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Article Open Access

Role of Lifeguard β-isoform in the development of breast cancer

  • Authors:
    • Nadjib Dastagir
    • Andrea Lazaridis
    • Khaled Dastagir
    • Kerstin Reimers
    • Peter M. Vogt
    • Vesna Bucan
  • View Affiliations / Copyright

    Affiliations: Department of Plastic, Hand and Reconstructive Surgery, Hannover Medical School, D-30659 Hannover, Germany
    Copyright: © Dastagir et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].
  • Pages: 1335-1340
    |
    Published online on: July 25, 2014
       https://doi.org/10.3892/or.2014.3363
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Abstract

In the last century there has been great progress in the treatment of breast cancer by improving drug and radiation therapy as well as surgical techniques. Despite this development, breast cancer remains a major cause of death among women in Europe and the US. The cause of breast cancer at the cellular level is still not fully understood. In the present study, we investigated the expression of the Lifeguard β-isoform in breast cancer tissues. In contrast to Lifeguard, the β‑isoform has one transmembrane domain less, which is the last of seven (99 bp), and due to this we suspect that the Lifeguard β-isoform exhibits a different function. We determined the expression and function of the β-isoform of Lifeguard in breast cancer cell lines (MCF-7 and MDA-MB-231), a human breast epithelial cell line (MCF10A) and in breast tumour tissue sections. Western blotting, PCR arrays and immunofluorescence were used to investigate the expression of Lifeguard and its β-isoform. Moreover, we investigated the ability of Lifeguard β-isoform expression to inhibit apoptosis induced by Fas. Our results indicated that Lifeguard β-isoform is strongly expressed in breast tumour tissues. More notably, we demonstrated that Fas sensitivity was reduced in the MCF10A breast cells expressing the Lifeguard β-isoform. Taken together, our findings indicate the role of the Lifeguard β-isoform as an anti‑apoptotic protein and provide further evidence of the potential of the Lifeguard β-isoform as a target for the development of novel therapeutic strategies.
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Copy and paste a formatted citation
Spandidos Publications style
Dastagir N, Lazaridis A, Dastagir K, Reimers K, Vogt PM and Bucan V: Role of Lifeguard β-isoform in the development of breast cancer. Oncol Rep 32: 1335-1340, 2014.
APA
Dastagir, N., Lazaridis, A., Dastagir, K., Reimers, K., Vogt, P.M., & Bucan, V. (2014). Role of Lifeguard β-isoform in the development of breast cancer. Oncology Reports, 32, 1335-1340. https://doi.org/10.3892/or.2014.3363
MLA
Dastagir, N., Lazaridis, A., Dastagir, K., Reimers, K., Vogt, P. M., Bucan, V."Role of Lifeguard β-isoform in the development of breast cancer". Oncology Reports 32.4 (2014): 1335-1340.
Chicago
Dastagir, N., Lazaridis, A., Dastagir, K., Reimers, K., Vogt, P. M., Bucan, V."Role of Lifeguard β-isoform in the development of breast cancer". Oncology Reports 32, no. 4 (2014): 1335-1340. https://doi.org/10.3892/or.2014.3363
Copy and paste a formatted citation
x
Spandidos Publications style
Dastagir N, Lazaridis A, Dastagir K, Reimers K, Vogt PM and Bucan V: Role of Lifeguard β-isoform in the development of breast cancer. Oncol Rep 32: 1335-1340, 2014.
APA
Dastagir, N., Lazaridis, A., Dastagir, K., Reimers, K., Vogt, P.M., & Bucan, V. (2014). Role of Lifeguard β-isoform in the development of breast cancer. Oncology Reports, 32, 1335-1340. https://doi.org/10.3892/or.2014.3363
MLA
Dastagir, N., Lazaridis, A., Dastagir, K., Reimers, K., Vogt, P. M., Bucan, V."Role of Lifeguard β-isoform in the development of breast cancer". Oncology Reports 32.4 (2014): 1335-1340.
Chicago
Dastagir, N., Lazaridis, A., Dastagir, K., Reimers, K., Vogt, P. M., Bucan, V."Role of Lifeguard β-isoform in the development of breast cancer". Oncology Reports 32, no. 4 (2014): 1335-1340. https://doi.org/10.3892/or.2014.3363
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