Role of TGF-β1/SMAD signaling cascade in the regulation of cyclooxygenase-2 expression in human breast cancer cells
The expression of the SMAD2, SMAD4, SMAD7, and СOX-2 genes and the levels of Smad4, phosphorylated Smad2, and Smad7 proteins were analyzed in the human breast cancer (BC) cell lines MCF-7, BT-474, and ZR-75-1. The SMAD2 and SMAD4 genes were found to suppress COX-2 gene expression in the estrogen rec...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | Russian |
| Published: |
ABV-press
2014-07-01
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| Series: | Опухоли женской репродуктивной системы |
| Subjects: | |
| Online Access: | https://ojrs.abvpress.ru/ojrs/article/view/33 |
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| Summary: | The expression of the SMAD2, SMAD4, SMAD7, and СOX-2 genes and the levels of Smad4, phosphorylated Smad2, and Smad7 proteins were analyzed in the human breast cancer (BC) cell lines MCF-7, BT-474, and ZR-75-1. The SMAD2 and SMAD4 genes were found to suppress COX-2 gene expression in the estrogen receptor-positive BC cells and to be linked to their metastatic potential. Smad4 and Smad2 apparently suppress COX-2 mRNA and protein synthesis and Smad7 is their antagonist and stimulates COX-2 formation. Smad2, Smad4, Smad7 proteins may be regarded as new potential targets for targeted BC therapy. |
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| ISSN: | 1994-4098 1999-8627 |