Ator of nuclear receptors, we explored its prognostic value in relation to estrogen-receptor-a (ESR1) and -b (ESR2) and evaluated its predictive value for response to tamoxifen treatment. Methods: DC-SCRIPT mRNA levels were measured by real-time PCR in 1,505 primary invasive breast cancers and associated with outcome (disease-free survival (DFS), metastasis-free survival (MFS) and overall survival
Either ESR1-positive and/or ESR2-low pT1 tumors.Introduction Estrogens influence the aggressiveness of breast cancer through their cognate nuclear receptors. In particular, the estrogen receptor-alpha (ERa) (ESR1) - present in tumor cells of about 70 to 75 of all breast tumors is considered crucial because of its proliferationinducing actions and for that reason is an important target for therap
Either ESR1-positive and/or ESR2-low pT1 tumors.Introduction Estrogens influence the aggressiveness of breast cancer through their cognate nuclear receptors. In particular, the estrogen receptor-alpha (ERa) (ESR1) - present in tumor cells of about 70 to 75 of all breast tumors is considered crucial because of its proliferationinducing actions and for that reason is an important target for therap
Ator of nuclear receptors, we explored its prognostic value in relation to estrogen-receptor-a (ESR1) and -b (ESR2) and evaluated its predictive value for response to tamoxifen treatment. Methods: DC-SCRIPT mRNA levels were measured by real-time PCR in 1,505 primary invasive breast cancers and associated with outcome (disease-free survival (DFS), metastasis-free survival (MFS) and overall survival
Receptors also modulate response to therapy [8,9], we also assessed, as a secondary aim of this study, the predictive value of DC-SCRIPT by using clinical benefit and progression-free survival (PFS) after first-line tamoxifen for advanced disease as the main endpoints.Materials and methodsPatientsdetermined by real-time reverse transcriptase-polymerase chain reaction (RT-PCR) [14,16,17]. Follow-up
The Reporting Recommendations for Tumor Marker Prognostic Studies guidelines [11]. The primary breast tumors were from patients with detailed clinical follow-up as previously described [12-14]. ER protein status was determined by routine ligand-binding assays or enzyme immunoassays [15], and ESR1, ESR2, and PGR mRNA status wasTissue processing, RNA isolation, cDNA synthesis, and quantitative RT-PC
Lpropane-1,3-diamine. Acknowledgements We especially thank the patients and surgeons, pathologists, and internists for their assistance in collecting tumor tissues and patients' clinical follow-up data. We thank Joan Bolt, Marion Meijer, Mieke Timmermans, Anita Trapman, and Wendy van der Smissen for their excellent technical support. This work was financially supported by VICI grant 918-66-615 (aw
Of DC-SCRIPT are associated with reduced tumor aggressiveness. The association is particularly strong for small tumors with high ESR1 or low ESR2 mRNA levels or both. Finally, although DC-SCRIPT negatively regulates ESR1 and PGR activity, DC-SCRIPT levels measured in theSieuwerts et al. Breast Cancer Research 2010, 12:R103 http://breast-cancer-research.com/content/12/6/RPage 9 ofprimary tumors are