Expression of Bcl-2 in Breast Cancer: Correlation with Clinicopathological Characteristics and Survival
Filip Čečka,
Helena Hornychová,
Bohuslav Melichar,
Aleš Ryška,
Pavel Jandík,
Jindřiška Mergancová,
Hana Klozová-Urminská
Affiliations
Filip Čečka
Charles University in Prague, Faculty of Medicine and University Hospital Hradec Králové, Department of Surgery, Hradec Králové, Czech Republic
Helena Hornychová
Charles University in Prague, Faculty of Medicine and University Hospital Hradec Králové, The Fingerland Department of Pathology, Hradec Králové, Czech Republic
Bohuslav Melichar
Charles University in Prague, Faculty of Medicine and University Hospital Hradec Králové, Department of Oncology and Radiotherapy, Hradec Králové, Czech Republic
Aleš Ryška
Charles University in Prague, Faculty of Medicine and University Hospital Hradec Králové, The Fingerland Department of Pathology, Hradec Králové, Czech Republic
Pavel Jandík
Charles University in Prague, Faculty of Medicine and University Hospital Hradec Králové, Department of Surgery, Hradec Králové, Czech Republic
Jindřiška Mergancová
Charles University in Prague, Faculty of Medicine and University Hospital Hradec Králové, Department of Surgery, Hradec Králové, Czech Republic
Hana Klozová-Urminská
Charles University in Prague, Faculty of Medicine and University Hospital Hradec Králové, Department of Radiology, Hradec Králové, Czech Republic
Breast cancer is the most common malignancy in women. It is an immensely heterogeneous disease, characterised by a broad variety of clinical development. The research in recent years has focused on finding new markers of prognosis. This study investigates the role of expression of the bcl-2 protein in breast cancer. We analysed bcl-2 expression in 57 women with primary breast carcinoma who were treated with neoadjuvant (primary) chemotherapy, followed by a surgical procedure. The bcl-2 expression was correlated with other clinicopathological characteristics of the tumour – histological grade, stage, expression of hormonal receptors, proliferation rate, and with the survival of the patients. No significant association of bcl-2 expression with either overall survival or disease free survival was found.