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KMID : 1103920090150030320
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Korean Journal of Hepatology
2009 Volume.15 No. 3 p.320 ~ p.330
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Prognostic value of serum osteopontin in hepatocellular carcinoma patients treated with transarterial chemoembolization
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Kim Sung-Hoon
Lee Dan-Bi
Kim Sung-Eun
Lee Yung-Sang
Suh Dong-Jin
Kim Kang-Mo
Chung Young-Hwa
Lee Se-Hwan
Lim Young-Suk
Yang Soo-Hyun
Kim Jeong-A
Lee Don
Lee Han-Chu
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Abstract
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Background/Aims : Osteopontin (OPN) is overexpressed in hepatocellular carcinoma (HCC) with postoperative recurrence or extrahepatic metastasis. However, its prognostic value in patients treated with transarterial chemoembolization (TACE) is unclear. We investigated the utility of serum OPN levels and changes therein as prognostic markers in HCC patients who have received TACE.
Methods: Forty-six patients with HCC were enrolled. Serum OPN levels were measured before and 4 weeks after TACE. Serum biochemistry and computed tomography (CT) scans were analyzed. We evaluated baseline serum OPN levels and subsequent changes therein in relation to tumor responses and cumulative survival rates following TACE. A decreasing pattern was defined as a decrease after TACE of more than 10% relative to baseline levels. A "responder" was defined as a patient who exhibited a tumor necrosis rate of higher than 50% on the follow-up CT scan.
Results: Higher initial serum OPN levels were associated with a large tumor, portal vein invasion, and an advanced tumor stage. Patients who had lower initial serum OPN levels and those who exhibited decreasing patterns after TACE tended to have more favorable tumor responses (P=0.043 and 0.055, respectively) and exhibited better cumulative survival rates (P=0.036 and 0.030, respectively). However, the initial serum OPN level and subsequent changes in serum OPN levels were not independent predictors for survival on multivariate analysis.
Conclusions: Serum OPN levels were significantly higher in patients with advanced HCC. In addition, HCC patients with low pretreatment serum OPN levels and those for whom serum OPN declined following TACE exhibited better tumor responses and survived for longer.
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KEYWORD
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Carcinoma, Hepatocellular, Osteopontin, Transarterial chemoembolization, Prognostic marker
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