Authors: Leonardo Lisbôa da Motta Carolina B Müller Marco A De Bastiani Guilherme A Behr Fernanda S França Ricardo F da Rocha Juliane B Minotto Rosalva T Meurer Marilda C Fernandes Adriana Roehe Melissa M Markoski Cristiano F Andrade Mauro A A Castro Fábio Klamt
Publish Date: 2014/01/22
Volume: 140, Issue: 3, Pages: 461-470
Abstract
We assayed in vitro the tumoral invasiveness and multidrug resistance in human lung adenocarcinoma AdC cell lines EKVX and A549 Data were associated with several redox parameters and differential expression levels of HAG network The clinicopathological significance of these findings was investigated using microarray analysis of tumor tissue and by immunohistochemistry in archival collection of biopsiesAn overall increased activity expression of selected HAG components in the most aggressive cell line EKVX cells was observed by bootstrap and gene set enrichment analysis GSEA In vitro validation of oxidative markers revealed that EKVX cells had high levels of oxidative stress markers In AdC cohorts GSEA of microarray datasets showed significantly high levels of HAG components in lung AdC samples in comparison with normal tissue in advanced stage compared with early stage and in patients with poor outcome Cox multivariate regression analysis in a cohort of early pathologic pstage of AdC cases showed that patients with moderate levels of 4hydroxynonenal a specific and stable end product of lipid peroxidation had a significantly less survival rate hazard ratio of 887 P 005
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