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Gene Information

Gene symbol: GCLC

Gene name: glutamate-cysteine ligase, catalytic subunit

HGNC ID: 4311

Synonyms: GCS

Related Genes

# Gene Symbol Number of hits
1 AKT1 1 hits
2 ALB 1 hits
3 BACH1 1 hits
4 BIRC3 1 hits
5 CAT 1 hits
6 CCL2 1 hits
7 G6PD 1 hits
8 GAD2 1 hits
9 GAST 1 hits
10 GCA 1 hits
11 GCG 1 hits
12 GCLM 1 hits
13 GSR 1 hits
14 GSS 1 hits
15 HMOX1 1 hits
16 IL8 1 hits
17 INS 1 hits
18 INSR 1 hits
19 MAFK 1 hits
20 NFE2 1 hits
21 NFE2L2 1 hits
22 NFKB1 1 hits
23 NOS2A 1 hits
24 NQO1 1 hits
25 PIK3CA 1 hits
26 RORC 1 hits
27 SLC7A11 1 hits
28 SOD1 1 hits
29 TNF 1 hits
30 TNR 1 hits

Related Sentences

# PMID Sentence
1 7608958 Predisposing factors included operative procedures in GAS and GCS bacteraemia, and diabetes mellitus in GBS bacteraemia.
2 7608958 The mortality rates in GAS, GCS, GGS, and adult GBS bacteraemia were 23%, 16%, 17% and 19%, respectively.
3 7608958 Predisposing factors included operative procedures in GAS and GCS bacteraemia, and diabetes mellitus in GBS bacteraemia.
4 7608958 The mortality rates in GAS, GCS, GGS, and adult GBS bacteraemia were 23%, 16%, 17% and 19%, respectively.
5 7651354 Specifically, the addition of insulin or hydrocortisone to culture media or the lowering of the initial plating cell density increased cell GSH by increasing the activity of GCS.
6 7713315 In order to elucidate the physiological significance and the regulation of anti-oxidants in diabetic patients, changes in the activity of the glutathione-synthesizing enzyme, gamma-glutamylcysteine synthetase, and transport of thiol [S-(2,4-dinitrophenyl)glutathione] were studied in erythrocytes from patients with non-insulin-dependent diabetes and K562 cells cultured with 27 mmol/l glucose for 7 days.
7 8662965 Long exposure to high glucose concentration impairs the responsive expression of gamma-glutamylcysteine synthetase by interleukin-1beta and tumor necrosis factor-alpha in mouse endothelial cells.
8 8662965 Exposing normoglycemic endothelial cells to tumor necrosis factor-alpha (TNF-alpha) or interleukin-1beta (IL-1beta) increased the activity and the mRNA expression of gamma-GCS.
9 8662965 The addition of inhibitors for nuclear factor kappaB (NF-kappaB) to the cells caused a loss of the gamma-GCS mRNA expression in response to TNF-alpha.
10 8662965 These cells showed no apparent responses of gamma-GCS mRNA or the activity of NF-kappaB to TNF-alpha or IL-beta.
11 8662965 In summary, the expression of gamma-GCS is regulated by TNF-alpha or IL-1beta in endothelial cells mediated by NF-kappaB stimulation, and impairment of the regulation of gamma-GCS in hyperglycemic cells may be a cause of medical complications that develop in diabetes mellitus.
12 9621289 To test whether the growth phenotype of cells from patients with diabetic nephropathy was related to a lack of protection from oxidative stress, the effect of reduced glutathione (GSH) on cultured skin fibroblasts from 13 insulin-dependent diabetes mellitus (IDDM) patients with nephropathy (DN), 10 IDDM patients without kidney disease (D), and 10 nondiabetic control subjects (C), in normal (5 mM) glucose (NG) and high (22 mM) glucose (HG) medium was studied.
13 9621289 The treatment of fibroblasts from D and C with the inhibitor of the gamma-glutamylcysteine synthetase activity, L-buthionine-S,R-sulfoximine, resulted in growth impairment, and the addition to the culture medium of another antioxidant, superoxide dismutase, corrected the growth abnormalities in fibroblasts from DN.
