1. Polycomb Protein BMI-1 as a Potential Therapeutic Target in Mucinous Ovarian Cancer
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SALEM ABOBAKER, HAGEN KULBE, ELIANE T. TAUBE, SILVIA DARB-ESFAHANI, ROLF RICHTER, CARSTEN DENKERT, PAUL JANK, JALID SEHOULI, and ELENA IOANA BRAICU
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Ovarian Neoplasms ,Polycomb Repressive Complex 1 ,Cancer Research ,Oncology ,Humans ,Female ,General Medicine ,Carcinoma, Ovarian Epithelial ,Adenocarcinoma, Mucinous ,Body Mass Index - Abstract
Mucinous ovarian carcinoma (mOC) is a rare subtype with distinct clinical characteristics and biological behavior that differentiate them from other epithelial ovarian cancers. This study aimed to evaluate BMI-1 expression as a potential target for therapeutic approaches in advanced stage mOC.We performed gene set, as well as transcription factor enrichment analysis and immunohistochemistry assessing of the BMI-1 protein levels in tissue specimens of eighteen mucinous ovarian cancer patients. To validate the clinical relevance of the findings, we performed cell viability assays and western blot analysis utilizing high-grade serous (HGSC) and mOC cell lines.BMI1 expression was not significantly associated with patient age, FIGO stage, lymph node status, and family history. With regard to progression-free survival, there was also no significant association (p=0.418). Cell viability was significant decreased in response to carboplatin in HGSC cells TYK-nu and OVHASO, and in mOC cell lines COV644 and EFO-27. Western blot analysis demonstrated various expression levels across all cell lines.BMI-1 could be a useful potential therapeutic target in some ovarian cancer patients, including mOC patients.
- Published
- 2022
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