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Correlative Analysis of miRNA Expression and Oncotype Dx Recurrence Score in Estrogen Receptor Positive Breast Carcinomas

Altered expression of miRNAs has been observed in many types of cancer, including breast cancer, and shown to contribute to cancer growth, aggressiveness, and response to therapies. In this pilot study, we investigated the possible correlation of miRNAs with risk of recurrence of estrogen receptor p...

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Autores principales: Emmadi, Rajyasree, Canestrari, Emanuele, Arbieva, Zarema H., Mu, Wenbo, Dai, Yang, Frasor, Jonna, Wiley, Elizabeth
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4696739/
https://www.ncbi.nlm.nih.gov/pubmed/26717565
http://dx.doi.org/10.1371/journal.pone.0145346
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author Emmadi, Rajyasree
Canestrari, Emanuele
Arbieva, Zarema H.
Mu, Wenbo
Dai, Yang
Frasor, Jonna
Wiley, Elizabeth
author_facet Emmadi, Rajyasree
Canestrari, Emanuele
Arbieva, Zarema H.
Mu, Wenbo
Dai, Yang
Frasor, Jonna
Wiley, Elizabeth
author_sort Emmadi, Rajyasree
collection PubMed
description Altered expression of miRNAs has been observed in many types of cancer, including breast cancer, and shown to contribute to cancer growth, aggressiveness, and response to therapies. In this pilot study, we investigated the possible correlation of miRNAs with risk of recurrence of estrogen receptor positive, lymph node-negative mammary carcinomas as determined by the Oncotype DX(®) Breast Cancer assay. To accomplish this, we extracted RNA from a collection of breast carcinomas that had previously been analyzed by Oncotype DX(®). Multiple Let-7 family members were negatively correlated with the recurrence score (RS), which is consistent with their tumor suppressor properties. Additional miRNAs were found to positively correlate with RS, including miR-377-5p, miR-633b, miR-548t and miR-3648. Pathway analysis of putative and validated targets suggests that these miRNAs may have a diverse range of functions that may contribute to tumor recurrence. Taken together, these findings provide evidence that a miRNA expression signature can be developed to aid existing methods to determine the risk of recurrence for women with estrogen receptor positive breast cancers treated with endocrine therapy.
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spelling pubmed-46967392016-01-13 Correlative Analysis of miRNA Expression and Oncotype Dx Recurrence Score in Estrogen Receptor Positive Breast Carcinomas Emmadi, Rajyasree Canestrari, Emanuele Arbieva, Zarema H. Mu, Wenbo Dai, Yang Frasor, Jonna Wiley, Elizabeth PLoS One Research Article Altered expression of miRNAs has been observed in many types of cancer, including breast cancer, and shown to contribute to cancer growth, aggressiveness, and response to therapies. In this pilot study, we investigated the possible correlation of miRNAs with risk of recurrence of estrogen receptor positive, lymph node-negative mammary carcinomas as determined by the Oncotype DX(®) Breast Cancer assay. To accomplish this, we extracted RNA from a collection of breast carcinomas that had previously been analyzed by Oncotype DX(®). Multiple Let-7 family members were negatively correlated with the recurrence score (RS), which is consistent with their tumor suppressor properties. Additional miRNAs were found to positively correlate with RS, including miR-377-5p, miR-633b, miR-548t and miR-3648. Pathway analysis of putative and validated targets suggests that these miRNAs may have a diverse range of functions that may contribute to tumor recurrence. Taken together, these findings provide evidence that a miRNA expression signature can be developed to aid existing methods to determine the risk of recurrence for women with estrogen receptor positive breast cancers treated with endocrine therapy. Public Library of Science 2015-12-30 /pmc/articles/PMC4696739/ /pubmed/26717565 http://dx.doi.org/10.1371/journal.pone.0145346 Text en © 2015 Emmadi et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Emmadi, Rajyasree
Canestrari, Emanuele
Arbieva, Zarema H.
Mu, Wenbo
Dai, Yang
Frasor, Jonna
Wiley, Elizabeth
Correlative Analysis of miRNA Expression and Oncotype Dx Recurrence Score in Estrogen Receptor Positive Breast Carcinomas
title Correlative Analysis of miRNA Expression and Oncotype Dx Recurrence Score in Estrogen Receptor Positive Breast Carcinomas
title_full Correlative Analysis of miRNA Expression and Oncotype Dx Recurrence Score in Estrogen Receptor Positive Breast Carcinomas
title_fullStr Correlative Analysis of miRNA Expression and Oncotype Dx Recurrence Score in Estrogen Receptor Positive Breast Carcinomas
title_full_unstemmed Correlative Analysis of miRNA Expression and Oncotype Dx Recurrence Score in Estrogen Receptor Positive Breast Carcinomas
title_short Correlative Analysis of miRNA Expression and Oncotype Dx Recurrence Score in Estrogen Receptor Positive Breast Carcinomas
title_sort correlative analysis of mirna expression and oncotype dx recurrence score in estrogen receptor positive breast carcinomas
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4696739/
https://www.ncbi.nlm.nih.gov/pubmed/26717565
http://dx.doi.org/10.1371/journal.pone.0145346
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