Journal
INTERNATIONAL JOURNAL OF BIOCHEMISTRY & CELL BIOLOGY
Volume 49, Issue -, Pages 69-74Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.biocel.2014.01.009
Keywords
c-Met; Endosome; Signalling; Cell migration; Cancer
Categories
Funding
- Medical Research Council [G0501003] Funding Source: Medline
- MRC [G0501003] Funding Source: UKRI
- Medical Research Council [G0501003] Funding Source: researchfish
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Deregulated signalling of the Receptor Tyrosine Kinase (RTK), Met, and/or its ligand HGF have been associated with cancer formation and progression to metastasis, with Met/HGF often overexpressed or mutated. Thus, Met has become a major target for cancer therapy and its inhibition is currently being tested in the clinic. It has recently become evident that, instead of signalling at the plasma membrane only, Met signals post-internalisation from endosomal compartments. Thus, Met endocytic trafficking is required for the full activation of signals such as Gab1, ERK 1/2, STAT3 and Rac1, all implicated in cell survival, invasion and metastasis. Modifications in the balance between degradation and recycling of Met may also impinge on Met signalling. Moreover, oncogenic Met mutations in the kinase domain trigger constitutive Met internalisation/recycling, leading to endosomal signalling and consequent cell transformation. Using Met as an example, this review outlines the evidence that the molecular mechanisms regulating trafficking and endosomal signalling may be exploited to design future cancer therapies. (C) 2014 Elsevier Ltd. All rights reserved.
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