Abstract
Abnormal c-Src expression and activation has been observed in a number of tumors. To determine the therapeutic potential of Src inhibitors for ovarian cancer patients, this study aimed to explore the expression patterns of c-Src and phospho-Src in epithelial ovarian cancer. A total of 82 patients with epithelial ovarian cancer treated at Sun Yat-sen University Cancer Center from January 1999 to December 2005 were enrolled along with 25 patients with benign ovarian lesions; 20 normal ovarian tissues served as controls. Expression of c-Src and phospho-Src (Tyr416) was examined using immunohistochemistry. Survival analyses were performed using Kaplan–Meier curves. As compared to the control group, a significantly greater proportion of ovarian cancer tissues were positive for c-Src and phospho-Src expression (P < 0.001). c-Src expression was associated with age, while phospho-Src expression was significantly associated with age, FIGO stage, histology grade, and residual tumor size after surgery (all P < 0.05). The mean survival time was associated with phospho-Src expression, but not with c-Src expression. The mean survival times of patients with phospho-Src-positive tumors were significantly greater than those with phospho-Src-negative tumors (87.4 months, 95 % CI = 74.3–100.5 months and 91.5 months, 95 % CI = 84.7–98.2 months, respectively; P = 0.013). The increased c-Src expression and activation in epithelial ovarian cancer suggests that ovarian cancer patients may benefit from tyrosine kinase inhibitors such as Dasatinib. Activation of c-Src through phosphorylation at Tyr416 may play a role in the early stages of ovarian cancer development, and evaluation of its expression may be a useful prognostic marker of epithelial ovarian cancer.
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Abbreviations
- VEGF:
-
Vascular endothelial growth factor
- DAB:
-
Diaminobenzidine tetrahydrochloride
- FIGO:
-
The International Federation of Gynecology and Obstetrics
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This study was funded by research grants from the Technology Project of Guangdong Province (No. 2009B030801021). The study sponsors had no role in the study.
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Yong-Wen Huang and Chen Chen contributed equally to this work as co-first authors
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Huang, YW., Chen, C., Xu, MM. et al. Expression of c-Src and phospho-Src in epithelial ovarian carcinoma. Mol Cell Biochem 376, 73–79 (2013). https://doi.org/10.1007/s11010-012-1550-1
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DOI: https://doi.org/10.1007/s11010-012-1550-1