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Differentially expressed proteins in ER+ MCF7 and ER- MDA- MB-231 human breast cancer cells by RhoGDI-α silencing and overexpression

Background: The consequence of Rho GDP dissociation inhibitor alpha (RhoGDIα) activity on migration and invasion of estrogen receptor positive (ER+) and negative (ER-) breast cancer cells has not been studied using the proteomic approach. Changes in expression of RhoGDIα and other proteins interac...

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Main Authors: Hooshmand, Somayeh, Ghaderi, Abbas, Yusoff, Khatijah, Karuppiah, Thilakavathy, Rosli, Rozita, Mojtahedi, Zahra
Format: Article
Language:English
Published: Asian Pacific Organization for Cancer Prevention 2014
Online Access:http://psasir.upm.edu.my/id/eprint/37106/1/Differentially%20expressed%20proteins%20in%20ER.pdf
http://psasir.upm.edu.my/id/eprint/37106/
http://www.apocpcontrol.org/page/apjcp_issues_view.php?sid=Entrez:PubMed&id=pmid:24815488&key=2014.15.7.3311
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spelling my.upm.eprints.371062015-09-10T06:27:01Z http://psasir.upm.edu.my/id/eprint/37106/ Differentially expressed proteins in ER+ MCF7 and ER- MDA- MB-231 human breast cancer cells by RhoGDI-α silencing and overexpression Hooshmand, Somayeh Ghaderi, Abbas Yusoff, Khatijah Karuppiah, Thilakavathy Rosli, Rozita Mojtahedi, Zahra Background: The consequence of Rho GDP dissociation inhibitor alpha (RhoGDIα) activity on migration and invasion of estrogen receptor positive (ER+) and negative (ER-) breast cancer cells has not been studied using the proteomic approach. Changes in expression of RhoGDIα and other proteins interacting directly or indirectly with RhoGDIα in MCF7 and MDA-MB-231, with different metastatic potentials is of particular interest. Materials and Methods: ER+ MCF7 and ER- MDA-MB-231 cell lines were subjected to two-dimensional electrophoresis (2-DE) and spots of interest were identified by matrix-assisted laser desorption/ionization time of- flight/timeof- flight (MALDI-TOF/TOF) mass spectrometry (MS) analysis after downregulation of RhoGDIα using short interfering RNA (siRNA) and upregulated using GFP-tagged ORF clone of RhoGDIα. Results: The results showed a total of 35 proteins that were either up- or down-regulated in these cells. Here we identifed 9 and 15 proteins differentially expressed with silencing of RhoGDIα in MCF-7 and the MDA-MB-231 cells, respectively. In addition, 10 proteins were differentially expressed in the upregulation of RhoGDIα in MCF7, while only one protein was identified in the upregulation of RhoGDIα in MDA-MB-231. Based on the biological functions of these proteins, the results revealed that proteins involved in cell migration are more strongly altered with RhoGDI-α activity. Although several of these proteins have been previously indicated in tumorigenesis and invasiveness of breast cancer cells, some ohave not been previously reported to be involved in breast cancer migration. Hence, these proteins may serve as useful candidate biomarkers for tumorigenesis and invasiveness of breast cancer cells. Conclusions: Future studies are needed to determine the mechanisms by which these proteins regulate cell migration. The combination of RhoGDIα with other potential biomarkers may be a more promising approach in the inhibition of breast cancer cell migration. Asian Pacific Organization for Cancer Prevention 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/37106/1/Differentially%20expressed%20proteins%20in%20ER.pdf Hooshmand, Somayeh and Ghaderi, Abbas and Yusoff, Khatijah and Karuppiah, Thilakavathy and Rosli, Rozita and Mojtahedi, Zahra (2014) Differentially expressed proteins in ER+ MCF7 and ER- MDA- MB-231 human breast cancer cells by RhoGDI-α silencing and overexpression. Asian Pacific Journal of Cancer Prevention, 15 (7). pp. 3311-3317. ISSN 1513-7368 http://www.apocpcontrol.org/page/apjcp_issues_view.php?sid=Entrez:PubMed&id=pmid:24815488&key=2014.15.7.3311 10.7314/APJCP.2014.15.7.3311
