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Intact and cleaved ...
Intact and cleaved plasma soluble urokinase receptor in patients with metastatic colorectal cancer treated with oxaliplatin with or without cetuximab
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- Tarpgaard, Line S. (author)
- Odense Univ Hosp, Dept Oncol, DK-5000 Odense, Denmark.;Univ Southern Denmark, Inst Clin Res, Odense, Denmark.
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- Christensen, Ib J. (author)
- Rigshosp, Finsen Lab, DK-2100 Copenhagen, Denmark.;Univ Copenhagen, Biotech Res & Innovat Ctr BRIC, DK-1168 Copenhagen, Denmark.
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- Hoyer-Hansen, Gunilla (author)
- Rigshosp, Finsen Lab, DK-2100 Copenhagen, Denmark.;Univ Copenhagen, Biotech Res & Innovat Ctr BRIC, DK-1168 Copenhagen, Denmark.
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- Lund, Ida K. (author)
- Rigshosp, Finsen Lab, DK-2100 Copenhagen, Denmark.;Univ Copenhagen, Biotech Res & Innovat Ctr BRIC, DK-1168 Copenhagen, Denmark.
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- Guren, Tormod K. (author)
- Oslo Univ Hosp, Dept Oncol, Oslo, Norway.;Oslo Univ Hosp, KG Jebsen Ctr Colorectal Canc Res, Oslo, Norway.
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- Glimelius, Bengt (author)
- Uppsala universitet,Experimentell och klinisk onkologi
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- Sorbye, Halfdan (author)
- Haukeland Hosp, Dept Oncol, N-5021 Bergen, Norway.
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- Tveit, Kjell M. (author)
- Oslo Univ Hosp, Dept Oncol, Oslo, Norway.;Oslo Univ Hosp, KG Jebsen Ctr Colorectal Canc Res, Oslo, Norway.
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- Nielsen, Hans Jorgen (author)
- Copenhagen Univ Hosp, Dept Surg Gastroenterol, Hvidovre, Denmark.
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- Moreira, Jose M. A. (author)
- Univ Copenhagen, Fac Hlth & Med Sci, Inst Vet Dis Biol, DK-1168 Copenhagen, Denmark.
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- Pfeiffer, Per (author)
- Odense Univ Hosp, Dept Oncol, DK-5000 Odense, Denmark.;Univ Southern Denmark, Inst Clin Res, Odense, Denmark.
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- Brunner, Nils (author)
- Univ Copenhagen, Fac Hlth & Med Sci, Inst Vet Dis Biol, DK-1168 Copenhagen, Denmark.
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Odense Univ Hosp, Dept Oncol, DK-5000 Odense, Denmark;Univ Southern Denmark, Inst Clin Res, Odense, Denmark. Rigshosp, Finsen Lab, DK-2100 Copenhagen, Denmark.;Univ Copenhagen, Biotech Res & Innovat Ctr BRIC, DK-1168 Copenhagen, Denmark. (creator_code:org_t)
- 2015-03-09
- 2015
- English.
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In: International Journal of Cancer. - : Wiley. - 0020-7136 .- 1097-0215. ; 137:10, s. 2470-2477
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Abstract
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- Circulating forms of the urokinase plasminogen activator receptor (uPAR) are associated with prognosis in patients with colorectal cancer. Preclinical studies have shown that uPAR can influence the state of phosphorylation and signalling activity of the epidermal growth factor receptor (EGFR) in a ligand-independent manner. The purpose of the study was to evaluate whether plasma soluble intact and cleaved uPAR(I-III) + (II-III) levels could identify a subpopulation of patients with metastatic colorectal cancer (mCRC) where treatment with cetuximab would have a beneficial effect. Plasma samples were available from 453 patients treated in the NORDIC VII study. Patients were randomized between FLOX and FLOX + cetuximab. The levels of uPAR(I-III) 1(II-III) were determined by time-resolved fluorescence immunoassay. We demonstrated that higher baseline plasma uPAR(I-III) 1(II-III) levels were significantly associated with shorter progression-free survival (PFS) (HR51.30, 1.14-1.48, p=0.0001) and overall survival (OS) (HR51.75, 1.52-2.02, p < 0.0001). Multivariate Cox analysis showed that plasma uPAR(I-III) 1(II-III) was an independent biomarker of short OS (HR51.45, 1.20-1.75, p=0.0001). There were no significant interactions between plasma uPAR(I-III) 1(II-III) levels, KRAS mutational status and treatment either PFS (p=0.43) or OS (p=0.095). However, further explorative analyses indicated that patients with low levels of circulating suPAR and a KRAS wild-type tumor have improved effect from treatment with FLOX+cetuximab as compared to patients with KRAS wild-type and high levels of suPAR. These results thus support the preclinical findings and should be further tested in an independent clinical data set.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
Keyword
- metastatic colorectal cancer
- suPAR forms
- EGFR inhibition
- cetuximab
Publication and Content Type
- ref (subject category)
- art (subject category)
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Tarpgaard, Line ...
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Christensen, Ib ...
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Hoyer-Hansen, Gu ...
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Lund, Ida K.
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Guren, Tormod K.
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Glimelius, Bengt
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Sorbye, Halfdan
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Tveit, Kjell M.
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Nielsen, Hans Jo ...
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Moreira, Jose M. ...
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Pfeiffer, Per
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Brunner, Nils
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- About the subject
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- MEDICAL AND HEALTH SCIENCES
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and Clinical Medicin ...
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Uppsala University
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Karolinska Institutet