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Purpose: Previous studies of breast tissue gene expression have demonstrated that the extratumoral microenvironment has substantial variability across individuals, some of which can be attributed to epidemiologic factors. To evaluate how mammographic density (MD) and breast tissue composition relat...
ORGANISM(S): Homo sapiens 
Breast cancer outcome is highly variable. Whether inadvertent exposure to environmental xenobiotics evokes a biological response promoting cancer aggressiveness and a higher probability of tumor recurrence remains unknown. To determine specific molecular alterations, which arise in high-risk breast ...
ORGANISM(S): Homo sapiens 
The contralateral unaffected breast of women with unilateral breast cancer (cases) is a good model for defining subtype-specific risk since women with ER-negative index primaries are at high risk for subsequent ER-negative primary cancers. We performed random fine needle aspiration (rFNA) of the una...
ORGANISM(S): Homo sapiens 
DNA methylation patterns in breast cancer, paired benign tissue from ipsilateral and contralateral breast, and healthy controls
The project contains raw and result files from a comparative proteomic analysis of malignant [primary breast tumor (PT) and axillary metastatic lymph nodes (LN)] and non-tumor [contralateral (NCT) and adjacent breast (ANT)] tissues of patients diagnosed with invasive ductal carcinoma. A label-free m...
ORGANISM(S): Homo sapiens (Human) 
2019-07-15 | PXD012431 | Pride
Epigenetic field cancerization in breast cancer using subject-matched tumor, ipsilateral-normal, and contralateral-normal tissues
Gene expression profiling of breast tumors for prognosis of local reccurence. Dual channel arrays with a tumor sample in one channel and a common reference in the other channel.
ORGANISM(S): Homo sapiens 
Emerging work has demonstrated that histologically normal (non-tumor) tissue adjacent to breast tumor tissue shows evidence of molecular alterations related to tumorigenesis, referred to as field cancerization effects. Although changes in DNA methylation are known to occur early in breast carcinogen...
ORGANISM(S): Homo sapiens 
2020-07-10 | GSE133985 | GEO
Gene expression profiling of normal tissues after curative radiotherapy was carried out to investigate the pathogenesis of late radiation injury in humans. Irradiated and control normal breast tissue was collected from patients undergoing bilateral mastectomy for ipsilateral tumour relapse or proph...
ORGANISM(S): Homo sapiens 
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