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Siva 1 Inhibits Cervical Cancer Progression and Its Clinical Prognosis Significance
Ting Liu1, Yifei Ma2, Zhiling Wang1
1Department of Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, People's Republic of China.
Background:
Cervical cancer is the second most common female malignancies. But the exact etiology of cervical cancer is still under investigation. Recent observations revealed that the loss expression of Siva 1 was related to several different types of tumors. It could play an indispensable role in both exogenous and endogenous apoptotic signaling pathways. Nevertheless, the relationship between Siva 1 expression and cervical cancer progression has not yet been fully clarified. This study aimed to explore the functional role of Siva1 in cervical cancer.
Materials And Methods:
In this present experiment, expression of Siva 1 was detected in 87 cervical cancer, 34 CIN and 20 normal samples by immunohistochemistry. The correlation of Siva 1 expression and overall survival times (OS) was analyzed by Kaplan-Meier analysis. We up-regulated the expression of Siva 1 by plasmid pCMV3-Siva 1 in C33A cells. CCK8, flow cytometry, wound-healing, and transwell assays were performed to examine the influences of Siva 1 expression on cell proliferation, apoptosis, migration and invasion.
Results:
The expression of Siva 1 was decreased in cervical cancer tissues compared with CIN and normal tissues. In addition, the Siva 1 immunoreactivity was significantly associated with tumor differentiation. Patients with Siva 1 negative staining exhibited a significantly decreased overall survival. Then, we established stable Siva 1 ectopic expression cells, and we found that elevated expression of Siva 1 promoted apoptosis, inhibited proliferation, and suppressed migration and invasion of cervical cancer cells.
Conclusion:
The present study revealed a crucial role of Siva 1 in tumor progression and it may be a valuable prognostic indicator of cervical cancer.
Insights
Reduced Siva 1 expression correlates with cervical cancer progression and poorer survival. Restoring Siva 1 (Suppressor of IKK and VDAC interacting protein 1) inhibits tumor cell proliferation, migration, and invasion, suggesting its potential as a prognostic marker.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Background:
- Cervical cancer is a leading female malignancy with unclear etiology.
- Loss of Siva 1 (Suppressor of IKK and VDAC interacting protein 1) expression is linked to various tumors.
- The role of Siva 1 in cervical cancer progression requires further elucidation.
Purpose of the Study:
- To investigate the functional role of Siva 1 in cervical cancer.
- To determine if Siva 1 expression serves as a prognostic indicator.
Main Methods:
- Immunohistochemistry used to detect Siva 1 expression in 87 cervical cancer, 34 CIN, and 20 normal samples.
- Kaplan-Meier analysis assessed the correlation between Siva 1 expression and overall survival.
- Functional assays (CCK8, flow cytometry, wound-healing, Transwell) evaluated Siva 1's impact on cell proliferation, apoptosis, migration, and invasion after ectopic expression.
Main Results:
- Siva 1 expression was significantly decreased in cervical cancer tissues compared to CIN and normal tissues.
- Lower Siva 1 immunoreactivity correlated with poor tumor differentiation and decreased overall survival.
- Elevated Siva 1 expression promoted apoptosis and suppressed proliferation, migration, and invasion in cervical cancer cells.
Conclusions:
- Siva 1 plays a critical role in regulating cervical cancer progression.
- Siva 1 may serve as a valuable prognostic biomarker for cervical cancer.
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