
4057G6PDglucose-6-phosphate dehydrogenaseG6PD1.6-Glucose-6-phosphate dehydrogenase (G6PD): G6PD Tris-HCl 50_amp_#xa0 mM MgCl 2 3_amp_#xa0 mM NADP 0.2_amp_#xa0 mM
5382IDH1isocitrate dehydrogenase 1 (NADP+), solubleIDH0.9-Isocitrate dehydrogenase (IDH): IDH Tris-HCl 80_amp_#xa0 mM MgCl 2 2_amp_#xa0 mM NADP 2_amp_#xa0 mM
6971MDH2malate dehydrogenase 2, NAD (mitochondrial)MDH0.9-Malate dehydrogenase (MDH): MDH Tris-HCl 50_amp_#xa0 mM MgCl 2 1_amp_#xa0 mM NADP 0.5_amp_#xa0 mM
4057G6PDglucose-6-phosphate dehydrogenaseG6PD1.6Glucose-6-phosphate dehydrogenase (G6PD), G6PD isocitrate dehydrogenase (IDH) IDH and malate dehydrogenase (MDH) MDH are
5382IDH1isocitrate dehydrogenase 1 (NADP+), solubleIDH0.9Glucose-6-phosphate dehydrogenase (G6PD), G6PD isocitrate dehydrogenase (IDH) IDH and malate dehydrogenase (MDH) MDH are essential for the maintenance
6971MDH2malate dehydrogenase 2, NAD (mitochondrial)MDH0.9(G6PD), G6PD isocitrate dehydrogenase (IDH) IDH and malate dehydrogenase (MDH) MDH are essential for the maintenance of cellular NADPH levels
4057G6PDglucose-6-phosphate dehydrogenaseG6PD1.6In peritoneal macrophages from alloxan-treated animals G6PD and MDH activities were increased compared to the normal group
6971MDH2malate dehydrogenase 2, NAD (mitochondrial)MDH0.9In peritoneal macrophages from alloxan-treated animals G6PD and MDH activities were increased compared to the normal group ( Table
5382IDH1isocitrate dehydrogenase 1 (NADP+), solubleIDH0.9the normal group ( Table 2 however no alteration in IDH activity was observed (data data not shown
4057G6PDglucose-6-phosphate dehydrogenaseG6PD1.6G6PD IDH and MDH are essential for the maintenance of cellular
5382IDH1isocitrate dehydrogenase 1 (NADP+), solubleIDH0.9G6PD IDH and MDH are essential for the maintenance of cellular NADPH
6971MDH2malate dehydrogenase 2, NAD (mitochondrial)MDH0.9G6PD IDH and MDH are essential for the maintenance of cellular NADPH levels and
4057G6PDglucose-6-phosphate dehydrogenaseG6PD1.6cellular NADPH levels and an impaired NADPH production by reduced G6PD activity is associated with augmented IL-10 production in mouse peritoneal
5962IL10interleukin 10IL-101.3NADPH production by reduced G6PD activity is associated with augmented IL-10 production in mouse peritoneal macrophages ( Wilmanski et al. 2005
5382IDH1isocitrate dehydrogenase 1 (NADP+), solubleIDH0.9IDH activity has been described to be involved in redox buffering
4057G6PDglucose-6-phosphate dehydrogenaseG6PD1.6In peritoneal macrophages from alloxan-treated rats increased G6PD and MDH activities were observed but no alteration of cytosolic
6971MDH2malate dehydrogenase 2, NAD (mitochondrial)MDH0.9In peritoneal macrophages from alloxan-treated rats increased G6PD and MDH activities were observed but no alteration of cytosolic dehydrogenases was
4057G6PDglucose-6-phosphate dehydrogenaseG6PD1.6acute effects of glucose altered concentration are not involved in G6PD and MDH regulation
6971MDH2malate dehydrogenase 2, NAD (mitochondrial)MDH0.9of glucose altered concentration are not involved in G6PD and MDH regulation
4057G6PDglucose-6-phosphate dehydrogenaseG6PD1.6Future investigation is necessary to address the role of altered G6PD and MDH activities on altered nitrite production observed in peritoneal
6971MDH2malate dehydrogenase 2, NAD (mitochondrial)MDH0.9is necessary to address the role of altered G6PD and MDH activities on altered nitrite production observed in peritoneal macrophages from
9236PPARGperoxisome proliferator-activated receptor gammaPPAR-G2.2development of diabetes could be involved in this downregulation of PPAR-_amp_#x3b3 expression
