Vol 44, No 2 (2006)
Original paper
Submitted: 2011-12-19
Published online: 2006-06-30
Stromal myofibroblasts in breast cancer: relations between their occurrence, tumor grade and expression of some tumour markers.
Paweł Surowiak, Sławomir Suchocki, Balazs GyĂśrffy, Tserenchunt Gansukh, Andrzej Wojnar, Adam Maciejczyk, Marek Pudełko, Maciej Zabel
Folia Histochem Cytobiol 2006;44(2):111-116.
Vol 44, No 2 (2006)
ORIGINAL PAPERS
Submitted: 2011-12-19
Published online: 2006-06-30
Abstract
It is suggested that tumour stromal myofibroblasts exert an unfavourable effect on the biology of breast cancer. We are aware of only a single study which examined relationships between manifestation of myofibroblasts in the stroma of breast cancer and clinicopathological data of the patients. The present study was aimed at estimation of the effect exerted by myofibroblasts present in the tumour stroma on principal pathological parameters and on expression of Ki67, P53 and HER-2 proteins in the group of the most frequent breast cancers, the ductal cancers. In paraffin sections of 60 ductal breast cancers (20 cases in G1, 20 in G2 and 20 in G3), immunohistochemical reactions were performed to detect expression of smooth muscle actin (SMA) in order to visualize myofibroblasts, Ki67, P53 and HER-2. The studies demonstrated that the most numerous myofibroblasts were present in G3 cases and they were the least frequent in G1 cases (P = 0.02). Positive correlations were observed between the presence of myofibroblasts in tumour stroma and expression of Ki67 and HER-2 in breast cancer cells in the entire group (P < 0.001 and P = 0.001, respectively), in G2 cases (P = 0.003 and P = 0.03) and in G3 cases (P = 0.01 and P = 0.03). Considering that the higher grade, Ki67 and HER-2 are thought to represent unfavourable prognostic factors, the elevated content of myofibroblasts in tumour stroma is probably typical for cases with worse prognosis.
Abstract
It is suggested that tumour stromal myofibroblasts exert an unfavourable effect on the biology of breast cancer. We are aware of only a single study which examined relationships between manifestation of myofibroblasts in the stroma of breast cancer and clinicopathological data of the patients. The present study was aimed at estimation of the effect exerted by myofibroblasts present in the tumour stroma on principal pathological parameters and on expression of Ki67, P53 and HER-2 proteins in the group of the most frequent breast cancers, the ductal cancers. In paraffin sections of 60 ductal breast cancers (20 cases in G1, 20 in G2 and 20 in G3), immunohistochemical reactions were performed to detect expression of smooth muscle actin (SMA) in order to visualize myofibroblasts, Ki67, P53 and HER-2. The studies demonstrated that the most numerous myofibroblasts were present in G3 cases and they were the least frequent in G1 cases (P = 0.02). Positive correlations were observed between the presence of myofibroblasts in tumour stroma and expression of Ki67 and HER-2 in breast cancer cells in the entire group (P < 0.001 and P = 0.001, respectively), in G2 cases (P = 0.003 and P = 0.03) and in G3 cases (P = 0.01 and P = 0.03). Considering that the higher grade, Ki67 and HER-2 are thought to represent unfavourable prognostic factors, the elevated content of myofibroblasts in tumour stroma is probably typical for cases with worse prognosis.
Title
Stromal myofibroblasts in breast cancer: relations between their occurrence, tumor grade and expression of some tumour markers.
Journal
Folia Histochemica et Cytobiologica
Issue
Vol 44, No 2 (2006)
Article type
Original paper
Pages
111-116
Published online
2006-06-30
Page views
1813
Article views/downloads
1102
Bibliographic record
Folia Histochem Cytobiol 2006;44(2):111-116.
Authors
Paweł Surowiak
Sławomir Suchocki
Balazs GyĂśrffy
Tserenchunt Gansukh
Andrzej Wojnar
Adam Maciejczyk
Marek Pudełko
Maciej Zabel
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