Expression of activated type I receptor tyrosine kinases in early breast cancer

Overexpression of EGFR, HER2 and HER3 are known to be associated with poor outcome in breast cancer. Few studies have examined the clinical impact of activation of these proteins. In the present study, we evaluated EGFR, HER2 and HER3 and the activated (phosphorylated) forms of these proteins in pat...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Breast cancer research and treatment 2012-07, Vol.134 (2), p.701-708
Hauptverfasser: Spears, Melanie, Pederson, Hans Christian, Lyttle, Nicola, Gray, Claire, Quintayo, Mary Anne, Brogan, Lyndsay, J Thomas, Jeremy St, Kerr, Gillian R., Jack, Wilma J. L., Kunkler, Ian H., Cameron, David A., Chetty, Udi, Bartlett, John M. S.
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 708
container_issue 2
container_start_page 701
container_title Breast cancer research and treatment
container_volume 134
creator Spears, Melanie
Pederson, Hans Christian
Lyttle, Nicola
Gray, Claire
Quintayo, Mary Anne
Brogan, Lyndsay
J Thomas, Jeremy St
Kerr, Gillian R.
Jack, Wilma J. L.
Kunkler, Ian H.
Cameron, David A.
Chetty, Udi
Bartlett, John M. S.
description Overexpression of EGFR, HER2 and HER3 are known to be associated with poor outcome in breast cancer. Few studies have examined the clinical impact of activation of these proteins. In the present study, we evaluated EGFR, HER2 and HER3 and the activated (phosphorylated) forms of these proteins in patients with early breast cancer. EGFR, HER2, HER3, pEGFR, pHER2 and pHER3 expression was determined by immunohistochemical analysis of tissue microarrays constructed from tumours within the Edinburgh Breast Conservation Series (BCS). The BCS represents a fully-documented consecutive cohort of 1,812 patients treated by breast conservation surgery in a single institution. Our results demonstrate overexpression of HER2 and pHER2 to be associated with a significant reduction in overall survival (OS) (HR: 1.66, 95 % CI 1.22–2.26, p  = 0.001 and HR: 1.57, 95 % CI 1.22–2.03, p  = 0.001, respectively) and distant relapse-free survival (DRFS) (HR: 1.63, 95 % CI 1.23–2.18, p  = 0.001 and HR: 1.55, 95 % CI 1.23–1.97, p  = 0.0002, respectively). Paradoxically, expression of pEGFR was associated with a significantly improved OS (HR: 0.67 95 % CI 0.50–0.91, p  = 0.01) and DRFS (HR: 0.73, 95 % CI 0.56–0.96, p  = 0.025). Expression of activated EGFR/HER2 provides additional information on ER positive breast cancer patients and suggests alternative treatment for those in this subgroup.
doi_str_mv 10.1007/s10549-012-2076-7
format Article
fullrecord <record><control><sourceid>gale_proqu</sourceid><recordid>TN_cdi_proquest_miscellaneous_1027682567</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><galeid>A356447214</galeid><sourcerecordid>A356447214</sourcerecordid><originalsourceid>FETCH-LOGICAL-c500t-523ea1ec78c5bf8a89a5a3f18a6e387754a767874011d69d595a540cba3efd503</originalsourceid><addsrcrecordid>eNp1kV1rFDEUhoModq3-AG8kIIo3U5PM5GMuS6laKPRGr8PZzJk2dTZZk0xx_70ZdrWtKLkIOXnO1_sS8pqzE86Y_pg5k13fMC4awbRq9BOy4lK3jRZcPyUrxpVulGHqiLzI-ZYx1mvWPydHQkgluOhW5Or85zZhzj4GGkcKrvg7KDjQstsivaAJHW5LTPWdYvYB6XcfIGOmPlCENO3oOiHkQh0Eh-kleTbClPHV4T4m3z6dfz370lxefb44O71snGSsNFK0CBydNk6uRwOmBwntyA0obI3WsgOttNEd43xQ_SB7CbJjbg0tjoNk7TH5sK-7TfHHjLnYjc8OpwkCxjlbzoRWpq6pK_r2L_Q2zinU6SrV1gZGKHFPXcOE1ocxlgRuKWpPW6m6rmraVerkH1Q9A268iwFHX-OPEt4_SLhBmMpNjtNcquD5Mcj3oKs654Sj3Sa_gbSrQ9rFbbt321a37eK2XTZ7c9hsXm9w-JPx294KvDsAkB1MY6oe-XzPKcGYaRc1xZ7L9StcY3oo0f-6_wLI_r3X</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1030118262</pqid></control><display><type>article</type><title>Expression