Eradication of hepatitis c virus subgenomic replicon by interferon results in aberrant retinol-related protein expression

Kazuko Koike, Akinobu Takaki, Nobuyuki Kato, Mamoru Ouchida, Hirotaka Kanzaki, Tetsuya Yasunaka, Hidenori Shiraha, Yasuhiro Miyake, Kazuhide Yamamoto

Research output: Contribution to journalArticlepeer-review


Hepatitis C virus (HCV) infection induces several changes in hepatocytes, such as oxidative stress, steatosis, and hepatocarcinogenesis. Although considerable progress has been made during recent years, the mechanisms underlying these functions remain unclear. We employed proteomic techniques in HCV replicon-harboring cells to determine the effects of HCV replication on host-cell protein expression. We examined two-dimensional electrophoresis (2-DE) and mass spectrometry to compare and identify differentially expressed proteins between HCV subgenomic replicon-harboring cells and their "cured" cells. One of the identified proteins was confirmed using enzyme-linked immunosorbent assay (ELISA) and Western blot analysis.Full-length HCV genome RNA replicating and cured cells were also assessed using ELISA. Replicon-harboring cells showed higher expression of retinal dehydrogenase 1 (RALDH-1), which converts retinol to retinoic acid, and the cured cells showed higher expression of retinol-binding protein (RBP), which transports retinol from the fiver to target tissues. The alteration in RBP expression was also confirmed by ELISA and Western blot analysis. We conclude that protein expression profiling demonstrated that HCV replicon eradication affected retinol-related protein expression.

Original languageEnglish
Pages (from-to)461-468
Number of pages8
JournalActa medica Okayama
Issue number6
Publication statusPublished - 2012


  • Hepatitis C virus
  • Retinol-binding protein

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)


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