11892TNFtumor necrosis factor (TNF superfamily, member 2)TNF-A1.2by alloxan treatment there is the increased plasmatic concentration of TNF-_amp_#x3b1 ( Ptak et al. 1998
9236PPARGperoxisome proliferator-activated receptor gammaPPAR-G2.2Fig 3._amp_#xa0 PPAR-_amp_#x3b3 expression in peritoneal macrophages from normal and alloxan-treated rats
9236PPARGperoxisome proliferator-activated receptor gammaPPAR-G2.2Thirty days after peritoneal macrophages were isolated and PPAR-_amp_#x3b3 expression measured as described in Materials and methods
9236PPARGperoxisome proliferator-activated receptor gammaPPAR-G2.2Values are mean _amp_#xb1 SD of the ratio between PPAR-_amp_#x3b3 and _amp_#x3b2 -actin bands in arbitrary units ( n =
9236PPARGperoxisome proliferator-activated receptor gammaPPAR-G2.2264.7 macrophages were incubated or not for 2_amp_#xa0 h with PPAR-_amp_#x3b3 antagonist GW9662 (10_amp_#xa0;_amp_#x3bc;M) 10_amp_#xa0 _amp_#x3bc M
6983ME1malic enzyme 1, NADP(+)-dependent, cytosolicmalate dehydrogenase1.0lps was ineffective to stimulate ros and nitrite production in peritoneal macrophages from diabetic rats which presented increased glucose 6 phosphate dehydrogenase and malate dehydrogenase activity.
4057G6PDglucose-6-phosphate dehydrogenaseglucose 6 phosphate dehydrogenase1.0lps was ineffective to stimulate ros and nitrite production in peritoneal macrophages from diabetic rats which presented increased glucose 6 phosphate dehydrogenase and malate dehydrogenase activity.
5991IL1Ainterleukin 1, alphainterleukin 11.0it was suggested that high blood glucose levels are involved in reduced bactericidal activity nielson and hindson 1989 and it has further been demonstrated that high glucose reduces interleukin 1 release from murine macrophages hill et al. 1998 .
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0nicotinamide adenine dinucleotide phosphate nadph oxidase is expressed by phagocytes and is involved in superoxide production for antimicrobial activity.
2577CYBAcytochrome b-245, alpha polypeptidep22 phox1.0in non stimulated cells nadph oxidase components are in different subcellular compartments with subunits gp91 phox and p22 phox in the plasma membrane and subunits p47 phox /p67 phox /p40 phox in the cytosol as a complex.
7661NCF2neutrophil cytosolic factor 2 (65kDa, chronic granulomatous disease, autosomal 2)p67 phox1.0in non stimulated cells nadph oxidase components are in different subcellular compartments with subunits gp91 phox and p22 phox in the plasma membrane and subunits p47 phox /p67 phox /p40 phox in the cytosol as a complex.
2578CYBBcytochrome b-245, beta polypeptide (chronic granulomatous disease)gp91 phox1.0in non stimulated cells nadph oxidase components are in different subcellular compartments with subunits gp91 phox and p22 phox in the plasma membrane and subunits p47 phox /p67 phox /p40 phox in the cytosol as a complex.
14874NOX5NADPH oxidase, EF-hand calcium binding domain 5nadph oxidase1.0in non stimulated cells nadph oxidase components are in different subcellular compartments with subunits gp91 phox and p22 phox in the plasma membrane and subunits p47 phox /p67 phox /p40 phox in the cytosol as a complex.
2577CYBAcytochrome b-245, alpha polypeptidep22 phox1.0upon phagocytosis or stimulation with soluble agents such as lps the cytosolic components and the small gtpase rac1/rac2 translocate to the plasma membrane binding to gp91 phox and p22 phox and initiating superoxide production by transferring one electron from nadph to oxygen [forman and torres 2001] and [decoursey and ligeti 2005] .
