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Improving the Predi...
Improving the Prediction of Prostate Cancer Overall Survival by Supplementing Readily Available Clinical Data with Gene Expression Levels of IGFBP3 and F3 in Formalin-Fixed Paraffin Embedded Core Needle Biopsy Material
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- Peng, Zhuochun (author)
- Karolinska Institutet
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- Andersson, Karl (author)
- Uppsala universitet,Institutionen för immunologi, genetik och patologi,Ridgeview Instruments AB, Uppsala, Sweden.
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- Lindholm, Johan (author)
- Karolinska Univ Hosp, Clin Pathol Cytol, Stockholm, Sweden.
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- Dethlefsen, Olga (author)
- Karolinska Inst, Dept Med Epidemiol & Biostat, Stockholm, Sweden.
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- Pramana, Setia (author)
- Karolinska Inst, Dept Med Epidemiol & Biostat, Stockholm, Sweden.
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- Pawitan, Yudi (author)
- Karolinska Institutet
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- Nister, Monica (author)
- Karolinska Institutet
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- Nilsson, Sten (author)
- Karolinska Institutet
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- Li, Chunde (author)
- Karolinska Institutet
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(creator_code:org_t)
- 2016-01-05
- 2016
- English.
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In: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 11:1
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Abstract
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- Background A previously reported expression signature of three genes (IGFBP3, F3 and VGLL3) was shown to have potential prognostic value in estimating overall and cancer-specific survivals at diagnosis of prostate cancer in a pilot cohort study using freshly frozen Fine Needle Aspiration (FNA) samples. Methods We carried out a new cohort study with 241 prostate cancer patients diagnosed from 20042007 with a follow-up exceeding 6 years in order to verify the prognostic value of gene expression signature in formalin fixed paraffin embedded (FFPE) prostate core needle biopsy tissue samples. The cohort consisted of four patient groups with different survival times and death causes. A four multiplex one-step RT-qPCR test kit, designed and optimized for measuring the expression signature in FFPE core needle biopsy samples, was used. In archive FFPE biopsy samples the expression differences of two genes (IGFBP3 and F3) were measured. The survival time predictions using the current clinical parameters only, such as age at diagnosis, Gleason score, PSA value and tumor stage, and clinical parameters supplemented with the expression levels of IGFBP3 and F3, were compared. Results When combined with currently used clinical parameters, the gene expression levels of IGFBP3 and F3 are improving the prediction of survival time as compared to using clinical parameters alone. Conclusion The assessment of IGFBP3 and F3 gene expression levels in FFPE prostate cancer tissue would provide an improved survival prediction for prostate cancer patients at the time of diagnosis.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
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- ref (subject category)
- art (subject category)
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