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High Estrogen Receptor β Expression Is Prognostic among Adjuvant Chemotherapy-Treated Patients-Results from a Population-Based Breast Cancer Cohort

Elebro, Karin (författare)
Lund University,Lunds universitet,Tumörmikromiljö,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Bröstcancer-genetik,Institutionen för kliniska vetenskaper, Lund,Bröstcancer - prevention & intervention,Forskargrupper vid Lunds universitet,Tumor microenvironment,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Breastcancer-genetics,Department of Clinical Sciences, Lund,Breast cancer prevention & intervention,Lund University Research Groups,Skåne University Hospital
Borgquist, Signe (författare)
Lund University,Lunds universitet,Tumörmikromiljö,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Bröstcancer-genetik,Institutionen för kliniska vetenskaper, Lund,Bröstcancer - prevention & intervention,Forskargrupper vid Lunds universitet,Tumor microenvironment,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Breastcancer-genetics,Department of Clinical Sciences, Lund,Breast cancer prevention & intervention,Lund University Research Groups,Skåne University Hospital
Rosendahl, Ann H (författare)
Lund University,Lunds universitet,Tumörmikromiljö,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Bröstcancer - prevention & intervention,Forskargrupper vid Lunds universitet,Tumor microenvironment,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Breast cancer prevention & intervention,Lund University Research Groups
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Markkula, Andrea (författare)
Lund University,Lunds universitet,Tumörmikromiljö,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Tumor microenvironment,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine
Simonsson, Maria (författare)
Lund University,Lunds universitet,Tumörmikromiljö,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Bröstcancer-genetik,Institutionen för kliniska vetenskaper, Lund,Epidemiologi och farmakogenetik,Forskargrupper vid Lunds universitet,Tumor microenvironment,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Breastcancer-genetics,Department of Clinical Sciences, Lund,Epidemiology and pharmacogenetics,Lund University Research Groups
Jirström, Karin (författare)
Lund University,Lunds universitet,Tumörmikromiljö,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Personlig patologi och cancerbehandling,Forskargrupper vid Lunds universitet,Tumor microenvironment,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Personalized Pathology & Cancer Therapy,Lund University Research Groups
Rose, Carsten (författare)
Lund University,Lunds universitet,Create Health,Annan verksamhet, LTH,Lunds Tekniska Högskola,Institutionen för immunteknologi,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Department of Immunotechnology,Departments at LTH,Faculty of Engineering, LTH
Ingvar, Christian (författare)
Lund University,Lunds universitet,Kirurgi, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Lunds Melanomstudiegrupp,Forskargrupper vid Lunds universitet,Surgery (Lund),Section V,Department of Clinical Sciences, Lund,Faculty of Medicine,Lund Melanoma Study Group,Lund University Research Groups,Skåne University Hospital
Jernström, Helena (författare)
Lund University,Lunds universitet,Tumörmikromiljö,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Epidemiologi och farmakogenetik,Forskargrupper vid Lunds universitet,Tumor microenvironment,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Epidemiology and pharmacogenetics,Lund University Research Groups
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 (creator_code:org_t)
2017
2017
Engelska.
Ingår i: Clinical Cancer Research. - 1078-0432. ; 23:3, s. 766-777
Relaterad länk:
http://dx.doi.org/10...
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https://lup.lub.lu.s...
https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • PURPOSE: Isoform-specific tumor estrogen receptor β (ERβ) expression may hold prognostic information in breast cancer, especially among endocrine-treated breast cancer patients. The study's purpose was to evaluate ERβ isoform 1 (ERβ1) expression in relation to tumor characteristics, ESR2 genotypes, and prognosis in different treatment groups.EXPERIMENTAL DESIGN: A population-based prospective cohort of 1,026 patients diagnosed with primary invasive breast cancer in Lund, Sweden, between October 2002 and June 2012 was followed until June 2014 (median 5 years). Associations between immunohistochemical ERβ1 expression, patient and tumor characteristics, as well as outcome within treatment groups were analyzed.RESULTS: Tumor ERβ1 expression was available for 911 patients (89%) and was not associated with ESR2 genotypes. ERβ1 positivity, defined as >75% (ERβ175(+), 72.7%), was positively associated with established favorable tumor characteristics. Overall, ERβ175(+) was associated with lower risk of breast cancer events [HRadj = 0.60; 95% confidence interval (CI), 0.41-0.89]. The magnitude of the association was larger in patients with ERα(-) tumors (HRadj = 0.30; 95% CI, 0.12-0.76), compared with ERα(+) tumors (HRadj = 0.66; 95% CI, 0.42-1.03). Among the 232 chemotherapy-treated patients, ERβ175(+) tumors were associated with lower risk of breast cancer events compared with ERβ175(-) tumors (HRadj = 0.31; 95% CI, 0.15-0.64). Among the 671 chemonaïve patients, ERβ175 status was not associated with the outcome.CONCLUSION: High ERβ1 expression was a favorable prognostic marker in this breast cancer cohort, especially in chemotherapy-treated patients, but not in endocrine therapy-treated patients. These results warrant confirmation, preferably via a biomarker study in a previously conducted randomized trial. Clin Cancer Res; 1-12. ©2016 AACR.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Cancer and Oncology (hsv//eng)

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