Keratin 19 expression correlates with poor prognosis in breast cancer

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Abstract

Breast cancer expression profiling has been used for determining biomarkers. Using gene expression profiles of 2,400 patients we identified keratin 19 (KRT19) as a highly deregulated gene in breast cancer. KRT19 expression is independent of patient race but correlates with disease grade, and ER, PR or HER2 expression. Expression of TPD52, GATA3 and KRT18 was increased in KRT19 expressing patients. Furthermore, KRT19 expression was associated with ER up-regulation and Luminal B gene signatures, as well as a constitutive RAF1 signaling pathway. Finally, KRT19 expression correlated with poor overall survival. Taken together, our results suggest that KRT19 expression can be used as a prognostic marker.

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Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Cancer and Oncology

Keywords

  • Cytokeratin 19, CK19, KRT19, Microarray
Original languageEnglish
Pages (from-to)7729-7735
JournalMolecular Biology Reports
Volume41
Issue number12
Publication statusPublished - 2014
Publication categoryResearch
Peer-reviewedYes

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