Prognostic implications of securin expression and sub-cellular localization in human breast cancer

Autor: Teijo Kuopio, Eliisa Löyttyniemi, J Anttinen, Kati Talvinen, Pauliina Kronqvist, Heli Repo, Natalia Gurvits, Marjukka Nykänen
Rok vydání: 2016
Předmět:
Zdroj: Cellular Oncology. 39:319-331
ISSN: 2211-3436
2211-3428
DOI: 10.1007/s13402-016-0277-5
Popis: Securin belongs to a class of cell cycle regulators that prevent metaphase-to-anaphase transition until sister chromatid separation is complete. Evidence is accumulating that securin has a prognostic impact on a variety of malignancies but, thus far, the role and regulation of securin expression and its sub-cellular localization have not been systematically addressed in breast cancer. In total 470 breast cancer specimens with follow-up data for up to 22 years were included. Immunohistochemical staining and immunofluorescence double-staining were performed for securin and its regulating proteins PTTG1IP, CDC20 and BUBR1. Prognostic associations were evaluated between the expression patterns of these proteins and established prognosticators of invasive breast cancer and patient survival. We found that a high fraction of securin expressing cancer cells predicted an unfavorable clinical outcome of the breast cancer patients (p
Databáze: OpenAIRE