作者: Vanessa M. López-Ozuna , Ibrahim Y. Hachim , Mahmood Y. Hachim , Jean-Jacques Lebrun , Suhad Ali
DOI: 10.1038/SREP30934
关键词:
摘要: Triple negative breast cancer (TNBC) is a heterogeneous disease associated with poor clinical outcome and lack of targeted therapy. Here we show that prolactin (PRL) its signaling pathway serve as sub-classifier predictor pro-differentiation therapy in TNBC. Using immunohistochemistry various gene expression silica analyses observed receptor (PRLR) protein mRNA levels are down regulated TNBC cases. In addition, examining correlation PRLR metagenes subtypes (580 cases), found sub-classifies patients into new subgroup (TNBC-PRLR) characterized by epithelial-luminal differentiation. Importantly, PRL components individually (PRL, PRLR, Jak2 Stat5a), or signature able to predict significantly better survival outcomes. As hormone druggable target determined the biological role biology. Significantly, restoration/activation cells representative mesenchymal TNBC-PRLR subgroups led induction epithelial phenotype suppression tumorigenesis. Altogether, these results offer potential modalities for stratification development personalized based on activation.