14 9621289 The impaired growth of cultured fibroblasts from IDDM patients with nephropathy is prevented by GSH and superoxide dismutase and is independent of prevailing glucose concentrations.
15 11744330 These changes are accompanied by increased expression of NF-kappaB-related genes, gamma-glutamylcysteine synthetase, inhibitor of apoptosis protein-1 (IAP-1), and inducible nitric oxide synthase (iNOS).
16 12147223 Here, we show that adducts of N(epsilon)-(carboxymethyl)lysine (CML), a major AGE, and bovine serum albumin (CML-BSA) stimulated gamma-glutamylcysteine synthetase (gamma-GCS), which is a key enzyme of glutathione (GSH) synthesis, in RAW264.7 mouse macrophage-like cells.
17 12147223 CML-BSA also stimulated DNA-binding activity of activator protein-1 (AP-1) within 3h, but the stimulatory effect decreased in 5h, and nuclear factor-kappaB (NF-kappaB) with a peak activity at 1h and the stimulatory effect diminished in 3h.
18 12147223 CML-BSA also stimulated the activity of protein kinase C, Ras/Raf-1, and MEK/ERK1/2.
19 12147223 Inhibition of ERK1/2 abolished CML-BSA-stimulated AP-1 DNA-binding activity and gamma-GCSh mRNA expression.
20 12846446 To investigate the effect of GSH content on insulin gene expression, we utilized a stable transfectant, designated as ribo-MIN6 cells, which were stably transfected with the ribozyme of gamma-glutamylcysteine synthetase (gamma-GCS), exhibiting approximately 50% reduction of intracellular GSH content.
21 14988435 The synthesis of GSH from glutamate, cysteine, and glycine is catalyzed sequentially by two cytosolic enzymes, gamma-glutamylcysteine synthetase and GSH synthetase.
22 15573148 The effect on GSH was not associated with any change in either synthesis or recycling, as both gamma-glutamylcysteine synthetase gene expression (responsible for bio syn thesis) and glutathione reductase activity (involved with GSH recycling) remained unchanged.
23 15966976 These analyses showed no significant differences between GAS and GCS infections.
24 17056675 Four weeks after injection of streptozotocin, mean GSH concentration ([GSH]) in isolated diabetic rat myocytes was approximately 36% less than in control, correlating with decreased activities of two major enzymes regulating GSH levels: glutathione reductase and gamma-glutamylcysteine synthetase.
25 17056675 Inhibitor experiments indicated that insulin normalized [GSH] via the pentose pathway and gamma-glutamylcysteine synthetase, although the basal activity of glucose-6-phosphate dehydrogenase was not different between diabetic and control hearts.
26 17056675 Four weeks after injection of streptozotocin, mean GSH concentration ([GSH]) in isolated diabetic rat myocytes was approximately 36% less than in control, correlating with decreased activities of two major enzymes regulating GSH levels: glutathione reductase and gamma-glutamylcysteine synthetase.
27 17056675 Inhibitor experiments indicated that insulin normalized [GSH] via the pentose pathway and gamma-glutamylcysteine synthetase, although the basal activity of glucose-6-phosphate dehydrogenase was not different between diabetic and control hearts.
28 17109620 NRF2-dependent glutamate-L-cysteine ligase catalytic subunit expression mediates insulin protection against hyperglycemia- induced brain endothelial cell apoptosis.
29 17109620 Insulin stimulated glutamate-L-cysteine ligase (GCL) activity by activation of phosphatidylinositol 3-kinase (PI3K)/Akt/mTOR signaling, increased serine phosphorylation and nuclear translocation of nuclear NF-E2-related factor 2 (Nrf2), and upregulation of Nrf2-dependent GCL-catalytic (GCLc) subunit expression.
30 17109620 Expression of the GCL-modulatory subunit (GCLm) was unchanged.
31 17109620 Inhibitors of insulin receptor tyrosine kinase, PI3K, Akt and mTOR abrogated insulin-induced Nrf2-mediated GCLc expression, redox balance, and IHEC survival.
32 17109620 Activation of insulin signaling through PI3K/Akt/mTOR/Nrf2/ GCLc pathway affords significant cell protection by maintaining cellular redox balance.
