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Tumor suppressor in lung cancer 1 gene expression in epithelial ovarian cancer
Hongmei Qu, Feixue Xu1, Yana Bai2
1Obstetrics and Gynecology, The First Affiliated Hospital of Lanzhou University, Lanzhou 730000, China.
Objectives:
Loss of Tumor Suppressor in Lung Cancer 1(TSLC1) was observed in many different cancers, but there were only limited research on TSLC1 gene and its roles in cancer suppression in ovarian cancer. This study explores the relationship between TSLC1 gene expression and the ovarian epithelial cancer.
Materials And Methods:
Expression levels of TSLC1 were detected by immunohistochemical staining on formal-fixed paraffin embedded pathological specimen. A total of 259 samples were collected, including 24 benign ovarian tumor and 235 malignant ovarian cancers among them.
Results:
Suppressed expression of TSLC1 protein was observed in 87.8% of poorly differentiated, 85.1% of moderately differentiated, and 46% of well differentiated ovarian epithelial cancers, respectively. There were none suppressed TSLC1 expression in benign ovarian tumor. Kruskal-Wallis test showed a significant association between the expression levels of TSLC1 gene and the degree of ovarian cancer differentiation (P < 0.001).
Conclusions:
Decreased expression of TSLC1 is associated with the differentiation in ovarian epithelial cancer. TSLC1 might be used as a molecular marker of severity in early stage ovarian cancer, and to help differentiating benign and malignant ovarian tumors.
Insights
Reduced expression of Tumor Suppressor in Lung Cancer 1 (TSLC1) correlates with ovarian cancer severity. This finding suggests TSLC1 may serve as a biomarker for differentiating benign and malignant ovarian tumors.
Area of Science:
- Oncology
- Molecular Biology
- Gynecologic Pathology
Background:
- Tumor Suppressor in Lung Cancer 1 (TSLC1) loss is implicated in various cancers.
- Limited research exists on TSLC1's role in ovarian cancer suppression.
Purpose of the Study:
- To investigate the relationship between TSLC1 gene expression and ovarian epithelial cancer.
- To explore TSLC1 as a potential biomarker in ovarian cancer.
Main Methods:
- Immunohistochemical staining was used to detect TSLC1 protein expression.
- 259 ovarian tissue samples (24 benign, 235 malignant) were analyzed.
Main Results:
- TSLC1 expression was suppressed in 46-87.8% of ovarian epithelial cancers, varying by differentiation.
- No suppressed TSLC1 expression was found in benign ovarian tumors.
- A significant association (P < 0.001) was found between TSLC1 levels and cancer differentiation.
Conclusions:
- Decreased TSLC1 expression is linked to ovarian epithelial cancer differentiation.
- TSLC1 may function as a molecular marker for ovarian cancer severity.
- TSLC1 could aid in distinguishing benign from malignant ovarian tumors.
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