Breast Cancer Research and Treatment

, Volume 145, Issue 1, pp 5–22

Nicotine promotes apoptosis resistance of breast cancer cells and enrichment of side population cells with cancer stem cell-like properties via a signaling cascade involving galectin-3, α9 nicotinic acetylcholine receptor and STAT3

  • Prasun Guha
  • Gargi Bandyopadhyaya
  • Swamy K. Polumuri
  • Saranya Chumsri
  • Padmaja Gade
  • Dhananjaya V. Kalvakolanu
  • Hafiz Ahmed
Preclinical Study

DOI: 10.1007/s10549-014-2912-z

Cite this article as:
Guha, P., Bandyopadhyaya, G., Polumuri, S.K. et al. Breast Cancer Res Treat (2014) 145: 5. doi:10.1007/s10549-014-2912-z

Abstract

Nicotine, a main addictive compound in tobacco smoke, has been linked to promotion and progression of lung, head and neck, pancreatic, and breast cancers, but the detailed mechanisms of cancer progression remain elusive. Here, we show that nicotine induces the expression of galectin-3 (an anti-apoptotic β-galactoside-binding lectin) in breast cancer cell line and in primary tumors from breast cancer patients. Nicotine-induced up regulation of galectin-3 is due to an increased expression of α9 isoform of nicotinic acetylcholine receptor (α9nAChR), which activates transcription factor STAT3 that in turn, physically binds to galectin-3 (LGALS3) promoter and induces transcription of galectin-3. Intracellular galectin-3 increased mitochondrial integrity and suppressed chemotherapeutic-induced apoptosis of breast cancer cell. Moreover, nicotine-induced enrichment of side population cells with cancer stem cell-like properties was modulated by galectin-3 expression and could be significantly reduced by transient knock down of LGALS3 and its upstream signaling molecules STAT3 and α9nAChR. Thus, galectin-3 or its upstream signaling molecule STAT3 or α9nAChR could be a potential target to prevent nicotine-induced chemoresistance in breast cancer.

Keywords

Nicotine Apoptosis Metastatic cancer Stem cell Galectin-3 

Abbreviations

α9nAChR

α9 isoform of nicotinic acetylcholine receptor

LGALS3

Galectin-3

gal3

galectin-3

STS

Staurosporine

SP

Side population

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Prasun Guha
    • 1
    • 2
  • Gargi Bandyopadhyaya
    • 1
    • 2
  • Swamy K. Polumuri
    • 3
  • Saranya Chumsri
    • 4
    • 5
  • Padmaja Gade
    • 3
  • Dhananjaya V. Kalvakolanu
    • 3
    • 5
  • Hafiz Ahmed
    • 1
    • 2
    • 5
  1. 1.Department of Biochemistry and Molecular BiologyUniversity of Maryland School of MedicineBaltimoreUSA
  2. 2.Institute of Marine and Environmental TechnologyBaltimoreUSA
  3. 3.Department of Microbiology and ImmunologyUniversity of Maryland School of MedicineBaltimoreUSA
  4. 4.Department of MedicineUniversity of Maryland School of MedicineBaltimoreUSA
  5. 5.University of Maryland Greenebaum Cancer CenterBaltimoreUSA