Molecular characterization of the type I IFN receptor in two woodchuck species and detection of its expression in liver samples from woodchucks infected with woodchuck hepatitis virus (WHV)

Hebin Fan, Zhenni Zhu, Yang Wang, Xiaoyong Zhang, Yinping Lu, Yuanqing Tao, Wei Fan, Zhongdong Wang, Hu Wang, Micheal Roggendorf, Mengji Lu, Baoju Wang, Dongliang Yang

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Type I interferons (IFN-α/β) serve as the first line of defense against viral infection and share the same type I IFN receptor (IFNAR) complex, which is composed of IFNAR1 and -2. The Eastern woodchuck (Marmota monax) and Chinese woodchuck (Marmota himalayana) are suitable for studying hepatitis B virus (HBV) infection. Here, the complete or partial sequences of the IFNARs of both species were obtained and analyzed. Small interference RNAs targeting wIFNAR1 and -2 specifically down-regulated the expression of wIFNAR1 and -2 and the IFN-stimulated gene MxA in a woodchuck cell line, respectively. IFNAR2 was significantly up-regulated in primary woodchuck hepatocytes stimulated with IFN-α or -γ. The expression of woodchuck IFNAR1 and -2 was decreased in woodchucks chronically infected with woodchuck hepatitis virus (WHV). These results are essential for studying type I IFN-related innate immunity and therapy in hepadnaviral infection in the woodchuck model.

Original languageEnglish
Pages (from-to)179-185
Number of pages7
JournalCytokine
Volume60
Issue number1
DOIs
StatePublished - Oct 2012
Externally publishedYes

Keywords

  • Marmota himalayana
  • Marmota monax
  • Type i interferon receptor
  • Woodchuck
  • Woodchuck hepatitis virus

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