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Expression of the R...
Expression of the RNA-binding protein RBM3 is associated with a favourable prognosis and cisplatin sensitivity in epithelial ovarian cancer
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- Ehlén, Åsa (author)
- Lund University,Lunds universitet,Patologi, Malmö,Forskargrupper vid Lunds universitet,Pathology, Malmö,Lund University Research Groups
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Brennan, Donal J. (author)
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- Nodin, Björn (author)
- Lund University,Lunds universitet,Tumörmikromiljö,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Patologi, Malmö,Forskargrupper vid Lunds universitet,Tumor microenvironment,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Pathology, Malmö,Lund University Research Groups
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O'Connor, Darran P. (author)
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- Eberhard, Jakob (author)
- Lund University,Lunds universitet,Bröstcancer-genetik,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Breastcancer-genetics,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Alvarado-Kristensson, Maria (author)
- Lund University,Lunds universitet,Molekylär patologi, Malmö,Forskargrupper vid Lunds universitet,Patologi, Malmö,Molecular Pathology, Malmö,Lund University Research Groups,Pathology, Malmö
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Jeffrey, Ian B. (author)
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- Manjer, Jonas (author)
- Lund University,Lunds universitet,Kirurgi,Forskargrupper vid Lunds universitet,Surgery,Lund University Research Groups
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- Brändstedt, Jenny (author)
- Lund University,Lunds universitet,Tumörmikromiljö,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Patologi, Malmö,Forskargrupper vid Lunds universitet,Tumor microenvironment,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Pathology, Malmö,Lund University Research Groups
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- Uhlén, Mathias (author)
- KTH,Proteomik
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- Pontén, Fredrik (author)
- Uppsala universitet,Institutionen för genetik och patologi
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- Jirström, Karin (author)
- Lund University,Lunds universitet,Tumörmikromiljö,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Tumor microenvironment,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine
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(creator_code:org_t)
- 2010-08-20
- 2010
- English.
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In: Journal of Translational Medicine. - : Springer Science and Business Media LLC. - 1479-5876 .- 1479-5876. ; 8, s. 78-
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Abstract
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- Background: We recently demonstrated that increased expression of the RNA-binding protein RBM3 is associated with a favourable prognosis in breast cancer. The aim of this study was to examine the prognostic value of RBM3 mRNA and protein expression in epithelial ovarian cancer (EOC) and the cisplatin response upon RBM3 depletion in a cisplatin-sensitive ovarian cancer cell line. Methods: RBM3 mRNA expression was analysed in tumors from a cohort of 267 EOC cases (Cohort I) and RBM3 protein expression was analysed using immunohistochemistry (IHC) in an independent cohort of 154 prospectively collected EOC cases (Cohort II). Kaplan Meier analysis and Cox proportional hazards modelling were applied to assess the relationship between RBM3 and recurrence free survival (RFS) and overall survival (OS). Immunoblotting and IHC were used to examine the expression of RBM3 in a cisplatin-resistant ovarian cancer cell line A2780-Cp70 and its cisplatin-responsive parental cell line A2780. The impact of RBM3 on cisplatin response in EOC was assessed using siRNA-mediated silencing of RBM3 in A2780 cells followed by cell viability assay and cell cycle analysis. Results: Increased RBM3 mRNA expression was associated with a prolonged RFS (HR = 0.64, 95% CI = 0.47-0.86, p = 0.003) and OS (HR = 0.64, 95% CI = 0.44-0.95, p = 0.024) in Cohort I. Multivariate analysis confirmed that RBM3 mRNA expression was an independent predictor of a prolonged RFS, (HR = 0.61, 95% CI = 0.44-0.84, p = 0.003) and OS (HR = 0.62, 95% CI = 0.41-0.95; p = 0.028) in Cohort I. In Cohort II, RBM3 protein expression was associated with a prolonged OS (HR = 0.53, 95% CI = 0.35-0.79, p = 0.002) confirmed by multivariate analysis (HR = 0.61, 95% CI = 0.40-0.92, p = 0.017). RBM3 mRNA and protein expression levels were significantly higher in the cisplatin sensitive A2780 cell line compared to the cisplatin resistant A2780-Cp70 derivative. siRNA-mediated silencing of RBM3 expression in the A2780 cells resulted in a decreased sensitivity to cisplatin as demonstrated by increased cell viability and reduced proportion of cells arrested in the G2/M-phase. Conclusions: These data demonstrate that RBM3 expression is associated with cisplatin sensitivity in vitro and with a good prognosis in EOC. Taken together these findings suggest that RBM3 may be a useful prognostic and treatment predictive marker in EOC.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
Keyword
- COLD-SHOCK PROTEIN
- INDUCED CELL-DEATH
- BREAST-CANCER
- ATLAS
- GENE
- GENERATION
- TISSUES
- STRESS
- FAMILY
- ARRAY
- Bioengineering
- Bioteknik
- MEDICINE
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Ehlén, Åsa
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Brennan, Donal J ...
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Nodin, Björn
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O'Connor, Darran ...
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Eberhard, Jakob
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Alvarado-Kristen ...
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show more...
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Jeffrey, Ian B.
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Manjer, Jonas
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Brändstedt, Jenn ...
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Uhlén, Mathias
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Pontén, Fredrik
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Jirström, Karin
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Industrial Biote ...
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Cancer and Oncol ...
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Journal of Trans ...
- By the university
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Royal Institute of Technology
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Lund University
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Uppsala University