33 17109620 NRF2-dependent glutamate-L-cysteine ligase catalytic subunit expression mediates insulin protection against hyperglycemia- induced brain endothelial cell apoptosis.
34 17109620 Insulin stimulated glutamate-L-cysteine ligase (GCL) activity by activation of phosphatidylinositol 3-kinase (PI3K)/Akt/mTOR signaling, increased serine phosphorylation and nuclear translocation of nuclear NF-E2-related factor 2 (Nrf2), and upregulation of Nrf2-dependent GCL-catalytic (GCLc) subunit expression.
35 17109620 Expression of the GCL-modulatory subunit (GCLm) was unchanged.
36 17109620 Inhibitors of insulin receptor tyrosine kinase, PI3K, Akt and mTOR abrogated insulin-induced Nrf2-mediated GCLc expression, redox balance, and IHEC survival.
37 17109620 Activation of insulin signaling through PI3K/Akt/mTOR/Nrf2/ GCLc pathway affords significant cell protection by maintaining cellular redox balance.
38 17109620 NRF2-dependent glutamate-L-cysteine ligase catalytic subunit expression mediates insulin protection against hyperglycemia- induced brain endothelial cell apoptosis.
39 17109620 Insulin stimulated glutamate-L-cysteine ligase (GCL) activity by activation of phosphatidylinositol 3-kinase (PI3K)/Akt/mTOR signaling, increased serine phosphorylation and nuclear translocation of nuclear NF-E2-related factor 2 (Nrf2), and upregulation of Nrf2-dependent GCL-catalytic (GCLc) subunit expression.
40 17109620 Expression of the GCL-modulatory subunit (GCLm) was unchanged.
41 17109620 Inhibitors of insulin receptor tyrosine kinase, PI3K, Akt and mTOR abrogated insulin-induced Nrf2-mediated GCLc expression, redox balance, and IHEC survival.
42 17109620 Activation of insulin signaling through PI3K/Akt/mTOR/Nrf2/ GCLc pathway affords significant cell protection by maintaining cellular redox balance.
43 17479437 Glutamate cysteine ligase catalytic subunit promoter polymorphisms and associations with type 1 diabetes age-at-onset and GAD65 autoantibody levels.
44 17479437 T1D patients and control subjects from the Swedish Childhood Diabetes Registry and the Swedish Diabetes Incidence Study registry were genotyped for two GCLC promoter polymorphisms; the GCLC -129 C to T single nucleotide polymorphism (GCLC -129 SNP) and the GCLC GAG trinucleotide repeat polymorphism (GCLC TNR).
45 17479437 In addition, T1D patients with an age-at-onset of 14-35 years possess the GCLC TNR 7/8 genotype at a lower frequency than the control subjects (OR, 0.33, 95% CI, 0.13-0.82).
46 17479437 The GCLC -129 SNP and GCLC TNR appear to be in linkage disequilibrium (p-value<0.0001).
47 17479437 Glutamate cysteine ligase catalytic subunit promoter polymorphisms and associations with type 1 diabetes age-at-onset and GAD65 autoantibody levels.
48 17479437 T1D patients and control subjects from the Swedish Childhood Diabetes Registry and the Swedish Diabetes Incidence Study registry were genotyped for two GCLC promoter polymorphisms; the GCLC -129 C to T single nucleotide polymorphism (GCLC -129 SNP) and the GCLC GAG trinucleotide repeat polymorphism (GCLC TNR).
49 17479437 In addition, T1D patients with an age-at-onset of 14-35 years possess the GCLC TNR 7/8 genotype at a lower frequency than the control subjects (OR, 0.33, 95% CI, 0.13-0.82).
50 17479437 The GCLC -129 SNP and GCLC TNR appear to be in linkage disequilibrium (p-value<0.0001).
51 17479437 Glutamate cysteine ligase catalytic subunit promoter polymorphisms and associations with type 1 diabetes age-at-onset and GAD65 autoantibody levels.
