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  • Title: Risk of hepatocellular carcinoma in HBV cirrhotic patients assessed by the combination of miR-122, AFP and PIVKA-II.
    Author: Caviglia GP, Abate ML, Gaia S, Petrini E, Bosco C, Olivero A, Rosso C, Ciancio A, Pellicano R, Saracco GM, Rizzetto M, Smedile A.
    Journal: Panminerva Med; 2017 Dec; 59(4):283-289. PubMed ID: 28650134.
    Abstract:
    BACKGROUND: Reliable biomarkers for early detection of hepatocellular carcinoma (HCC) in patients with cirrhosis are lacking. We evaluated the use of miR-122, alpha-fetoprotein (AFP) and protein induced by vitamin k absence/antagonist II (PIVKA-II) for HCC risk prediction in patients with HBV-related cirrhosis under surveillance. METHODS: We first analyzed a group of 63 patients with HBV-related liver cirrhosis of whom 33 had HCC. Then we performed a retrospective analysis on another group of 13 cirrhotic patients who developed HCC during surveillance, of whom serial serum samples were available (at time of HCC diagnosis [T0], 6-9 months [T-1] and 12-18 months [T-2] before HCC detection). Serum miR-122 levels were assessed by quantitative real time-PCR, whereas AFP and PIVKA-II were measured by fully automated chemiluminescent enzyme immunoassay. RESULTS: Serum levels of miR-122, AFP and PIVKA-II were different between patients with cirrhosis and those with HCC (P=0.024, P<0.001 and P<0.001, respectively). Areas under the curve (AUC) were 0.675 for miR-122, 0.791 for AFP and 0.846 for PIVKA-II, while their combination improved the discrimination power between cirrhosis and HCC (AUC=0.918). In the longitudinal study, we found a significant variation overtime for the biomarkers combination (P=0.011) but not for each single biomarker (miR-122, P=0.163; AFP, P=0.170; PIVKA-II, P=0.447). Combined miR-122+AFP+PIVKA-II adjusted Hazard Ratio for HCC development was 10.63, 95% confidence interval 1.87-60.28 (P<0.001). CONCLUSIONS: In HBV-related cirrhosis, the combination of miR-122, AFP and PIVKA-II enables the identification of patients at higher risk of HCC development that could benefit from closer monitoring.
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