A novel method for detection of IFN-lambda 3 binding to cells for quantifying IFN-lambda receptor expression.

Journal of immunological methods (2017-03-10)
Deanna M Santer, Gillian E S Minty, Adil Mohamed, Lesley Baldwin, Rakesh Bhat, Michael Joyce, Adrian Egli, D Lorne J Tyrrell, Michael Houghton

Type III interferons (IFN-lambdas) are important antiviral cytokines that also modulate immune responses acting through a unique IFN-λR1/IL-10R2 heterodimeric receptor. Conflicting data has been reported for which cells express the IFN-λR1 subunit and directly respond to IFN-λs. In this study we developed a novel method to measure IFN-λ3 binding to IFN-λR1/IL-10R2 on the surface of cells and relate this to a functional readout of interferon stimulated gene (ISG) activity in various cell lines. We show that Huh7.5 hepatoma cells bind IFN-λ3 at the highest levels with the lowest K

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