52 17479437 T1D patients and control subjects from the Swedish Childhood Diabetes Registry and the Swedish Diabetes Incidence Study registry were genotyped for two GCLC promoter polymorphisms; the GCLC -129 C to T single nucleotide polymorphism (GCLC -129 SNP) and the GCLC GAG trinucleotide repeat polymorphism (GCLC TNR).
53 17479437 In addition, T1D patients with an age-at-onset of 14-35 years possess the GCLC TNR 7/8 genotype at a lower frequency than the control subjects (OR, 0.33, 95% CI, 0.13-0.82).
54 17479437 The GCLC -129 SNP and GCLC TNR appear to be in linkage disequilibrium (p-value<0.0001).
55 17479437 Glutamate cysteine ligase catalytic subunit promoter polymorphisms and associations with type 1 diabetes age-at-onset and GAD65 autoantibody levels.
56 17479437 T1D patients and control subjects from the Swedish Childhood Diabetes Registry and the Swedish Diabetes Incidence Study registry were genotyped for two GCLC promoter polymorphisms; the GCLC -129 C to T single nucleotide polymorphism (GCLC -129 SNP) and the GCLC GAG trinucleotide repeat polymorphism (GCLC TNR).
57 17479437 In addition, T1D patients with an age-at-onset of 14-35 years possess the GCLC TNR 7/8 genotype at a lower frequency than the control subjects (OR, 0.33, 95% CI, 0.13-0.82).
58 17479437 The GCLC -129 SNP and GCLC TNR appear to be in linkage disequilibrium (p-value<0.0001).
59 18158646 It is formed in a two-step enzymatic process including, first, the formation of gamma-glutamylcysteine from glutamate and cysteine, by the activity of the gamma-glutamylcysteine synthetase; and second, the formation of GSH by the activity of GSH synthetase which uses gamma-glutamylcysteine and glycine as substrates.
60 19010315 Decreased GSH/GSSG ratios in blood, liver and kidney-cortex were accompanied by increased glutathione peroxidase and glutathione reductase activities and a diminished renal gamma-glutamylcysteine synthetase activity.
61 19463904 Glucagon-like peptide-1 (GLP-1) protects against methylglyoxal-induced PC12 cell apoptosis through the PI3K/Akt/mTOR/GCLc/redox signaling pathway.
62 19463904 Cell apoptosis, expression and phosphorylation of phosphatidylinositol-3 kinase/Akt/mammalian target of rapamycin/gamma-glutamylcysteine ligase catalytic subunit (GCLc), and redox balance were then determined.
63 19463904 GLP-1 protected against this MG-induced apoptosis, which corresponded to the phosphorylation of PI3K, Akt, and mTOR, as well as the upregulation of GCLc and the restoration of the redox imbalance.
64 19463904 Inhibitors of PI3K (LY294002), Akt (Akt-I), and mTOR (rapamycin) reduced the GLP-1-induced GCLc upregulation and its protection against MG-induced PC12 apoptosis.
65 19463904 In conclusion, the neuroprotective effect of GLP-1 is due to an enhancement of PI3K/Akt/mTOR/GCLc/redox signaling.
66 19463904 Glucagon-like peptide-1 (GLP-1) protects against methylglyoxal-induced PC12 cell apoptosis through the PI3K/Akt/mTOR/GCLc/redox signaling pathway.
67 19463904 Cell apoptosis, expression and phosphorylation of phosphatidylinositol-3 kinase/Akt/mammalian target of rapamycin/gamma-glutamylcysteine ligase catalytic subunit (GCLc), and redox balance were then determined.
68 19463904 GLP-1 protected against this MG-induced apoptosis, which corresponded to the phosphorylation of PI3K, Akt, and mTOR, as well as the upregulation of GCLc and the restoration of the redox imbalance.
69 19463904 Inhibitors of PI3K (LY294002), Akt (Akt-I), and mTOR (rapamycin) reduced the GLP-1-induced GCLc upregulation and its protection against MG-induced PC12 apoptosis.
70 19463904 In conclusion, the neuroprotective effect of GLP-1 is due to an enhancement of PI3K/Akt/mTOR/GCLc/redox signaling.
71 19463904 Glucagon-like peptide-1 (GLP-1) protects against methylglyoxal-induced PC12 cell apoptosis through the PI3K/Akt/mTOR/GCLc/redox signaling pathway.
