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Hiroyuki Kaji,Akira Togayachi,Makoto Ochou,Maki Sogabe,Takashi Okura,Hirofumi Nozaki,Takashi Angata,Yasunori Chiba,Hidenori Ozaki,Atsushi Kuno,Yasuhito Tanaka,Yuzuru Ikehara,Masashi Mizokami,Hisashi N 한국당과학회 2012 한국당과학회 학술대회 Vol.2012 No.1
We present here a high-throughput strategy to discover serological biomarkers for early-detection of hepatocellular carcinoma (HCC). Our strategy is also applicable to assess the progressed liver fibrosis that is associated with virus hepatitis. The glycan structure on glycoproteins derived from cancerous cells is known to be different from that derived from normal cells, specifically, the increased aberrant glycosylation appears in patient serum with virus hepatitis along with either or both the initiation and progression. Based on the above perceptions, in order to identify glycoproteins carrying aberrant glycosylation in serum of liver disease patients, we analyzed lectin-captured glycopeptides by the IGOT method. Many glycoproteins carrying altered glycans were successfully identified. The increased amount of these glycoproteins was clinically relevant to the progression of the liver diseases. We are now selecting appropriate molecules depending on the feasibility to detect an abnormality in the liver, such as the occurrence of liver cell neoplasm.