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2015 ; 5
(ä): 11766
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A novel embryonic plasticity gene signature that predicts metastatic competence
and clinical outcome
#MMPMID26123483
Soundararajan R
; Paranjape AN
; Barsan V
; Chang JT
; Mani SA
Sci Rep
2015[Jun]; 5
(ä): 11766
PMID26123483
show ga
Currently, very few prognosticators accurately predict metastasis in cancer
patients. In order to complete the metastatic cascade and successfully colonize
distant sites, carcinoma cells undergo dynamic epithelial-mesenchymal-transition
(EMT) and its reversal, mesenchymal-epithelial-transition (MET). While
EMT-centric signatures correlate with response to therapy, they are unable to
predict metastatic outcome. One reason is due to the wide range of transient
phenotypes required for a tumor cell to disseminate and recreate a similar
histology at distant sites. Since such dynamic cellular processes are also seen
during embryo development (epithelial-like epiblast cells undergo transient EMT
to generate the mesoderm, which eventually redifferentiates into epithelial
tissues by MET), we sought to utilize this unique and highly conserved property
of cellular plasticity to predict metastasis. Here we present the identification
of a novel prognostic gene expression signature derived from mouse embryonic day
6.5 that is representative of extensive cellular plasticity, and predicts
metastatic competence in human breast tumor cells. This signature may thus
complement conventional clinical parameters to offer accurate prediction for
outcome among multiple classes of breast cancer patients.