UP - logo
E-viri
Celotno besedilo
Recenzirano Odprti dostop
  • <h>Dimethyl fumarate and 4-...
    Ryan, Tristram A J; Hooftman, Alexander; Rehill, Aisling M; Johansen, Matt D; Brien, Eóin C O'; Toller-Kawahisa, Juliana E; Wilk, Mieszko M; Day, Emily A; Weiss, Hauke J; Sarvari, Pourya; Vozza, Emilio G; Schramm, Fabian; Peace, Christian G; Zotta, Alessia; Miemczyk, Stefan; Nalkurthi, Christina; Hansbro, Nicole G; McManus, Gavin; O'Doherty, Laura; Gargan, Siobhan; Long, Aideen; Dunne, Jean; Cheallaigh, Clíona Ní; Conlon, Niall; Carty, Michael; Fallon, Padraic G; Mills, Kingston H G; Creagh, Emma M; Donnell, James S O'; Hertzog, Paul J; Hansbro, Philip M; McLoughlin, Rachel M; Wygrecka, Małgorzata; Preston, Roger J S; Zasłona, Zbigniew; O'Neill, Luke A J

    Nature communications, 06/2023, Letnik: 14, Številka: 1
    Journal Article

    Excessive inflammation-associated coagulation is a feature of infectious diseases, occurring in such conditions as bacterial sepsis and COVID-19. It can lead to disseminated intravascular coagulation, one of the leading causes of mortality worldwide. Recently, type I interferon (IFN) signaling has been shown to be required for tissue factor (TF; gene name F3) release from macrophages, a critical initiator of coagulation, providing an important mechanistic link between innate immunity and coagulation. The mechanism of release involves type I IFN-induced caspase-11 which promotes macrophage pyroptosis. Here we find that F3 is a type I IFN-stimulated gene. Furthermore, F3 induction by lipopolysaccharide (LPS) is inhibited by the anti-inflammatory agents dimethyl fumarate (DMF) and 4-octyl itaconate (4-OI). Mechanistically, inhibition of F3 by DMF and 4-OI involves suppression of Ifnb1 expression. Additionally, they block type I IFN- and caspase-11-mediated macrophage pyroptosis, and subsequent TF release. Thereby, DMF and 4-OI inhibit TF-dependent thrombin generation. In vivo, DMF and 4-OI suppress TF-dependent thrombin generation, pulmonary thromboinflammation, and lethality induced by LPS, E. coli, and S. aureus, with 4-OI additionally attenuating inflammation-associated coagulation in a model of SARS-CoV-2 infection. Our results identify the clinically approved drug DMF and the pre-clinical tool compound 4-OI as anticoagulants that inhibit TF-mediated coagulopathy via inhibition of the macrophage type I IFN-TF axis.