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- W4361822727 abstract "<div>Abstract<p><b>Background:</b> Although cigarette smoking is the major risk factor for lung cancer, only 7% of female lung cancer patients in Taiwan have a history of smoking. The genetic mechanisms of carcinogenesis in nonsmokers are unclear, but semaphorins have been suggested to play a role as lung tumor suppressors. This report is a comprehensive analysis of the molecular signature of nonsmoking female lung cancer patients in Taiwan, with a particular focus on the semaphorin gene family.</p><p><b>Methods:</b> Sixty pairs of tumor and adjacent normal lung tissue specimens were analyzed by using Affymetrix U133plus2.0 expression arrays. Differentially expressed genes in tumor tissues were identified by a paired <i>t</i> test and validated by reverse transcriptase-PCR and immunohistochemistry. Functional analysis was conducted by using Ingenuity Pathway Analysis as well as gene set enrichment analysis and sigPathway algorithms. Kaplan-Meier survival analyses were used to evaluate the association of <i>SEMA5A</i> expression and clinical outcome.</p><p><b>Results:</b> We identified 687 differentially expressed genes in non–small cell lung carcinoma (NSCLC). Many of these genes, most notably the semaphorin family, were participants in the axon guidance signaling pathway. The downregulation of <i>SEMA5A</i> in tumor tissue, both at the transcriptional and translational levels, was associated with poor survival among nonsmoking women with NSCLC.</p><p><b>Conclusions:</b> In summary, several semaphorin gene family members were identified as potential therapeutic targets, and <i>SEMA5A</i> may be useful as a prognostic biomarker for NSCLC, which may also be gender specific in Taiwanese patients.</p><p><b>Impact:</b> A novel biomarker for NSCLC is identified. Cancer Epidemiol Biomarkers Prev; 19(10); 2590–7. ©2010 AACR.</p></div>" @default.
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- W4361822727 date "2023-03-31" @default.
- W4361822727 modified "2023-10-06" @default.
- W4361822727 title "Data from Identification of a Novel Biomarker, <i>SEMA5A</i>, for Non–Small Cell Lung Carcinoma in Nonsmoking Women" @default.
- W4361822727 doi "https://doi.org/10.1158/1055-9965.c.6514761.v1" @default.
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