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PLoS By Category | Recent PLoS Articles
Gastroenterology and Hepatology - Oncology - Pathology - Public Health and Epidemiology - Surgery

Serum YKL-40 Independently Predicts Outcome after Transcatheter Arterial Chemoembolization of Hepatocellular Carcinoma
Published: Thursday, September 06, 2012
Author: Cheng-Bao Zhu et al.

by Cheng-Bao Zhu, Can Wang, Li-Li Chen, Guo-Liang Ma, Shi-Cai Zhang, Liang Su, Jian-Jun Tian, Zhong-Tao Gai

Background

Transcatheter arterial chemoembolization (TACE) is the most widely used treatment option for unresectable hepatocellular carcinoma (HCC). Elevated serum YKL-40 level has been shown to predict poor prognosis in HCC patients undergoing resection. This study was designed to validate the prognostic significance of serum YKL-40 in patients with HCC undergoing TACE treatment.

Methods

Serum YKL-40 level was determined by enzyme-linked immunosorbent assay. Overall survival (OS) was evaluated with the Kaplan-Meier method and compared by the log-rank test. Multivariate study with Cox proportional hazard model was used to evaluate independent prognostic variables of OS.

Results

The median pretreatment serum YKL-40 in HCC patients with was significantly higher than that in healthy controls (P<0.001). The YKL-40 could predict survival precisely either in a dichotomized or continuous fashion (P<0.001 and P?=?0.001, respectively). Multivariate Cox regression analysis indicated that serum YKL-40 was an independent prognostic factor for OS in HCC patients (P?=?0.001). In further stratified analyses, YKL-40 could discriminate the outcomes of patients with low and high alpha-fetoprotein (AFP) level (P?=?0.006 and 0.016, respectively). Furthermore, the combination of serum YKL-40 and AFP had more capacity to predict patients’ outcomes.

Conclusions

Serum YKL-40 was demonstrated to be an independent prognostic biomarker in HCC patients treated with TACE. Our results need confirmation in an independent study.

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