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Before-and-after plots showing effects of prior exposure to Th2 cytokines on the expression of mRNA for anti-viral response genes by human AEC at baseline (left) or following stimulation with poly I:C (right). Data are mean values for individual patients, showing expression relative to the housekeeping gene HPRT. p values for differences between cells cultured in media with or without IL-4 and IL-13 were assessed by ratio paired t-test.
