Human Gene Set: VANTVEER_BREAST_CANCER_BRCA1_UP


Standard name VANTVEER_BREAST_CANCER_BRCA1_UP
Systematic name M16737
Brief description Up-regulated genes from the optimal set of 100 markers discriminating ER(-) breast cancer tumors by BRCA1 [GeneID=672] mutation status.
Full description or abstract Breast cancer patients with the same stage of disease can have markedly different treatment responses and overall outcome. The strongest predictors for metastases (for example, lymph node status and histological grade) fail to classify accurately breast tumours according to their clinical behaviour. Chemotherapy or hormonal therapy reduces the risk of distant metastases by approximately one-third; however, 70-80% of patients receiving this treatment would have survived without it. None of the signatures of breast cancer gene expression reported to date allow for patient-tailored therapy strategies. Here we used DNA microarray analysis on primary breast tumours of 117 young patients, and applied supervised classification to identify a gene expression signature strongly predictive of a short interval to distant metastases ('poor prognosis' signature) in patients without tumour cells in local lymph nodes at diagnosis (lymph node negative). In addition, we established a signature that identifies tumours of BRCA1 carriers. The poor prognosis signature consists of genes regulating cell cycle, invasion, metastasis and angiogenesis. This gene expression profile will outperform all currently used clinical parameters in predicting disease outcome. Our findings provide a strategy to select patients who would benefit from adjuvant therapy.
Collection C2: Curated
      CGP: Chemical and Genetic Perturbations
Source publication Pubmed 11823860   Authors: van 't Veer LJ,Dai H,van de Vijver MJ,He YD,Hart AA,Mao M,Peterse HL,van der Kooy K,Marton MJ,Witteveen AT,Schreiber GJ,Kerkhoven RM,Roberts C,Linsley PS,Bernards R,Friend SH
Exact source Table 4S: top 100 with |correlation| > 0.3 & correlation > 0.3
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Source species Homo sapiens
Contributed by Arthur Liberzon (MSigDB Team)
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identifier namespace		 HUMAN_SEQ_ACCESSION
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