Potential use of PI3K pathway effectors and associated microRNAs as biomarkers of breast cancer prognosis

Autores
Perrone, Maria Cecilia; Graña, Karen Daniela; Werbach, Andrea; Rodriguez, Maria Jimena; Riggio, Marina; Enrico, Diego; Mando, Pablo; Amat, Mora; Novaro, Virginia
Año de publicación
2021
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
PI3K/AKT/mTOR pathway is frequently altered in breast tumors and has consequently become a promising therapeutic target; therefore, novel biomarkers are in need. In luminal breast cancer cell lines, we have previously found that AKT isoforms play distinct roles in tumor progression, with AKT1 promoting cell proliferation and AKT2 favoring cell migration and invasion. To further investigate the potential use of these proteins as breast cancer progression biomarkers, we analyzed tumor histology and expression of AKT1, AKT2 and downstream S6 phosphorylation (pS6) by immunohistochemistry in 55 luminal breast cancer samples. Our results showed that AKT1 expression decreased with greater tumor stage and Nottingham score, while AKT2 and pS6 were associated with poor prognostic factors such as higher nuclear grade and Nottingham score. We next performed RT-qPCR to evaluate the tumor expression of AKT-associated microRNAs and found that miR-34a and miR-126 correlated positively with AKT1 and negatively with AKT2 expression. In sum, low AKT1 and high AKT2 and pS6 levels appear to be associated with poor prognostic markers in luminal breast tumors. Moreover, evaluating microRNAs that are differentially associated with AKT1 and AKT2 isoforms could potentially be an advantageous tool to assess tumor progression in patient blood samples.
Fil: Perrone, Maria Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina
Fil: Graña, Karen Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina
Fil: Werbach, Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina
Fil: Rodriguez, Maria Jimena. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina
Fil: Riggio, Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina
Fil: Enrico, Diego. Instituto Alexander Fleming; Argentina
Fil: Mando, Pablo. Instituto Alexander Fleming.; Argentina
Fil: Amat, Mora. Instituto Alexander Fleming.; Argentina
Fil: Novaro, Virginia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina
Buenos Aires Breast Cancer Symposium
Buenos Aires
Argentina
Centro de Educación Médica e Investigaciones Clínicas “Norberto Quirno”
Consejo Nacional de Investigaciones Científicas y Técnicas
Instituto de Biología y Medicina Experimental
Instituto de Fisiología, Biología Molecular y Neurociencias
Instituto de Investigaciones en Medicina Traslacional
Instituto de Nanosistemas
Universidad Austral
Universidad de Buenos Aires
Universidad Nacional de San Martín
Materia
PI3K/AKT PATHWAY
BREAST CANCER
BIOMARKERS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/152545
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/152545
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Potential use of PI3K pathway effectors and associated microRNAs as biomarkers of breast cancer prognosisPerrone, Maria CeciliaGraña, Karen DanielaWerbach, AndreaRodriguez, Maria JimenaRiggio, MarinaEnrico, DiegoMando, PabloAmat, MoraNovaro, VirginiaPI3K/AKT PATHWAYBREAST CANCERBIOMARKERShttps://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3https://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3PI3K/AKT/mTOR pathway is frequently altered in breast tumors and has consequently become a promising therapeutic target; therefore, novel biomarkers are in need. In luminal breast cancer cell lines, we have previously found that AKT isoforms play distinct roles in tumor progression, with AKT1 promoting cell proliferation and AKT2 favoring cell migration and invasion. To further investigate the potential use of these proteins as breast cancer progression biomarkers, we analyzed tumor histology and expression of AKT1, AKT2 and downstream S6 phosphorylation (pS6) by immunohistochemistry in 55 luminal breast cancer samples. Our results showed that AKT1 expression decreased with greater tumor stage and Nottingham score, while AKT2 and pS6 were associated with poor prognostic factors such as higher nuclear grade and Nottingham score. We next performed RT-qPCR to evaluate the tumor expression of AKT-associated microRNAs and found that miR-34a and miR-126 correlated positively with AKT1 and negatively with AKT2 expression. In sum, low AKT1 and high AKT2 and pS6 levels appear to be associated with poor prognostic markers in luminal breast tumors. Moreover, evaluating microRNAs that are differentially associated with AKT1 and AKT2 isoforms could potentially be an advantageous tool to assess tumor progression in patient blood samples.Fil: Perrone, Maria Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; ArgentinaFil: Graña, Karen Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; ArgentinaFil: Werbach, Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; ArgentinaFil: Rodriguez, Maria Jimena. