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- W2183418296 abstract "BACKGROUND : Wildtype p53 and Smad4 are important suppressor genes in tumor genesis and development.The mutation in p53 gene is closely related to the early formation of breast cancer. In this research, we try to ex - plore the status of Smad4 in breast cancer cell line MCF7 after knocking down p53. MATERIALS AND METHODS: MCF-7 was bought from American Type Culture Collection (ATCC). Cells were cultured in Dulbecco's Modi - fied Eagle Medium (DMEM) with 10% fetal bovine serum (FBS) in incubator containing 5% CO 2 at 37°C. In this study we apply to analytical meth - ods such as growth ratio analysis in vitro , im - munoblot analysis, flow cytometry for cell cycle analysis, RNA extraction and Real-Time PCR and data analysis. RESULTS: The results indicated that specific down regulating of p53 can significantly in - crease the expression of Smad4 in cancer cell line MCF7 and promote cell apoptosis. In MCF7 cell line p53 gene is negatively related to Smad4 in great extent. CONCLUSIONS: In our study, we detect the ex - pression and function of Smad4 by suppressing p53 expression in MCF7, trying to figure out the relationship and signaling pathway between them. In this study, we try to found the affection of p53 on Smad4, so as to induce apoptosis in tumor cell, achieving the goal of targeted cancer prevention and treatment." @default.
- W2183418296 created "2016-06-24" @default.
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- W2183418296 date "2012-01-01" @default.
- W2183418296 modified "2023-09-22" @default.
- W2183418296 title "Down-regulatedP53bysiRNAincreasesSmad4's activityinpromotingcellapoptosisinMCF-7cells" @default.
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