Association of FOSL1 copy number alteration and triple negative breast tumors

Detalhes bibliográficos
Autor(a) principal: Serino,Leandro Tamião Rodrigues
Data de Publicação: 2019
Outros Autores: Jucoski,Tayana Schultz, Morais,Stephanie Bath de, Fernandes,Cíntia Callegari Coêlho, Lima,Rubens Silveira de, Urban,Cícero Andrade, Cavalli,Luciane Regina, Cavalli,Iglenir João, Ribeiro,Enilze Maria de Souza Fonseca
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Genetics and Molecular Biology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000100026
Resumo: Abstract Copy number alterations (CNAs) are a frequent feature in human breast cancer, and one of the hallmarks of genomic instability. The FOSL1, GSTP1 and CCND1 genes are located at 11q13, a cytoband commonly affected by CNA in breast cancer, with relevant function in progression and invasion. Our main goal was to analyze CNAs of these genes and determine their association with breast cancer subtypes. Seventy-three cases of invasive breast tumors [52 Luminal, 7 HER2+ and 14 triple negative (TNBC) subtypes] were analyzed by TaqMan assays. CNAs were observed for all genes, with gains more frequently observed. Gains of the FOSL1 gene were observed in 71% of the cases. This gene was the only one with a statistically significant difference (p<0.001) among tumor subtypes, with increased copy number in TNBC compared to luminal and HER2+. No significant association of CNA and clinical and histopathological parameters from the patients was observed. Additional studies in larger breast cancer patient cohorts based on more refined molecular subtypes are necessary to confirm the observed association of FOSL1 gain with aggressive breast tumors phenotypes.
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spelling Association of FOSL1 copy number alteration and triple negative breast tumorsTriple negative breast cancerTNBCDNA copy number alterationsCNAAbstract Copy number alterations (CNAs) are a frequent feature in human breast cancer, and one of the hallmarks of genomic instability. The FOSL1, GSTP1 and CCND1 genes are located at 11q13, a cytoband commonly affected by CNA in breast cancer, with relevant function in progression and invasion. Our main goal was to analyze CNAs of these genes and determine their association with breast cancer subtypes. Seventy-three cases of invasive breast tumors [52 Luminal, 7 HER2+ and 14 triple negative (TNBC) subtypes] were analyzed by TaqMan assays. CNAs were observed for all genes, with gains more frequently observed. Gains of the FOSL1 gene were observed in 71% of the cases. This gene was the only one with a statistically significant difference (p<0.001) among tumor subtypes, with increased copy number in TNBC compared to luminal and HER2+. No significant association of CNA and clinical and histopathological parameters from the patients was observed. Additional studies in larger breast cancer patient cohorts based on more refined molecular subtypes are necessary to confirm the observed association of FOSL1 gain with aggressive breast tumors phenotypes.Sociedade Brasileira de Genética2019-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000100026Genetics and Molecular Biology v.42 n.1 2019reponame:Genetics and Molecular Biologyinstname:Sociedade Brasileira de Genética (SBG)instacron:SBG10.1590/1678-4685-gmb-2017-0267info:eu-repo/semantics/openAccessSerino,Leandro Tamião RodriguesJucoski,Tayana SchultzMorais,Stephanie Bath deFernandes,Cíntia Callegari CoêlhoLima,Rubens Silveira deUrban,Cícero AndradeCavalli,Luciane ReginaCavalli,Iglenir JoãoRibeiro,Enilze Maria de Souza Fonsecaeng2019-03-25T00:00:00Zoai:scielo:S1415-47572019000100026Revistahttp://www.gmb.org.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||editor@gmb.org.br1678-46851415-4757opendoar:2019-03-25T00:00Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)false
dc.title.none.fl_str_mv Association of FOSL1 copy number alteration and triple negative breast tumors
title Association of FOSL1 copy number alteration and triple negative breast tumors
spellingShingle Association of FOSL1 copy number alteration and triple negative breast tumors
Serino,Leandro Tamião Rodrigues
Triple negative breast cancer
TNBC
DNA copy number alterations
CNA
title_short Association of FOSL1 copy number alteration and triple negative breast tumors
title_full Association of FOSL1 copy number alteration and triple negative breast tumors
title_fullStr Association of FOSL1 copy number alteration and triple negative breast tumors
title_full_unstemmed Association of FOSL1 copy number alteration and triple negative breast tumors
title_sort Association of FOSL1 copy number alteration and triple negative breast tumors
author Serino,Leandro Tamião Rodrigues
author_facet Serino,Leandro Tamião Rodrigues
Jucoski,Tayana Schultz
Morais,Stephanie Bath de
Fernandes,Cíntia Callegari Coêlho
Lima,Rubens Silveira de
Urban,Cícero Andrade
Cavalli,Luciane Regina
Cavalli,Iglenir João
Ribeiro,Enilze Maria de Souza Fonseca
author_role author
author2 Jucoski,Tayana Schultz
Morais,Stephanie Bath de
Fernandes,Cíntia Callegari Coêlho
Lima,Rubens Silveira de
Urban,Cícero Andrade
Cavalli,Luciane Regina
Cavalli,Iglenir João
Ribeiro,Enilze Maria de Souza Fonseca
author2_role author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Serino,Leandro Tamião Rodrigues
Jucoski,Tayana Schultz
Morais,Stephanie Bath de
Fernandes,Cíntia Callegari Coêlho
Lima,Rubens Silveira de
Urban,Cícero Andrade
Cavalli,Luciane Regina
Cavalli,Iglenir João
Ribeiro,Enilze Maria de Souza Fonseca
dc.subject.por.fl_str_mv Triple negative breast cancer
TNBC
DNA copy number alterations
CNA
topic Triple negative breast cancer
TNBC
DNA copy number alterations
CNA
description Abstract Copy number alterations (CNAs) are a frequent feature in human breast cancer, and one of the hallmarks of genomic instability. The FOSL1, GSTP1 and CCND1 genes are located at 11q13, a cytoband commonly affected by CNA in breast cancer, with relevant function in progression and invasion. Our main goal was to analyze CNAs of these genes and determine their association with breast cancer subtypes. Seventy-three cases of invasive breast tumors [52 Luminal, 7 HER2+ and 14 triple negative (TNBC) subtypes] were analyzed by TaqMan assays. CNAs were observed for all genes, with gains more frequently observed. Gains of the FOSL1 gene were observed in 71% of the cases. This gene was the only one with a statistically significant difference (p<0.001) among tumor subtypes, with increased copy number in TNBC compared to luminal and HER2+. No significant association of CNA and clinical and histopathological parameters from the patients was observed. Additional studies in larger breast cancer patient cohorts based on more refined molecular subtypes are necessary to confirm the observed association of FOSL1 gain with aggressive breast tumors phenotypes.
publishDate 2019
dc.date.none.fl_str_mv 2019-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000100026
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000100026
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1678-4685-gmb-2017-0267
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dc.publisher.none.fl_str_mv Sociedade Brasileira de Genética
publisher.none.fl_str_mv Sociedade Brasileira de Genética
dc.source.none.fl_str_mv Genetics and Molecular Biology v.42 n.1 2019
reponame:Genetics and Molecular Biology
instname:Sociedade Brasileira de Genética (SBG)
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reponame_str Genetics and Molecular Biology
collection Genetics and Molecular Biology
repository.name.fl_str_mv Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)
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