Neurochemical Research

, Volume 36, Issue 2, pp 187–194

Resveratrol Inhibits Proliferation and Promotes Apoptosis of Neuroblastoma Cells: Role of Sirtuin 1

Authors

  • Javier G. Pizarro
    • Unitat de Farmacologia i Farmacognòsia, Institut de Biomedicina (IBUB), Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED). Facultat de FarmàciaUniversitat de Barcelona. Nucli Universitari de Pedralbes
  • Ester Verdaguer
    • Departament de Biologia Cellular, Facultat de Biologia, Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED)Universitat de Barcelona
  • Virginie Ancrenaz
    • Unitat de Farmacologia i Farmacognòsia, Institut de Biomedicina (IBUB), Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED). Facultat de FarmàciaUniversitat de Barcelona. Nucli Universitari de Pedralbes
  • Felix Junyent
    • Unitat de Farmacologia i Farmacognòsia, Institut de Biomedicina (IBUB), Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED). Facultat de FarmàciaUniversitat de Barcelona. Nucli Universitari de Pedralbes
  • Francesc Sureda
    • Unitat de Farmacología, Centros de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Facultat de Medicina i Ciències de la SalutUniversitat Rovira i Virgili
  • Mercè Pallàs
    • Unitat de Farmacologia i Farmacognòsia, Institut de Biomedicina (IBUB), Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED). Facultat de FarmàciaUniversitat de Barcelona. Nucli Universitari de Pedralbes
  • Jaume Folch
    • Unitat de Bioquimica, Facultat de Medicina i Ciències de la Salut. Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas CibernedUniversitat Rovira i Virgili
    • Unitat de Farmacologia i Farmacognòsia, Institut de Biomedicina (IBUB), Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED). Facultat de FarmàciaUniversitat de Barcelona. Nucli Universitari de Pedralbes
ORIGINAL PAPER

DOI: 10.1007/s11064-010-0296-y

Cite this article as:
Pizarro, J.G., Verdaguer, E., Ancrenaz, V. et al. Neurochem Res (2011) 36: 187. doi:10.1007/s11064-010-0296-y

Abstract

Resveratrol prolongs lifespan and prevent cancer formation; however, the mechanisms are not understood. Here we evaluated the cell-cycle inhibition and apoptosis of resveratrol in B65 neuroblastoma cells, and we also studied the effects of resveratrol on the mammalian silent information regulator 2 (SIRT1). Results show that resveratrol reduces cell viability and causes apoptosis at 24 h of treatment. Resveratrol partially blocked cell proliferation, and significantly increased the fraction of cells arrested in the S phase. The role of SIRT1 in cell-cycle effects mediated by resveratrol was studied through changes in the expression of SIRT1 using western blot. Exposure to resveratrol decreased SIRT1 content, concomitant with an increase in the acetylated form of sirtuin substrates p53 and NFκ-β. Treatment of B65 neuroblastoma cells with resveratrol also reduced the content of the phosphorylated form of AKT. Exposure to the SIRT1 inhibitors nicotinamide and sirtinol altered neither cell viability nor the fraction of apoptotic cells. Furthermore, when cells were exposed simultaneously to resveratrol and nicotinamide or sirtinol, no changes were observed in the fraction of apoptotic cells. Our results show that a decrease in SIRT1 content, caused by exposure to resveratrol, does not appear to be involved in cell-cycle arrest or activation of apoptosis.

Keywords

Neuroblastoma B65 Resveratrol Sirtinol Silent information regulator (SIRT1) Sirtuin 1 Caspase 3 Apoptosis

Copyright information

© Springer Science+Business Media, LLC 2010