IL-18BP mediates the balance between protective and pathological immune responses to Toxoplasma gondii.
IL-18BP mediates the balance between protective and pathological immune responses to Toxoplasma gondii.
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DOI:
10.1016/j.celrep.2023.112147
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发表时间:
2023-03-28
期刊:
影响因子:
8.8
通讯作者:
中科院分区:
文献类型:
--
作者:
Interleukin-18 (IL-18) promotes natural killer (NK) and T cell production of interferon (IFN)-γ, a key factor in resistance to Toxoplasma gondii, but previous work has shown a limited role for endogenous IL-18 in control of this parasite. Although infection with T. gondii results in release of IL-18, the production of IFN-γ induces high levels of the IL-18 binding protein (IL-18BP). Antagonism of IL-18BP with a “decoy-to-the-decoy” (D2D) IL-18 construct that does not signal but rather binds IL-18BP results in enhanced innate lymphoid cell (ILC) and T cell responses and improved parasite control. In addition, the use of IL-18 resistant to IL-18BP (“decoy-resistant” IL-18 [DR-18]) is more effective than exogenous IL-18 at promoting innate resistance to infection. DR-18 enhances CD4+ T cell production of IFN-γ but results in CD4+ T cell-mediated pathology. Thus, endogenous IL-18BP restrains aberrant immune pathology, and this study highlights strategies that can be used to tune this regulatory pathway for optimal anti-pathogen responses. Clark et al. use variants of the cytokine IL-18 to bypass the effects of the IL-18 binding protein to assess their impact on infection with Toxoplasma gondii. These approaches highlight that during infection, unopposed IL-18 enhances NK cell production of IFN-γ but can also promote CD4+ T cell-mediated pathology.
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影响因子:
7.7
作者:
Clark JT;Christian DA;Gullicksrud JA;Perry JA;Park J;Jacquet M;Tarrant JC;Radaelli E;Silver J;Hunter CA
通讯作者:
Hunter CA
影响因子:
3.7
作者:
Stumhofer JS;Silver JS;Hunter CA
通讯作者:
Hunter CA
影响因子:
4.4
作者:
Harel, Mathilde;Girard-Guyonvarc'h, Charlotte;Gabay, Cem
通讯作者:
Gabay, Cem
影响因子:
15.3
作者:
Belkaya, Serkan;Michailidis, Eleftherios;Casanova, Jean-Laurent
通讯作者:
Casanova, Jean-Laurent
影响因子:
2.2
作者:
Bedi, Brahmchetna;McNair, Nina N.;Mead, Jan R.
通讯作者:
Mead, Jan R.