of activated type I receptor tyrosine kinases in early breast cancer</title><source>MEDLINE</source><source>SpringerLink Journals</source><creator>Spears, Melanie ; Pederson, Hans Christian ; Lyttle, Nicola ; Gray, Claire ; Quintayo, Mary Anne ; Brogan, Lyndsay ; J Thomas, Jeremy St ; Kerr, Gillian R. ; Jack, Wilma J. L. ; Kunkler, Ian H. ; Cameron, David A. ; Chetty, Udi ; Bartlett, John M. S.</creator><creatorcontrib>Spears, Melanie ; Pederson, Hans Christian ; Lyttle, Nicola ; Gray, Claire ; Quintayo, Mary Anne ; Brogan, Lyndsay ; J Thomas, Jeremy St ; Kerr, Gillian R. ; Jack, Wilma J. L. ; Kunkler, Ian H. ; Cameron, David A. ; Chetty, Udi ; Bartlett, John M. S.</creatorcontrib><description>Overexpression of EGFR, HER2 and HER3 are known to be associated with poor outcome in breast cancer. Few studies have examined the clinical impact of activation of these proteins. In the present study, we evaluated EGFR, HER2 and HER3 and the activated (phosphorylated) forms of these proteins in patients with early breast cancer. EGFR, HER2, HER3, pEGFR, pHER2 and pHER3 expression was determined by immunohistochemical analysis of tissue microarrays constructed from tumours within the Edinburgh Breast Conservation Series (BCS). The BCS represents a fully-documented consecutive cohort of 1,812 patients treated by breast conservation surgery in a single institution. Our results demonstrate overexpression of HER2 and pHER2 to be associated with a significant reduction in overall survival (OS) (HR: 1.66, 95 % CI 1.22–2.26, p  = 0.001 and HR: 1.57, 95 % CI 1.22–2.03, p  = 0.001, respectively) and distant relapse-free survival (DRFS) (HR: 1.63, 95 % CI 1.23–2.18, p  = 0.001 and HR: 1.55, 95 % CI 1.23–1.97, p  = 0.0002, respectively). Paradoxically, expression of pEGFR was associated with a significantly improved OS (HR: 0.67 95 % CI 0.50–0.91, p  = 0.01) and DRFS (HR: 0.73, 95 % CI 0.56–0.96, p  = 0.025). Expression of activated EGFR/HER2 provides additional information on ER positive breast cancer patients and suggests alternative treatment for those in this subgroup.</description><identifier>ISSN: 0167-6806</identifier><identifier>EISSN: 1573-7217</identifier><identifier>DOI: 10.1007/s10549-012-2076-7</identifier><identifier>PMID: 22562124</identifier><identifier>CODEN: BCTRD6</identifier><language>eng</language><publisher>Boston: Springer US</publisher><subject>Analysis ; Antineoplastic Agents, Hormonal - therapeutic use ; Biological and medical sciences ; Breast cancer ; Breast Neoplasms - drug therapy ; Breast Neoplasms - metabolism ; Breast Neoplasms - mortality ; Cancer research ; Cancer therapies ; Care and treatment ; Clinical Trial ; Cohort Studies ; Disease-Free Survival ; Enzyme Activation ; Epidermal growth factor ; Female ; Gynecology. Andrology. Obstetrics ; Humans ; Kaplan-Meier Estimate ; Mammary gland diseases ; Medical prognosis ; Medical sciences ; Medicine ; Medicine &amp; Public Health ; Middle Aged ; Oncology ; Phenols ; Phosphorylation ; Phosphotransferases ; Protein Processing, Post-Translational ; Proteins ; Receptor, Epidermal Growth Factor - metabolism ; Receptor, ErbB-2 - metabolism ; Receptor, ErbB-3 - metabolism ; Receptors, Estrogen - metabolism ; Tamoxifen - therapeutic use ; Tissue Array