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GENE:

ER (Estrogen receptor)

i
Other names: ESR1, Era, ESR, NR3A1, ER, ER beta
1d
The effect of adjuvant radiotherapy on M0 adenoid cystic carcinoma of the breast: a retrospective cohort study based on SEER data. (PubMed, Gland Surg)
Adjuvant RT did not improve the OS and BCSS of the M0 ADCC patients with tumors ≤10 mm who had undergone BCT. Therefore, adjuvant RT may not be necessary for M0 ADCC patients with tumors ≤10 mm who have undergone BCT.
Retrospective data • Journal
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HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor)
1d
Sex differences of β-carotene effects in azoxymethane/dextran sulfate sodium-induced early colorectal cancer mice. (PubMed, Nutr Res Pract)
In early CRC, higher disease activity and specific changes, such as increased DAI scores and reduced serum estradiol in females than in males. BC supplementation could effectively reduce DAI scores and systemic inflammation in both sexes. Notably, serum cytokine levels decreased only in females.
Preclinical • Journal
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ER (Estrogen receptor)
1d
Solitary adrenal metastasis presenting 15 years after breast cancer: a case report. (PubMed, Ann Med Surg (Lond))
This case highlights that isolated adrenal metastasis can occur even after prolonged remission, with hypercalcemia as the sole presenting feature. It emphasizes the need for long-term surveillance in breast cancer survivors and the potential role of surgery in managing isolated adrenal metastases.
Journal
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ER (Estrogen receptor) • PGR (Progesterone receptor)
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PGR positive
1d
Genomic Analysis of Low-Grade Serous Ovarian Cancer: Clinical and Biological Insights. (PubMed, Cureus)
The cooperative GOG 281/LOGS trial showed that trametinib, an MEK inhibitor (MEKi), was significantly more effective than standard-of-care options (including chemotherapy or hormonal therapy) in increasing progression-free survival (median PFS 13.0 months vs. 7.2 months; hazard ratio 0.48, p < 0.001)...Genomic and multi-omic profiling have revealed actionable vulnerabilities and precision oncology approaches. The advent of biomarker-directed trials, molecular subtyping incorporation, and innovative computational strategies is likely to gradually ameliorate therapy selection and, thereby, finally improve long-term outcomes for patients with this complex disease.
Review • Journal • Tumor mutational burden • IO biomarker
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HER-2 (Human epidermal growth factor receptor 2) • KRAS (KRAS proto-oncogene GTPase) • BRAF (B-raf proto-oncogene) • ER (Estrogen receptor) • TP53 (Tumor protein P53) • TMB (Tumor Mutational Burden) • NRAS (Neuroblastoma RAS viral oncogene homolog) • CDKN2A (Cyclin Dependent Kinase Inhibitor 2A) • MAP2K1 (Mitogen-activated protein kinase kinase 1) • NF1 (Neurofibromin 1) • CDKN2B (Cyclin Dependent Kinase Inhibitor 2B) • CDH1 (Cadherin 1) • MIR7 (MicroRNA 7) • RASSF1 (Ras Association Domain Family Member 1)
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TP53 mutation • KRAS mutation • BRAF mutation • NRAS mutation • HER-2 mutation • CDKN2A deletion
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Mekinist (trametinib)
1d
Deriving Real-World Evidence from Non-English Electronic Medical Records in Hormone Receptor-Positive Breast Cancer Using Large Language Models. (PubMed, Cancers (Basel))
The discovered LPP phenotype defines a small, high-risk subset warranting external validation. Given the retrospective, single-system design of the study, it is imperative to interpret the discovered phenotype features as hypothesis-generating, rather than as definitive evidence.
Journal • HEOR • Real-world evidence
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HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor) • PGR (Progesterone receptor)
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HR positive • HER-2 negative
1d
Radiomics Analysis of QUS Spectral Parametric Images for Predicting the Risk of Breast Cancer Recurrence. (PubMed, Cancers (Basel))
The results warrant further investigation on a larger cohort. This framework can be a useful surrogate for participants for whom ODX testing is neither affordable nor available.