72 19463904 Cell apoptosis, expression and phosphorylation of phosphatidylinositol-3 kinase/Akt/mammalian target of rapamycin/gamma-glutamylcysteine ligase catalytic subunit (GCLc), and redox balance were then determined.
73 19463904 GLP-1 protected against this MG-induced apoptosis, which corresponded to the phosphorylation of PI3K, Akt, and mTOR, as well as the upregulation of GCLc and the restoration of the redox imbalance.
74 19463904 Inhibitors of PI3K (LY294002), Akt (Akt-I), and mTOR (rapamycin) reduced the GLP-1-induced GCLc upregulation and its protection against MG-induced PC12 apoptosis.
75 19463904 In conclusion, the neuroprotective effect of GLP-1 is due to an enhancement of PI3K/Akt/mTOR/GCLc/redox signaling.
76 19463904 Glucagon-like peptide-1 (GLP-1) protects against methylglyoxal-induced PC12 cell apoptosis through the PI3K/Akt/mTOR/GCLc/redox signaling pathway.
77 19463904 Cell apoptosis, expression and phosphorylation of phosphatidylinositol-3 kinase/Akt/mammalian target of rapamycin/gamma-glutamylcysteine ligase catalytic subunit (GCLc), and redox balance were then determined.
78 19463904 GLP-1 protected against this MG-induced apoptosis, which corresponded to the phosphorylation of PI3K, Akt, and mTOR, as well as the upregulation of GCLc and the restoration of the redox imbalance.
79 19463904 Inhibitors of PI3K (LY294002), Akt (Akt-I), and mTOR (rapamycin) reduced the GLP-1-induced GCLc upregulation and its protection against MG-induced PC12 apoptosis.
80 19463904 In conclusion, the neuroprotective effect of GLP-1 is due to an enhancement of PI3K/Akt/mTOR/GCLc/redox signaling.
81 19463904 Glucagon-like peptide-1 (GLP-1) protects against methylglyoxal-induced PC12 cell apoptosis through the PI3K/Akt/mTOR/GCLc/redox signaling pathway.
82 19463904 Cell apoptosis, expression and phosphorylation of phosphatidylinositol-3 kinase/Akt/mammalian target of rapamycin/gamma-glutamylcysteine ligase catalytic subunit (GCLc), and redox balance were then determined.
83 19463904 GLP-1 protected against this MG-induced apoptosis, which corresponded to the phosphorylation of PI3K, Akt, and mTOR, as well as the upregulation of GCLc and the restoration of the redox imbalance.
84 19463904 Inhibitors of PI3K (LY294002), Akt (Akt-I), and mTOR (rapamycin) reduced the GLP-1-induced GCLc upregulation and its protection against MG-induced PC12 apoptosis.
85 19463904 In conclusion, the neuroprotective effect of GLP-1 is due to an enhancement of PI3K/Akt/mTOR/GCLc/redox signaling.
86 19841616 We report that curcumin dose-dependently eliminates insulin-induced HSC activation by suppressing expression of type I collagen gene and other key genes relevant to HSC activation.
87 19841616 Furthermore, curcumin attenuates insulin-induced oxidative stress in HSCs by inducing gene expression of glutamate-cysteine ligase (GCL), leading to de novo synthesis of glutathione and the suppression of gene expression of InsR.
88 20418481 Accordingly, resveratrol significantly upregulates the expression of the Nrf2 target genes NAD(P)H:quinone oxidoreductase 1, gamma-glutamylcysteine synthetase, and heme oxygenase-1.
89 20418481 The aforementioned effects of resveratrol were significantly attenuated by the small interfering RNA downregulation of Nrf2 or the overexpression of Kelch-like erythroid cell-derived protein 1, which inactivates Nrf2.
90 20418481 In HFD-fed Nrf2(+/+) mice, resveratrol treatment attenuates oxidative stress (assessed by the Amplex red assay), improves acetylcholine-induced vasodilation, and inhibits apoptosis (assessed by measuring caspase-3 activity and DNA fragmentation) in branches of the femoral artery.
