Trained immunity suppression determines kidney allograft survival

Inge Jonkman, Maaike M.E. Jacobs, Yutaka Negishi, Cansu Yanginlar, Joost H.A. Martens, Marijke Baltissen, Michiel Vermeulen, Martijn W.F. van den Hoogen, Marije Baas, Johan van der Vlag, Zahi A. Fayad, Abraham J.P. Teunissen, Joren C. Madsen, Jordi Ochando, Leo A.B. Joosten, Mihai G. Netea, Willem J.M. Mulder, Musa M. Mhlanga, Luuk B. Hilbrands, Nils RotherRaphaël Duivenvoorden (Corresponding author)

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Samenvatting

The innate immune system plays an essential role in regulating the immune responses to kidney transplantation, but the mechanisms through which innate immune cells influence long-term graft survival are unclear. The current study highlights the vital role of trained immunity in kidney allograft survival. Trained immunity describes the epigenetic and metabolic changes that innate immune cells undergo following an initial stimulus, allowing them have a stronger inflammatory response to subsequent stimuli. We stimulated healthy peripheral blood mononuclear cells with pretransplant and posttransplant serum of kidney transplant patients and immunosuppressive drugs in an in vitro trained immunity assay and measured tumor necrosis factor and interleukin 6 cytokine levels in the supernatant as a readout for trained immunity. We show that the serum of kidney transplant recipients collected 1 week after transplantation can suppress trained immunity. Importantly, we found that kidney transplant recipients whose serum most strongly suppressed trained immunity rarely experienced graft loss. This suppressive effect of posttransplant serum is likely mediated by previously unreported effects of immunosuppressive drugs. Our findings provide mechanistic insights into the role of innate immunity in kidney allograft survival, uncovering trained immunity as a potential therapeutic target for improving graft survival.

Originele taal-2Engels
Pagina's (van-tot)2022-2033
Aantal pagina's12
TijdschriftAmerican Journal of Transplantation
Volume24
Nummer van het tijdschrift11
Vroegere onlinedatum13 aug. 2024
DOI's
StatusGepubliceerd - nov. 2024

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