Mice were intranasally (i.n.) administered with recombinant mouse IL-33 (0.5 µg/dose, R&D, California, USA) in mice intraperitoneally (i.p.) administered with PNU-282987 (20 mg/kg, Abcam, California, USA) or GTS-21 (20 mg/kg, Abcam, California, USA) over three consecutive days (22 (link)). For Alternaria experiments, mice were i.n. administered with AA (100 µg/dose, Greer Labs, Lenoir, North Carolina, USA) in the presence or absence of PNU-282987 or GTS-21 on four consecutive days. Mice were sacrificed on the second day after the last challenge.
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