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Nat Immunol. 2003 Jan;4(1):8-9.
IL-28, IL-29 and their class II cytokine receptor IL-28R.
Sheppard P,
Kindsvogel W,
Xu W,
Henderson K,
Schlutsmeyer S,
Whitmore TE,
Kuestner R,
Garrigues U,
Birks C,
Roraback J,
Ostrander C,
Dong D,
Shin J,
Presnell S,
Fox B,
Haldeman B,
Cooper E,
Taft D,
Gilbert T,
Grant FJ,
Tackett M,
Krivan W,
McKnight G,
Clegg C,
Foster D,
Klucher KM.
ZymoGenetics, Inc., 1201 Eastlake Avenue E., Seattle, WA 98102, USA.
Cytokines play a critical role in modulating the innate and adaptive immune systems. Here, we have identified from the human genomic sequence a family of three cytokines, designated interleukin 28A (IL-28A), IL-28B and IL-29, that are distantly related to type I interferons (IFNs) and the IL-10 family. We found that like type I IFNs, IL-28 and IL-29 were induced by viral infection and showed antiviral activity. However, IL-28 and IL-29 interacted with a heterodimeric class II cytokine receptor that consisted of IL-10 receptor beta (IL-10Rbeta) and an orphan class II receptor chain, designated IL-28Ralpha. This newly described cytokine family may serve as an alternative to type I IFNs in providing immunity to viral infection.
PMID: 12469119 [PubMed - indexed for MEDLINE]
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