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연세대학교 의과대학 Yonsei Medical Journal Yonsei Medical Journal 제57권 제4호
발행연도
2016.1
수록면
872 - 878 (7page)

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Purpose: Lymphatic invasion (LI) is regarded as a predictor of the aggressiveness of ovarian cancer (OC). However, LI is not alwaysthe major determinant of long-term patient survival. To establish proper diagnosis and treatment for OC, we analyzed differentiallyexpressed genes (DEGs) for patients with serous epithelial OC, with or without LI, who did or did not survive for 5 years. Materials and Methods: Gene expression data from 63 patients with OC and LI, and 35 patients with OC but without LI, were investigatedusing an Affymetrix Human Genome U133 Array and analyzed using The Cancer Genome Atlas (TCGA) database. Among these 98 patients, 16 survived for 5 years or more. DEGs were identified using the Bioconductor R package, and their functionswere analyzed using the DAVID web tool. Results: We found 55 significant DEGs (p<0.01) from the patients with LI and 20 highly significant DEGs (p<0.001) from thosewithout it. Pathway analysis showed that DEGs associated with carbohydrate metabolism or with renal cell carcinoma pathwayswere enriched in the patients with and without LI, respectively. Using the top five prognostic marker genes, we generated survivalscores that could be used to predict the 5-year survival of patients with OC without LI. Conclusion: The DEGs identified in this study could be used to elucidate the mechanism of tumor progression and to guide theprognosis and treatment of patients with serous OC but without LI.

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