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Glypican-3 and Melanoma Antigen Genes 1 and 3 as Tumor Markers for Hepatocellular Carcinoma.

Hepatocellular carcinoma (HCC) is the commonest liver cancer; its incidence and prevalence are continuously increased. Glypican3 (GPC3), melanoma antigen-1, 3 genes (MAGE1 and 3) are tumor markers used in HCC. We evaluated their role in HCC detection and assessed their relation to tumor parameters. Three groups, HCC group, liver cirrhosis group and a control group were studied. AFP, GPC3, and MAGE1 and 3 mRNA were determined in all study subjects. Tissue GPC3 was examined in patients with HCC only. Serum AFP and GPC3 were elevated in HCC group compared to other groups (P < 0.000 and P < 0.001, respectively). AFP at cutoff 44.4ng/ml and GPC3 at cutoff 5.6µg/L resulted in 81% and 90.1% sensitivity, 73.3% and 92.6% specificity, respectively. The combined measurement of both increased the sensitivity and the specificity to 100% and 93.3%, respectively. GPC 3 was detected in tissues of 81.0% of the cases. MAGE-1 and MAGE-3 genes expression were detected in 61.9% and 52.4%, respectively in HCC cases but not in other groups. GPC3, MAGE1and 3 were increased with advanced tumor stage, size, and nodule numbers. We concluded that GPC3 is a promising diagnostic marker for HCC, and MAGE 1 and 3 could be helpful in early detection of extrahepatic metastasis of HCC.

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