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TranscriptomicsChromosome 11q and its association with CCND1 gene amplification and tamoxifen resistance in premenopausal breast cancer
Background: The amplification event occurring at chromosome locus 11q13, reported in several different cancers, includes a number of potential oncogenes. We have previously reported amplification of one such oncogene, CCND1, to be correlated with an adverse effect of tamoxifen in premenopausal breas...
ORGANISM(S): Homo sapiens 
2008-10-07 | E-GEOD-12759 | biostudies-arrayexpress
TranscriptomicsCharacterization of amplification patterns and target genes at chromosome 11q13 in CCND1-amplified sporadic and familial breast tumors
Amplification of chromosomal region 11q13, containing the cell cycle regulatory gene CCND1, is frequently found in breast cancer and other malignancies. It is associated with the favourable oestrogen receptor (ER) positive breast tumour phenotype, but also with poor prognosis and treatment failure. ...
ORGANISM(S): Homo sapiens 
2011-11-23 | E-GEOD-32578 | biostudies-arrayexpress
TranscriptomicsMolecular subtypes of breast cancer are associated with characteristic DNA methylation patterns
Introduction: Five different molecular subtypes of breast cancer have been identified through gene expression profiling. Each subtype has a characteristic expression pattern suggested to partly depend on cellular origin. We aimed to investigate whether the molecular subtypes also display distinct me...
ORGANISM(S): Homo sapiens 
2010-06-09 | E-GEOD-22210 | biostudies-arrayexpress
TranscriptomicsGenome-wide DNA methylation analysis of breast cancer
Aberrant DNA methylation is frequently observed in breast cancer. However, the relationship between methylation patterns and the heterogeneity of breast cancer has not been comprehensively characterized. Whole-genome DNA methylation analysis using 450K Illumina BeadArrays was performed on 188 hum...
ORGANISM(S): Homo sapiens 
2016-02-29 | E-GEOD-75067 | biostudies-arrayexpress
TranscriptomicsGenome-wide DNA methylation analysis of different cell types
We performed whole-genome methylation analysis using 450K Illumina BeadArrays on different human cell types. In total 24 experiments were performed. Dermal fibroblasts, three different epidermal melanocytes (dark, medium and light pigmentation), epidermal keratinocytes, mammary fibroblasts, mammary ...
ORGANISM(S): Homo sapiens 
2016-02-29 | E-GEOD-74877 | biostudies-arrayexpress
TranscriptomicsIdentification of subtypes in HER2-positive breast cancer reveals a gene signature prognostic of outcome
Purpose HER2 gene amplification or protein overexpression (HER2+) defines a clinically challenging subgroup of breast cancer with variable prognosis and response to therapy. We aimed to investigate the heterogeneous biological appearance and clinical behavior of HER2+ tumors using molecular profilin...
ORGANISM(S): Homo sapiens 
2010-03-16 | E-GEOD-18328 | biostudies-arrayexpress
TranscriptomicsThe retinoblastoma gene is targeted for rearrangements in BRCA1-deficient basal-like breast cancer.
Breast tumors from BRCA1 germ line mutation carriers typically exhibit features of the basal-like molecular subtype. However, the specific genes recurrently mutated as a consequence of BRCA1 dysfunction have not been fully elucidated. In this study, we utilized gene expression profiling to molecular...
ORGANISM(S): Homo sapiens 
2012-06-26 | E-GEOD-25307 | biostudies-arrayexpress
TranscriptomicsGenomic Subtypes of Breast Cancer Identified by Array Comparative Genomic Hybridization
Breast cancer is a profoundly heterogeneous disease with respect to biological and clinical behavior. Gene expression profiling has been used to dissect this complexity and stratify tumors into intrinsic gene expression subtypes associated with distinct biology, patient outcome and different genomic...
ORGANISM(S): Homo sapiens 
2010-06-23 | E-GEOD-22133 | biostudies-arrayexpress
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