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2015 ; 3
(13
): 181
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MET deregulation in breast cancer
#MMPMID26366398
Minuti G
; Landi L
Ann Transl Med
2015[Aug]; 3
(13
): 181
PMID26366398
show ga
BACKGROUND: Mesenchymal-epithelial transition (MET) is an oncogene encoding for a
trans-membrane tyrosine kinase receptor activated by the hepatocyte growth factor
(HGF). MET has a normal function in organ development during embryogenesis and in
tissue homeostasis during adult life. Deregulation of HGF/MET signaling pathway
is frequently observed in many cancer types, conferring invasive growth and
tendency to progression. MET deregulation is due to gene amplification or
increased copy number, gene mutation, receptor over-expression or ligand
autocrine loops activation. These events lead to migration, invasion,
proliferation, metastatic spread and neo-angiogenesis of cancer cells, suggesting
that anti-HGF/MET agents may represent a potential antitumor strategy. In breast
cancer (BC), preclinical and clinical data demonstrated the role of HGF/MET
signalling pathway in carcinogenesis, disease progression and resistance
features. METHODS: For this review article, all published data on HGF/MET in BC
were collected and analyzed. RESULTS: Several evidences underline that, in early
BC, MET over-expression has an independent negative prognostic significance,
regardless of method used for evaluation and BC subtypes. Available data suggest
that MET is a relevant target particularly in basal-like (BL) and in triple
negative BC. Moreover, preclinical and retrospective data support the critical
role of MET deregulation in the development of resistance to target-agents, such
as anti-HER2 strategies. CONCLUSIONS: MET is a promising new target in BC.
Several anti-MET agents are under investigation and ongoing clinical trials will
clarify its relevance in BC treatment.