Requirement of the JNK-associated Bcl-2 pathway for human lactoferrin-induced apoptosis in the Jurkat leukemia T cell line
DC Field | Value | Language |
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dc.contributor.author | Lee, Shin-Hee | - |
dc.contributor.author | Park, Sang Won | - |
dc.contributor.author | Pyo, Chul-Woong | - |
dc.contributor.author | Yoo, Na-Kyung | - |
dc.contributor.author | Kim, Jiyoung | - |
dc.contributor.author | Choi, Sang-Yun | - |
dc.date.accessioned | 2021-09-08T21:04:50Z | - |
dc.date.available | 2021-09-08T21:04:50Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2009-01 | - |
dc.identifier.issn | 0300-9084 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/120819 | - |
dc.description.abstract | The cell proliferation of p53-deficient Jurkat T cells is controlled after prolonged exposure to human lactoferrin (U). However, the molecular mechanism by which Lf influences these cellular responses remains unclear. In this study, we demonstrate that U-induced apoptosis in Jurkat T cells occurs in a dose- and time-dependent manner via the regulation of c-Jun N-terminal kinase (JNK) activity. Jurkat cells exposed to Lf for 1 day, especially at concentrations in excess of 500 mu g/ml, showed typical apoptosis, as indicated by decreased cell viability and increased Annexin V binding. Our results also showed that Lf induced the activation of caspase 9 and caspase 3 activation, as demonstrated by our detection of cleaved caspases and PARR Lf-induced apoptosis did not influence Bcl-2 expression via an ERK1/2 phosphorylation pathway, but was rather associated with the level of BCL-2 phosphorylation. The treatment of cells with the specific JNK inhibitor SP600125, but not the p38 MAPK inhibitor SB203580, revealed that the JNK-Bcl-2 signaling cascade is required for U-induced apoptosis. When JNK activation was abolished by SP600125, no Bcl-2 phosphorylation was detected, and the Lf-treated Jurkat cells did not undergo cell death. These findings indicate that Lf functions as a biological mediator of apoptosis in the human leukemia Jurkat T-cell line, via the JNK-associated Bcl-2 signaling pathway. (C) 2008 Elsevier Masson SAS. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER | - |
dc.subject | NEUTROPHIL LACTOFERRIN | - |
dc.subject | ACTIVATION | - |
dc.subject | KINASE | - |
dc.subject | INDUCTION | - |
dc.subject | PHOSPHORYLATION | - |
dc.subject | GROWTH | - |
dc.title | Requirement of the JNK-associated Bcl-2 pathway for human lactoferrin-induced apoptosis in the Jurkat leukemia T cell line | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Choi, Sang-Yun | - |
dc.identifier.doi | 10.1016/j.biochi.2008.05.004 | - |
dc.identifier.scopusid | 2-s2.0-58149134848 | - |
dc.identifier.wosid | 000263019200013 | - |
dc.identifier.bibliographicCitation | BIOCHIMIE, v.91, no.1, pp.102 - 108 | - |
dc.relation.isPartOf | BIOCHIMIE | - |
dc.citation.title | BIOCHIMIE | - |
dc.citation.volume | 91 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 102 | - |
dc.citation.endPage | 108 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Biochemistry & Molecular Biology | - |
dc.relation.journalWebOfScienceCategory | Biochemistry & Molecular Biology | - |
dc.subject.keywordPlus | NEUTROPHIL LACTOFERRIN | - |
dc.subject.keywordPlus | ACTIVATION | - |
dc.subject.keywordPlus | KINASE | - |
dc.subject.keywordPlus | INDUCTION | - |
dc.subject.keywordPlus | PHOSPHORYLATION | - |
dc.subject.keywordPlus | GROWTH | - |
dc.subject.keywordAuthor | Lactoferrin | - |
dc.subject.keywordAuthor | Apoptosis | - |
dc.subject.keywordAuthor | JNK | - |
dc.subject.keywordAuthor | Bcl-2 | - |
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