Abstract:
:With the global pandemic of hepatitis B and C infections, the incidence of Hepatocellular carcinoma (HCC) is rapidly increasing world wide. We identified glypican-3 (GPC3), a novel oncofetal gene over-expressed specifically in human HCC, as based on data of cDNA microarrays. As GPC3 is a GPI-anchored membrane protein and could be secreted, we attempted to detect secreted GPC3 protein in sera from HCC patients using Western blotting and ELISA. GPC3 protein was positive in sera of 40.0% (16/40) of HCC patients, and negative in sera from subjects with liver cirrhosis (LC) (0/13), chronic hepatitis (CH) (0/34), and healthy donors (0/60). All subjects were Japanese. Although 12 of 40 HCC patients were negative for both alpha-fetoprotein (AFP) and PIVKA-II well known tumor markers of HCC, four of these were GPC3-positive in the sera. We also observed vanishing GPC3 protein in the sera of three patients after the surgical treatment for HCC. On the other hand, immunohistochemical analysis revealed that HCC expressed GPC3 protein in all 14 HCC patients tested. In conclusion, GPC3, as defined in this study was shown to be a useful tumor marker for cancer-diagnosis for large numbers of patients with HCC.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Nakatsura T,Yoshitake Y,Senju S,Monji M,Komori H,Motomura Y,Hosaka S,Beppu T,Ishiko T,Kamohara H,Ashihara H,Katagiri T,Furukawa Y,Fujiyama S,Ogawa M,Nakamura Y,Nishimura Ydoi
10.1016/s0006-291x(03)00908-2subject
Has Abstractpub_date
2003-06-20 00:00:00pages
16-25issue
1eissn
0006-291Xissn
1090-2104pii
S0006291X03009082journal_volume
306pub_type
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