Virology
abstract
Endothelial cells are believed to play an important role in response to virus infection.Here,we used a microarray technology to study the gene expression profile in human umbilical vein endothelial cells at 24hpostinfection with H9N2 virus infection induced an abundance of differential expressed genes,exhibiting a transcriptional
signature of viral infection.High levels of chemokine gene expressions were detected following
treatment. Surprisingly,the most significantly up-regulated genes were mainly interferon-stimulated genes (ISGs),although there was no change in interfer on gene expression and interferon protein level.
We also found that viral particles were more potent than viruses in inducing ISG sexpression.These results suggest that induction of expression of ISGs is mainly dependent on the interaction between endothelial cells. Our data offer further insight into the interaction between endothelial cells and H9N2 in fluenza viruses.