Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/108003
DC Field | Value | Language |
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dc.contributor.author | Ferreira, Isabel | - |
dc.contributor.author | Silva, Ana | - |
dc.contributor.author | Martins, João Demétrio | - |
dc.contributor.author | Neves, Bruno Miguel | - |
dc.contributor.author | Cruz, Maria Teresa | - |
dc.date.accessioned | 2023-08-04T09:13:36Z | - |
dc.date.available | 2023-08-04T09:13:36Z | - |
dc.date.issued | 2018-06 | - |
dc.identifier.issn | 22132317 | pt |
dc.identifier.uri | https://hdl.handle.net/10316/108003 | - |
dc.description.abstract | Low molecular weight reactive chemicals causing skin and respiratory allergies are known to activate dendritic cells (DC), an event considered to be a key step in both pathologies. Although generation of reactive oxygen species (ROS) is considered a major danger signal responsible for DC maturation, the mechanisms leading to cellular redox imbalance remain poorly understood. Therefore, the aim of this study was to unveil the origin and kinetics of redox imbalance elicited by 1-fluoro-2,4-dinitrobenzene (DNFB) and trimellitic anhydride chloride (TMAC), two golden standards of skin and chemical respiratory allergy, respectively. To track this goal, we addressed the time course modifications of ROS production and cellular antioxidant defenses as well as the modulation of MAPKs signaling pathways and transcription of pathophysiological relevant genes in THP-1 cells. Our data shows that the thiol-reactive sensitizer DNFB directly reacts with cytoplasmic glutathione (GSH) causing its rapid and marked depletion which results in a general increase in ROS accumulation. In turn, TMAC, which preferentially reacts with amine groups, induces a delayed GSH depletion as a consequence of increased mitochondrial ROS production. These divergences in ROS production seem to be correlated with the different extension of intracellular signaling pathways activation and, by consequence, with distinct transcription kinetics of genes such as HMOX1, IL8, IL1B and CD86. Ultimately, our observations may help explain the distinct DC phenotype and T-cell polarizing profile triggered by skin and respiratory sensitizers. | pt |
dc.language.iso | eng | pt |
dc.publisher | Elsevier | pt |
dc.relation | The Johns Hopkins Center for Alternatives to Animal Testing, Project no: 2014-07 | pt |
dc.relation | POCI-01–0145-FEDER-007440 | pt |
dc.relation | CENTRO-01-0145-FEDER-000012: HealthyAging2020 | pt |
dc.relation | SFRH/BD/110717/2015 | pt |
dc.relation | SFRH/BD/73065/2010 | pt |
dc.rights | openAccess | pt |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | pt |
dc.subject | ROS | pt |
dc.subject | Oxidative stress | pt |
dc.subject | Glutathione | pt |
dc.subject | Allergic contact dermatitis | pt |
dc.subject | Chemical respiratory allergy | pt |
dc.subject | Dendritic cells maturation | pt |
dc.subject.mesh | Anhydrides | pt |
dc.subject.mesh | Antioxidants | pt |
dc.subject.mesh | Cell Line | pt |
dc.subject.mesh | Dendritic Cells | pt |
dc.subject.mesh | Dinitrofluorobenzene | pt |
dc.subject.mesh | Glutathione | pt |
dc.subject.mesh | Heme Oxygenase-1 | pt |
dc.subject.mesh | Humans | pt |
dc.subject.mesh | Kinetics | pt |
dc.subject.mesh | Mitogen-Activated Protein Kinase Kinases | pt |
dc.subject.mesh | Monocytes | pt |
dc.subject.mesh | Oxidation-Reduction | pt |
dc.subject.mesh | Reactive Oxygen Species | pt |
dc.subject.mesh | Skin | pt |
dc.title | Nature and kinetics of redox imbalance triggered by respiratory and skin chemical sensitizers on the human monocytic cell line THP-1 | pt |
dc.type | article | - |
degois.publication.firstPage | 75 | pt |
degois.publication.lastPage | 86 | pt |
degois.publication.title | Redox Biology | pt |
dc.peerreviewed | yes | pt |
dc.identifier.doi | 10.1016/j.redox.2018.02.002 | pt |
degois.publication.volume | 16 | pt |
dc.date.embargo | 2018-06-01 | * |
uc.date.periodoEmbargo | 0 | pt |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.openairetype | article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | Com Texto completo | - |
crisitem.author.researchunit | CNC - Center for Neuroscience and Cell Biology | - |
crisitem.author.researchunit | CNC - Center for Neuroscience and Cell Biology | - |
crisitem.author.researchunit | CNC - Center for Neuroscience and Cell Biology | - |
crisitem.author.researchunit | CNC - Center for Neuroscience and Cell Biology | - |
crisitem.author.orcid | 0000-0002-4041-0376 | - |
crisitem.author.orcid | 0000-0001-9846-6754 | - |
Appears in Collections: | I&D CNC - Artigos em Revistas Internacionais |
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Nature and kinetics of redox imbalance triggered by respiratory and skin chemical sensitizers on the human monocytic cell line THP-1.pdf | 1.39 MB | Adobe PDF | View/Open |
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