Article ; Online: STING Agonist-Mediated Cytokine Secretion Is Accompanied by Monocyte Apoptosis.
ACS infectious diseases
2022 Volume 8, Issue 3, Page(s) 463–471
Abstract: The cGAS-STING (cyclic GMP-AMP synthase-stimulator of interferon genes) pathway plays a crucial role in inducing an antiviral and antitumor immune response. We studied the effects of synthetic STING agonists on several immune populations and related ... ...
Abstract | The cGAS-STING (cyclic GMP-AMP synthase-stimulator of interferon genes) pathway plays a crucial role in inducing an antiviral and antitumor immune response. We studied the effects of synthetic STING agonists on several immune populations and related cytokine production. In comparison with the toll-like receptor 7 (TLR7) agonist, STING agonists induced secretion of a broader proinflammatory cytokine spectrum. Unlike the TLR7 agonist, the structurally diverse STING agonists partially depleted B and NK cells and completely depleted CD14+ monocytes via induction of apoptosis. The TANK-binding kinase 1 inhibitor efficiently prevented interferon alpha (IFNα) secretion and cell depletion, suggesting their possible dependence on the cGAS-STING pathway activation. Finally, IFNα, tumor necrosis factor alpha, interleukin 6, and interleukin 1 beta secretion and CD14+ monocyte apoptosis were primary responses to STING agonists, whereas IFNγ was secreted secondarily. These findings bring new insights into the cGAS-STING pathway immunomodulation that is of future therapeutic importance. |
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MeSH term(s) | Apoptosis ; Cytokines/metabolism ; Membrane Proteins/genetics ; Monocytes/metabolism ; Signal Transduction |
Chemical Substances | Cytokines ; Membrane Proteins |
Language | English |
Publishing date | 2022-02-08 |
Publishing country | United States |
Document type | Journal Article ; Research Support, Non-U.S. Gov't |
ISSN | 2373-8227 |
ISSN (online) | 2373-8227 |
DOI | 10.1021/acsinfecdis.1c00554 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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