Document Detail


Retrospective analysis of the prognostic role of p16 protein inactivation in plasma in patients with locally advanced non-small cell lung cancer.
MedLine Citation:
PMID:  18243403     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
It has been analyzed the frequency of p16 inactivation in 67 blood samples of patients diagnosed with advanced non-small cell lung cancer (NSCLC), to establish the relationship between p16 inactivation and time to progression (TTP) and overall survival (OS), and its relationship with various clinical parameters. This is a retrospective study of 67 patients diagnosed with advanced NSCLC between August 2000 and July 2003 in the Hospital General de Valencia analysing p16 inactivation by assessing in plasma either loss of heterozygosity (LOH) or p16 promoter methylation. The study shows p16 inactivation in 28.3% (either by LOH or by p16 methylation). No significant differences were found between the group with p16 inactivation and the group without p16 inactivation, either in patients' TTP (31 weeks vs. 24 weeks; p=0.7) or in OS (53 weeks vs. 43 weeks; p=0.48). No relationship was found between the state of p16 and the clinical parameters analyzed (stage, ECOG, histology). Despite the fact that p16 is important in NSCLC carcinogenesis, the data obtained in our study do not allow the prognostic impact of this biological marker to be established.
Authors:
Rafael Sirera; Mireia Gil; Ana Blasco; Andrea Cabrera; María José Safont; Vega Iranzo; Diego Cayuela; Rafael Rosell; Carlos Camps
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Publication Detail:
Type:  Journal Article     Date:  2008-02-19
Journal Detail:
Title:  Lung cancer (Amsterdam, Netherlands)     Volume:  61     ISSN:  0169-5002     ISO Abbreviation:  Lung Cancer     Publication Date:  2008 Jul 
Date Detail:
Created Date:  2008-06-30     Completed Date:  2008-09-16     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8800805     Medline TA:  Lung Cancer     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  104-8     Citation Subset:  IM    
Affiliation:
Servicio de Oncología Médica, Hospital General Universitario, Valencia, Spain.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aged, 80 and over
Carcinoma, Non-Small-Cell Lung / blood*,  genetics*,  mortality
DNA Methylation
Disease-Free Survival
Female
Genes, p16*
Humans
Kaplan-Meiers Estimate
Loss of Heterozygosity
Lung Neoplasms / blood*,  genetics*,  mortality
Male
Middle Aged
Prognosis
Promoter Regions, Genetic
Retrospective Studies
Tumor Markers, Biological / analysis*
Tumor Suppressor Protein p14ARF / blood,  genetics
Chemical
Reg. No./Substance:
0/Tumor Markers, Biological; 0/Tumor Suppressor Protein p14ARF

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