CCR3 and asthma: The expression levels of IL17RA, IL4RA, integrin β2, CCR3, FCER1A, TGFB1, TLR‐3, TLR‐7, and TLR‐9 (Figure 1B,C; Figure 2B,C; Figure 3A,B,D–F) in eosinophils treated with IL‐17 for 3 h were higher for normal individuals than for patients with asthma.