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http://purl.uniprot.org/citations/15318176http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/15318176http://www.w3.org/2000/01/rdf-schema#comment"Insulin receptor substrate 1 (IRS-1) is a major signaling molecule activated by the insulin and insulin-like growth factor I receptors. Recent data obtained in different cell models suggested that in addition to its conventional role as a cytoplasmic signal transducer, IRS-1 has a function in the nuclear compartment. However, the role of nuclear IRS-1 in breast cancer has never been addressed. Here we report that in estrogen receptor alpha (ERalpha)-positive MCF-7 cells, (1) a fraction of IRS-1 was translocated to the nucleus upon 17-beta-estradiol (E2) treatment; (2) E2-dependent nuclear translocation of IRS-1 was blocked with the antiestrogen ICI 182,780; (3) nuclear IRS-1 colocalized and co-precipitated with ERalpha; (4) the IRS-1:ERalpha complex was recruited to the E2-sensitive pS2 gene promoter. Notably, IRS-1 interaction with the pS2 promoter did not occur in ERalpha-negative MDA-MB-231 cells, but was observed in MDA-MB-231 cells retransfected with ERalpha. Transcription reporter assays with E2-sensitive promoters suggested that the presence of IRS-1 inhibits ERalpha activity at estrogen-responsive element-containing DNA. In summary, our data suggested that nuclear IRS-1 interacts with ERalpha and that this interaction might influence ERalpha transcriptional activity."xsd:string
http://purl.uniprot.org/citations/15318176http://purl.org/dc/terms/identifier"doi:10.1038/sj.onc.1208014"xsd:string
http://purl.uniprot.org/citations/15318176http://purl.uniprot.org/core/author"Tu X."xsd:string
http://purl.uniprot.org/citations/15318176http://purl.uniprot.org/core/author"Vecchione A."xsd:string
http://purl.uniprot.org/citations/15318176http://purl.uniprot.org/core/author"Morelli C."xsd:string
http://purl.uniprot.org/citations/15318176http://purl.uniprot.org/core/author"Sisci D."xsd:string
http://purl.uniprot.org/citations/15318176http://purl.uniprot.org/core/author"Cascio S."xsd:string
http://purl.uniprot.org/citations/15318176http://purl.uniprot.org/core/author"Miller W.H. Jr."xsd:string
http://purl.uniprot.org/citations/15318176http://purl.uniprot.org/core/author"Garofalo C."xsd:string
http://purl.uniprot.org/citations/15318176http://purl.uniprot.org/core/author"Surmacz E."xsd:string
http://purl.uniprot.org/citations/15318176http://purl.uniprot.org/core/author"Sauter E.R."xsd:string
http://purl.uniprot.org/citations/15318176http://purl.uniprot.org/core/author"del Rincon S."xsd:string
http://purl.uniprot.org/citations/15318176http://purl.uniprot.org/core/date"2004"xsd:gYear
http://purl.uniprot.org/citations/15318176http://purl.uniprot.org/core/name"Oncogene"xsd:string
http://purl.uniprot.org/citations/15318176http://purl.uniprot.org/core/pages"7517-7526"xsd:string
http://purl.uniprot.org/citations/15318176http://purl.uniprot.org/core/title"Nuclear insulin receptor substrate 1 interacts with estrogen receptor alpha at ERE promoters."xsd:string
http://purl.uniprot.org/citations/15318176http://purl.uniprot.org/core/volume"23"xsd:string
http://purl.uniprot.org/citations/15318176http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/15318176
http://purl.uniprot.org/citations/15318176http://xmlns.com/foaf/0.1/primaryTopicOfhttps://pubmed.ncbi.nlm.nih.gov/15318176
http://purl.uniprot.org/uniprot/#_A0A125SXW0-mappedCitation-15318176http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/15318176
http://purl.uniprot.org/uniprot/#_A0A125SXW1-mappedCitation-15318176http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/15318176
http://purl.uniprot.org/uniprot/#_Q14268-mappedCitation-15318176http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/15318176
http://purl.uniprot.org/uniprot/#_A0A125SXV8-mappedCitation-15318176http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/15318176
http://purl.uniprot.org/uniprot/#_A0A125SXV9-mappedCitation-15318176http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/15318176