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International Journal of Oncology
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International Journal of Oncology is an international journal devoted to oncology research and cancer treatment.

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Article

Regulation of the Nijmegen breakage syndrome 1 gene NBS1 by c-myc, p53 and coactivators mediates estrogen protection from DNA damage in breast cancer cells

  • Authors:
    • Rowena Wan
    • Jianchun Wu
    • Kaitrin K. Baloue
    • David L. Crowe
  • View Affiliations / Copyright

    Affiliations: University of Illinois Cancer Center, Chicago, IL 60612, USA
  • Pages: 712-720
    |
    Published online on: December 28, 2012
       https://doi.org/10.3892/ijo.2012.1757
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Abstract

In mammalian cells more than 90% of double-strand breaks are repaired by NHEJ. Impairment of this pathway is associated with cell cycle arrest, cell death, genomic instability and cancer. Human diseases such as Nijmegen breakage syndrome, due to mutations in the NBS1 gene, produce defects in resection of double-strand breaks. NBS1 hypomorphic mutant mice are viable, and cells from these mice are defective in S phase and G2/M checkpoints. NBS1 polymorphisms have been associated with increased risk of breast cancer. We previously demonstrated that estradiol protected estrogen receptor (ER)-positive (+) breast cancer cell lines against double-strand breaks and cell death. We now demonstrate that protection from double-strand break damage in ER+ cells is mediated via regulation by c-myc, p53, CBP and SRC1 coactivators in intron 1 of the NBS1 gene. We concluded that NBS1 is responsible for estradiol-mediated protection from double-strand breaks in ER+ breast cancer cells.
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Copy and paste a formatted citation
Spandidos Publications style
Wan R, Wu J, Baloue KK and Crowe DL: Regulation of the Nijmegen breakage syndrome 1 gene NBS1 by c-myc, p53 and coactivators mediates estrogen protection from DNA damage in breast cancer cells. Int J Oncol 42: 712-720, 2013.
APA
Wan, R., Wu, J., Baloue, K.K., & Crowe, D.L. (2013). Regulation of the Nijmegen breakage syndrome 1 gene NBS1 by c-myc, p53 and coactivators mediates estrogen protection from DNA damage in breast cancer cells. International Journal of Oncology, 42, 712-720. https://doi.org/10.3892/ijo.2012.1757
MLA
Wan, R., Wu, J., Baloue, K. K., Crowe, D. L."Regulation of the Nijmegen breakage syndrome 1 gene NBS1 by c-myc, p53 and coactivators mediates estrogen protection from DNA damage in breast cancer cells". International Journal of Oncology 42.2 (2013): 712-720.
Chicago
Wan, R., Wu, J., Baloue, K. K., Crowe, D. L."Regulation of the Nijmegen breakage syndrome 1 gene NBS1 by c-myc, p53 and coactivators mediates estrogen protection from DNA damage in breast cancer cells". International Journal of Oncology 42, no. 2 (2013): 712-720. https://doi.org/10.3892/ijo.2012.1757
Copy and paste a formatted citation
x
Spandidos Publications style
Wan R, Wu J, Baloue KK and Crowe DL: Regulation of the Nijmegen breakage syndrome 1 gene NBS1 by c-myc, p53 and coactivators mediates estrogen protection from DNA damage in breast cancer cells. Int J Oncol 42: 712-720, 2013.
APA
Wan, R., Wu, J., Baloue, K.K., & Crowe, D.L. (2013). Regulation of the Nijmegen breakage syndrome 1 gene NBS1 by c-myc, p53 and coactivators mediates estrogen protection from DNA damage in breast cancer cells. International Journal of Oncology, 42, 712-720. https://doi.org/10.3892/ijo.2012.1757
MLA
Wan, R., Wu, J., Baloue, K. K., Crowe, D. L."Regulation of the Nijmegen breakage syndrome 1 gene NBS1 by c-myc, p53 and coactivators mediates estrogen protection from DNA damage in breast cancer cells". International Journal of Oncology 42.2 (2013): 712-720.
Chicago
Wan, R., Wu, J., Baloue, K. K., Crowe, D. L."Regulation of the Nijmegen breakage syndrome 1 gene NBS1 by c-myc, p53 and coactivators mediates estrogen protection from DNA damage in breast cancer cells". International Journal of Oncology 42, no. 2 (2013): 712-720. https://doi.org/10.3892/ijo.2012.1757
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