MPYS/STING-mediated TNF-α, not type I IFN, is essential for the mucosal adjuvant activity of (3'-5')-cyclic-di-guanosine-monophosphate in vivo.
MPYS/STING-mediated TNF-α, not type I IFN, is essential for the mucosal adjuvant activity of (3'-5')-cyclic-di-guanosine-monophosphate in vivo.
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DOI:
10.4049/jimmunol.1301812
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发表时间:
2014-01-01
期刊:
影响因子:
--
通讯作者:
Jin L
中科院分区:
文献类型:
--
作者:
Blaauboer SM;Gabrielle VD;Jin L
The bacterial second messenger (3ʹ–5ʹ)-cyclic-di-guanosine-monophosphate (CDG) is a promising mucosal adjuvant candidate that activates balanced Th1/Th2/Th17 responses. We showed previously that CDG activates stimulator of IFN genes (STING)-dependent IFN-I production in vitro. However, it is unknown whether STING or IFN-I is required for the CDG adjuvant activity in vivo. In this study, we show that STING−/− mice (Tmem173<tm1Camb>) do not produce Ag-specific Abs or Th1/Th2/Th17 cytokines during CDG/ Ag immunization. Intranasal administration of CDG did not induce TNF-α, IL-1β, IL-6, IL-12, or MCP-1 production in STING−/− mice. Surprisingly, we found that the cytokine and Ab responses were unaltered in CDG/Ag-immunized IFNAR−/− mice. Instead, we found that CDG activates STING-dependent, IFN-I–independent TNF-α production in vivo and in vitro. Furthermore, using a TNFR1−/− mouse, we demonstrate that TNF-α signaling is critical for CDG-induced Ag-specific Ab and Th1/Th2 cytokine production. This is distinct from STING-mediated DNA adjuvant activity, which requires IFN-I, but not TNF-α, production. Finally, we found that CDG activates STING-dependent, but IRF3 stimulation–independent, NF-κB signaling. Our results established an essential role for STING-mediated TNF-α production in the mucosal adjuvant activity of CDG in vivo and revealed a novel IFN-I stimulation–independent STING–NF-κB–TNF-α pathway.
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DOI:
10.1084/jem.20082874
发表时间:
2009-08-31
期刊:
The Journal of experimental medicine
影响因子:
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作者:
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期刊:
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DOI:
10.4049/jimmunol.1100088
发表时间:
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期刊:
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影响因子:
--
作者:
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影响因子:
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