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Article type: Research Article
Authors: Birgisson, Helgia; * | Jirström, Karinb | Stenman, Ulf-Håkanc
Affiliations: [a] Department of Surgical Sciences, Colorectal Surgery, Uppsala University, Uppsala, Sweden | [b] Department of Clinical Sciences, Pathology, Lund University, Lund, Sweden | [c] Department of Clinical Chemistry, University of Helsinki, Helsinki, Finland
Correspondence: [*] Corresponding author: Helgi Birgisson, Department of Surgery, Uppsala University, 75185 Uppsala, Sweden. Tel.: +46 186 110 000; Fax: +46 186 114 632; E-mail: helgi.birgisson@surgsci.uu.se.
Abstract: Increased serum concentrations of the β subunit of human chorionic gonadotropin (hCGβ) are associated with adverse prognosis in several cancers. The aim of the present study was to analyse the association between serum hCGβ recurrence, and survival, in patients with colorectal cancer. The concentrations of hCGβ were determined in serum collected preoperatively from 324 patients with colorectal cancer, of whom 270 were curatively treated. The serum concentrations of hCGβ were associated with increasing age and they were higher in women than in men. Using the 75th percentile (1.55 pmol/L) as a cut-off for serum hCGβ, overall survival (OS) was shorter in patients with elevated concentrations (HR 1.95; 95% CI 1.39–2.74; P=0.004), and this association was stronger in women (P=0.022) than in men (P=0.061). In multivariate analyses including age, disease stage, tumour differentiation, vascular invasion and CEA, high serum hCGβ concentrations remained an independent prognostic factor for adverse OS in women (HR 2.26; 95%CI 1.39–3.67), but not in men (HR 0.78; 95%CI 0.41–1.51). The same trend was observed for disease free- and cancer specific survival. High serum concentration of hCGβ is an independent prognostic factor for adverse outcome in women with colorectal cancer.
Keywords: Cancer, colorectal, human chorionic gonadotropin beta, hCG, prognosis, survival
DOI: 10.3233/CBM-2012-00279
Journal: Cancer Biomarkers, vol. 11, no. 4, pp. 173-181, 2012
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