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Nuclear Receptor Coactivator 2 Promotes Human Breast Cancer Cell Growth by Positively Regulating the MAPK/ERK Pathway

As a member of the p160 steroid receptor coactivator (SRC) family, nuclear receptor coactivator 2 (NCOA2) is known to play essential roles in many physiological and pathological processes, including development, endocrine regulation, and tumorigenesis. However, the biological function of NCOA2 in br...

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Autores principales: Cai, Mengjiao, Liang, Xin, Sun, Xiao, Chen, Huan, Dong, Yiping, Wu, Lingzhi, Gu, Suxi, Han, Suxia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6434718/
https://www.ncbi.nlm.nih.gov/pubmed/30941313
http://dx.doi.org/10.3389/fonc.2019.00164
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author Cai, Mengjiao
Liang, Xin
Sun, Xiao
Chen, Huan
Dong, Yiping
Wu, Lingzhi
Gu, Suxi
Han, Suxia
author_facet Cai, Mengjiao
Liang, Xin
Sun, Xiao
Chen, Huan
Dong, Yiping
Wu, Lingzhi
Gu, Suxi
Han, Suxia
author_sort Cai, Mengjiao
collection PubMed
description As a member of the p160 steroid receptor coactivator (SRC) family, nuclear receptor coactivator 2 (NCOA2) is known to play essential roles in many physiological and pathological processes, including development, endocrine regulation, and tumorigenesis. However, the biological function of NCOA2 in breast cancer is not fully understood. We found that the copy number of the NCOA2 gene was frequently amplified in four breast cancers datasets, varying from 6 to 10%, and the mRNA levels of NCOA2 were also upregulated in 11% of the sequenced cases/patients (TCGA provisional dataset). Next, we confirmed that NCOA2 silencing significantly suppressed cell proliferation in different breast cancer cell lines, by inducing cell cycle arrest and apoptosis. Mechanistically, whole-transcriptome sequencing (RNA-Seq) analysis showed that NCOA2 depletion leads to downregulation of the MAPK/ERK signaling cascade, possibly via downregulating NCOA2's downstream target RASEF. In conclusion, our results suggest NCOA2 as a potential target of therapeutics against breast cancer.
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spelling pubmed-64347182019-04-02 Nuclear Receptor Coactivator 2 Promotes Human Breast Cancer Cell Growth by Positively Regulating the MAPK/ERK Pathway Cai, Mengjiao Liang, Xin Sun, Xiao Chen, Huan Dong, Yiping Wu, Lingzhi Gu, Suxi Han, Suxia Front Oncol Oncology As a member of the p160 steroid receptor coactivator (SRC) family, nuclear receptor coactivator 2 (NCOA2) is known to play essential roles in many physiological and pathological processes, including development, endocrine regulation, and tumorigenesis. However, the biological function of NCOA2 in breast cancer is not fully understood. We found that the copy number of the NCOA2 gene was frequently amplified in four breast cancers datasets, varying from 6 to 10%, and the mRNA levels of NCOA2 were also upregulated in 11% of the sequenced cases/patients (TCGA provisional dataset). Next, we confirmed that NCOA2 silencing significantly suppressed cell proliferation in different breast cancer cell lines, by inducing cell cycle arrest and apoptosis. Mechanistically, whole-transcriptome sequencing (RNA-Seq) analysis showed that NCOA2 depletion leads to downregulation of the MAPK/ERK signaling cascade, possibly via downregulating NCOA2's downstream target RASEF. In conclusion, our results suggest NCOA2 as a potential target of therapeutics against breast cancer. Frontiers Media S.A. 2019-03-19 /pmc/articles/PMC6434718/ /pubmed/30941313 http://dx.doi.org/10.3389/fonc.2019.00164 Text en Copyright © 2019 Cai, Liang, Sun, Chen, Dong, Wu, Gu and Han. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Oncology
Cai, Mengjiao
Liang, Xin
Sun, Xiao
Chen, Huan
Dong, Yiping
Wu, Lingzhi
Gu, Suxi
Han, Suxia
Nuclear Receptor Coactivator 2 Promotes Human Breast Cancer Cell Growth by Positively Regulating the MAPK/ERK Pathway
title Nuclear Receptor Coactivator 2 Promotes Human Breast Cancer Cell Growth by Positively Regulating the MAPK/ERK Pathway
title_full Nuclear Receptor Coactivator 2 Promotes Human Breast Cancer Cell Growth by Positively Regulating the MAPK/ERK Pathway
title_fullStr Nuclear Receptor Coactivator 2 Promotes Human Breast Cancer Cell Growth by Positively Regulating the MAPK/ERK Pathway
title_full_unstemmed Nuclear Receptor Coactivator 2 Promotes Human Breast Cancer Cell Growth by Positively Regulating the MAPK/ERK Pathway
title_short Nuclear Receptor Coactivator 2 Promotes Human Breast Cancer Cell Growth by Positively Regulating the MAPK/ERK Pathway
title_sort nuclear receptor coactivator 2 promotes human breast cancer cell growth by positively regulating the mapk/erk pathway
topic Oncology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6434718/
https://www.ncbi.nlm.nih.gov/pubmed/30941313
http://dx.doi.org/10.3389/fonc.2019.00164
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