Normalized pSTAT3 response in THP-1 cells stimulated with 10 nM WT IL-10, a supermonomeric variant of IL-10 (M), a monomeric dominant negative mutant of IL-10 (DN), IL-23, or IL-23 with the IL-23IL-10 adaptors. n = 2, N = 3. Data are plotted as mean SD.