Tumor Biology

, Volume 36, Issue 8, pp 5753–5755 | Cite as

PP2A inhibition as a novel therapeutic target in castration-resistant prostate cancer

  • Paula González-Alonso
  • Ion Cristóbal
  • Rebeca Manso
  • Juan Madoz-Gúrpide
  • Jesús García-Foncillas
  • Federico Rojo
Research Commentary


Protein phosphatase 2A (PP2A) is a well-known tumor suppressor frequently inhibited in human cancer. Alterations affecting PP2A subunits together with the deregulation of endogenous PP2A inhibitors such as CIP2A and SET have been described as contributing mechanisms to inactivate PP2A in prostate cancer. Moreover, recent findings highlight that functional inactivation of PP2A could represent a key event in the acquisition of castration-resistant phenotype and a novel molecular target with high impact at both clinical and therapeutic levels in prostate cancer.


PP2A FTY720 Cabazitaxel Castration-resistant prostate cancer 


Financial support

This study is supported by the Biobank of “Fundación Jiménez Díaz” (FJD Biobank) (RD12/0036/0021), and PI12/01552 and PI13/02609 grants from “Instituto de Salud Carlos III FEDER” and S2010/BMD2344. R. Manso and P. González-Alonso are supported by “Fundación Conchita Rábago de Jiménez Díaz”.

Conflicts of interest



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Copyright information

© International Society of Oncology and BioMarkers (ISOBM) 2015

Authors and Affiliations

  • Paula González-Alonso
    • 1
  • Ion Cristóbal
    • 2
  • Rebeca Manso
    • 1
  • Juan Madoz-Gúrpide
    • 1
  • Jesús García-Foncillas
    • 2
  • Federico Rojo
    • 1
  1. 1.Pathology DepartmentIIS “Fundación Jiménez Diaz”MadridSpain
  2. 2.Translational Oncology Division, Oncohealth Institute, IIS-Fundacion Jimenez Diaz, UAMUniversity Hospital “Fundacion Jimenez Diaz”MadridSpain

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