Human Gene Set: YANG_BREAST_CANCER_ESR1_BULK_UP


Standard name YANG_BREAST_CANCER_ESR1_BULK_UP
Systematic name M10748
Brief description Genes up-regulated in bulk samples from early primary breast tumors expressing ESR1 [GeneID=2099] vs the ESR1 negative samples.
Full description or abstract About 70-80% of breast cancers express estrogen receptor alpha (ER-alpha), and estrogens play important roles in the development and growth of hormone-dependent tumors. Together with lymph node metastasis, tumor size, and histological grade, ER status is considered as one of the prognostic factors in breast cancer, and an indicator for hormonal treatment. To investigate genes and pathways that are associated with ER status and epithelial cells in breast tumor, we applied laser capture microdissection (LCM) technology to capture epithelial tumor cells from 28 lymph node-negative breast tumor samples, in which 17 patients had ER-alpha+ tumors, and 11 patients have ER-alpha- tumors. Gene expression profiles were analysed on Affymetrix Hu133A GeneChip. Meanwhile, gene profiles using total RNA isolated from bulk tumors of the same 28 patients were also generated. In total, 146 genes and 112 genes with significant P-value and having significant differential expression between ER-alpha+ and ER-alpha- tumors were identified from the LCM data set and bulk tissue data set, respectively. A total of 61 genes were found to be common in both data sets, while 85 genes were unique to the LCM data set and 51 genes were present only in the bulk tumor data set. Pathway analysis with the 85 genes using Gene Ontology suggested that genes involved in endocytosis, ceramide generation, Ras/ERK/Ark cascade, and JAT-STAT pathways may play roles related to ER. The gene profiling with LCM-captured tumor cells provides a unique approach to study epithelial tumor cells and to gain an insight into signaling pathways associated with ER.
Collection C2: Curated
      CGP: Chemical and Genetic Perturbations
Source publication Pubmed 16261164   Authors: Yang F,Foekens JA,Yu J,Sieuwerts AM,Timmermans M,Klijn JG,Atkins D,Wang Y,Jiang Y
Exact source Table 3S: Relative expression +
Related gene sets (show 5 additional gene sets from the source publication)

(show 82 gene sets from the same authors)
External links
Filtered by similarity ?
Source species Homo sapiens
Contributed by Leona Saunders (MSigDB Team)
Source platform or
identifier namespace		 HUMAN_SEQ_ACCESSION
Dataset references  
Download gene set format: grp | gmt | xml | json | TSV metadata
Compute overlaps ? (show collections to investigate for overlap with this gene set)
Compendia expression profiles ? NG-CHM interactive heatmaps
(Please note that clustering takes a few seconds)
GTEx compendium
Human tissue compendium (Novartis)
Global Cancer Map (Broad Institute)
NCI-60 cell lines (National Cancer Institute)

Legacy heatmaps (PNG)
GTEx compendium
Human tissue compendium (Novartis)
Global Cancer Map (Broad Institute)
NCI-60 cell lines (National Cancer Institute)
Advanced query Further investigate these 26 genes
Gene families ? Categorize these 26 genes by gene family
Show members (show 28 source identifiers mapped to 26 genes)
Version history 3.0: First introduced

See MSigDB license terms here. Please note that certain gene sets have special access terms.