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Background Tumor-associated macrophages (TAMs), inflammatory cells in tumor microenvironment, are crucial for the tumor occurrence and progression which in turn increase the expression of soluble CD163 (sCD163). Nevertheless, not much has been established regarding sCD163 and its connection to HCC diagnosis and prognosis. This study was conducted to evaluate the diagnostic and prognostic role of sCD163 in patients with HCC on top of HCV-related liver cirrhosis. Forty adult patients with HCV-related liver cirrhosis and HCC (HCC group) were randomly selected and subjected to locoregional therapies, either transarterial chemoembolization (TACE) or radiofrequency ablation (RFA). Four patients were excluded because of portal vein invasion. Another group of 20 patients with liver cirrhosis only served as controls (LC group). Routine laboratory studies and abdominal ultrasound were done for all. Alpha-fetoprotein (AFP) and sCD163 were measured twice, at baseline and 1-month post-intervention, using a commercially available enzyme-linked immunosorbent assay kit. Results At baseline, sCD163 showed an insignificant higher value in HCC group ( p > 0.05). The best cutoff value for sCD163 and AFP was 6.2 mg/L and 195 ng/mL, respectively. AFP had a larger area under the curve (0.88 vs. 0.767). An overall significant decline was seen in sCD163 after treatment (6.5±1.5 to 3.1±2.5 mg/L; p < 0.001), while AFP showed an insignificant decrease ( p > 0.05). Also, sCD163 decreased significantly in the eradicated cases (6.1±1.4 mg/L before intervention vs. 2.3±1.4 mg/L after intervention, p < 0.01), while there was a significant increase in the recurrent cases (8.4±0.4 mg/L before intervention vs. 10.3±1.6 after intervention; p < 0.05). Moreover, sCD163 showed a significant difference in its pre-intervention and post-intervention values between recurrent and eradicated HCC cases ( p < 0.01). Conclusions It is concluded that sCD163 has a minor role as a diagnostic marker for HCC, yet it could be used as a good prognostic marker in predicting the tumor response to locoregional therapies.

egyptian liver journal/egyptian liver journal 

Diagnostic and prognostic value of serum soluble CD163 in cirrhotic patients with hepatitis C virus-related hepatocellular carcinoma before and after locoregional therapy