論文

査読有り
2017年10月

Hepatitis C virus-induced innate immune responses in human iPS cell-derived hepatocyte-like cells

VIRUS RESEARCH
  • Fuminori Sakurai
  • ,
  • Takemaru Kunito
  • ,
  • Kazuo Takayama
  • ,
  • Rina Hashimoto
  • ,
  • Masashi Tachibana
  • ,
  • Naoya Sakamoto
  • ,
  • Takaji Wakita
  • ,
  • Hiroyuki Mizuguchi

242
開始ページ
7
終了ページ
15
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.virusres.2017.09.004
出版者・発行元
ELSEVIER SCIENCE BV

Hepatitis C virus (HCV) infection is a major cause of liver-related morbidity and mortality. In order to develop effective remedies for hepatitis C, it is important to understand the HCV infection profile and host-HCV interaction. HCV-induced innate immune responses play a crucial role in spontaneous HCV clearance; however, HCV-induced innate immune responses have not been fully evaluated in hepatocytes, partly because there are few in vitro models of HCV-induced innate immunity. Recently, human induced pluripotent stem (iPS) cells have received much attention as an in vitro model of infection with various pathogens, including HCV. We previously established highly functional hepatocyte-like cells differentiated from human iPS cells (iPS-HLCs). Here, we examined the potential of iPS-HLCs as an in vitro HCV infection model, especially for evaluation of the relationship between HCV infection levels and HCV-induced innate immunity. Significant expressions of type I and III interferons (IFNs) and IFN-stimulated genes (ISGs) were induced following transfection with HCV genomic replicon RNA in iPS-HLCs. Following inoculation with the HCV JFH-1 strain in iPS-HLCs, peaks of HCV genome replication and HCV protein expression were observed on day 2, and then both the HCV genome and protein levels gradually declined, while the mRNA levels of type III IFNs and ISGs peaked at day 2 following inoculation. These results suggest that the HCV genome efficiently replicates in iPS-HLCs, resulting in HCV genome-induced up-regulation of IFNs and ISGs, and thereafter, HCV genome-induced up-regulation of IFNs and ISGs mediates a reduction in the HCV genome and protein levels in iPS-HLCs.

リンク情報
DOI
https://doi.org/10.1016/j.virusres.2017.09.004
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/28893653
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000415777800002&DestApp=WOS_CPL
ID情報
  • DOI : 10.1016/j.virusres.2017.09.004
  • ISSN : 0168-1702
  • eISSN : 1872-7492
  • PubMed ID : 28893653
  • Web of Science ID : WOS:000415777800002

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