Analysis ; Tumors ; Tyrosine</subject><ispartof>Breast cancer research and treatment, 2012-07, Vol.134 (2), p.701-708</ispartof><rights>Springer Science+Business Media, LLC. 2012</rights><rights>2015 INIST-CNRS</rights><rights>COPYRIGHT 2012 Springer</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c500t-523ea1ec78c5bf8a89a5a3f18a6e387754a767874011d69d595a540cba3efd503</citedby><cites>FETCH-LOGICAL-c500t-523ea1ec78c5bf8a89a5a3f18a6e387754a767874011d69d595a540cba3efd503</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10549-012-2076-7$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10549-012-2076-7$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=26200830$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22562124$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Spears, Melanie</creatorcontrib><creatorcontrib>Pederson, Hans Christian</creatorcontrib><creatorcontrib>Lyttle, Nicola</creatorcontrib><creatorcontrib>Gray, Claire</creatorcontrib><creatorcontrib>Quintayo, Mary Anne</creatorcontrib><creatorcontrib>Brogan, Lyndsay</creatorcontrib><creatorcontrib>J Thomas, Jeremy St</creatorcontrib><creatorcontrib>Kerr, Gillian R.</creatorcontrib><creatorcontrib>Jack, Wilma J. L.</creatorcontrib><creatorcontrib>Kunkler, Ian H.</creatorcontrib><creatorcontrib>Cameron, David A.</creatorcontrib><creatorcontrib>Chetty, Udi</creatorcontrib><creatorcontrib>Bartlett, John M. S.</creatorcontrib><title>Expression of activated type I receptor tyrosine kinases in early breast cancer</title><title>Breast cancer research and treatment</title><addtitle>Breast Cancer Res Treat</addtitle><addtitle>Breast Cancer Res Treat</addtitle><description>Overexpression of EGFR, HER2 and HER3 are known to be associated with poor outcome in breast cancer. Few studies have examined the clinical impact of activation of these proteins. In the present study, we evaluated EGFR, HER2 and HER3 and the activated (phosphorylated) forms of these proteins in patients with early breast cancer. EGFR, HER2, HER3, pEGFR, pHER2 and pHER3 expression was determined by immunohistochemical analysis of tissue microarrays constructed from tumours within the Edinburgh Breast Conservation Series (BCS). The BCS represents a fully-documented consecutive cohort of 1,812 patients treated by breast conservation surgery in a single institution. Our results demonstrate overexpression of HER2 and pHER2 to be associated with a significant reduction in overall survival (OS) (HR: 1.66, 95 % CI 1.22–2.26, p  = 0.001 and HR: 1.57, 95 % CI 1.22–2.03, p  = 0.001, respectively) and distant relapse-free survival (DRFS) (HR: 1.63, 95 % CI 1.23–2.18, p  = 0.001 and HR: 1.55, 95 % CI 1.23–1.97, p  = 0.0002, respectively). Paradoxically, expression of pEGFR was associated with a significantly improved OS (HR: 0.67 95 % CI 0.50–0.91, p  = 0.01) and DRFS (HR: 0.73, 95 % CI 0.56–0.96, p  = 0.025). Expression of activated EGFR/HER2 provides additional information on ER positive breast cancer patients and suggests alternative treatment for those in this subgroup.