Journal
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HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor)
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HER-2 negative
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Oncotype DX Breast Recurrence Score®Test
1d
High-Risk Node-Positive Hormone Receptor-Positive/HER2-Low Breast Cancer Relapse on Adjuvant Abemaciclib Treatment with ER Loss at Metastatic Recurrence: A Case Report and Literature Review. (PubMed, Diagnostics (Basel))
Conversely, T-DXd administered due to the presence of HER2-low showed excellent effectiveness. Performing a re-biopsy is crucial due to the possible loss of estrogen receptors, which would require a change in therapeutic strategy no longer based on endocrine therapy. In cases that remain luminal, knowledge of the mutational profile may help to offer patients novel targeted treatments.
Journal
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HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor) • RB1 (RB Transcriptional Corepressor 1)
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HER-2 positive • HR positive • HER-2 negative • RB1 mutation • ESR1 mutation
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Enhertu (fam-trastuzumab deruxtecan-nxki) • Verzenio (abemaciclib)
1d
Role of ERβ in Triple-Negative Breast Cancer Associated with p53 and Androgen Receptor. (PubMed, Int J Mol Sci)
This may be the result of a functional interaction between ERβ and p53 or AR. The role of ERβ in TNBC will be elucidated in further complex studies considering multiple molecules.
Journal
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ER (Estrogen receptor) • TP53 (Tumor protein P53) • AR (Androgen receptor)
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TP53 mutation • ER positive • AR positive
1d
Quantification of Signal Transduction Pathway Activity in Pancreatic Ductal Adenocarcinoma. (PubMed, Int J Mol Sci)
We conclude that PDAC is characterized by increased MAPK STP activity in combination with high Ki67 and increased activity of developmental pathways (Wnt, Hedgehog, Notch, TGFβ). Drugs targeting specific STPs will be evaluated in PDAC model systems to develop new therapies for PDAC.
Journal
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ER (Estrogen receptor) • AR (Androgen receptor) • STAT3 (Signal Transducer And Activator Of Transcription 3) • TGFB1 (Transforming Growth Factor Beta 1) • STAT1 (Signal Transducer And Activator Of Transcription 1)
1d
Screening and predictive analysis of common regulatory genes in diabetes and rectal cancer: transcriptional and drug modulation mechanisms. (PubMed, Eur J Med Res)
Genes such as SYP show significant differential expression in both T2DM and RC and may play significant roles in the progression of T2DM and RC. Transcription factor analysis suggested that SP1 could regulate multiple hub genes. Molecular docking indicated that SP1 is a potential target for active components like stearic acid and EGCG in Ginkgo biloba, highlighting its potential as a therapeutic agent for T2DM and RC.
Journal
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ER (Estrogen receptor) • CDH3 (Cadherin 3) • SYP (Synaptophysin) • CHGA (Chromogranin A)
1d
Retrospective review of metastatic hormone receptor-positive inflammatory breast cancer patients reveals poor responses to cyclin dependent kinase 4/6 inhibition. (PubMed, Breast Cancer Res)
Patients with metastatic HR+HER2- IBC demonstrated a shorter time on treatment suggesting shorter duration of response on CDKI + HT, which is markedly inferior to reported data for non-IBC patients from phase III trials.
Retrospective data • Journal
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HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor) • TP53 (Tumor protein P53) • PIK3CA (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha) • FGFR1 (Fibroblast growth factor receptor 1) • ARID1A (AT-rich interaction domain 1A) • CCND1 (Cyclin D1)
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HER-2 positive • TP53 mutation • HR positive • HER-2 negative • PIK3CA mutation • ARID1A mutation • ESR1 mutation • HR positive + HER-2 negative • HER-2 negative + HR positive + ESR1 mutation
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Ibrance (palbociclib) • Verzenio (abemaciclib) • Kisqali (ribociclib)
1d
Fasting boosts breast cancer therapy efficacy via glucocorticoid activation. (PubMed, Nature)
GR-driven gene programmes are selectively activated in in vivo models of ERα-positive breast cancer during fasting, and GR knockout hinders the anti-tumour effects of fasting combined with tamoxifen...Additionally, tumours collected after the fasting-mimicking diet showed an inverse correlation of GR activation with proliferation markers, providing clinical confirmation of our observations in animal models. Our results indicate that GR activation has a pivotal role in the ability of fasting to enhance endocrine therapy activity in breast cancer and suggest that corticosteroid administration should be evaluated as an adjuvant to endocrine therapy in this setting.
Journal
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ER (Estrogen receptor) • PGR (Progesterone receptor)
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ER positive
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tamoxifen