B-cell translocation 1 gene inhibits cellular metastasis-associated behavior in breast cancer
| Autor: | Ran Zhu, Yan Xu, Shi‑Tao Zou, Hao‑Rong Wu, Wei Li, Jian‑Mei Wan |
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| Rok vydání: | 2014 |
| Předmět: |
Cancer Research
Angiogenesis Cellular differentiation Gene Expression Mice Nude Breast Neoplasms Biology Biochemistry Metastasis Mice chemistry.chemical_compound Breast cancer Cell Movement Cell Line Tumor Cell Adhesion Genetics medicine Animals Humans Neoplasm Metastasis Molecular Biology Neovascularization Pathologic Oncogene Cancer Cell cycle medicine.disease Neoplasm Proteins Vascular endothelial growth factor Disease Models Animal Oncology chemistry Cancer research Molecular Medicine Female |
| Zdroj: | Molecular Medicine Reports. 9:2374-2380 |
| ISSN: | 1791-3004 1791-2997 |
| DOI: | 10.3892/mmr.2014.2118 |
| Popis: | B-cell translocation gene 1 (BTG1) is a member of the BTG/transducer of ERBB2 family, which regulates cell cycle progression in a variety of cell types and may have a role in inhibiting proliferation, promoting apoptosis and stimulating cellular differentiation in numerous cell types. However, the role of BTG1 in cancer metastasis is yet to be elucidated. In the present study, analysis of clinical specimens revealed that BTG1 mRNA levels were lower in lymph node metastases than those in benign breast tumors and normal human breast tissue. The effect of BTG1 on the metastatic behavior of breast cancer cells following stable transfection with a BTG1 expression vector was also investigated. The overexpression of BTG1 was observed to inhibit cell adhesion, migration and invasion. Furthermore, the overexpression of BTG1 was found to be involved in the inhibition of the metastasis-related proteins matrix metalloproteinase-2 and -9, as well as the promotion of the cell-cell adhesion-associated protein E-cadherin. In syngeneic nude mice breast tumor models, hepatic metastasis and angiogenesis were observed in the mice injected with the control cells, but not in those injected with pcDNA3-BTG1 cells. Immunohistochemistry revealed that overexpression of BTG1 decreased vascular endothelial growth factor expression in tumors. To the best of our knowledge, this is the first study to show that BTG1 overexpression decreases migration and invasion of breast cancer cells and thereby inhibits distant metastasis in mice breast tumor models. |
| Databáze: | OpenAIRE |
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