Full metadata record
DC Field | Value | Language |
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dc.creator | Vicent, S. (Silvestre) | |
dc.creator | Garayoa, M. (Mercedes) | |
dc.creator | Lopez-Picazo, J.M. (José M.) | |
dc.creator | Lozano, M.D. (María Dolores) | |
dc.creator | Toledo, G. (Gemma) | |
dc.creator | Thunnissen, F.B. (Frederick B.) | |
dc.creator | Manzano, R.G. (Ramón G.) | |
dc.creator | Montuenga-Badia, L.M. (Luis M.) | |
dc.date.accessioned | 2011-08-19T12:16:28Z | - |
dc.date.available | 2011-08-19T12:16:28Z | - |
dc.date.issued | 2004 | - |
dc.identifier.citation | Vicent S, Garayoa M, Lopez-Picazo JM, Lozano MD, Toledo G, Thunnissen FB, et al. Mitogen-activated protein kinase phosphatase-1 is overexpressed in non-small cell lung cancer and is an independent predictor of outcome in patients. Clin Cancer Res 2004 Jun 1;10(11):3639-3649. | es_ES |
dc.identifier.issn | 1557-3265 | - |
dc.identifier.uri | https://hdl.handle.net/10171/18811 | - |
dc.description.abstract | An increase in the activity of the mitogen-activated protein kinases (MAPKs) has been correlated with a more malignant phenotype in several tumor models in vitro and in vivo. A key regulatory mechanism of the MAPKs [extracellular signal-regulated kinase (ERK); c-jun NH(2)-terminal kinase (JNK); and p38] is the dual specificity phosphatase CL100, also called MAPK phosphatase-1 (MKP-1). This study was designed to examine the involvement of CL100/MKP-1 and stress-related MAPKs in lung cancer. EXPERIMENTAL DESIGN: We assessed the expression of CL100/MKP-1 and the activation of the MAPKs in a panel of 18 human cell lines [1 primary normal bronchial epithelium, 8 non-small cell lung cancer (NSCLC), 7 small cell lung cancer (SCLC), and 2 carcinoids] and in 108 NSCLC surgical specimens. RESULTS: In the cell lines, CL100/MKP-1 expression was substantially higher in NSCLC than in SCLC. P-ERK, P-JNK, and P-p38 were activated in SCLC and NSCLC, but the degree of their activation was variable. Immunohistochemistry in NSCLC resection specimens showed high levels of CL100/MKP-1 and activation of the three MAPK compared with normal lung. In univariate analysis, no relationship was found among CL100/MKP-1 expression and P-ERK, P-JNK, or P-p38. Interestingly, high CL100/MKP-1 expression levels independently predicted improved survival in multivariate analysis. JNK activation associated with T(1-2) and early stage, whereas ERK activation correlated with late stages and higher T and N. Neither JNK nor ERK activation were independent prognostic factors when studied for patient survival. CONCLUSIONS: Our data indicate the relevance of MAPKs and CL100/MKP-1 in lung cancer and point at CL100/MKP-1 as a potential positive prognostic factor in NSCLC. Finally, our study supports the search of new molecular targets for lung cancer therapy within the MAPK signaling pathway. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | American Association for Cancer Research | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.subject | Lung Neoplasms/therapy | es_ES |
dc.subject | Protein Phosphatase 1 | es_ES |
dc.title | Mitogen-Activated Protein Kinase Phosphatase-1 Is Overexpressed in Non-Small Cell Lung Cancer and Is an Independent Predictor of Outcome in Patients | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.relation.publisherversion | http://clincancerres.aacrjournals.org/content/10/11/3639 | es_ES |
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