91 21217061 Adaptive induction of NF-E2-related factor-2-driven antioxidant genes in endothelial cells in response to hyperglycemia.
92 21217061 Nuclear factor erythroid 2-related factor-2 (Nrf2) is a transcription factor activated by oxidative stress that regulates expression of numerous reactive oxygen species (ROS) detoxifying and antioxidant genes.
93 21217061 Using a Nrf2/antioxidant response element (ARE)-driven luciferase reporter gene assay we found that in a cultured coronary arterial endothelial cell model hyperglycemia (10-30 mmol/l glucose) significantly increases transcriptional activity of Nrf2 and upregulates the expression of the Nrf2 target genes NQO1, GCLC, and HMOX1.
94 21217061 High-glucose-induced upregulation of NQO1, GCLC, and HMOX1 was also prevented by pretreatment with polyethylene glycol (PEG)-catalase or N-acetylcysteine, whereas administration of H(2)O(2) mimicked the effect of high glucose.
95 21217061 HFD elicited significant increases in mRNA expression of Gclc and Hmox1 in aortas of Nrf2(+/+) mice, but not Nrf2(-/-) mice, compared with respective standard diet-fed control mice.
96 21217061 Adaptive induction of NF-E2-related factor-2-driven antioxidant genes in endothelial cells in response to hyperglycemia.
97 21217061 Nuclear factor erythroid 2-related factor-2 (Nrf2) is a transcription factor activated by oxidative stress that regulates expression of numerous reactive oxygen species (ROS) detoxifying and antioxidant genes.
98 21217061 Using a Nrf2/antioxidant response element (ARE)-driven luciferase reporter gene assay we found that in a cultured coronary arterial endothelial cell model hyperglycemia (10-30 mmol/l glucose) significantly increases transcriptional activity of Nrf2 and upregulates the expression of the Nrf2 target genes NQO1, GCLC, and HMOX1.
99 21217061 High-glucose-induced upregulation of NQO1, GCLC, and HMOX1 was also prevented by pretreatment with polyethylene glycol (PEG)-catalase or N-acetylcysteine, whereas administration of H(2)O(2) mimicked the effect of high glucose.
100 21217061 HFD elicited significant increases in mRNA expression of Gclc and Hmox1 in aortas of Nrf2(+/+) mice, but not Nrf2(-/-) mice, compared with respective standard diet-fed control mice.
101 21217061 Adaptive induction of NF-E2-related factor-2-driven antioxidant genes in endothelial cells in response to hyperglycemia.
102 21217061 Nuclear factor erythroid 2-related factor-2 (Nrf2) is a transcription factor activated by oxidative stress that regulates expression of numerous reactive oxygen species (ROS) detoxifying and antioxidant genes.
103 21217061 Using a Nrf2/antioxidant response element (ARE)-driven luciferase reporter gene assay we found that in a cultured coronary arterial endothelial cell model hyperglycemia (10-30 mmol/l glucose) significantly increases transcriptional activity of Nrf2 and upregulates the expression of the Nrf2 target genes NQO1, GCLC, and HMOX1.
104 21217061 High-glucose-induced upregulation of NQO1, GCLC, and HMOX1 was also prevented by pretreatment with polyethylene glycol (PEG)-catalase or N-acetylcysteine, whereas administration of H(2)O(2) mimicked the effect of high glucose.
105 21217061 HFD elicited significant increases in mRNA expression of Gclc and Hmox1 in aortas of Nrf2(+/+) mice, but not Nrf2(-/-) mice, compared with respective standard diet-fed control mice.
106 22021391 Recent studies demonstrate that age-related dysfunction of NF-E2-related factor-2 (Nrf2)-driven pathways impairs cellular redox homeostasis, exacerbating age-related cellular oxidative stress and increasing sensitivity of aged vessels to oxidative stress-induced cellular damage.
107 22021391 Circulating levels of insulin-like growth factor (IGF)-1 decline during aging, which significantly increases the risk for cardiovascular diseases in humans.
