TY - JOUR
T1 - High serum levels of YKL-40 in patients with squamous cell carcinoma of the head and neck are associated with short survival
AU - Roslind, A.
AU - Johansen, J.S.
AU - Christensen, L.J.
AU - Kiss, K.
AU - Balslev, E.
AU - Nielsen, Dorte Lisbet
AU - Bentzen, Janne Gasseholm
AU - Price, P.A.
AU - Andersen, E.
N1 - Times Cited: 0ArticleEnglishRoslind, AUniv Copenhagen, Herlev Hosp, Dept Oncol, Herlev Ringvej 75, DK-2730 Herlev, DenmarkCited References Count: 48253MQWILEY-LISSDIV JOHN WILEY & SONS INC, 111 RIVER ST, HOBOKEN, NJ 07030 USAHOBOKEN
PY - 2008
Y1 - 2008
N2 - YKL-40 is a glycoprotein secreted by macrophages, neutrophils and malignant tumor cells. Elevated serum levels of YKL-40 are associated with poor prognosis in several malignancies. In this study, we examined the prognostic value of serum YKL-40 before treatment and during follow-up in patients with squamous cell carcinoma of the head and neck (HNSCC). YKL-40 was determined by ELISA retrospectively in serum from 173 patients with primary HNSCC before treatment and up to 2 years after treatment. Median follow-up time was 7.9 years. YKL-40 protein expression in tumor biopsies was assessed by immunohistochemistry in 50 patients. Pretreatment serum YKL-40 was elevated in 53%. Patients with high serum YKL-40 had shorter survival than patients with normal serum YKL-40 (33 vs. 84 months; p = 0.008). Multivariate Cox analysis including pretreatment serum YKL-40, age, sex, primary tumor site, TNM classification and treatment demonstrated that TNM classification (HR = 2.61, p = 0.02) and serum YKL-40 (log-transformed continuous variable: HR = 1.55, p < 0.0001) were independent prognostic variables of overall survival (OS). Multivariate Cox analysis demonstrated that TNM classification (HR = 5.77, p = 0.001) and serum YKL-40 (dichotomous variable: HR = 2.75, p = 0.01) were independent predictors of recurrence-free survival. During follow-up after radiotherapy, a high serum YKL-40 (log-transformed continuous variable) in patients with TNM Stage III and TV disease predicted poorer OS within 6 months (HR = 1.95, p < 0.0001). Immunohistochemical analysis showed YKL-40 expression in the malignant tumor cells. In conclusion, serum YKL-40 was demonstrated to be an independent prognostic biomarker of recurrence-free and overall survival in patients with HNSCC. (C) 2007 Wiley-Liss, Inc
Udgivelsesdato: 2008/2/15
AB - YKL-40 is a glycoprotein secreted by macrophages, neutrophils and malignant tumor cells. Elevated serum levels of YKL-40 are associated with poor prognosis in several malignancies. In this study, we examined the prognostic value of serum YKL-40 before treatment and during follow-up in patients with squamous cell carcinoma of the head and neck (HNSCC). YKL-40 was determined by ELISA retrospectively in serum from 173 patients with primary HNSCC before treatment and up to 2 years after treatment. Median follow-up time was 7.9 years. YKL-40 protein expression in tumor biopsies was assessed by immunohistochemistry in 50 patients. Pretreatment serum YKL-40 was elevated in 53%. Patients with high serum YKL-40 had shorter survival than patients with normal serum YKL-40 (33 vs. 84 months; p = 0.008). Multivariate Cox analysis including pretreatment serum YKL-40, age, sex, primary tumor site, TNM classification and treatment demonstrated that TNM classification (HR = 2.61, p = 0.02) and serum YKL-40 (log-transformed continuous variable: HR = 1.55, p < 0.0001) were independent prognostic variables of overall survival (OS). Multivariate Cox analysis demonstrated that TNM classification (HR = 5.77, p = 0.001) and serum YKL-40 (dichotomous variable: HR = 2.75, p = 0.01) were independent predictors of recurrence-free survival. During follow-up after radiotherapy, a high serum YKL-40 (log-transformed continuous variable) in patients with TNM Stage III and TV disease predicted poorer OS within 6 months (HR = 1.95, p < 0.0001). Immunohistochemical analysis showed YKL-40 expression in the malignant tumor cells. In conclusion, serum YKL-40 was demonstrated to be an independent prognostic biomarker of recurrence-free and overall survival in patients with HNSCC. (C) 2007 Wiley-Liss, Inc
Udgivelsesdato: 2008/2/15
M3 - Journal article
SN - 0020-7136
VL - 122
SP - 857
EP - 863
JO - International Journal of Cancer
JF - International Journal of Cancer
IS - 4
ER -