Abstract
Background: Galectin-7 (GAL-7) has been highlighted as an important marker in many types of cancers by either inhibiting or promoting tumor growth. In this novel study, we assessed the association of GAL-7 with clinicopathological variables and survival outcomes in epithelial ovarian cancer (EOC) and investigated the role of GAL-7 in proliferation of ovarian cancer cell lines. Materials and Methods: The expression of GAL-7 was determined in 63 formalin-fixed, paraffin-embedded EOC tissues using an immunohistochemical method and we compared various associated clinicopathological factors. To evaluate the role of GAL-7 in cell proliferation, we performed proliferation assays with GAL-7 siRNA using ovarian cancer cell lines, including A2780-PAR cells. Results: Immunohistochemical analysis revealed that GAL-7 expression was primarily detected in nuclei and occasionally in the nucleus and cytoplasm. High GAL-7 expression was associated with greater age (p=0.016), high mortality (p=0.025), and poor overall survival outcome (p=0.029). In addition, the residual tumor volume was larger in the high-expression group compared to the low-expression group, although the difference was not statistically significant (p=0.059). Down-regulation of GAL-7 using siRNA resulted in the inhibition of cell proliferation of A2780-PAR cells. Conclusion: We observed that high GAL-7 might be associated with poor survival outcome in patients with EOC, and may be functionally involved in cell proliferation.
| Original language | English |
|---|---|
| Pages (from-to) | 1555-1562 |
| Number of pages | 8 |
| Journal | Anticancer research |
| Volume | 33 |
| Issue number | 4 |
| Publication status | Published - 2013 Apr |
Keywords
- Galectin-7
- Ovarian cancer
- Prognosis
- SiRNA
ASJC Scopus subject areas
- Oncology
- Cancer Research
