Open Access

Inhibition of β2-adrenergic receptor reduces triple-negative breast cancer brain metastases: The potential benefit of perioperative β-blockade

  • Authors:
    • Cecilia Choy
    • John L. Raytis
    • David D. Smith
    • Matthew Duenas
    • Josh Neman
    • Rahul Jandial
    • Michael W. Lew
  • View Affiliations

  • Published online on: March 28, 2016     https://doi.org/10.3892/or.2016.4710
  • Pages: 3135-3142
  • Copyright: © Choy et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

In response to recent studies, we investigated an association between perioperative β-blockade and breast cancer metastases. First, a retrospective study examining perioperative β-blocker use and cancer recurrence and metastases was conducted on 1,029 patients who underwent breast cancer surgery at the City of Hope Cancer Center between 2000 and 2010. We followed the clinical study and examined proliferation, migration, and invasion in vitro of primary and brain-metastatic breast cancer cells in response to β2-activation and inhibition. We also investigated in vivo the metastatic potential of propranolol-treated metastatic cells. For stage II breast cancer patients, perioperative β-blockade was associated with decreased cancer recurrence using Cox regression analysis (hazard's ratio =0.51; 95% CI: 0.23-0.97; p=0.041). Triple-negative (TN) brain-metastatic cells were found to have increased β2-adrenergic receptor mRNA and protein expression relative to TN primary cells. In response to β2-adrenergic receptor activation, TN brain-metastatic cells also exhibited increased cell proliferation and migration relative to the control. These effects were abrogated by propranolol. Propranolol decreased β2-adrenergic receptor-activated invasion. In vivo, propranolol treatment of TN brain-metastatic cells decreased establishment of brain metastases. Our results suggest that stress and corresponding β2-activation may promote the establishment of brain metastases of TN breast cancer cells. In addition, our data suggest a benefit to perioperative β-blockade during surgery-induced stress with respect to breast cancer recurrence and metastases.
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June-2016
Volume 35 Issue 6

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

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Spandidos Publications style
Choy C, Raytis JL, Smith DD, Duenas M, Neman J, Jandial R and Lew MW: Inhibition of β2-adrenergic receptor reduces triple-negative breast cancer brain metastases: The potential benefit of perioperative β-blockade. Oncol Rep 35: 3135-3142, 2016
APA
Choy, C., Raytis, J.L., Smith, D.D., Duenas, M., Neman, J., Jandial, R., & Lew, M.W. (2016). Inhibition of β2-adrenergic receptor reduces triple-negative breast cancer brain metastases: The potential benefit of perioperative β-blockade. Oncology Reports, 35, 3135-3142. https://doi.org/10.3892/or.2016.4710
MLA
Choy, C., Raytis, J. L., Smith, D. D., Duenas, M., Neman, J., Jandial, R., Lew, M. W."Inhibition of β2-adrenergic receptor reduces triple-negative breast cancer brain metastases: The potential benefit of perioperative β-blockade". Oncology Reports 35.6 (2016): 3135-3142.
Chicago
Choy, C., Raytis, J. L., Smith, D. D., Duenas, M., Neman, J., Jandial, R., Lew, M. W."Inhibition of β2-adrenergic receptor reduces triple-negative breast cancer brain metastases: The potential benefit of perioperative β-blockade". Oncology Reports 35, no. 6 (2016): 3135-3142. https://doi.org/10.3892/or.2016.4710