</description><subject>Analysis</subject><subject>Antineoplastic Agents, Hormonal - therapeutic use</subject><subject>Biological and medical sciences</subject><subject>Breast cancer</subject><subject>Breast Neoplasms - drug therapy</subject><subject>Breast Neoplasms - metabolism</subject><subject>Breast Neoplasms - mortality</subject><subject>Cancer research</subject><subject>Cancer therapies</subject><subject>Care and treatment</subject><subject>Clinical Trial</subject><subject>Cohort Studies</subject><subject>Disease-Free Survival</subject><subject>Enzyme Activation</subject><subject>Epidermal growth factor</subject><subject>Female</subject><subject>Gynecology. Andrology. Obstetrics</subject><subject>Humans</subject><subject>Kaplan-Meier Estimate</subject><subject>Mammary gland diseases</subject><subject>Medical prognosis</subject><subject>Medical sciences</subject><subject>Medicine</subject><subject>Medicine &amp; Public Health</subject><subject>Middle Aged</subject><subject>Oncology</subject><subject>Phenols</subject><subject>Phosphorylation</subject><subject>Phosphotransferases</subject><subject>Protein Processing, Post-Translational</subject><subject>Proteins</subject><subject>Receptor, Epidermal Growth Factor - metabolism</subject><subject>Receptor, ErbB-2 - metabolism</subject><subject>Receptor, ErbB-3 - metabolism</subject><subject>Receptors, Estrogen - metabolism</subject><subject>Tamoxifen - therapeutic use</subject><subject>Tissue Array Analysis</subject><subject>Tumors</subject><subject>Tyrosine</subject><issn>0167-6806</issn><issn>1573-7217</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>8G5</sourceid><sourceid>BENPR</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNp1kV1rFDEUhoModq3-AG8kIIo3U5PM5GMuS6laKPRGr8PZzJk2dTZZk0xx_70ZdrWtKLkIOXnO1_sS8pqzE86Y_pg5k13fMC4awbRq9BOy4lK3jRZcPyUrxpVulGHqiLzI-ZYx1mvWPydHQkgluOhW5Or85zZhzj4GGkcKrvg7KDjQstsivaAJHW5LTPWdYvYB6XcfIGOmPlCENO3oOiHkQh0Eh-kleTbClPHV4T4m3z6dfz370lxefb44O71snGSsNFK0CBydNk6uRwOmBwntyA0obI3WsgOttNEd43xQ_SB7CbJjbg0tjoNk7TH5sK-7TfHHjLnYjc8OpwkCxjlbzoRWpq6pK_r2L_Q2zinU6SrV1gZGKHFPXcOE1ocxlgRuKWpPW6m6rmraVerkH1Q9A268iwFHX-OPEt4_SLhBmMpNjtNcquD5Mcj3oKs654Sj3Sa_gbSrQ9rFbbt321a37eK2XTZ7c9hsXm9w-JPx294KvDsAkB1MY6oe-XzPKcGYaRc1xZ7L9StcY3oo0f-6_wLI_r3X</recordid><startdate>20120701</startdate><enddate>20120701</enddate><creator>Spears, Melanie</creator><creator>Pederson, Hans Christian</creator><creator>Lyttle, Nicola</creator><creator>Gray, Claire</creator><creator>Quintayo, Mary Anne</creator><creator>Brogan, Lyndsay</creator><creator>J Thomas, Jeremy St</creator><creator>Kerr, Gillian R.</creator><creator>Jack, Wilma J. L.</creator><creator>Kunkler, Ian H.</creator><creator>Cameron, David A.</creator><creator>Chetty, Udi</creator><creator>Bartlett, John M. S.</creator><general>Springer US</general><general>Springer</general><general>Springer Nature B.V</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7TO</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>H94</scope><scope>K9-</scope><scope>K9.</scope><scope>M0R</scope><scope>M0S</scope><scope>M1P</scope><scope>M2O</scope><scope>MBDVC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><scope>7X8</scope></search><sort><creationdate>20120701</creationdate><title>Expression of activated type I receptor tyrosine kinases in early breast cancer</title><author>Spears, Melanie ; Pederson, Hans Christian ; Lyttle, Nicola ; Gray, Claire ; Quintayo, Mary Anne ; Brogan, Lyndsay ; J Thomas, Jeremy St ; Kerr, Gillian R. ; Jack, Wilma J. L. ; Kunkler, Ian H. ; Cameron, David A. ; Chetty, Udi ; Bartlett, John M. S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c500t-523ea1ec78c5bf8a89a5a3f18a6e387754a767874011d69d595a540cba3efd503</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Analysis</topic><topic>Antineoplastic Agents, Hormonal - therapeutic use</topic><topic>Biological