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In this study, we aim to explore the values of serum dickkopf-1 (DKK1) and circulating tumor cells (CTCs) in predicting the efficacy and prognosis of transcatheter arterial chemoembolization (TACE) treatment on patients with hepatocellular carcinoma (HCC). We did a retrospective analysis on 155 HCC patients who underwent TACE treatment. The patients were divided into response group (complete response and partial response) and nonresponse group (stable disease and progressive disease), and their changes in serum DKK1 and CTCs after TACE were recorded. Receiver operating characteristic curve and survival analysis were used to assess the predictive values of DKK1 and CTCs for TACE efficacy and long-term prognosis of HCC. We found that the levels of preoperative DKK1 and CTCs in patients with HCC had a moderate positive correlation (r = 0.54). After TACE treatment, the serum DKK1 and CTCs in the response group were significantly decreased compared to pretreatment levels (P < .05), whereas the nonresponse group showed significantly increased serum DKK1 and CTCs levels (P < .05). The largest area under the curve (AUC) was achieved when using >0.02 μg/L reduction in DKK1 level after 4 weeks of TACE to predict the efficacy of TACE treatment (AUC = 0.913, 95% confidence interval: 0.856-0.952, P < .001), with the sensitivity of 78.26% and the specificity of 88.07%. The overall survival, disease-free survival, and 5-year survival rates were all significantly lower in the patients with positive preoperative levels of serum DKK1 and CTCs. COX multivariate regression analysis showed that Eastern Cooperative Oncology Group score, and preoperative levels of serum DKK1 and CTCs are independent influencing factors for the prognosis of patients with HCC. Overall, our results demonstrated that serum DKK1 and CTCs levels were good biomarkers for predicting the efficacy and prognosis of TACE treatment in patients with HCC. Moreover, these parameters exhibited different characteristics, and might have different potential applications.

medicine

The predictive values of serum dickkopf-1 and circulating tumor cells in evaluating the efficacy of transcatheter arterial chemoembolization treatment on hepatocellular carcinoma