The greater induction potency of ChIFN-β than ChIFN-α on ISGs involved in signaling.

<p>After DF-1 cells were incubated with 10 U/ml ChIFN-α or -β, the transcriptional levels of STAT1 (A), IRF1 (B), MyD88 (C) and Mx (D) were assayed at the indicated times post treatment by real time PCR. Data were shown as mean ± SEM (n = 3). The Mann-Whitney <i>U</i> test was used to compare the differences in relative mRNA levels between ChIFN-α and ChIFN-β treatments at the same time points. A value of <i>P</i><0.05 was considered statistically significant. *<i>P</i><0.05 and **<i>P</i><0.01. The asterisks were masked on the top of higher columns.