Role of indoleamine-2, 3-dioxygenase in alpha/beta and gamma interferon-mediated antiviral effects against herpes simplex virus infections

O Adams, K Besken, C Oberdorfer… - Journal of …, 2004 - Am Soc Microbiol
O Adams, K Besken, C Oberdorfer, CR MacKenzie, O Takikawa, W Daubener
Journal of virology, 2004Am Soc Microbiol
ABSTRACT Gamma interferon (IFN-γ)-mediated indoleamine-2, 3-dioxygenase (IDO)
activity in human astrocytoma cells and in native astrocytes was found to be responsible for
the inhibition of herpes simplex virus replication. The effect is abolished in the presence of
excess amounts of l-tryptophan. Both IFN-α and IFN-β restricted herpes simplex virus
replication in both cell types, but (in contrast to the results seen with IFN-γ) the addition of an
excess amount of l-tryptophan did not inhibit the induced antiviral effect.
Abstract
Gamma interferon (IFN-γ)-mediated indoleamine-2,3-dioxygenase (IDO) activity in human astrocytoma cells and in native astrocytes was found to be responsible for the inhibition of herpes simplex virus replication. The effect is abolished in the presence of excess amounts of l-tryptophan. Both IFN-α and IFN-β restricted herpes simplex virus replication in both cell types, but (in contrast to the results seen with IFN-γ) the addition of an excess amount of l-tryptophan did not inhibit the induced antiviral effect.
American Society for Microbiology