title: 14-3-3ζ Overexpression and abnormal β-catenin expression are associated with poor differentiation and progression in stage I non-small cell lung cancer.
abstract: Recent studies have shown that 14-3-3ζ interacted with other key cellular proteins involved in the tumor development and progression. Knowledge of 14-3-3ζ and β-catenin expression and clinical significance in the same tumor tissues is limited. The purpose of this study was to investigate the expression and significance of 14-3-3ζ and β-catenin in stage I non-small-cell lung cancer (NSCLC). Specimens of NSCLC and adjacent normal lung tissues were collected from 110 patients. The expressions of 14-3-3ζ and β-catenin were detected by western blotting, double labeling immunofluorescence, confocal laser scanning microscopy and immunohistochemistry. The expression of 14-3-3ζ was upregulated in stage I NSCLC. Further, the overexpression of 14-3-3ζ correlated with histological grades, lymph node metastasis and poor clinical outcome. Abnormal expression of β-catenin was significantly correlated with poor differentiation and lymph node metastasis. Abnormal β-catenin expression was associated significantly with positive 14-3-3ζ expression. In conclusion, 14-3-3ζ and β-catenin might have an important role in development, progression and metastatic process of NSCLC. 14-3-3ζ might be used as prognostic biomarkers for NSCLC.
authors.affiliation: Department of Thoracic Surgery, First Affiliated Hospital of China Medical University, 110001, Shenyang, China.
authors.forename: Dongyu
authors.initials: D
authors.lastname: Zang
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Li
authors.forename: Lin
authors.initials: L
authors.lastname: Zhang
mesh_terms: D048948:14-3-3 Proteins / Q000096:biosynthesis*; D000328:Adult; D000368:Aged; D015153:Blotting, Western; D002289:Carcinoma, Non-Small-Cell Lung / Q000473:pathology*; D005260:Female; D015870:Gene Expression; D006801:Humans; D007150:Immunohistochemistry; D008168:Lung / Q000473:pathology; D008198:Lymph Nodes / Q000473:pathology; D008297:Male; D018613:Microscopy, Confocal; D008856:Microscopy, Fluorescence; D008875:Middle Aged; D009362:Neoplasm Metastasis / Q000473:pathology; D051176:beta Catenin / Q000096:biosynthesis*
chemical_list: D048948:14-3-3 Proteins; D051176:beta Catenin