Presence of bone marrow micrometastasis is associated with different recurrence risk within molecular subtypes of breast cancer

被引:118
作者
Naume, Bjorn [2 ]
Zhao, Xi [1 ]
Synnestvedt, Marit [2 ]
Borgen, Elin [3 ]
Russnes, Hege Giercksky [3 ]
Lingjaerde, Ole Christian [4 ]
Stromberg, Maria [1 ]
Wiedswang, Gro [5 ]
Kvalheim, Gunnar [6 ]
Karesen, Rolf [5 ]
Nesland, Jahn M. [3 ,7 ]
Borresen-Dale, Anne-Lise [1 ,7 ]
Sorlie, Therese [1 ,4 ]
机构
[1] Natl Hosp Norway, Radiumhosp, Med Ctr, Inst Canc Res,Dept Genet, N-0310 Oslo, Norway
[2] Natl Hosp Norway, Radiumhosp, Med Ctr, Canc Clin, N-0310 Oslo, Norway
[3] Natl Hosp Norway, Radiumhosp, Med Ctr, Pathol Clin, N-0310 Oslo, Norway
[4] Univ Oslo, Fac Math & Nat Sci, Inst Informat, N-0316 Oslo, Norway
[5] Ullevaal Univ Hosp, Dept Surg, Oslo, Norway
[6] Natl Hosp Norway, Radiumhosp, Med Ctr, Canc Clin,Lab Cellular Therapy, N-0310 Oslo, Norway
[7] Univ Oslo, Fac Med, N-0316 Oslo, Norway
关键词
DNA microarrays; Breast cancer; Micrometastases in bone marrow; Molecular subtypes; Clinical outcome;
D O I
10.1016/j.molonc.2007.03.004
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Expression profiles of primary breast tumors were investigated in relation to disseminated tumor cells (DTCs) in bone marrow (BM) in order to increase our understanding of the dissemination process. Tumors were classified into five pre-defined molecular subtypes, and presence of DTC identified (at median 85 months follow-up) a subgroup of luminal A patients with particular poor outcome (p = 0.008). This was not apparent for other tumor subtypes. Gene expression profiles associated with DTC and with systemic relapse for luminal A patients were identified. This study suggests that DTC in BM differentially distinguishes clinical outcome in patients with luminal A type tumors and that DTC-associated gene expression analysis may identify genes of potential importance in tumor dissemination. (C) 2007 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:160 / 171
页数:12
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