We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
A Critical Role for STING Signaling in Limiting Pathogenesis of Chikungunya Virus.
- Authors
Geng, Tingting; Lin, Tao; Yang, Duomeng; Harrison, Andrew G; Vella, Anthony T; Fikrig, Erol; Wang, Penghua
- Abstract
The stimulator of interferon gene (STING) pathway controls both DNA and RNA virus infection. STING is essential for induction of innate immune responses during DNA virus infection, while its mechanism against RNA virus remains largely elusive. We show that STING signaling is crucial for restricting chikungunya virus infection and arthritis pathogenesis. Sting-deficient mice (Stinggt/gt) had elevated viremia throughout the viremic stage and viral burden in feet transiently, with a normal type I IFN response. Stinggt/gt mice presented much greater foot swelling, joint damage, and immune cell infiltration than wild-type mice. Intriguingly, expression of interferon-γ and Cxcl10 was continuously upregulated by approximately 7 to 10-fold and further elevated in Stinggt/gt mice synchronously with arthritis progression. However, expression of chemoattractants for and activators of neutrophils, Cxcl5, Cxcl7, and Cxcr2 was suppressed in Stinggt/gt joints. These results demonstrate that STING deficiency leads to an aberrant chemokine response that promotes pathogenesis of CHIKV arthritis.
- Subjects
DNA virus diseases; CHIKUNGUNYA virus; RNA virus infections; VIRUS diseases; RNA viruses; ALPHAVIRUSES
- Publication
Journal of Infectious Diseases, 2021, Vol 223, Issue 12, p2186
- ISSN
0022-1899
- Publication type
journal article
- DOI
10.1093/infdis/jiaa694