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PMID |
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1 |
15096655
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Interleukin-11 inhibits NF-kappaB and AP-1 activation in islets and prevents diabetes induced with streptozotocin in mice.
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15096655
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This laboratory has reported that multiple low doses of streptozotocin (MLD-STZ) similarly upregulate the T helper (Th)1-type proinflammatory cytokines tumor necrosis factor (TNF)-alpha and interferon (IFN)-gamma in islets of both the diabetes-susceptible male and the diabetes-resistant female C57BL/6 mice and that MLD-STZ downregulates the anti-inflammatory Th2-type cytokines interleukin (IL)-4 and IL-10, as well as the anti-inflammatory Th3-type cytokine-transforming growth factor (TGF)-ss1 in islets of male, but not female, mice.
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3 |
15096655
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Here, we investigated the effects of MLD-STZ on the anti-inflammatory cytokine IL-11 and the transcription factors nuclear factor (NF)-kappaB and activator protein (AP)-1, which are involved in gene activation of proinflammatory cytokines, and on the cytosolic kinase (IKK-alpha) of NF-kappaB inhibitor (IkappaB).
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4 |
15096655
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Furthermore, the effect of recombinant human (rh)IL-11 on MLD-STZ diabetes, insulitis, cytokines, IKK-alpha, NF-kappaB, and AP-1 was analyzed in islets.
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5 |
15096655
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Interleukin-11 prevented diabetes without affecting insulitis; attenuated TNF-alpha and IFN-gamma response; and stimulated IL-4 production and inhibited activation of IKK-alpha, NF-kappaB, and AP-1.
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6 |
15096655
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In this process, the transcription factors NF-kappaB and AP-1 might play a key role.
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7 |
15096655
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Interleukin-11 inhibits NF-kappaB and AP-1 activation in islets and prevents diabetes induced with streptozotocin in mice.
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8 |
15096655
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This laboratory has reported that multiple low doses of streptozotocin (MLD-STZ) similarly upregulate the T helper (Th)1-type proinflammatory cytokines tumor necrosis factor (TNF)-alpha and interferon (IFN)-gamma in islets of both the diabetes-susceptible male and the diabetes-resistant female C57BL/6 mice and that MLD-STZ downregulates the anti-inflammatory Th2-type cytokines interleukin (IL)-4 and IL-10, as well as the anti-inflammatory Th3-type cytokine-transforming growth factor (TGF)-ss1 in islets of male, but not female, mice.
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9 |
15096655
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Here, we investigated the effects of MLD-STZ on the anti-inflammatory cytokine IL-11 and the transcription factors nuclear factor (NF)-kappaB and activator protein (AP)-1, which are involved in gene activation of proinflammatory cytokines, and on the cytosolic kinase (IKK-alpha) of NF-kappaB inhibitor (IkappaB).
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10 |
15096655
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Furthermore, the effect of recombinant human (rh)IL-11 on MLD-STZ diabetes, insulitis, cytokines, IKK-alpha, NF-kappaB, and AP-1 was analyzed in islets.
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11 |
15096655
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Interleukin-11 prevented diabetes without affecting insulitis; attenuated TNF-alpha and IFN-gamma response; and stimulated IL-4 production and inhibited activation of IKK-alpha, NF-kappaB, and AP-1.
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12 |
15096655
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In this process, the transcription factors NF-kappaB and AP-1 might play a key role.
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13 |
15096655
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Interleukin-11 inhibits NF-kappaB and AP-1 activation in islets and prevents diabetes induced with streptozotocin in mice.
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14 |
15096655
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This laboratory has reported that multiple low doses of streptozotocin (MLD-STZ) similarly upregulate the T helper (Th)1-type proinflammatory cytokines tumor necrosis factor (TNF)-alpha and interferon (IFN)-gamma in islets of both the diabetes-susceptible male and the diabetes-resistant female C57BL/6 mice and that MLD-STZ downregulates the anti-inflammatory Th2-type cytokines interleukin (IL)-4 and IL-10, as well as the anti-inflammatory Th3-type cytokine-transforming growth factor (TGF)-ss1 in islets of male, but not female, mice.
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15 |
15096655
|
Here, we investigated the effects of MLD-STZ on the anti-inflammatory cytokine IL-11 and the transcription factors nuclear factor (NF)-kappaB and activator protein (AP)-1, which are involved in gene activation of proinflammatory cytokines, and on the cytosolic kinase (IKK-alpha) of NF-kappaB inhibitor (IkappaB).
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16 |
15096655
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Furthermore, the effect of recombinant human (rh)IL-11 on MLD-STZ diabetes, insulitis, cytokines, IKK-alpha, NF-kappaB, and AP-1 was analyzed in islets.
