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Information Journal Paper

Title

TP53 BINDING TO BRCA1 AND RAD51 IN MCF7 AND MDA-MB-468 BREAST CANCER CELL LINES IN VIVO AND IN VITRO

Pages

  76-79

Abstract

 Background: Tumour suppressor genes such as TP53, BRCA1 and RAD51 are involved in DNA repair and their malfunctions result in genomic instability and cancer. Wild type (WT) TP53 binds to BRCA1and RAD51 in vivo and in vitro. However, mutated TP53 in tumours can interfere with WT TP53 function. We studied how mutation of TP53 in MDA-MB-468 cell line could affect its binding capacity and interfere with WT TP53 interaction with these DNA repair proteins.Methods: Binding capacity of mutated TP53 in MDA-MB-468 breast cancer cell line to BRCA1 and RAD51 PROTEINs in comparison to WT TP53 in MCF7 cell line was studied by IMMUNOPRECIPITATION. In vitro studies were performed by GST-WT p53 pull-down assays in these cell lines to assess the interaction of GST-WT p53 with BRCA1 and RAD51 PROTEINs.Results: The results showed that mutated TP53 in MDA-MB-468 cells interacted with BRCA1 PROTEIN in vivo and did not effect WT TP53 binding to this protein in vitro. The IMMUNOPRECIPITATION assays revealed that the mutated TP53 did not bind to RAD51 in comparison to WT TP53. However, this mutated protein could not interfere with binding of RAD51 to GST-WT p53 in MDA-MB-468 cell line by in vitro experiment.Conclusion: It was found that WT TP53 interactions with BRCA1 and RAD51 did not interfere with mutated TP53 in MDA-MB-468 cell line. In addition, RAD51 did not bind to TP53 with R273C mutation in vivo.

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    Cite

    APA: Copy

    RASTI, MOZHGAN, & AZIMI, TAYEBEH. (2015). TP53 BINDING TO BRCA1 AND RAD51 IN MCF7 AND MDA-MB-468 BREAST CANCER CELL LINES IN VIVO AND IN VITRO. AVICENNA JOURNAL OF MEDICAL BIOTECHNOLOGY (AJMB), 7(2), 76-79. SID. https://sid.ir/paper/313870/en

    Vancouver: Copy

    RASTI MOZHGAN, AZIMI TAYEBEH. TP53 BINDING TO BRCA1 AND RAD51 IN MCF7 AND MDA-MB-468 BREAST CANCER CELL LINES IN VIVO AND IN VITRO. AVICENNA JOURNAL OF MEDICAL BIOTECHNOLOGY (AJMB)[Internet]. 2015;7(2):76-79. Available from: https://sid.ir/paper/313870/en

    IEEE: Copy

    MOZHGAN RASTI, and TAYEBEH AZIMI, “TP53 BINDING TO BRCA1 AND RAD51 IN MCF7 AND MDA-MB-468 BREAST CANCER CELL LINES IN VIVO AND IN VITRO,” AVICENNA JOURNAL OF MEDICAL BIOTECHNOLOGY (AJMB), vol. 7, no. 2, pp. 76–79, 2015, [Online]. Available: https://sid.ir/paper/313870/en

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