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| Content Provider | PubMed Central |
|---|---|
| Author | Williams, Marlon D. Nguyen, Thu Carriere, Patrick P. Tilghman, Syreeta L. Williams, Christopher |
| Editor | Edberg, Mark |
| Copyright Year | 2015 |
| Abstract | The heterotetrameric protein kinase CK2 has been associated with oncogenic transformation, and our previous studies have shown that it may affect estrogenic signaling. Here, we investigate the role of the protein kinase CK2 in regulating ERα (estrogen receptor α) signaling in breast cancer. We determined the correlation of CK2α expression with relapse free breast cancer patient survival utilizing Kaplan Meier Plotter (kmplot.com/analysis/) to mine breast cancer microarrays repositories. Patients were stratified according to ERα status, histological grade, and hormonal therapy. Luciferase reporter assays and flow cytometry were implemented to determine the impact of CK2 inhibition on ERE-mediated gene expression and expression of ERα protein. CK2α expression is associated with shorter relapse free survival among ERα (+) patients with grade 1 or 2 tumors, as well as among those patients receiving hormonal therapy. Biochemical inhibition of CK2 activity results in increased ER-transactivation as well as increased expression among ERα (+) and ERα (−) breast cancer cell lines. These findings suggest that CK2 may contribute to estrogen-independent cell proliferation and breast tumor progression, and may potentially serve as a biomarker and pharmacological target in breast cancer. |
| Related Links | http://dx.doi.org/10.3390/ijerph13010036 |
| Starting Page | 36 |
| File Format | |
| ISSN | 16604601 |
| e-ISSN | 16604601 |
| Journal | International Journal of Environmental Research and Public Health |
| Issue Number | 1 |
| Volume Number | 13 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2015-12-01 |
| Access Restriction | Open |
| Rights Holder | MDPI |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Health, Toxicology and Mutagenesis Pollution Public Health, Environmental and Occupational Health |
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