Increased expression of CD200R1 and decreased expression of CD200R3 on basophils in response to IgE and IgG receptor-mediated activation, respectively. Peripheral blood was incubated at 37°C for 2 h with 100 ng/mL anti-mouse FcγRIII/II (2.4G2), 300 ng/mL goat anti-mouse IgE, or the respective isotype control antibody. Relative expression levels of CD200R1 and CD200R3 on basophils are shown. Data are represented as means ± SDs ( n = 3). Asterisks indicate significant differences ( P
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