ArticleInternational journal of clinical and experimental medicine2015
Up-regulation of cyclin E in breast cancer via estrogen receptor pathway.
Article in International journal of clinical and experimental medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 9 citations in OpenAlex.
- TELO2 mediates parabens-induced breast carcinogenesis: a comprehensive network analysis.BMC pharmacology & toxicology · 2025Article
- Comparative Study of Ferrocene- and Indene-Based Tamoxifen Derivatives of Different Molecular Flexibility on High-Mortality Cancer Cell Lines.Pharmaceuticals (Basel, Switzerland) · 2025Article
- Inorganic Phosphate Prevents Erk1/2 and Stat3 Activation and Improves Sensitivity to Doxorubicin of MDA-MB-231 Breast Cancer Cells.Molecules (Basel, Switzerland) · 2015Article
- Vorinostat (Suberoylanilide Hydroxamic Acid, SAHA) Coordinately Modulates Cell Cycle Regulatory Genes and Intrinsic and Extrinsic Apoptotic Pathway Genes to Induce Apoptosis in Human Glioblastoma, Medulloblastoma, and Acute Lymphoblastic Leukemia Cells.Iranian journal of pharmaceutical research : IJPRArticle
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
It is well known that cell cycle dysregulation plays an important role in breast cancer. The mechanism, however, is not fully understood. In this study, we aimed to explore whether estrogen and estrogen receptor pathway play a role in the regulation of cell cycle protein cyclin E expression, and whether the expression of cyclin E is associated with breast cancer prognosis. We first examined the level of cyclin E expression in breast cancer by immunohistochemistry. Benign fibroadenoma was used as controls. Next we cultured MCF-7 cells with different concentration of 17β-estradiol or tamoxifen for 48 hours. Then we employ qRT-PCR to determine changes of cyclin E in MCF-7 cells. Cyclin E is overexpressed in breast cancer and its expression is associated with the status of estrogen receptor and lymph node metastasis. After treatment with 17β-estradiol, the gene expression of cyclin E was enhanced, and as the concentration increased, the enhancement increased. After treatment with tamoxifen, the gene expression of cyclin E was inhibited, and as the concentration decreased, the inhibition increased. We demonstrated that estrogen induces, while tamoxifen inhibits cyclin E expression. This indicate that estrogen receptor pathway play a critical role in cell cycle dysregulation in breast cancer.
Indexed as
Identifiers
25785074PMC4358529W1531297005What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.