Trained immunity suppression determines kidney allograft survival
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.
Authors
- Yutaka Negishi (ORCID: https://orcid.org/0000-0002-7392-1287)
- Jordi Ochando (ORCID: https://orcid.org/0000-0001-7037-1681)
- Joost H.A. Martens
- Cansu Yanginlar (ORCID: https://orcid.org/0000-0002-0282-1078)
- Luuk B. Hilbrands (ORCID: https://orcid.org/0000-0002-4935-9765)
- Mihai Gheorghe Netea (ORCID: https://orcid.org/0000-0003-2421-6052)
- Maaike Jacobs (ORCID: https://orcid.org/0000-0002-0292-7219)
- Leo A. B. Joosten (ORCID: https://orcid.org/0000-0001-6166-9830)
- Marije C. Baas
- Willem J. M. Mulder (ORCID: https://orcid.org/0000-0001-8665-3878)
- Musa M. Mhlanga (ORCID: https://orcid.org/0000-0003-1381-3409)
- Marijke Baltissen
- Raphaël Duivenvoorden (ORCID: https://orcid.org/0000-0003-1446-8336)
- Michiel Vermeulen (ORCID: https://orcid.org/0000-0003-0836-6894)
- Abraham J. P. Teunissen (ORCID: https://orcid.org/0000-0002-0401-8262)
- Johan van der Vlag (ORCID: https://orcid.org/0000-0001-7843-5918)
- Martijn W.F. van den Hoogen (ORCID: https://orcid.org/0000-0003-0790-2405)
- Joren C. Madsen (ORCID: https://orcid.org/0000-0003-2724-1333)
- Inge Jonkman
- Nils Rother (ORCID: https://orcid.org/0000-0001-5129-3956)
- Zahi A. Fayad
Institutions
- Radboud University Nijmegen (NL)
- Iuliu Hațieganu University of Medicine and Pharmacy (RO)
- Erasmus MC (NL)
- Radboud University Medical Center (NL)
- Massachusetts General Hospital (US)
- Radboud Institute for Molecular Life Sciences (NL)
- Oncode Institute (NL)
- Icahn School of Medicine at Mount Sinai (US)
Publication Details
- Journal
- American Journal of Transplantation
- Published
- 2024-08-13
- DOI
- https://doi.org/10.1016/j.ajt.2024.08.006
- Citations
- 8
- Primary Topic
- Immune responses and vaccinations
- Type
- article
- Field-Weighted Citation Impact
- 1.92
Funders
- Radboud Universiteit
- Nierstichting
- Radboud Universitair Medisch Centrum
- National Institutes of Health