Immunohistochemical expression and prognostic relevance of Bmi-1, a stem cell factor,in epithelial ovarian cancer |
| |
| Affiliation: | 1. Pathology Department, Faculty of Medicine, Mansoura University, Egypt;2. Clinical Oncology and Nuclear Medicine Department, Faculty of Medicine, Mansoura University, Egypt;1. Pathology Department, Faculty of Medicine, Mansoura University, Egypt;2. Clinical Oncology and Nuclear Medicine Department, Faculty of Medicine, Mansoura University, Egypt;1. Department of Pathology, Tata Memorial Hospital, Mumbai, India;2. Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA;3. Thoracic Surgery Services, Department of Surgical Oncology, Tata Memorial Hospital, Mumbai, India;4. Department of Radiation Oncology, Tata Memorial Hospital, Mumbai, India;5. Department of Medical Records, Biostatistics & Epidemiology, Tata Memorial Hospital, Mumbai, India;1. Institute of Biochemistry and Biotechnology, Chung Shan Medical University, Taichung, Taiwan;2. Clinical Laboratory, Chung Shan Medical University Hospital, Taichung, Taiwan;3. Department of Pathology, Changhua Christian Hospital, Changhua, Taiwan;4. Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan;5. School of Medicine, Chung Shan Medical University, Taichung, Taiwan;6. Department of Gastroenterology, Changhua Christian Hospital, Changhua, Taiwan;1. Department of Neurology, University Medical Centre Ljubljana, Slovenia;2. Department of Vascular Neurology and Intensive Therapy, University Medical Centre Ljubljana, Slovenia;3. Institute of Clinical Neurophysiology, University Medical Centre Ljubljana, Slovenia;4. Department de Neurologia, Hospital Clínic, Villarroel 170, Barcelona 08036, Spain |
| |
| Abstract: | Ovarian cancer is the fourth most common cause of cancer-related death in women. Bmi-1 is a stem cell factor implicated in many human malignancies with poor outcome. Few published reports on the expression of Bmi-1 in epithelial ovarian cancer were either experimental or performed on cell lines. This study evaluates the immunohistochemical expression of Bmi-1 protein in epithelial ovarian cancer tissue specimens and its relevance to the clinicopathologic prognostic variables and patient survival. Forty cases of epithelial ovarian cancer were selected according to the availability of paraffin-embedded tissue and the clinicopathologic and survival data. Immunohistochemistry was performed for anti–Bmi-1 antibody. Low and high Bmi-1 expression groups were compared with age, tumor stage, laterality, grade, histology, and patient survival. Bmi-1 expression was detected in 72.5% of cases, of which 42.5% had high expression. High Bmi-1 expression strongly associated with advanced International Federation of Gynecology and Obstetrics stages (P = .007), bilaterality (P = .01), and higher Gynecologic Oncology Group grades (P = .031) and carcinomas of serous histology (P = .027). It had no association with patient age. Bmi-1 expression displayed a significant inverse association with patient overall and mean survival (P = .006, P < .001). These observations suggested correlation between increased Bmi-1 expression and clinical progression in ovarian epithelial cancer. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
