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

  • Published online on: July 25, 2014     https://doi.org/10.3892/or.2014.3363
  • Pages: 1335-1340
  • Copyright: © Dastagir et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].

Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


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.
View Figures
View References

Related Articles

Journal Cover

October 2014
Volume 32 Issue 4

Print ISSN: 1021-335X
Online ISSN:1791-2431

Sign up for eToc alerts

Recommend to Library

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