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Proteomic analysis identifies candidate proteins associated with distant recurrences in breast cancer after adjuvant chemotherapy.

Niméus, Emma LU ; Malmström, Johan LU orcid ; Johnsson, Anders LU ; Marko-Varga, György LU and Fernö, Mårten LU (2007) In Journal of Pharmaceutical and Biomedical Analysis 43(3). p.1086-1093
Abstract
Breast cancer is a heterogenous disease and it is of importance to select patients with regard to different prognosis and treatment sensitivity to individualize treatment regimes. In this study we successfully adapted a protein extraction protocol from mRNA extracted tumor samples enabling two-dimensional gel electrophoresis (2-DE) analysis of samples previously analyzed by cDNA microarray. The aim was to find candidate proteins that distinguish breast cancer patients with or without recurrences after adjuvant CMF (cyclophosphamide, methotrexate and 5-FU) treatment within four years to follow-up. We identified several proteins distinguishing the recurrence group from the non-recurrence group, especially in the ER and PgR positive subgroup... (More)
Breast cancer is a heterogenous disease and it is of importance to select patients with regard to different prognosis and treatment sensitivity to individualize treatment regimes. In this study we successfully adapted a protein extraction protocol from mRNA extracted tumor samples enabling two-dimensional gel electrophoresis (2-DE) analysis of samples previously analyzed by cDNA microarray. The aim was to find candidate proteins that distinguish breast cancer patients with or without recurrences after adjuvant CMF (cyclophosphamide, methotrexate and 5-FU) treatment within four years to follow-up. We identified several proteins distinguishing the recurrence group from the non-recurrence group, especially in the ER and PgR positive subgroup (n = 7). The induced proteins were involved in translation/folding, iron ion binding, and protease inhibition, whereas proteins involved in signaling, ubiquitination, and splicing were decreased in expression. These results show that it is possible to use 2-DE to separate high abundant proteins in breast cancer tissue and to find discriminating proteins to identify patients with different prognosis after adjuvant CMF treatment. (Less)
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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
drug resistance, breast cancer, prognostic markers, two-dimensional gel electrophoresis
in
Journal of Pharmaceutical and Biomedical Analysis
volume
43
issue
3
pages
1086 - 1093
publisher
Elsevier
external identifiers
  • wos:000244623000040
  • scopus:33846593395
  • pmid:17085005
ISSN
0731-7085
DOI
10.1016/j.jpba.2006.09.019
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Analytical Chemistry (S/LTH) (011001004), Division V (013230900), Department of Experimental Medical Science (013210000), Oncology, MV (013035000), Lung Biology (013212002)
id
ca1accd0-43aa-44f8-8fa7-d776f495f06e (old id 163421)
date added to LUP
2016-04-01 11:54:00
date last changed
2022-03-13 02:17:40
@article{ca1accd0-43aa-44f8-8fa7-d776f495f06e,
  abstract     = {{Breast cancer is a heterogenous disease and it is of importance to select patients with regard to different prognosis and treatment sensitivity to individualize treatment regimes. In this study we successfully adapted a protein extraction protocol from mRNA extracted tumor samples enabling two-dimensional gel electrophoresis (2-DE) analysis of samples previously analyzed by cDNA microarray. The aim was to find candidate proteins that distinguish breast cancer patients with or without recurrences after adjuvant CMF (cyclophosphamide, methotrexate and 5-FU) treatment within four years to follow-up. We identified several proteins distinguishing the recurrence group from the non-recurrence group, especially in the ER and PgR positive subgroup (n = 7). The induced proteins were involved in translation/folding, iron ion binding, and protease inhibition, whereas proteins involved in signaling, ubiquitination, and splicing were decreased in expression. These results show that it is possible to use 2-DE to separate high abundant proteins in breast cancer tissue and to find discriminating proteins to identify patients with different prognosis after adjuvant CMF treatment.}},
  author       = {{Niméus, Emma and Malmström, Johan and Johnsson, Anders and Marko-Varga, György and Fernö, Mårten}},
  issn         = {{0731-7085}},
  keywords     = {{drug resistance; breast cancer; prognostic markers; two-dimensional gel electrophoresis}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{1086--1093}},
  publisher    = {{Elsevier}},
  series       = {{Journal of Pharmaceutical and Biomedical Analysis}},
  title        = {{Proteomic analysis identifies candidate proteins associated with distant recurrences in breast cancer after adjuvant chemotherapy.}},
  url          = {{http://dx.doi.org/10.1016/j.jpba.2006.09.019}},
  doi          = {{10.1016/j.jpba.2006.09.019}},
  volume       = {{43}},
  year         = {{2007}},
}