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Background: The consequence of Rho GDP dissociation inhibitor alpha (RhoGDIα) activity on migration and invasion of estrogen receptor positive (ER+) and negative (ER-) breast cancer cells has not been studied using the proteomic approach. Changes in expression of RhoGDIα and other proteins interacting directly or indirectly with RhoGDIα in MCF7 and MDA-MB-231, with different metastatic potentials is of particular interest. Materials and Methods: ER+ MCF7 and ER- MDA-MB-231 cell lines were subjected to two-dimensional electrophoresis (2-DE) and spots of interest were identified by matrix-assisted laser desorption/ionization time of- flight/timeof- flight (MALDI-TOF/TOF) mass spectrometry (MS) analysis after downregulation of RhoGDIα using short interfering RNA (siRNA) and upregulated using GFP-tagged ORF clone of RhoGDIα. Results: The results showed a total of 35 proteins that were either up- or down-regulated in these cells. Here we identifed 9 and 15 proteins differentially expressed with silencing of RhoGDIα in MCF-7 and the MDA-MB-231 cells, respectively. In addition, 10 proteins were differentially expressed in the upregulation of RhoGDIα in MCF7, while only one protein was identified in the upregulation of RhoGDIα in MDA-MB-231. Based on the biological functions of these proteins, the results revealed that proteins involved in cell migration are more strongly altered with RhoGDI-α activity. Although several of these proteins have been previously indicated in tumorigenesis and invasiveness of breast cancer cells, some ohave not been previously reported to be involved in breast cancer migration. Hence, these proteins may serve as useful candidate biomarkers for tumorigenesis and invasiveness of breast cancer cells. Conclusions: Future studies are needed to determine the mechanisms by which these proteins regulate cell migration. The combination of RhoGDIα with other potential biomarkers may be a more promising approach in the inhibition of breast cancer cell migration.
format Article
author Hooshmand, Somayeh
Ghaderi, Abbas
Yusoff, Khatijah
Karuppiah, Thilakavathy
Rosli, Rozita
Mojtahedi, Zahra
spellingShingle Hooshmand, Somayeh
Ghaderi, Abbas
Yusoff, Khatijah
Karuppiah, Thilakavathy
Rosli, Rozita
Mojtahedi, Zahra
Differentially expressed proteins in ER+ MCF7 and ER- MDA- MB-231 human breast cancer cells by RhoGDI-α silencing and overexpression
author_facet Hooshmand, Somayeh
Ghaderi, Abbas
Yusoff, Khatijah
Karuppiah, Thilakavathy
Rosli, Rozita
Mojtahedi, Zahra
author_sort Hooshmand, Somayeh
title Differentially expressed proteins in ER+ MCF7 and ER- MDA- MB-231 human breast cancer cells by RhoGDI-α silencing and overexpression
title_short Differentially expressed proteins in ER+ MCF7 and ER- MDA- MB-231 human breast cancer cells by RhoGDI-α silencing and overexpression
title_full Differentially expressed proteins in ER+ MCF7 and ER- MDA- MB-231 human breast cancer cells by RhoGDI-α silencing and overexpression
title_fullStr Differentially expressed proteins in ER+ MCF7 and ER- MDA- MB-231 human breast cancer cells by RhoGDI-α silencing and overexpression
title_full_unstemmed Differentially expressed proteins in ER+ MCF7 and ER- MDA- MB-231 human breast cancer cells by RhoGDI-α silencing and overexpression
title_sort differentially expressed proteins in er+ mcf7 and er- mda- mb-231 human breast cancer cells by rhogdi-α silencing and overexpression
publisher Asian Pacific Organization for Cancer Prevention
publishDate 2014
url http://psasir.upm.edu.my/id/eprint/37106/1/Differentially%20expressed%20proteins%20in%20ER.pdf
http://psasir.upm.edu.my/id/eprint/37106/
http://www.apocpcontrol.org/page/apjcp_issues_view.php?sid=Entrez:PubMed&id=pmid:24815488&key=2014.15.7.3311
_version_ 1643831915781816320
score 13.211869

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