| http://purl.uniprot.org/citations/21775420 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/21775420 | http://www.w3.org/2000/01/rdf-schema#comment | "Loss of xanthine oxidoreductase (XOR) has been linked to aggressive breast cancer in vivo and to breast cancer cell aggressiveness in vitro. In the present study, we hypothesized that the contribution of XOR to the development of the normal mammary gland may underlie its capacity to modulate breast cancer. We contrasted in vitro and in vivo developmental systems by differentiation marker and microarray analyses. Human breast cancer microarray was used for clinical outcome studies. The role of XOR in differentiation and proliferation was examined in human breast cancer cells and in a mouse xenograft model. Our data show that XOR was required for functional differentiation of mammary epithelial cells both in vitro and in vivo. Poor XOR expression was observed in a mouse ErbB2 breast cancer model, and pharmacologic inhibition of XOR increased breast cancer tumor burden in mouse xenograft. mRNA microarray analysis of human breast cancer revealed that low XOR expression was significantly associated with time to tumor relapse. The opposing expression of XOR and inhibitor of differentiation-1 (Id1) during HC11 differentiation and mammary gland development suggested a potential functional relationship. While overexpression of Id1 inhibited HC11 differentiation and XOR expression, XOR itself modulated expression of Id1 in differentiating HC11 cells. Overexpression of XOR both inhibited Id1-induced proliferation and -stimulated differentiation of Heregulin-β1-treated human breast cancer cells. These results show that XOR is an important functional component of differentiation whose diminished expression contributes to breast cancer aggressiveness, and they support XOR as both a breast cancer biomarker and a target for pharmacologic activation in therapeutic management of aggressive breast cancer."xsd:string |
| http://purl.uniprot.org/citations/21775420 | http://purl.org/dc/terms/identifier | "doi:10.1158/1541-7786.mcr-11-0176"xsd:string |
| http://purl.uniprot.org/citations/21775420 | http://purl.uniprot.org/core/author | "Wright R.M."xsd:string |
| http://purl.uniprot.org/citations/21775420 | http://purl.uniprot.org/core/author | "Farabaugh S.M."xsd:string |
| http://purl.uniprot.org/citations/21775420 | http://purl.uniprot.org/core/author | "Monks J."xsd:string |
| http://purl.uniprot.org/citations/21775420 | http://purl.uniprot.org/core/author | "Fini M.A."xsd:string |
| http://purl.uniprot.org/citations/21775420 | http://purl.uniprot.org/core/date | "2011"xsd:gYear |
| http://purl.uniprot.org/citations/21775420 | http://purl.uniprot.org/core/name | "Mol Cancer Res"xsd:string |
| http://purl.uniprot.org/citations/21775420 | http://purl.uniprot.org/core/pages | "1242-1254"xsd:string |
| http://purl.uniprot.org/citations/21775420 | http://purl.uniprot.org/core/title | "Contribution of xanthine oxidoreductase to mammary epithelial and breast cancer cell differentiation in part modulates inhibitor of differentiation-1."xsd:string |
| http://purl.uniprot.org/citations/21775420 | http://purl.uniprot.org/core/volume | "9"xsd:string |
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