HSV-1 Infection Triggers EGR-1 in Rabbit Corneal Cells
Author Information
Author(s): Bedadala Gautam R, Palem Jayavardhana R, Graham Lorna, Hill James M, McFerrin Harris E, Hsia Shao-Chung
Primary Institution: University of Maryland Eastern Shore
Hypothesis
HSV-1 lytic infection triggers the expression of important multi-functional transcription factor Egr1.
Conclusion
Egr-1 is expressed rapidly upon HSV-1 infection, potentially playing a key role in viral gene expression and disease progression.
Supporting Evidence
- Egr-1 protein was absent in uninfected cells but detected 24-72 hours post HSV-1 infection.
- ChIP assays showed that NFκB and CREB were recruited to the Egr-1 promoter during infection.
- Inhibitors of NFκB and dominant-negative CREB repressed Egr-1 induction by HSV-1.
Takeaway
When the herpes virus infects certain eye cells, it makes a special protein called Egr-1 that helps the virus grow and cause disease.
Methodology
Cell lines were infected with HSV-1, and Egr-1 expression was analyzed using RT-PCR, Western blot, and immunofluorescence microscopy.
Limitations
The study primarily focused on specific cell lines and may not fully represent all cell types affected by HSV-1.
Digital Object Identifier (DOI)
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