2578CYBBcytochrome b-245, beta polypeptide (chronic granulomatous disease)gp91 phox1.0upon phagocytosis or stimulation with soluble agents such as lps the cytosolic components and the small gtpase rac1/rac2 translocate to the plasma membrane binding to gp91 phox and p22 phox and initiating superoxide production by transferring one electron from nadph to oxygen [forman and torres 2001] and [decoursey and ligeti 2005] .
7873NOS2Anitric oxide synthase 2A (inducible, hepatocytes)nitric oxide synthase1.0nitric oxide is synthesized from l arginine by nitric oxide synthase using nadph as a cofactor.
7873NOS2Anitric oxide synthase 2A (inducible, hepatocytes)nitric oxide synthase1.0in stimulated macrophages inducible nitric oxide synthase inos accounts for increased nitric oxide production which is nadph dependent forstermann and kleinert 1995 .
6983ME1malic enzyme 1, NADP(+)-dependent, cytosolicmalate dehydrogenase1.0nadph is an essential cellular coenzyme and its level is sustained by nadp + dependent cytosolic dehydrogenases named glucose 6 phosphate dehydrogenase g6pd isocitrate dehydrogenase idh and malate dehydrogenase mdh .
5385IDH3Bisocitrate dehydrogenase 3 (NAD+) betaisocitrate dehydrogenase1.0nadph is an essential cellular coenzyme and its level is sustained by nadp + dependent cytosolic dehydrogenases named glucose 6 phosphate dehydrogenase g6pd isocitrate dehydrogenase idh and malate dehydrogenase mdh .
4057G6PDglucose-6-phosphate dehydrogenaseglucose 6 phosphate dehydrogenase1.0nadph is an essential cellular coenzyme and its level is sustained by nadp + dependent cytosolic dehydrogenases named glucose 6 phosphate dehydrogenase g6pd isocitrate dehydrogenase idh and malate dehydrogenase mdh .
4057G6PDglucose-6-phosphate dehydrogenaseglucose 6 phosphate dehydrogenase g6pd1.0nadph is an essential cellular coenzyme and its level is sustained by nadp + dependent cytosolic dehydrogenases named glucose 6 phosphate dehydrogenase g6pd isocitrate dehydrogenase idh and malate dehydrogenase mdh .
5962IL10interleukin 10il 101.0impaired nadph production by reduced g6pd activity is associated with augmented il 10 production and redox dependent signaling in mouse peritoneal macrophages wilmanski et al. 2005 .
6081INSinsulininsulin1.0alloxan monohydrate injection leads to the destruction of insulin secreting _amp_#x3b2; cells of the islets of langerhans while other cells _amp_#x3b1; _amp_#x3b3; _amp_#x3b4; are resistant.
6081INSinsulininsulin1.0the destruction of the insulin secreting _amp_#x3b2; cells was brought about by a redox cycle with the formation of superoxide radicals established by alloxan and the product of its reduction dialuric acid.
4057G6PDglucose-6-phosphate dehydrogenaseglucose 6 phosphate dehydrogenase1.0 glucose 6 phosphate dehydrogenase g6pd : tris hcl 50_amp_#xa0;mm mgcl 2 3_amp_#xa0;mm nadp + 0.2_amp_#xa0;mm glucose 6 phosphate 3.2_amp_#xa0;mm ph 7 8;
4057G6PDglucose-6-phosphate dehydrogenaseglucose 6 phosphate dehydrogenase g6pd1.0 glucose 6 phosphate dehydrogenase g6pd : tris hcl 50_amp_#xa0;mm mgcl 2 3_amp_#xa0;mm nadp + 0.2_amp_#xa0;mm glucose 6 phosphate 3.2_amp_#xa0;mm ph 7 8;
5385IDH3Bisocitrate dehydrogenase 3 (NAD+) betaisocitrate dehydrogenase1.0 isocitrate dehydrogenase idh : tris hcl 80_amp_#xa0;mm mgcl 2 2_amp_#xa0;mm nadp + 2_amp_#xa0;mm sodium isocitric acid 5_amp_#xa0;mm ph 7 4;
6983ME1malic enzyme 1, NADP(+)-dependent, cytosolicmalate dehydrogenase1.0 malate dehydrogenase mdh : tris hcl 50_amp_#xa0;mm mgcl 2 1_amp_#xa0;mm nadp + 0.5_amp_#xa0;mm sodium malic acid 0.6_amp_#xa0;mm ph 7 4.
