Breast Cancer Research and Treatment

, Volume 122, Issue 3, pp 777–785

Targeting breast stem cells with the cancer preventive compounds curcumin and piperine

Authors

    • Division of Hematology/Oncology, Department of Internal Medicine and Comprehensive Cancer CenterUniversity of Michigan
    • VA Medical Center
  • Dean E. Brenner
    • Division of Hematology/Oncology, Department of Internal Medicine and Comprehensive Cancer CenterUniversity of Michigan
    • Department of PharmacologyUniversity of Michigan
    • VA Medical Center
  • Hasan Korkaya
    • Division of Hematology/Oncology, Department of Internal Medicine and Comprehensive Cancer CenterUniversity of Michigan
  • Connie Cheng
    • Division of Hematology/Oncology, Department of Internal Medicine and Comprehensive Cancer CenterUniversity of Michigan
  • Karim Tazi
    • Division of Hematology/Oncology, Department of Internal Medicine and Comprehensive Cancer CenterUniversity of Michigan
  • Christophe Ginestier
    • Division of Hematology/Oncology, Department of Internal Medicine and Comprehensive Cancer CenterUniversity of Michigan
  • Suling Liu
    • Division of Hematology/Oncology, Department of Internal Medicine and Comprehensive Cancer CenterUniversity of Michigan
  • Gabriela Dontu
    • Division of Hematology/Oncology, Department of Internal Medicine and Comprehensive Cancer CenterUniversity of Michigan
  • Max S. Wicha
    • Division of Hematology/Oncology, Department of Internal Medicine and Comprehensive Cancer CenterUniversity of Michigan
Preclinical Study

DOI: 10.1007/s10549-009-0612-x

Cite this article as:
Kakarala, M., Brenner, D.E., Korkaya, H. et al. Breast Cancer Res Treat (2010) 122: 777. doi:10.1007/s10549-009-0612-x

Abstract

The cancer stem cell hypothesis asserts that malignancies arise in tissue stem and/or progenitor cells through the dysregulation or acquisition of self-renewal. In order to determine whether the dietary polyphenols, curcumin, and piperine are able to modulate the self-renewal of normal and malignant breast stem cells, we examined the effects of these compounds on mammosphere formation, expression of the breast stem cell marker aldehyde dehydrogenase (ALDH), and Wnt signaling. Mammosphere formation assays were performed after curcumin, piperine, and control treatment in unsorted normal breast epithelial cells and normal stem and early progenitor cells, selected by ALDH positivity. Wnt signaling was examined using a Topflash assay. Both curcumin and piperine inhibited mammosphere formation, serial passaging, and percent of ALDH+ cells by 50% at 5 μM and completely at 10 μM concentration in normal and malignant breast cells. There was no effect on cellular differentiation. Wnt signaling was inhibited by both curcumin and piperine by 50% at 5 μM and completely at 10 μM. Curcumin and piperine separately, and in combination, inhibit breast stem cell self-renewal but do not cause toxicity to differentiated cells. These compounds could be potential cancer preventive agents. Mammosphere formation assays may be a quantifiable biomarker to assess cancer preventive agent efficacy and Wnt signaling assessment can be a mechanistic biomarker for use in human clinical trials.

Keywords

Breast stem cellsCancer preventionCurcuminPiperine

Supplementary material

10549_2009_612_MOESM1_ESM.doc (132 kb)
Supplementary material 1 (DOC 133 kb)

Copyright information

© Springer Science+Business Media, LLC. 2009