| http://purl.uniprot.org/citations/21242965 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/21242965 | http://www.w3.org/2000/01/rdf-schema#comment | "The c-Met receptor tyrosine kinase (MetR) is frequently overexpressed and constitutively phosphorylated in a number of human malignancies. Activation of the receptor by its ligand, hepatocyte growth factor (HGF), leads to increased cell proliferation, motility, survival and disruption of adherens junctions. In this study, we show that hTid-1, a DNAJ/Hsp40 chaperone, represents a novel modulator of the MetR signaling pathway. hTid-1 is a co-chaperone of the Hsp70 family of proteins, and has been shown to regulate a number of cellular signaling proteins including several involved in tumorigenic and apoptotic pathways. In this study we demonstrate that hTid-1 binds to unphosphorylated MetR and becomes dissociated from the receptor upon HGF stimulation. Overexpression of the short form of hTid-1 (hTid-1(S)) in 786-0 renal clear cell carcinomas (RCCs) enhances MetR kinase activity leading to an increase in HGF-mediated cell migration with no discernible effect on cell proliferation. By contrast, knockdown of hTid-1 markedly impairs both the onset and amplitude of MetR phosphorylation in response to HGF without altering receptor protein levels. hTid-1-depleted cells display defective migratory properties, coincident with inhibition of ERK/MAP kinase and STAT3 pathways. Taken together, our findings denote hTid-1(S) as an essential regulatory component of MetR signaling. We propose that the binding of hTid-1(S) to MetR may stabilize the receptor in a ligand-competent state and this stabilizing function may influence conformational changes that take place during the catalytic cycle that promote kinase activation. Given the prevalence of HGF/MetR pathway activation in human cancers, targeted inhibition of hTid-1 may be a useful therapeutic in the management of MetR-dependent malignancies."xsd:string |
| http://purl.uniprot.org/citations/21242965 | http://purl.org/dc/terms/identifier | "doi:10.1038/onc.2010.601"xsd:string |
| http://purl.uniprot.org/citations/21242965 | http://purl.uniprot.org/core/author | "Lee C.M."xsd:string |
| http://purl.uniprot.org/citations/21242965 | http://purl.uniprot.org/core/author | "Rozakis-Adcock M."xsd:string |
| http://purl.uniprot.org/citations/21242965 | http://purl.uniprot.org/core/author | "Balgobin S."xsd:string |
| http://purl.uniprot.org/citations/21242965 | http://purl.uniprot.org/core/author | "Copeland E."xsd:string |
| http://purl.uniprot.org/citations/21242965 | http://purl.uniprot.org/core/date | "2011"xsd:gYear |
| http://purl.uniprot.org/citations/21242965 | http://purl.uniprot.org/core/name | "Oncogene"xsd:string |
| http://purl.uniprot.org/citations/21242965 | http://purl.uniprot.org/core/pages | "2252-2263"xsd:string |
| http://purl.uniprot.org/citations/21242965 | http://purl.uniprot.org/core/title | "hTID-1 defines a novel regulator of c-Met Receptor signaling in renal cell carcinomas."xsd:string |
| http://purl.uniprot.org/citations/21242965 | http://purl.uniprot.org/core/volume | "30"xsd:string |
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