Double-stranded RNA-dependent protein kinase (PKR) plays a critical role in antiviral defence of the host cells. PKR is also involved in cell cycle progression, cell proliferation, cell differentiation, tumorigenesis, and apoptosis. We previously reported that PKR is required for differentiation
Journal of immunology (Baltimore, Md. : 1950), 182(4), 2258-2268 (2009-02-10)
The S100 calcium-binding proteins S100A8 and S100A9 are elevated systemically in patients with viral infections. The S100A8-S100A9 complex facilitated viral replication in human CD4(+) T lymphocytes latently infected with HIV-1- and S100A8-induced HIV-1 transcriptional activity. Mechanisms inducing the S100 genes
We performed experiments to determine the effect of PKR activation on respiratory syncytial virus (RSV) replication. We first determined that RSV infection activates PKR which induces the phosphorylation of eIF2α, resulting in the formation of host stress granules. We used
Brain research bulletin, 79(3-4), 169-176 (2009-05-12)
Molecules involved in self-protection of neurons against glucose/oxygen/serum deprivation (GOSD) were investigated. Trypan blue dye exclusion assay, Western blotting, ELISA, cytokine antibody array and chemical blocking assay were applied in the study. Results showed that early induction (at 6h of
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 24(2), 617-626 (2009-10-09)
The evolution of Leishmania infection depends on the balance between microbicidal and suppressor macrophage functions. Double-stranded RNA (dsRNA)-activated protein kinase R (PKR), a classic antiviral protein, is able to regulate a number of signaling pathways and macrophage functions. We investigated
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