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Mitochondrial respiration is required for activation of ERK1/2 and caspase-3 in human eosinophils stimulated with hydrogen peroxide
DC Field | Value | Language |
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dc.contributor.author | 신명헌 | - |
dc.contributor.author | 이영아 | - |
dc.date.accessioned | 2015-04-24T17:14:41Z | - |
dc.date.available | 2015-04-24T17:14:41Z | - |
dc.date.issued | 2009 | - |
dc.identifier.issn | 1018-9068 | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/105028 | - |
dc.description.abstract | BACKGROUND: Eosinophils are important effector cells in the pathogenesis of allergic diseases such as bronchial asthma. Oxidative stress in the form of cellular reactive oxygen species (ROS) has been implicated in the pathogenesis of several allergic diseases. Recently, it has become evident that mitochondrial-derived ROS are important transducers of apoptosis and intracellular signaling. In this study, we investigated the role of mitochondrial ROS in the activation of extracellular signal-regulated kinases (ERK) 1 and 2-mitogen-activated protein kinase (MAPK) and caspase-3 in human eosinophils stimulated with H2O2. METHODS: Human eosinophils were purified using immunomagnetic negative selection and then stimulated with H2O. H2O2-induced eosinophil apoptosis was measured by staining cells with annexin V. Activation of ERK1/2 MAPK and caspases was assessed by Western blotting. Eosinophils were pretreated with rotenone, an inhibitor of the mitochondrial electron transport chain, before H2O2 was added. RESULTS: Treatment with 1 mM H2O2 induced externalization of phosphatidylserine (PS) and activation of caspases in eosinophils. H2O2-triggered PS externalization and cleavage of caspase-3 were markedly inhibited by pretreatment with the mitochondrial ROS scavenger N-acetyl-L-cysteine. In addition, H2O2 strongly induced phosphorylation of ERK1/2, but not ERK5, in eosinophils. Hydrogen peroxide-triggered activation of caspase-3 and ERK1/2 was attenuated by pretreatment with rotenone. CONCLUSIONS: These results suggest that mitochondrial respiration is essential for activation of ERK1/2 and caspase-3 in human eosinophils stimulated with H2O2. | - |
dc.description.statementOfResponsibility | open | - |
dc.format.extent | 188~194 | - |
dc.relation.isPartOf | JOURNAL OF INVESTIGATIONAL ALLERGOLOGY AND CLINICAL IMMUNOLOGY | - |
dc.rights | CC BY-NC-ND 2.0 KR | - |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/2.0/kr/ | - |
dc.subject.MESH | Apoptosis/drug effects | - |
dc.subject.MESH | Apoptosis/immunology | - |
dc.subject.MESH | Caspase 3/drug effects | - |
dc.subject.MESH | Caspase 3/immunology | - |
dc.subject.MESH | Caspase 3/metabolism* | - |
dc.subject.MESH | Enzyme Activation | - |
dc.subject.MESH | Eosinophils/drug effects | - |
dc.subject.MESH | Eosinophils/immunology* | - |
dc.subject.MESH | Humans | - |
dc.subject.MESH | Hydrogen Peroxide/pharmacology | - |
dc.subject.MESH | Mitochondria/drug effects | - |
dc.subject.MESH | Mitochondria/enzymology | - |
dc.subject.MESH | Mitochondria/immunology* | - |
dc.subject.MESH | Mitogen-Activated Protein Kinase 1/biosynthesis* | - |
dc.subject.MESH | Mitogen-Activated Protein Kinase 3/biosynthesis* | - |
dc.subject.MESH | Oxidative Stress | - |
dc.subject.MESH | Reactive Oxygen Species/immunology | - |
dc.subject.MESH | Reactive Oxygen Species/metabolism | - |
dc.subject.MESH | Rotenone/pharmacology | - |
dc.title | Mitochondrial respiration is required for activation of ERK1/2 and caspase-3 in human eosinophils stimulated with hydrogen peroxide | - |
dc.type | Article | - |
dc.contributor.college | College of Medicine (의과대학) | - |
dc.contributor.department | Dept. of Environmental Medical Biology (환경의생물학) | - |
dc.contributor.googleauthor | YA Lee | - |
dc.contributor.googleauthor | MH Shin | - |
dc.admin.author | false | - |
dc.admin.mapping | false | - |
dc.contributor.localId | A02099 | - |
dc.contributor.localId | A02959 | - |
dc.relation.journalcode | J01468 | - |
dc.identifier.pmid | 19610261 | - |
dc.subject.keyword | Eosinophil | - |
dc.subject.keyword | Hydrogen peroxide | - |
dc.subject.keyword | Mitochondria | - |
dc.subject.keyword | ERK1/2 | - |
dc.subject.keyword | Caspase-3 | - |
dc.contributor.alternativeName | Shin, Myeong Heon | - |
dc.contributor.affiliatedAuthor | Shin, Myeong Heon | - |
dc.citation.volume | 19 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 188 | - |
dc.citation.endPage | 194 | - |
dc.identifier.bibliographicCitation | JOURNAL OF INVESTIGATIONAL ALLERGOLOGY AND CLINICAL IMMUNOLOGY, Vol.19(3) : 188-194, 2009 | - |
dc.identifier.rimsid | 56241 | - |
dc.type.rims | ART | - |
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