Comparison of cytokine production driven by peptide 861-874 or band 3 between splenic T cells derived from NZB mice 3 weeks after they had inhaled saline or peptide 861-875 (Glu861, Lys875). The levels of the Th cytokines IFN-γ, IL-4, and IL-10 produced were measured by ELISA. No antigen was added to the negative control wells. Each bar represents the mean values (n = 4 or more) of peak responses (^*P < .05, ^**P < .01, Student t test).