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NK cells promote cardiac cell death and regulate myelopoiesis in myocardial infarction

Nature Communications, vol. 17

Abstract

Ischemic heart failure remains a major clinical challenge, underscoring the need to better understand post-infarction immune mechanisms and identify new therapeutic targets. Both innate and adaptive immunity contribute to adverse cardiac remodeling following myocardial infarction (MI), yet the role of cytotoxic cells such as natural killer (NK) cells remains poorly defined. Here, we show that after acute MI in mice, NK cells are recruited to the ischemic myocardium in a CCR2-dependent manner and become activated. Activated NK cells locally release granzyme B, promoting cardiomyocyte apoptosis, adverse ventricular remodeling, and impaired cardiac function. Genetic deletion or pharmacological depletion of NK cells reduces cardiomyocyte death, attenuates inflammation, limits myocardial injury, and improves cardiac function. In contrast, NK cell activation using an anti-NKG2A monoclonal antibody exacerbates ischemic heart failure. We further demonstrate that NK cells regulate bone marrow myelopoiesis through local GM-CSF production. Finally, we identify a distinct NK cellular and transcriptomic signature in human ischemic heart tissue at early stages. Together, these findings reveal a detrimental role for NK cells following acute MI and highlight NK cells as potential therapeutic targets to limit adverse cardiac remodeling.

Authors 33

  1. Inserm · