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MetabolomicsSerum metabolomic profiles identify ER-positive early breast cancer patients at increased risk of disease recurrence in a multicentre population

PURPOSE: Detecting signals of micrometastatic disease in early breast cancer (EBC) patients could improve risk stratification and allow better tailoring of adjuvant therapies. We have previously shown that postoperative serum metabolomic profiles are predictive of relapse in a si...

2017-03-02 | MTBLS424 | MetaboLights
TranscriptomicsCharacterization of macrophage - cancer cell crosstalk in estrogen receptor positive and triple-negative breast cancer
We performed whole transcriptome sequencing of human monocytes that were co-cultured with estrogen receptor positive (ER+) or triple-negative (TNBC) breast cancer cell lines and studied the biological responses related to the differential gene activation in both cell types to understand how differen...
ORGANISM(S): Homo sapiens 
2015-11-19 | E-GEOD-75130 | biostudies-arrayexpress
TranscriptomicsPI3K inhibition results in enhanced estrogen receptor function and dependence in hormone receptor-positive breast cancer
Activating mutations of PIK3CA are the most frequent genomic alterations in estrogen receptor (ER)-positive breast tumors and selective PI3Kα inhibitors are in clinical development. The activity of these agents, however, is not homogenous and only a fraction of patients bearing PIK3CA-mutant ER-posi...
ORGANISM(S): Homo sapiens 
2015-04-29 | E-GEOD-64033 | biostudies-arrayexpress
TranscriptomicsLong non-coding RNA HOTAIR is an independent prognostic marker of metastasis in estrogen receptor positive primary breast cancer
Expression of HOX transcript antisense intergenic RNA (HOTAIR)—a long intergenic non-coding RNA (lincRNA)—has been examined in a variety of human cancers, and overexpression of HOTAIR is correlated with poor survival among breast, colon, and liver cancer patients. In this retrospective study, we exa...
ORGANISM(S): Homo sapiens 
2013-11-29 | E-GEOD-48408 | biostudies-arrayexpress
TranscriptomicsTranscription profiling of human breast cancers to define clinically distinct molecular subtypes in estrogen receptor positive breast carcinomas using genomic grade
Purpose: A number of microarray studies have reported distinct molecular profiles of breast cancers (BC): basal-like, ErbB2-like and two to three luminal-like subtypes. These were associated with different clinical outcomes. However, although the basal and the ErbB2 subtypes are repeatedly recognize...
ORGANISM(S): Homo sapiens 
2008-06-20 | E-GEOD-6532 | biostudies-arrayexpress
MetabolomicsER stress inhibits liver fatty acid oxidation while unmitigated stress leads to anorexia-induced lipolysis and both liver and kidney steatosis
The unfolded protein response (UPR), induced by endoplasmic reticulum (ER) stress, regulates the expression of factors that restore protein folding homeostasis. However, in the liver and kidney, ER stress also leads to lipid accumulation, accompanied at least in the liver by transcriptional suppress...
2017-06-23 | MTBLS472 | MetaboLights
GenomicsPredicting immune responsiveness in ER-positive breast cancer
Predicting immune responsiveness in ER-positive breast cancer
PRJNA1271078 | ENA
TranscriptomicsGSTP1 expression predicts poor pathological complete response to neoadjuvant chemotherapy in ER-negative breast cancer
The purpose of the present study was to investigate the association of glutathione S-transferase P1 (GSTP1) expression with resistance to neoadjuvant paclitaxel followed by 5-fluorouracil/epirubicin/cyclophosphamide (P-FEC) in human breast cancers. The relationship of GSTP1 expression and GSTP1 prom...
ORGANISM(S): Homo sapiens 
2012-03-20 | E-GEOD-32646 | biostudies-arrayexpress
GenomicsChIP-Seq of human MCF-7 cells with ER-alpha and ER-beta anitbodies following estrogen treatment
We performed chromatin immunoprecipitation (ChIP) with overnight with antibodies against the C-terminus (HC-20, from Santa Cruz Biotechnology, Europe) or the N-terminus (anti-Estrogen Receptor 18-32, from SigmaAldrich, Italy) of human ER-alpha with or without estrogen treatment for 45 minutes on TAP...
ORGANISM(S): Homo sapiens 
2010-12-01 | E-MTAB-345 | biostudies-arrayexpress
TranscriptomicsGene expression profiling of invasive breast cancer events from the tamoxifen prevention trial
Gene expression profiling of invasive breast cancer events from the tamoxifen prevention trial validates low estrogen receptor mRNA level as the main determinant of tamoxifen resistance in estrogen receptor positive breast cancer. In NSABP Breast Cancer Prevention Trial (BCPT), tamoxifen reduced th...
ORGANISM(S): Homo sapiens 
2011-12-08 | E-GEOD-12665 | biostudies-arrayexpress
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