Estrogen Receptor Expression Is Associated with DNA Repair Capacity in Breast Cancer

Estrogen-receptor-positive (ER+) tumors employ complex signaling that engages in crosstalk with multiple pathways through genomic and non-genomic regulation. A greater understanding of these pathways is important for developing improved biomarkers that can better determine treatment choices, risk of...

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Veröffentlicht in:PloS one 2016-03, Vol.11 (3), p.e0152422
Hauptverfasser: Matta, Jaime, Morales, Luisa, Ortiz, Carmen, Adams, Damian, Vargas, Wanda, Casbas, Patricia, Dutil, Julie, Echenique, Miguel, Suárez, Erick
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container_title PloS one
container_volume 11
creator Matta, Jaime
Morales, Luisa
Ortiz, Carmen
Adams, Damian
Vargas, Wanda
Casbas, Patricia
Dutil, Julie
Echenique, Miguel
Suárez, Erick
description Estrogen-receptor-positive (ER+) tumors employ complex signaling that engages in crosstalk with multiple pathways through genomic and non-genomic regulation. A greater understanding of these pathways is important for developing improved biomarkers that can better determine treatment choices, risk of recurrence and cancer progression. Deficiencies in DNA repair capacity (DRC) is a hallmark of breast cancer (BC); therefore, in this work we tested whether ER signaling influences DRC. We analyzed the association between ER positivity (% receptor activation) and DRC in 270 BC patients, then further stratified our analysis by HER2 receptor status. Our results show that among HER2 negative, the likelihood of having low DRC values among ER- women is 1.92 (95% CI: 1.03, 3.57) times the likelihood of having low DRC values among ER+ women, even adjusting for different potential confounders (p
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A greater understanding of these pathways is important for developing improved biomarkers that can better determine treatment choices, risk of recurrence and cancer progression. Deficiencies in DNA repair capacity (DRC) is a hallmark of breast cancer (BC); therefore, in this work we tested whether ER signaling influences DRC. We analyzed the association between ER positivity (% receptor activation) and DRC in 270 BC patients, then further stratified our analysis by HER2 receptor status. Our results show that among HER2 negative, the likelihood of having low DRC values among ER- women is 1.92 (95% CI: 1.03, 3.57) times the likelihood of having low DRC values among ER+ women, even adjusting for different potential confounders (p&lt;0.05); however, a contrary pattern was observed among HER2 positives women. In conclusion, there is an association between DRC levels and ER status, and this association is modified by HER2 receptor status. Adding a DNA repair capacity test to hormone receptor testing may provide new information on defective DNA repair phenotypes, which could better stratify BC patients who have ER+ tumors. ER+/HER2- tumors are heterogeneous, incompletely defined, and clinically challenging to treat; the addition of a DRC test could better characterize and classify these patients as well as help clinicians select optimal therapies, which could improve outcomes and reduce recurrences.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0152422</identifier><identifier>PMID: 27032101</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Adult ; Aged ; Biochemistry ; Biology ; Biology and life sciences ; Biomarkers ; Biomarkers, Tumor - metabolism ; Breast cancer ; Breast Neoplasms - metabolism ; Breast Neoplasms - pathology ; Cancer ; Care and treatment ; Cellular signal transduction ; Crosstalk ; Deoxyribonucleic acid ; DNA ; DNA damage ; DNA Repair ; Epidemiology ; ErbB-2 protein ; Estrogen receptors ; Estrogens ; Female ; Gene expression ; Health risks ; Health sciences ; Humans ; Logistic Models ; Lymphocytes ; Medicine ; Medicine and Health Sciences ; Middle Aged ; Mutation ; Neoplasm Staging ; Patients ; Pharmacology ; Phenotype ; Public health ; Receptor mechanisms ; Receptor, ErbB-2 - metabolism ; Receptors, Estrogen - genetics ; Receptors, Estrogen - metabolism ; Receptors, Progesterone - metabolism ; Repair ; Signal transduction ; Signaling ; Skin cancer ; Toxicology ; Tumors ; Womens health</subject><ispartof>PloS one, 2016-03, Vol.11 (3), p.e0152422</ispartof><rights>COPYRIGHT 2016 Public Library of Science</rights><rights>2016 Matta et al. 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subjects Adult
Aged
Biochemistry
Biology
Biology and life sciences
Biomarkers
Biomarkers, Tumor - metabolism
Breast cancer
Breast Neoplasms - metabolism
Breast Neoplasms - pathology
Cancer
Care and treatment
Cellular signal transduction
Crosstalk
Deoxyribonucleic acid
DNA
DNA damage
DNA Repair
Epidemiology
ErbB-2 protein
Estrogen receptors
Estrogens
Female
Gene expression
Health risks
Health sciences
Humans
Logistic Models
Lymphocytes
Medicine
Medicine and Health Sciences
Middle Aged
Mutation
Neoplasm Staging
Patients
Pharmacology
Phenotype
Public health
Receptor mechanisms
Receptor, ErbB-2 - metabolism
Receptors, Estrogen - genetics
Receptors, Estrogen - metabolism
Receptors, Progesterone - metabolism
Repair
Signal transduction
Signaling
Skin cancer
Toxicology
Tumors
Womens health
title Estrogen Receptor Expression Is Associated with DNA Repair Capacity in Breast Cancer
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-03T09%3A56%3A22IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Estrogen%20Receptor%20Expression%20Is%20Associated%20with%20DNA%20Repair%20Capacity%20in%20Breast%20Cancer&rft.jtitle=PloS%20one&rft.au=Matta,%20Jaime&rft.date=2016-03-31&rft.volume=11&rft.issue=3&rft.spage=e0152422&rft.pages=e0152422-&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0152422&rft_dat=%3Cgale_plos_%3EA453451686%3C/gale_plos_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1777533603&rft_id=info:pmid/27032101&rft_galeid=A453451686&rft_doaj_id=oai_doaj_org_article_9b064620571a416e8990cff83d7b73f0&rfr_iscdi=true