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 language | English |
---|---|
Pages (from-to) | 179-185 |
Number of pages | 7 |
Journal | Cytokine |
Volume | 60 |
Issue number | 1 |
DOIs | |
State | Published - Oct 2012 |
Externally published | Yes |
Keywords
- Marmota himalayana
- Marmota monax
- Type i interferon receptor
- Woodchuck
- Woodchuck hepatitis virus