Int. J. Mol. Sci. 2012, 13(12), 15588-15600; doi:10.3390/ijms131215588
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Elevated Levels of Lewis Y and Integrin α5β1 Correlate with Chemotherapeutic Drug Resistance in Epithelial Ovarian Carcinoma

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Received: 22 October 2012; in revised form: 9 November 2012 / Accepted: 12 November 2012 / Published: 23 November 2012
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Objective: To measure Lewis y and integrin α5β1 expression in epithelial ovarian carcinoma and to correlate the levels of these molecules with ovarian carcinoma chemotherapy and prognosis. Methods: The study population included 34 ovarian carcinoma patients with chemotherapeutic drug-resistance, six partially drug-sensitive cases, and 52 drug-sensitive cases (92 total). Immunochemistry was used to determine expression of Lewis y antigen and integrin α5β1 in ovarian carcinoma tissues, and correlation of these molecules with chemotherapy resistance was further investigated, Multi-factor logistic regression analysis was applied to investigate: age, surgical stage, grade, subtype of patient cases, metastasis of lymph nodes, residual tumor size, expression levels of Lewis y antigen and integrin α5β1 correlation with ovarian carcinoma chemotherapy resistance. Results: The expression rates of Lewis y antigen and integrins α5 and β1 were significantly greater in the drug-resistant group (91.17%, 85.29%, 88.24%) than the partially sensitive (50.00%, 33.33%, 50.00%) or sensitive groups (61.54%, 57.69%, 55.77%). Binary logistic regression analysis revealed that surgical stage, residual tumor size, and expression of integrin α5 and Lewis y in ovarian carcinoma tissues were independent risk factors for chemotherapeutic drug resistance. Conclusions: Overexpression of Lewis y and integrin α5 are strong risk factors for chemotherapeutic drug resistance in ovarian carcinoma patients.
Keywords: integrins; Lewis y antigen; ovarian caricinoma; chemoresistance
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MDPI and ACS Style

Hu, Z.; Gao, S.; Gao, J.; Hou, R.; Liu, C.; Liu, J.; Li, B.; Liu, D.; Zhang, S.; Lin, B. Elevated Levels of Lewis Y and Integrin α5β1 Correlate with Chemotherapeutic Drug Resistance in Epithelial Ovarian Carcinoma. Int. J. Mol. Sci. 2012, 13, 15588-15600.

AMA Style

Hu Z, Gao S, Gao J, Hou R, Liu C, Liu J, Li B, Liu D, Zhang S, Lin B. Elevated Levels of Lewis Y and Integrin α5β1 Correlate with Chemotherapeutic Drug Resistance in Epithelial Ovarian Carcinoma. International Journal of Molecular Sciences. 2012; 13(12):15588-15600.

Chicago/Turabian Style

Hu, Zhenhua; Gao, Song; Gao, Jian; Hou, Rui; Liu, Chuan; Liu, Juanjuan; Li, Beibei; Liu, Dawo; Zhang, Shulan; Lin, Bei. 2012. "Elevated Levels of Lewis Y and Integrin α5β1 Correlate with Chemotherapeutic Drug Resistance in Epithelial Ovarian Carcinoma." Int. J. Mol. Sci. 13, no. 12: 15588-15600.

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