Fig 4. Profiling of the proinflammatory mRNA transcripts in HPMECs infected with IAV H1N1 and H9N2.

Cultured HPMECs were infected with H1N1, H9N2 or were mock infected. Total RNA were prepared at indicated time points and cDNA synthesized for analysis of fold change of the selected genes by real-time RT-PCR. The experiments have been repeated for three times. Statistical analyses were performed with ANOVA. * P<0.05; ** P<0.01; *** P<0.001. (A) H1N1-infected cells; (B) H9N2-infected cells.