PMID- 23382938 OWN - NLM STAT- MEDLINE DCOM- 20130801 LR - 20231213 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 8 IP - 1 DP - 2013 TI - Prognostic significance of the combined score of endothelial expression of nucleolin and CD31 in surgically resected non-small cell lung cancer. PG - e54674 LID - 10.1371/journal.pone.0054674 [doi] LID - e54674 AB - Nucleolin is implicated to play a role in angiogenesis, a vital process in tumor growth and metastasis. However, the presence and clinical relevance of nucleolin in human non small cell lung cancer (NSCLC) remains largely unknown. In this study, we explored the expression and prognostic implication of nucleolin in surgically resected NSCLC patients. A cohort of 146 NSCLC patients who underwent surgical resection was selected for tissue microarray. In this tissue microarray, nucleolin expression was measured by immunofluorescence. Staining for CD31, a marker of endothelial cells, was performed to mark blood vessels. A Cox proportional hazards model was used to assess the prognostic significance of nucleolin. Nucleolin expression was observed in 34.2% of all patients, and 64.1% in high CD31 expression patients. The disease-free survival (DFS) was significantly shorter in patients with high nucleolin (CD31(hi)NCL(hi)) compared to patients with low tumor blood vessels (CD31(lo)NCL(lo)) (5 ys of DFS 24% vs 64%, p = 0.002). Such a difference was demonstrated in the following stratified analyses: stage I (p<0.001), squamous cell carcinoma and adenosquamous cell carcinoma (p = 0.028), small tumor (<5 cm, p = 0.008), and surgery alone (p = 0.015). Multivariate analysis further revealed that nucleolin expression independently predicted for worse survival (p = 0.003). This study demonstrates that nucleolin is associated with the clinical outcomes in postoperative NSCLC patients. Thus, the expression levels of nucleolin may provide a new prognostic marker to identify patients at higher risk for treatment failure, especially in some subgroups. FAU - Zhao, Hongyun AU - Zhao H AD - State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou, China. FAU - Huang, Yan AU - Huang Y FAU - Xue, Cong AU - Xue C FAU - Chen, Yang AU - Chen Y FAU - Hou, Xue AU - Hou X FAU - Guo, Ying AU - Guo Y FAU - Zhao, Liping AU - Zhao L FAU - Hu, Zhi huang AU - Hu Zh FAU - Huang, Yujie AU - Huang Y FAU - Luo, Yongzhang AU - Luo Y FAU - Zhang, Li AU - Zhang L LA - eng PT - Journal Article DEP - 20130131 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Biomarkers, Tumor) RN - 0 (Phosphoproteins) RN - 0 (Platelet Endothelial Cell Adhesion Molecule-1) RN - 0 (RNA-Binding Proteins) SB - IM MH - Adult MH - Aged MH - Biomarkers, Tumor MH - Bone Neoplasms/secondary MH - Carcinoma, Non-Small-Cell Lung/*metabolism/mortality/pathology/surgery MH - Endothelial Cells/*metabolism MH - Female MH - Humans MH - Lung Neoplasms/*metabolism/mortality/pathology/surgery MH - Male MH - Middle Aged MH - Neoplasm Staging MH - Phosphoproteins/*metabolism MH - Platelet Endothelial Cell Adhesion Molecule-1/*metabolism MH - Prognosis MH - Proportional Hazards Models MH - RNA-Binding Proteins/*metabolism MH - Nucleolin PMC - PMC3561357 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2013/02/06 06:00 MHDA- 2013/08/02 06:00 PMCR- 2013/01/31 CRDT- 2013/02/06 06:00 PHST- 2012/07/16 00:00 [received] PHST- 2012/12/17 00:00 [accepted] PHST- 2013/02/06 06:00 [entrez] PHST- 2013/02/06 06:00 [pubmed] PHST- 2013/08/02 06:00 [medline] PHST- 2013/01/31 00:00 [pmc-release] AID - PONE-D-12-20799 [pii] AID - 10.1371/journal.pone.0054674 [doi] PST - ppublish SO - PLoS One. 2013;8(1):e54674. doi: 10.1371/journal.pone.0054674. Epub 2013 Jan 31.