6081INSinsulininsulin1.0alloxan monohydrate injection leads to the destruction of insulin secreting _amp_#x3b2; cells in the islets of langerhans while other cells _amp_#x3b1; _amp_#x3b3; _amp_#x3b4; are resistant.
6983ME1malic enzyme 1, NADP(+)-dependent, cytosolicmalate dehydrogenase1.0glucose 6 phosphate dehydrogenase g6pd isocitrate dehydrogenase idh and malate dehydrogenase mdh are essential for the maintenance of cellular nadph levels.
5385IDH3Bisocitrate dehydrogenase 3 (NAD+) betaisocitrate dehydrogenase1.0glucose 6 phosphate dehydrogenase g6pd isocitrate dehydrogenase idh and malate dehydrogenase mdh are essential for the maintenance of cellular nadph levels.
4057G6PDglucose-6-phosphate dehydrogenaseglucose 6 phosphate dehydrogenase1.0glucose 6 phosphate dehydrogenase g6pd isocitrate dehydrogenase idh and malate dehydrogenase mdh are essential for the maintenance of cellular nadph levels.
4057G6PDglucose-6-phosphate dehydrogenaseglucose 6 phosphate dehydrogenase g6pd1.0glucose 6 phosphate dehydrogenase g6pd isocitrate dehydrogenase idh and malate dehydrogenase mdh are essential for the maintenance of cellular nadph levels.
5969IL12Ainterleukin 12A (natural killer cell stimulatory factor 1, cytotoxic lymphocyte maturation factor 1, p35)interleukin 121.0increased glucose is described to be involved in some alterations of macrophages responses in diabetic animal models including interleukin 12 expression wen et al. 2006 and upregulation of cyclooxygenase ii leading to increased prostaglandin e 2 production lo 2005 .
5991IL1Ainterleukin 1, alphainterleukin 11.0ros are involved in tumor necrosis factor _amp_#x3b1; haddad and land 2002 ; interleukin 8 ryan et al. 2004 and interleukin 1 _amp_#x3b2; hsu and wen 2002 production in lps stimulated macrophages.
6025IL8interleukin 8interleukin 81.0ros are involved in tumor necrosis factor _amp_#x3b1; haddad and land 2002 ; interleukin 8 ryan et al. 2004 and interleukin 1 _amp_#x3b2; hsu and wen 2002 production in lps stimulated macrophages.
11892TNFtumor necrosis factor (TNF superfamily, member 2)tumor necrosis factor1.0ros are involved in tumor necrosis factor _amp_#x3b1; haddad and land 2002 ; interleukin 8 ryan et al. 2004 and interleukin 1 _amp_#x3b2; hsu and wen 2002 production in lps stimulated macrophages.
5991IL1Ainterleukin 1, alphainterleukin 11.0taking into account that increased glucose levels are described to reduce interleukin 1 release from lps treated macrophages hill et al. 1998 defective ros stimulation by lps could be involved in altered cytokine production from macrophages in hyperglycemia and diabetes.
6081INSinsulininsulin1.0it was suggested that defective insulin signaling leads to altered nitric oxide production in stimulated macrophages stevens et al. 1997 but how this could be involved in alloxan induced alterations remains to be addressed.
5962IL10interleukin 10il 101.0g6pd idh and mdh are essential for the maintenance of cellular nadph levels and an impaired nadph production by reduced g6pd activity is associated with augmented il 10 production in mouse peritoneal macrophages wilmanski et al. 2005 .
4623GSRglutathione reductaseglutathione reductase1.0idh activity has been described to be involved in redox buffering maintaining nadph levels for antioxidant enzymes as glutathione reductase maeng et al. 2004 .