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17 |
15096655
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Interleukin-11 prevented diabetes without affecting insulitis; attenuated TNF-alpha and IFN-gamma response; and stimulated IL-4 production and inhibited activation of IKK-alpha, NF-kappaB, and AP-1.
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18 |
15096655
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In this process, the transcription factors NF-kappaB and AP-1 might play a key role.
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19 |
15888549
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Contraction of isolated extensor digitorum longus muscles in vitro increased IKKalpha/beta phosphorylation sevenfold and this was accompanied by a parallel increase in IkappaBalpha phosphorylation.
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20 |
15888549
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Additional kinases that are activated by exercise include p38, extracellular-signal regulated protein kinase (ERK), and AMP-activated protein kinase (AMPK).
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21 |
15888549
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Inhibitors of p38 (SB-203580) and ERK (U-0126) blunted contraction-mediated IKK phosphorylation by 39 +/- 4% (P = 0.06) and 35 +/- 10% (P = 0.09), respectively, and in combination by 76 +/- 5% (P < 0.05), suggesting that these kinases might influence the activation of IKK and NF-kappaB during exercise.
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22 |
15888549
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In contrast, 5-aminoimidazole-4-carboxamide-1-beta-D-ribofuranoside, an activator of AMPK, had no effect on either IKK or NF-kappaB activity.
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23 |
16177186
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Quercetin decreases oxidative stress, NF-kappaB activation, and iNOS overexpression in liver of streptozotocin-induced diabetic rats.
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24 |
16177186
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Eight weeks later we measured TBARS and hydroperoxide-initiated chemiluminescence (QL) in liver as markers of oxidative stress, and activities of the antioxidant enzymes catalase, superoxide dismutase (SOD), and glutathione peroxidase, NF-kappaB activation by an electrophoretic mobility shift assay and expression of IkappaB kinases (IKKalpha and IKKbeta), the inhibitor IkappaB (IkappaBalpha and IkappaBbeta), and iNOS by Western blot.
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25 |
16177186
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Streptozotocin administration induced significant increases in hepatic TBARS concentration, QL, and SOD and catalase activities that were prevented by quercetin.
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26 |
16177186
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Activation of NF-kappaB, induction of IKKalpha and iNOS protein levels, and increased degradation of IkappaBalpha were also observed in streptozotocin-treated rats.
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27 |
16177186
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Quercetin decreases oxidative stress, NF-kappaB activation, and iNOS overexpression in liver of streptozotocin-induced diabetic rats.
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28 |
16177186
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Eight weeks later we measured TBARS and hydroperoxide-initiated chemiluminescence (QL) in liver as markers of oxidative stress, and activities of the antioxidant enzymes catalase, superoxide dismutase (SOD), and glutathione peroxidase, NF-kappaB activation by an electrophoretic mobility shift assay and expression of IkappaB kinases (IKKalpha and IKKbeta), the inhibitor IkappaB (IkappaBalpha and IkappaBbeta), and iNOS by Western blot.
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29 |
16177186
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Streptozotocin administration induced significant increases in hepatic TBARS concentration, QL, and SOD and catalase activities that were prevented by quercetin.
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30 |
16177186
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Activation of NF-kappaB, induction of IKKalpha and iNOS protein levels, and increased degradation of IkappaBalpha were also observed in streptozotocin-treated rats.
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31 |
16319058
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To identify the molecular mechanisms of manumycin A action, cultured human HepG2 hepatoma cells were transiently transfected with various IKKalpha and IKKbeta constructs, and a striking difference in manumycin A sensitivity was observed.
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32 |
16919536
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Glucose ingestion (75 g in 300 mL water) in healthy human subjects resulted in an increase in intranuclear nuclear factor kappaB (NF-kappaB) binding, the reduction of inhibitor kappaB alpha (IkappaBalpha) protein, and an increase in the activity of inhibitor kappaB kinase (IKK) and the expression of IKKalpha and IKKbeta, the enzymes that phosphorylate IkappaBalpha, in MNCs.
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33 |
16919536
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Glucose intake caused an increase in NF-kappaB binding to NF-kappaB2, NF-kappaB2a, and NF-kappaB3 sequences in the promoter site of tumor necrosis factor alpha (TNF-alpha) gene along with an increase in the expression of TNF-alpha messenger RNA in MNCs.
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34 |
16919536
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Membranous p47(phox) subunit, an index of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase expression and activation, also increased after glucose intake.
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35 |
16919536
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We conclude that glucose intake induces an immediate increase in intranuclear NF-kappaB binding, a fall in IkappaBalpha, an increase in IKKalpha, IKKbeta, IKK activity, and messenger RNA expression of TNF-alpha in MNCs in healthy subjects.