108 22021391 To test the hypothesis that adult-onset IGF-1 deficiency impairs Nrf2-driven pathways in the vasculature, we utilized a novel mouse model with a liver-specific adeno-associated viral knockdown of the Igf1 gene using Cre-lox technology (Igf1(f/f) + MUP-iCre-AAV8), which exhibits a significant decrease in circulating IGF-1 levels (~50%).
109 22021391 In the aortas of IGF-1-deficient mice, there was a trend for decreased expression of Nrf2 and the Nrf2 target genes GCLC, NQO1 and HMOX1.
110 22128218 Compared to control animals, diabetic rats exhibited lower levels of mRNA coding for Zn-superoxide dismutase, glutathione peroxidase and gamma-glutamylcysteine synthetase and higher levels of reactive oxygen species production by neutrophils, thiobarbituric acid-reactive substances and carbonyl proteins in hepatic tissues.
111 22575091 In vascular models, activators of the transcription factor NF-E2 related factor 2 (Nrf2) pathway have been shown to restore redox homeostasis by increasing antioxidant/electrophilic response element-mediated (ARE/EpRE) expression of phase II and antioxidant enzymes, including NAD(P)H:quinone oxidoreductase-1 (NQO1), heme oxygenase-1 (HO-1) and γ-glutamate cysteine ligase catalytic subunit (GCLC).
112 22575091 Nrf2 activators disrupt basal ubiquitin-dependent degradation of Nrf2 by the 26S proteasome, leading to nuclear Nrf2 accumulation and gene induction.
113 23022408 We observed that AK (10mg/kg bw) exerted peroxisome proliferator-activated receptor-γ (PPARγ) agonist activity, thereby enhancing insulin sensitivity (as indicated by hepatic GLUT2 translocation, PTP1B suppression, and glucose uptake) by downregulating blood glucose and upregulating pancreatic and duodenal homeobox-1 and Maf-A expression and increasing insulin production in MG-induced rats.
114 23022408 However, these effects were abolished by the administration of GW9662 (PPARγ antagonist), but the expression of hepatic heme oxygenase-1 (HO-1) and glutamate-cysteine ligase (GCL) was not suppressed in MG-induced rats.
115 23022408 AK did not affect hepatic Nrf2 mRNA or protein expression but significantly increased Nrf2 phosphorylation (serine 40), which was accompanied by increased transcriptional activation of hepatic HO-1 and GCL.
116 23022408 We also found that AK treatment reduced the production of inflammatory factors, such as tumor necrosis factor-α and interleukin-1β.
117 23022408 Taken together, the results of our mechanistic study of MG-induced rats suggest that the protective effects of AK against diabetes are mediated by the upregulation of the signaling pathway of Nrf2, which enhances antioxidant activity and serves as a PPARγ agonist to enhance insulin sensitivity.
118 23547261 The expression of the master antioxidant regulatory factor Nrf2 (nuclear factor erythroid 2-related factor 2) and its targets, Sesn2, Prdx3, Gclc, and Gclm, was decreased in β-Bmal1(-/-) islets, which may contribute to the observed increase in ROS accumulation.
119 23770363 Vitamin D upregulates glutamate cysteine ligase and glutathione reductase, and GSH formation, and decreases ROS and MCP-1 and IL-8 secretion in high-glucose exposed U937 monocytes.
120 23974919 We examined the effects of GDM on the proteome, redox status, and nuclear factor erythroid 2-related factor 2 (Nrf2)-mediated antioxidant gene expression in human fetal endothelial cells.
121 23974919 In GDM cells, the lipid peroxidation product 4-hydroxynonenal (HNE) failed to induce nuclear Nrf2 accumulation and mRNA and/or protein expression of Nrf2 and its target genes NAD(P)H:quinone oxidoreductase 1 (NQO1), Bach1, cystine/glutamate transporter, and glutamate cysteine ligase.
122 23974919 Although methylation of CpG islands in Nrf2 or NQO1 promoters was unaltered by GDM, decreased DJ-1 and increased phosphorylated glycogen synthase kinase 3β levels may account for impaired Nrf2 signaling.
123 23974919 HNE-induced increases in GSH and NQO1 levels were abrogated by Nrf2 small interfering RNA in normal cells, and overexpression of Nrf2 in GDM cells partially restored NQO1 induction.