Figure 1From: A polymorphism in the interleukin-4 receptor affects the ability of interleukin-4 to regulate Th17 cells: a possible immunoregulatory mechanism for genetic control of the severity of rheumatoid arthritisRegulation of interleukin (IL)-17 production in vitro. IL-17A levels (pg/ml) measured by enzyme-linked immunosorbent assay (ELISA) from supernatants taken from three different culture conditions in healthy individuals. Calculated P values are from two-tailed t-tests between IL-17 levels measured by ELISA from cultures containing anti-CD3, anti-CD3 plus Th17 stimulatory conditions and anti-CD3 plus Th17 stimulatory conditions with the addition of IL-4.Back to article page