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36 |
16919536
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Glucose ingestion (75 g in 300 mL water) in healthy human subjects resulted in an increase in intranuclear nuclear factor kappaB (NF-kappaB) binding, the reduction of inhibitor kappaB alpha (IkappaBalpha) protein, and an increase in the activity of inhibitor kappaB kinase (IKK) and the expression of IKKalpha and IKKbeta, the enzymes that phosphorylate IkappaBalpha, in MNCs.
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37 |
16919536
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Glucose intake caused an increase in NF-kappaB binding to NF-kappaB2, NF-kappaB2a, and NF-kappaB3 sequences in the promoter site of tumor necrosis factor alpha (TNF-alpha) gene along with an increase in the expression of TNF-alpha messenger RNA in MNCs.
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38 |
16919536
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Membranous p47(phox) subunit, an index of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase expression and activation, also increased after glucose intake.
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39 |
16919536
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We conclude that glucose intake induces an immediate increase in intranuclear NF-kappaB binding, a fall in IkappaBalpha, an increase in IKKalpha, IKKbeta, IKK activity, and messenger RNA expression of TNF-alpha in MNCs in healthy subjects.
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40 |
18945937
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The availability of NO to the vasculature is regulated by endothelial nitric oxide synthase (eNOS) activity and the involvement of heat shock protein-90 (Hsp-90) in the regulation of eNOS activity has been demonstrated.
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41 |
18945937
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Hsp-90 has been shown to interact with upstream kinases [inhibitor kappaB kinases (IKK)alpha, beta, and gamma] in nonvascular cells.
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42 |
18945937
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We report for the first time that IKKbeta interacts with Hsp-90, and this interaction is augmented by HG in vascular endothelial cells.
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43 |
18945937
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Both IKKbeta and eNOS could be coimmunoprecipitated with Hsp-90.
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44 |
18945937
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Blocking of IKKbeta expression by IKK inhibitor II (15 microM wedelolactone) or small interferring RNA (siRNA) improved Hsp-90-eNOS interaction and NO production under conditions of HG.
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45 |
19195861
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The expression of intercellular adhesion molecule-1 (ICAM1) and vascular cell adhesion molecule-1 (VCAM1) increased, but that of occludin decreased.
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46 |
19195861
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Apigenin strongly inhibited the expression of VCAM1, IkappaB kinase (IKK) alpha and IKKepsilon/IKKi, and suppressed the adhesion of U937 cells.
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47 |
19195861
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HG and TNFalpha induced the expression of cell adhesion molecules and reduced that of occludin in EC.
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48 |
19363130
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Feed-forward signaling of TNF-alpha and NF-kappaB via IKK-beta pathway contributes to insulin resistance and coronary arteriolar dysfunction in type 2 diabetic mice.
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49 |
19363130
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We hypothesized that the interaction between tumor necrosis factor-alpha (TNF-alpha)/nuclear factor-kappaB (NF-kappaB) via the activation of IKK-beta may amplify one another, resulting in the evolution of vascular disease and insulin resistance associated with diabetes.
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50 |
19363130
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The NF-kappaB antagonist MG-132 or the IKK-beta inhibitor sodium salicylate (NaSal) partially restored nitric oxide-mediated endothelium-dependent coronary arteriolar dilation in Lepr(db) mice, but the responses in mLepr(db) mice were unaffected.
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51 |
19363130
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The protein expression of IKK-alpha and IKK-beta were higher in Lepr(db) than in mLepr(db) mice; the expression of IKK-beta, but not the expression of IKK-alpha, was attenuated by MG-132, the antioxidant apocynin, or the genetic deletion of TNF-alpha in diabetic mice.
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52 |
19363130
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The protein expression of TNF-alpha and NF-kappaB and the protein modification of phosphorylated (p)-IKK-beta and p-JNK were greater in Lepr(db) mice, but NaSal attenuated TNF-alpha, NF-kappaB, p-IKK-beta, and p-JNK in Lepr(db) mice.
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53 |
19363130
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The ratio of p-insulin receptor substrate (IRS)-1 at Ser307 to IRS-1 was elevated in Lepr(db) compared with mLepr(db) mice; both NaSal and the JNK inhibitor SP-600125 reduced the p-IRS-1-to-IRS-1 ratio in Lepr(db) mice.
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54 |
19363130
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In conclusion, our results indicate that the interaction between NF-kappaB and TNF-alpha signaling induces the activation of IKK-beta and amplifies oxidative stress, leading to endothelial dysfunction in type 2 diabetes.
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