and medical sciences</topic><topic>Breast cancer</topic><topic>Breast Neoplasms - drug therapy</topic><topic>Breast Neoplasms - metabolism</topic><topic>Breast Neoplasms - mortality</topic><topic>Cancer research</topic><topic>Cancer therapies</topic><topic>Care and treatment</topic><topic>Clinical Trial</topic><topic>Cohort Studies</topic><topic>Disease-Free Survival</topic><topic>Enzyme Activation</topic><topic>Epidermal growth factor</topic><topic>Female</topic><topic>Gynecology. Andrology. Obstetrics</topic><topic>Humans</topic><topic>Kaplan-Meier Estimate</topic><topic>Mammary gland diseases</topic><topic>Medical prognosis</topic><topic>Medical sciences</topic><topic>Medicine</topic><topic>Medicine &amp; Public Health</topic><topic>Middle Aged</topic><topic>Oncology</topic><topic>Phenols</topic><topic>Phosphorylation</topic><topic>Phosphotransferases</topic><topic>Protein Processing, Post-Translational</topic><topic>Proteins</topic><topic>Receptor, Epidermal Growth Factor - metabolism</topic><topic>Receptor, ErbB-2 - metabolism</topic><topic>Receptor, ErbB-3 - metabolism</topic><topic>Receptors, Estrogen - metabolism</topic><topic>Tamoxifen - therapeutic use</topic><topic>Tissue Array Analysis</topic><topic>Tumors</topic><topic>Tyrosine</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Spears, Melanie</creatorcontrib><creatorcontrib>Pederson, Hans Christian</creatorcontrib><creatorcontrib>Lyttle, Nicola</creatorcontrib><creatorcontrib>Gray, Claire</creatorcontrib><creatorcontrib>Quintayo, Mary Anne</creatorcontrib><creatorcontrib>Brogan, Lyndsay</creatorcontrib><creatorcontrib>J Thomas, Jeremy St</creatorcontrib><creatorcontrib>Kerr, Gillian R.</creatorcontrib><creatorcontrib>Jack, Wilma J. L.</creatorcontrib><creatorcontrib>Kunkler, Ian H.</creatorcontrib><creatorcontrib>Cameron, David A.</creatorcontrib><creatorcontrib>Chetty, Udi</creatorcontrib><creatorcontrib>Bartlett, John M. S.</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Oncogenes and Growth Factors Abstracts</collection><collection>Health &amp; Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Public Health Database</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Consumer Health Database (Alumni Edition)</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Consumer Health Database</collection><collection>Health &amp; Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Research Library</collection><collection>Research Library (Corporate)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest Central Basic</collection><collection>MEDLINE - Academic</collection><jtitle>Breast cancer research and treatment</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Spears, Melanie</au><au>Pederson, Hans Christian</au><au>Lyttle, Nicola</au><au>Gray, Claire</au><au>Quintayo, Mary Anne</au><au>Brogan, Lyndsay</au><au>J Thomas, Jeremy St</au><au>Kerr, Gillian R.</au><au>Jack, Wilma J. L.</au><au>Kunkler, Ian H.</au><au>Cameron, David A.