Sökning: L773:0167 6806 OR L773:1573 7217 >
Role of cyclin D1 i...
Role of cyclin D1 in ErbB2-positive breast cancer and tamoxifen resistance.
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- Ahnström Waltersson, Marie, 1976- (författare)
- Linköpings universitet,Onkologi,Hälsouniversitetet
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- Nordenskjöld, Bo (författare)
- Östergötlands Läns Landsting,Linköpings universitet,Onkologi,Hälsouniversitetet,Hematologiska kliniken US
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- Rutqvist, Lars Erik (författare)
- Department of Oncology, Huddinge University Hospital, Stockholm, Sweden
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- Skoog, Lambert (författare)
- Karolinska Institutet
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- Stål, Olle (författare)
- Östergötlands Läns Landsting,Linköpings universitet,Onkologi,Hälsouniversitetet,Onkologiska kliniken US
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(creator_code:org_t)
- Springer Science and Business Media LLC, 2005
- 2005
- Engelska.
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Ingår i: Breast Cancer Research and Treatment. - : Springer Science and Business Media LLC. - 0167-6806 .- 1573-7217. ; 91:2, s. 145-151
- Relaterad länk:
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http://urn.kb.se/res...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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http://kipublication...
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Abstract
Ämnesord
Stäng
- Cyclin D1 plays an important role in the regulation of the G1 phase in the cell cycle. In mammary epithelial cells the expression of cyclin D1 is regulated through the oestrogen receptor and via ErbB2 signalling. Here we investigated the prognostic significance of cyclin D1 among 230 breast cancer patients randomised for tamoxifen, CMF chemotherapy and radiotherapy. The importance of combined cyclin D1 and ErbB2 overexpression was also analysed. Immunohistochemical analysis of the cyclin D1 expression resulted in 69 (29.8%) weakly positive, 107 (46.5%) moderately positive and 54 (23.7%) strongly positive cases. The prognostic importance of ErbB2 was significantly greater for patients whose tumours overexpressed cyclin D1 than for other patients (p = 0.026). In the former group, ErbB2 overexpression was strongly associated with increased risk of recurrence (RR = 4.7; 95% CI, 2.1-10.4) and breast cancer death (RR = 5.4; 95% CI, 2.3-12.6). This result is in accordance with experimental studies demonstrating a link between cyclin D1 and ErbB2 in oncogenesis. Among oestrogen receptor positive patients, those with moderate cyclin D1 expression significantly did benefit from tamoxifen treatment (RR = 0.42; 95% CI, 0.21-0.82) whereas those with weak or strong expression did not. Therefore cyclin D1 might be a predictive marker for tamoxifen resistance.
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- MEDICINE
- MEDICIN
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