Extended Data Fig. 4: Stronger immune response observed during basolateral infection of hIECs is not due to differences in transcript stability.

(a) Polarized T84 cells were infected apically or basolaterally with MRV. 16 hpi cells were treated with actinomycin D to block transcription. RNA samples were collected at the indicated times post-actinomycin treatment. (b) Relative amounts of type I (upper panel) and type III IFN (lower panel) transcripts (normalized to the time of actinomycin treatment) were evaluated by q-RT-PCR (left panel). The half-life of each transcripts was determined (right panel). Results indicate the mean +/- sd. n=3. P values were determined from a two-tailed unpaired t test using GraphPad Prizm.