</au><au>Chetty, Udi</au><au>Bartlett, John M. S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Expression of activated type I receptor tyrosine kinases in early breast cancer</atitle><jtitle>Breast cancer research and treatment</jtitle><stitle>Breast Cancer Res Treat</stitle><addtitle>Breast Cancer Res Treat</addtitle><date>2012-07-01</date><risdate>2012</risdate><volume>134</volume><issue>2</issue><spage>701</spage><epage>708</epage><pages>701-708</pages><issn>0167-6806</issn><eissn>1573-7217</eissn><coden>BCTRD6</coden><abstract>Overexpression of EGFR, HER2 and HER3 are known to be associated with poor outcome in breast cancer. Few studies have examined the clinical impact of activation of these proteins. In the present study, we evaluated EGFR, HER2 and HER3 and the activated (phosphorylated) forms of these proteins in patients with early breast cancer. EGFR, HER2, HER3, pEGFR, pHER2 and pHER3 expression was determined by immunohistochemical analysis of tissue microarrays constructed from tumours within the Edinburgh Breast Conservation Series (BCS). The BCS represents a fully-documented consecutive cohort of 1,812 patients treated by breast conservation surgery in a single institution. Our results demonstrate overexpression of HER2 and pHER2 to be associated with a significant reduction in overall survival (OS) (HR: 1.66, 95 % CI 1.22–2.26, p  = 0.001 and HR: 1.57, 95 % CI 1.22–2.03, p  = 0.001, respectively) and distant relapse-free survival (DRFS) (HR: 1.63, 95 % CI 1.23–2.18, p  = 0.001 and HR: 1.55, 95 % CI 1.23–1.97, p  = 0.0002, respectively). Paradoxically, expression of pEGFR was associated with a significantly improved OS (HR: 0.67 95 % CI 0.50–0.91, p  = 0.01) and DRFS (HR: 0.73, 95 % CI 0.56–0.96, p  = 0.025). Expression of activated EGFR/HER2 provides additional information on ER positive breast cancer patients and suggests alternative treatment for those in this subgroup.</abstract><cop>Boston</cop><pub>Springer US</pub><pmid>22562124</pmid><doi>10.1007/s10549-012-2076-7</doi><tpages>8</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0167-6806
ispartof Breast cancer research and treatment, 2012-07, Vol.134 (2), p.701-708
issn 0167-6806
1573-7217
language eng
recordid cdi_proquest_miscellaneous_1027682567
source MEDLINE; SpringerLink Journals
subjects Analysis
Antineoplastic Agents, Hormonal - therapeutic use
Biological and medical sciences
Breast cancer
Breast Neoplasms - drug therapy
Breast Neoplasms - metabolism
Breast Neoplasms - mortality
Cancer research
Cancer therapies
Care and treatment
Clinical Trial
Cohort Studies
Disease-Free Survival
Enzyme Activation
Epidermal growth factor
Female
Gynecology. Andrology. Obstetrics
Humans
Kaplan-Meier Estimate
Mammary gland diseases
Medical prognosis
Medical sciences
Medicine
Medicine & Public Health
Middle Aged
Oncology
Phenols
Phosphorylation
Phosphotransferases
Protein Processing, Post-Translational
Proteins
Receptor, Epidermal Growth Factor - metabolism
Receptor, ErbB-2 - metabolism
Receptor, ErbB-3 - metabolism
Receptors, Estrogen - metabolism
Tamoxifen - therapeutic use
Tissue Array Analysis
Tumors
Tyrosine
title Expression of activated type I receptor tyrosine kinases in early breast cancer
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-04T03%3A40%3A05IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_proqu&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Expression%20of%20activated%20type%20I%20receptor%20tyrosine%20kinases%20in%20early%20breast%20cancer&rft.jtitle=Breast%20cancer%20research%20and%20treatment&rft.au=Spears,%20Melanie&rft.date=2012-07-01&rft.volume=134&rft.issue=2&rft.spage=701&rft.epage=708&rft.pages=701-708&rft.issn=0167-6806&rft.eissn=1573-7217&rft.coden=BCTRD6&rft_id=info:doi/10.1007/s10549-012-2076-7&rft_dat=%3Cgale_proqu%3EA356447214%3C/gale_proqu%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1030118262&rft_id=info:pmid/22562124&rft_galeid=A356447214&rfr_iscdi=true