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; ArgentinaFil: Riggio, Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; ArgentinaFil: Enrico, Diego. Instituto Alexander Fleming; ArgentinaFil: Mando, Pablo. Instituto Alexander Fleming.; ArgentinaFil: Amat, Mora. Instituto Alexander Fleming.; ArgentinaFil: Novaro, Virginia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; ArgentinaBuenos Aires Breast Cancer SymposiumBuenos AiresArgentinaCentro de Educación Médica e Investigaciones Clínicas “Norberto Quirno”Consejo Nacional de Investigaciones Científicas y TécnicasInstituto de Biología y Medicina ExperimentalInstituto de Fisiología, Biología Molecular y NeurocienciasInstituto de Investigaciones en Medicina TraslacionalInstituto de NanosistemasUniversidad AustralUniversidad de Buenos AiresUniversidad Nacional de San MartínFundación Revista MedicinaKordon, Edith ClaudiaLanari, Claudia Lee MalvinaSimian, Marina2021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectSimposioJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/152545Potential use of PI3K pathway effectors and associated microRNAs as biomarkers of breast cancer prognosis; Buenos Aires Breast Cancer Symposium; Buenos Aires; Argentina; 2021; 30-300025-7680CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0025-76802021000600001&lng=es&nrm=iso&tlng=eninfo:eu-repo/semantics/altIdentifier/url/https://ba-bcs2020.com/info:eu-repo/semantics/altIdentifier/purl/http://ref.scielo.org/f45xp5Internacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:23:04Zoai:ri.conicet.gov.ar:11336/152545instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:23:04.399CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Potential use of PI3K pathway effectors and associated microRNAs as biomarkers of breast cancer prognosis
title Potential use of PI3K pathway effectors and associated microRNAs as biomarkers of breast cancer prognosis
spellingShingle Potential use of PI3K pathway effectors and associated microRNAs as biomarkers of breast cancer prognosis
Perrone, Maria Cecilia
PI3K/AKT PATHWAY
BREAST CANCER
BIOMARKERS
title_short Potential use of PI3K pathway effectors and associated microRNAs as biomarkers of breast cancer prognosis
title_full Potential use of PI3K pathway effectors and associated microRNAs as biomarkers of breast cancer prognosis
title_fullStr Potential use of PI3K pathway effectors and associated microRNAs as biomarkers of breast cancer prognosis
title_full_unstemmed Potential use of PI3K pathway effectors and associated microRNAs as biomarkers of breast cancer prognosis
title_sort Potential use of PI3K pathway effectors and associated microRNAs as biomarkers of breast cancer prognosis
dc.creator.none.fl_str_mv Perrone, Maria Cecilia
Graña, Karen Daniela
Werbach, Andrea
Rodriguez, Maria Jimena
Riggio, Marina
Enrico, Diego
Mando, Pablo
Amat, Mora
Novaro, Virginia
author Perrone, Maria Cecilia
author_facet Perrone, Maria Cecilia
Graña, Karen Daniela
Werbach, Andrea
Rodriguez, Maria Jimena
Riggio, Marina
Enrico, Diego
Mando, Pablo
Amat, Mora
Novaro, Virginia
author_role author
author2 Graña, Karen Daniela
Werbach, Andrea
Rodriguez, Maria Jimena
Riggio, Marina
Enrico, Diego
Mando, Pablo
Amat, Mora
Novaro, Virginia
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Kordon, Edith Claudia
Lanari, Claudia Lee Malvina
Simian, Marina
dc.subject.none.fl_str_mv PI3K/AKT PATHWAY
BREAST CANCER
BIOMARKERS
topic PI3K/AKT PATHWAY
BREAST CANCER
BIOMARKERS
purl_subject.fl_str_mv https://purl.org/becyt/ford/3.1
https://purl.org/becyt/ford/3
https://purl.org/becyt/ford/3.1
https://purl.org/becyt/ford/3
dc.description.none.fl_txt_mv PI3K/AKT/mTOR pathway is frequently altered in breast tumors and has consequently become a promising therapeutic target; therefore, novel biomarkers are in need. In luminal breast cancer cell lines, we have previously found that AKT isoforms play distinct roles in tumor progression, with AKT1 promoting cell proliferation and AKT2 favoring cell migration and invasion. To further investigate the potential use of these proteins as breast cancer progression biomarkers, we analyzed tumor histology and expression of AKT1, AKT2 and downstream S6 phosphorylation (pS6) by immunohistochemistry in 55 luminal breast cancer samples. Our results showed that AKT1 expression decreased with greater tumor stage and Nottingham score, while AKT2 and pS6 were associated with poor prognostic factors such as higher nuclear grade and Nottingham score. We next performed RT-qPCR to evaluate the tumor expression of AKT-associated microRNAs and found that miR-34a and miR-126 correlated positively with AKT1 and negatively with AKT2 expression. In sum, low AKT1 and high AKT2 and pS6 levels appear to be associated with poor prognostic markers in luminal breast tumors. Moreover, evaluating microRNAs that are differentially associated with AKT1 and AKT2 isoforms could potentially be an advantageous tool to assess tumor progression in patient blood samples.
