PMID: 20099501Jan 27, 2010Paper

Serum YKL-40 levels in patients with ovarian cancer and women with BRCA1 gene mutation--comparison to CA 125 antigen

European Journal of Gynaecological Oncology
A Chudecka-GłazI Rzepka-Górska

Abstract

Our work was undertaken to determine the usefulness ofYKL-40 as a tumor marker in patients with ovarian cancer and women with BRCA 1 gene mutations. Our study population consisted of 111 patients. They were divided into five study groups: I--newly diagnosed ovarian caner, II--recurrence of ovarian cancer, III--complete remission, IV--benign epithelial tumors and V--patients with BRCA 1 gene mutations. YKL-40 and CA 125 were determined in patient sera. YKL-40 in newly diagnosed ovarian cancer patients was significantly higher (181.17 n/ml) than in patients with BRCA 1 gene mutation (97.74 ng/ml, p < 0.01), women with benign epithelial cancer (57.19 ng/ml, p < 0.005) and patients with ovarian cancer at the time of complete remission (58.12 ng/ml, p < 0.005). Taking 124 ng/ml as a cut-off value for YKL-40 (95th percentile for healthly women) we observed higher levels in 50% of patients from group I and in 38% from group II. YKL-40 appears to demonstrate no advantage over CA 125 as a biomarker of ovarian cancer, particularly in women with early-stage tumors. More research is needed on carriers of the BRCA 1 gene muation in view of the elevated YKL-40 concentrations in this group.

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