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RBBP6 Is Abundantly Expressed in Human Cervical Carcinoma and May Be Implicated in Its Malignant Progression
Zodwa Dlamini1, Thokozile Ledwaba2, Rodney Hull1
1Research, Innovation & Engagements Portfolio, Mangosuthu University of Technology, Durban, South Africa.
Biomarkers in Cancer
|March 20, 2019
Summary
RBBP6 protein is highly expressed in cervical cancer, correlating with increased apoptosis and malignant progression. This suggests RBBP6 as a potential therapeutic target for cervical cancer treatment.
Area of Science:
- Molecular biology
- Oncology
- Cell biology
Background:
- RBBP6 (Retinoblastoma-binding protein 6) encodes splicing-associated proteins with known roles in apoptosis and cell cycle regulation.
- RBBP6 protein isoforms interact with p53 and Rb, key tumor suppressors.
- While RBBP6 expression is noted in various cancers, its role in cervical cancer remains understudied.
Purpose of the Study:
- To determine RBBP6 expression levels and tissue distribution in cervical cancer at both protein and mRNA levels.
- To investigate the correlation between RBBP6 expression, apoptosis, and cervical cancer progression.
- To explore RBBP6 as a potential therapeutic target in cervical cancer.
Main Methods:
- Immunocytochemistry was used to detect RBBP6 protein expression.
- In situ hybridization (ISH) was employed to analyze RBBP6 mRNA distribution.
- TUNEL assays were performed to assess apoptosis levels.
Main Results:
- RBBP6 mRNA was detected in both normal and tumor cervical epithelium, with higher expression in moderately differentiated and invasive carcinomas.
- Immunolabeling and ISH results confirmed abundant RBBP6 expression in cervical tumors.
- Apoptosis assays showed a positive correlation between RBBP6 gene expression and apoptosis in all cases.
Conclusions:
- This study is the first to report abundant RBBP6 expression in cervical cancer.
- RBBP6 expression is linked to the malignant progression of cervical cancer and is associated with pro-apoptotic activity.
- RBBP6 proteins represent a promising target for therapeutic interventions in cervical cancer.
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