Fil: Perrone, Maria Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina
Fil: Graña, Karen Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina
Fil: Werbach, Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina
Fil: Rodriguez, Maria Jimena. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina
Fil: Riggio, Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina
Fil: Enrico, Diego. Instituto Alexander Fleming; Argentina
Fil: Mando, Pablo. Instituto Alexander Fleming.; Argentina
Fil: Amat, Mora. Instituto Alexander Fleming.; Argentina
Fil: Novaro, Virginia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental. Fundación de Instituto de Biología y Medicina Experimental. Instituto de Biología y Medicina Experimental; Argentina
Buenos Aires Breast Cancer Symposium
Buenos Aires
Argentina
Centro de Educación Médica e Investigaciones Clínicas “Norberto Quirno”
Consejo Nacional de Investigaciones Científicas y Técnicas
Instituto de Biología y Medicina Experimental
Instituto de Fisiología, Biología Molecular y Neurociencias
Instituto de Investigaciones en Medicina Traslacional
Instituto de Nanosistemas
Universidad Austral
Universidad de Buenos Aires
Universidad Nacional de San Martín
description PI3K/AKT/mTOR pathway is frequently altered in breast tumors and has consequently become a promising therapeutic target; therefore, novel biomarkers are in need. In luminal breast cancer cell lines, we have previously found that AKT isoforms play distinct roles in tumor progression, with AKT1 promoting cell proliferation and AKT2 favoring cell migration and invasion. To further investigate the potential use of these proteins as breast cancer progression biomarkers, we analyzed tumor histology and expression of AKT1, AKT2 and downstream S6 phosphorylation (pS6) by immunohistochemistry in 55 luminal breast cancer samples. Our results showed that AKT1 expression decreased with greater tumor stage and Nottingham score, while AKT2 and pS6 were associated with poor prognostic factors such as higher nuclear grade and Nottingham score. We next performed RT-qPCR to evaluate the tumor expression of AKT-associated microRNAs and found that miR-34a and miR-126 correlated positively with AKT1 and negatively with AKT2 expression. In sum, low AKT1 and high AKT2 and pS6 levels appear to be associated with poor prognostic markers in luminal breast tumors. Moreover, evaluating microRNAs that are differentially associated with AKT1 and AKT2 isoforms could potentially be an advantageous tool to assess tumor progression in patient blood samples.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Simposio
Journal
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/152545
Potential use of PI3K pathway effectors and associated microRNAs as biomarkers of breast cancer prognosis; Buenos Aires Breast Cancer Symposium; Buenos Aires; Argentina; 2021; 30-30
0025-7680
CONICET Digital
CONICET
url http://hdl.handle.net/11336/152545
identifier_str_mv Potential use of PI3K pathway effectors and associated microRNAs as biomarkers of breast cancer prognosis; Buenos Aires Breast Cancer Symposium; Buenos Aires; Argentina; 2021; 30-30
0025-7680
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0025-76802021000600001&lng=es&nrm=iso&tlng=en
info:eu-repo/semantics/altIdentifier/url/https://ba-bcs2020.com/
info:eu-repo/semantics/altIdentifier/purl/http://ref.scielo.org/f45xp5
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Fundación Revista Medicina
publisher.none.fl_str_mv Fundación Revista Medicina
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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