Journal
HISTOPATHOLOGY
Volume 54, Issue 5, Pages 590-597Publisher
WILEY
DOI: 10.1111/j.1365-2559.2009.03260.x
Keywords
lung adenocarcinoma; maspin; p53; prognosis; Stage I; subcellular localization; VEGF-A
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Funding
- NCI NIH HHS [R01 CA084176-07, R01 CA084176] Funding Source: Medline
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To evaluate whether there is a correlation between the subcellular localization of maspin and the histological, molecular and biological features of pulmonary adenocarcinoma, particularly addressing the hypothesis that the tumour inhibitor properties of maspin may be linked to a nuclear, compared with a combined nuclear and cytoplasmic expression pattern. The subcellular expression of maspin was determined in 80 resected pulmonary adenocarcinomas (Stage I, 46; Stage II, 10; Stage III, 20; Stage IV, 4) and correlated with histological grade, proliferative rate, p53 expression, vascular endothelial growth factor (VEGF)-A levels, and prognosis (mean follow-up of 41.5 months). Cases with nuclear (N) maspin (n = 47), compared with the [N + cytoplasmic (C)] group (n = 28), showed lower (P <= 0.05): histological grade, proliferative rate, p53 expression and VEGF-A levels. Cox multivariate analysis revealed in stage I adenocarcinomas (N) maspin as the only predictor of improved survival. (N) maspin selects lung adenocarcinomas with distinct molecular and clinical features, supporting the hypothesis that its tumour inhibitor properties may be linked to its nuclear localization.
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