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2015 ; 2015
(ä): 792182
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Epithelial to Mesenchymal Transition in a Clinical Perspective
#MMPMID26425122
Pasquier J
; Abu-Kaoud N
; Al Thani H
; Rafii A
J Oncol
2015[]; 2015
(ä): 792182
PMID26425122
show ga
Tumor growth and metastatic dissemination rely on cellular plasticity. Among the
different phenotypes acquired by cancer cells, epithelial to mesenchymal
transition (EMT) has been extensively illustrated. Indeed, this transition allows
an epithelial polarized cell to acquire a more mesenchymal phenotype with
increased mobility and invasiveness. The role of EMT is quite clear during
developmental stage. In the neoplastic context in many tumors EMT has been
associated with a more aggressive tumor phenotype including local invasion and
distant metastasis. EMT allows the cell to invade surrounding tissues and survive
in the general circulation and through a stem cell phenotype grown in the host
organ. The molecular pathways underlying EMT have also been clearly defined and
their description is beyond the scope of this review. Here we will summarize and
analyze the attempts made to block EMT in the therapeutic context. Indeed, till
today, most of the studies are made in animal models. Few clinical trials are
ongoing with no obvious benefits of EMT inhibitors yet. We point out the
limitations of EMT targeting such tumor heterogeneity or the dynamics of EMT
during disease progression.