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Estrogen Receptor Status Oppositely Modifies Breast Cancer Prognosis in BRCA1/BRCA2 Mutation Carriers Versus Non-Carriers

M. Vocka, M. Zimovjanova, Z. Bielcikova, P. Tesarova, L. Petruzelka, M. Mateju, L. Krizova, J. Kotlas, J. Soukupova, M. Janatova, P. Zemankova, P. Kleiblova, J. Novotny, B. Konopasek, M. Chodacka, M. Brychta, M. Sochor, D. Smejkalova-Musilova, V....

. 2019 ; 11 (6) : . [pub] 20190528

Jazyk angličtina Země Švýcarsko

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/bmc19028955

Grantová podpora
NV15-28830A MZ0 CEP - Centrální evidence projektů
PROGRES Q28/LF1 Univerzita Karlova v Praze
SVV2018/260367 Univerzita Karlova v Praze

Breast cancer (BC) prognosis in BRCA1 and BRCA2 mutation carriers has been reported contradictorily, and the significance of variables influencing prognosis in sporadic BC is not established in BC patients with hereditary BRCA1/BRCA2 mutations. In this retrospective cohort study, we analyzed the effect of clinicopathological characteristics on BC prognosis (disease-free survival [DFS] and disease-specific survival [DSS]) in hereditary BRCA1/BRCA2 mutation carriers. We enrolled 234 BRCA1/BRCA2 mutation carriers and 899 non-carriers, of whom 191 carriers and 680 non-carriers, with complete data, were available for survival analyses. We found that patients with ER-positive tumors developed disease recurrence 2.3-times more likely when they carried a BRCA1/BRCA2 mutation (23/60; 38.3% ER-positive carriers vs. 74/445; 16.6% ER-positive non-carriers; p < 0.001). ER-positive mutation carriers also had a 3.4-times higher risk of death due to BC compared with ER-positive non-carriers (13/60; 21.7% vs. 28/445; 6.3%; p < 0.001). Moreover, prognosis in ER-negative BRCA1/BRCA2 mutation carriers was comparable with that in ER-positive non-carriers. Our study demonstrates that ER-positivity worsens BC prognosis in BRCA1/BRCA2 mutation carriers, while prognosis for carriers with ER-negative tumors (including early-onset) is significantly better and comparable with that in ER-positive, older BC non-carriers. These observations indicate that BRCA1/BRCA2 mutation carriers with ER-positive BC represent high-risk patients.

Department of Oncology 1st Faculty of Medicine Charles University and General University Hospital U Nemocnice 499 2 128 00 Prague 2 Czech Republic

Department of Oncology 1st Faculty of Medicine Charles University and Thomayer Hospital Videnska 800 140 59 Prague 4 Czech Republic

Department of Oncology 2nd Faculty of Medicine Charles University and Motol University Hospital 5 Uvalu 84 150 06 Prague 5 Czech Republic

Department of Oncology Chomutov Hospital Kochova 1185 430 01 Chomutov Czech Republic

Department of Oncology Masaryk Hospital Socialni pece 3316 12 401 13 Usti nad Labem Czech Republic

Department of Oncology Medicon Roskotova 1717 2 140 00 Prague 4 Czech Republic

Department of Oncology Vzdusna 1360 6 460 01 Liberec Czech Republic

Department of Radiotherapy and Oncology 3rd Faculty of Medicine Charles University and Faculty Hospital Kralovske Vinohrady Srobarova 1150 50 100 34 Prague 10 Czech Republic

Department of Surgery Sunderby Hospital Sjukhusvägen 10 954 42 Sunderbyn Sweden

Institute of Biochemistry and Experimental Oncology 1st Faculty of Medicine Charles University U Nemocnice 5 128 00 Prague 2 Czech Republic

Institute of Biology and Medical Genetics 1st Faculty of Medicine Charles University and General University Hospital Albertov 4 128 00 Prague 2 Czech Republic

Institute of Biology and Medical Genetics 1st Faculty of Medicine Charles University and General University Hospital Albertov 4 128 00 Prague 2 Czech Republic Institute of Biochemistry and Experimental Oncology 1st Faculty of Medicine Charles University U Nemocnice 5 128 00 Prague 2 Czech Republic

Institute of Radiation Oncology 1st Faculty of Medicine Charles University and Hospital Na Bulovce Budinova 2 180 00 Prague 8 Czech Republic

Citace poskytuje Crossref.org

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$a Breast cancer (BC) prognosis in BRCA1 and BRCA2 mutation carriers has been reported contradictorily, and the significance of variables influencing prognosis in sporadic BC is not established in BC patients with hereditary BRCA1/BRCA2 mutations. In this retrospective cohort study, we analyzed the effect of clinicopathological characteristics on BC prognosis (disease-free survival [DFS] and disease-specific survival [DSS]) in hereditary BRCA1/BRCA2 mutation carriers. We enrolled 234 BRCA1/BRCA2 mutation carriers and 899 non-carriers, of whom 191 carriers and 680 non-carriers, with complete data, were available for survival analyses. We found that patients with ER-positive tumors developed disease recurrence 2.3-times more likely when they carried a BRCA1/BRCA2 mutation (23/60; 38.3% ER-positive carriers vs. 74/445; 16.6% ER-positive non-carriers; p < 0.001). ER-positive mutation carriers also had a 3.4-times higher risk of death due to BC compared with ER-positive non-carriers (13/60; 21.7% vs. 28/445; 6.3%; p < 0.001). Moreover, prognosis in ER-negative BRCA1/BRCA2 mutation carriers was comparable with that in ER-positive non-carriers. Our study demonstrates that ER-positivity worsens BC prognosis in BRCA1/BRCA2 mutation carriers, while prognosis for carriers with ER-negative tumors (including early-onset) is significantly better and comparable with that in ER-positive, older BC non-carriers. These observations indicate that BRCA1/BRCA2 mutation carriers with ER-positive BC represent high-risk patients.
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