The Itaconate Pathway Is a Central Regulatory Node Linking Innate Immune Tolerance and Trained Immunity

Jorge Domínguez-Andrés, Boris Novakovic, Yang Li, Brendon P. Scicluna, Mark S. Gresnigt, Rob J.W. Arts, Marije Oosting, Simone J.C.F.M. Moorlag, Laszlo A. Groh, Jelle Zwaag, Rebecca M. Koch, Rob ter Horst, Leo A.B. Joosten, Cisca Wijmenga, Alessandro Michelucci, Tom van der Poll, Matthijs Kox, Peter Pickkers, Vinod Kumar, Henk StunnenbergMihai G. Netea

Onderzoeksoutput: Bijdrage aan tijdschriftArtikelpeer review

233 Citaten (Scopus)


Sepsis involves simultaneous hyperactivation of the immune system and immune paralysis, leading to both organ dysfunction and increased susceptibility to secondary infections. Acute activation of myeloid cells induced itaconate synthesis, which subsequently mediated innate immune tolerance in human monocytes. In contrast, induction of trained immunity by β-glucan counteracted tolerance induced in a model of human endotoxemia by inhibiting the expression of immune-responsive gene 1 (IRG1), the enzyme that controls itaconate synthesis. β-Glucan also increased the expression of succinate dehydrogenase (SDH), contributing to the integrity of the TCA cycle and leading to an enhanced innate immune response after secondary stimulation. The role of itaconate was further validated by IRG1 and SDH polymorphisms that modulate induction of tolerance and trained immunity in human monocytes. These data demonstrate the importance of the IRG1-itaconate-SDH axis in the development of immune tolerance and training and highlight the potential of β-glucan-induced trained immunity to revert immunoparalysis.

Originele taal-2Engels
Pagina's (van-tot)211-220.e5
TijdschriftCell Metabolism
Nummer van het tijdschrift1
StatusGepubliceerd - 8 jan. 2019
Extern gepubliceerdJa


Duik in de onderzoeksthema's van 'The Itaconate Pathway Is a Central Regulatory Node Linking Innate Immune Tolerance and Trained Immunity'. Samen vormen ze een unieke vingerafdruk.

Citeer dit