PP2A Regulates signaling through hormonal receptors in breast cancer with important therapeutic implications

Publication date: Available online 12 September 2017
Source:Biochimica et Biophysica Acta (BBA) - Reviews on Cancer
Author(s): Ion Cristóbal, Blanca Torrejón, Javier Martínez-Useros, Juan Madoz-Gurpide, Federico Rojo, Jesús García-Foncillas
The functional inhibition of protein phosphatase 2A (PP2A) has emerged in the last years as a common alteration in breast cancer that determines poor outcome and contributes to disease progression and aggressiveness. Furthermore, expression of estrogen receptor (ER) is a high relevant molecular event with key therapeutic implications in breast cancer, and androgen receptor (AR) signaling is involved in the pathogenesis of breast cancer and represents a novel target with crescent importance in this disease. In this review, we summarize the role of the tumor suppressor PP2A in modulating ER and AR signaling in breast cancer, the molecular mechanisms involved, and its biological and therapeutic impact.



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