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PMID |
Sentence |
| 1 |
16728393
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There was no functional difference in the signal transducers and activators of transcription (STAT) pathways between progenitors and mature oligodendrocytes as determined by induction of IRF1 mRNA in response to IFNG.
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| 2 |
16728393
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Therefore, we concluded that simultaneous activation of the STAT pathway by IFNG and of the ERK pathway by exogenous trophic factors played a role in the stage-specific IFNG-induced cytotoxicity in oligodendroglial progenitors.
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| 3 |
19879772
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TNFalpha and TGF-beta1 influence IL-18-induced IFNgamma production through regulation of IL-18 receptor and T-bet expression.
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| 4 |
19879772
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IL-18 is a pro-inflammatory cytokine that drives dendritic cell maturation and mediates IFNgamma production.
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| 5 |
19879772
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In this study, we demonstrate that in the dendritic precursor-like cell line KG-1, IFNgamma production induced by IL-18 is potentiated (>5-fold) by TNFalpha and completely suppressed by TGF-beta1.
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| 6 |
19879772
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IL-18 stimulation rapidly activates different MAPK signalling pathways but only blocking of p38 activation alleviates IFNgamma production.
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| 7 |
19879772
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The mechanism through which TNFalpha enhances IL-18 induced IFNgamma production is by promoting IL-18 receptor alpha-chain expression which results in higher levels of p38 activation and induces expression of T-bet, a transcriptional regulator of the IFNG gene.
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| 8 |
19879772
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In contrast, TGF-beta1 rapidly suppresses IFNgamma production by limiting IL-18 receptor numbers at the cell surface and preventing induction of T-bet expression.
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| 9 |
19879772
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TGF-beta1 experience by cells leads to sustained long-term inactivation of TNFalpha/IL-18-mediated cell activation but not IL-18 induced p38 activation suggesting transcriptional silencing of the T-BET and/or IFNG promoter independent of MAPK signalling.
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| 10 |
22584669
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Cytokines induce tight junction disassembly in airway cells via an EGFR-dependent MAPK/ERK1/2-pathway.
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| 11 |
22584669
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To evaluate in vitro whether pro-inflammatory cytokines involved in the pathogenesis of respiratory disorders could alter TJ organization and epithelial barrier integrity, and to characterize the signal transduction pathway involved Calu-3 airway epithelial cells were exposed to TNF-a, IL-4 and IFN-g to assess changes in: (a) TJ assembly, that is, occludin and zonula occludens (ZO)-1 expression and localization, evaluated by confocal microscopy; (b) apoptotic activity, quantified using terminal transferase deoxyuridine triphosphate nick-end labeling staining; (c) epithelial barrier integrity, detected as transmembrane electrical resistance and expressed as G(T) values; (d) epidermal growth factor receptor (EGFR)-dependent mitogenactivated protein (MAP) kinase (MAPK)/extracellular signal-regulated kinases (ERK)1/2 phosphorylation, assessed by western blotting.
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| 12 |
22584669
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The degree ZO-1 and occludin colocalization was 62±2% in control cultures and significantly decreased in the presence of TNF-a (47±3%), IL-4 (43±1%) and INF-g (35±3%).
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| 13 |
22584669
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G(T) values were, respectively, 1.030±0.0, 1.300±0.04, 1.260±0.020 and 2.220±0.015 (mS/cm²)1000 in control cultures and in those exposed to TNF-a, IFN-g and IL-4.
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| 14 |
22584669
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The involvement of EGFR-dependent MAPK/ERK1/2 signaling pathway in cytokine-induced damage was demonstrated by a significant increase in threonine/tyrosine phosphorylation of ERK1/2, already detectable after 5 min incubation.
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| 15 |
22584669
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All these cytokine-induced changes were markedly prevented when Calu-3 cells were cultured in the presence of an EGFR inhibitor (AG1478, 1 μM) or a MAP kinase inhibitor (U0126, 25 μM).
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| 16 |
22584669
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In conclusion, cytokine-induced epithelial injury includes TJ disassembly and epithelial barrier permeability alteration and involves the EGFR-dependent MAPK/ERK1/2 signaling pathway.
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| 17 |
22874566
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IFNG and autophagy: a critical role for the ER-stress mediator ATF6 in controlling bacterial infections.
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| 18 |
22874566
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The death-associated protein kinase 1 (DAPK1), originally identified as an activator of IFNG-induced cell death, controls autophagy.
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| 19 |
22874566
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Previously, we have shown that transcription factor CEBPB (C/EBP-β) regulates IFNG-induced expression of Dapk1 through a CRE/ATF motif in its enhancer.
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| 20 |
22874566
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In this paper we have shown that ATF6, an ER-resident transcription factor regulates IFNG-induced Dapk1 expression through the CRE/ATF site, in association with CEBPB.
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| 21 |
22874566
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IFNG-stimulated proteolytic cleavage of ATF6, and MAPK1/3 (ERK2/1)-dependent phosphorylation of CEBPB together control the expression of Dapk1.
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| 22 |
22874566
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Consistent with their requirement for DAPK1 expression, IFNG fails to induce autophagy in cells lacking either Atf6 or Cebpb.
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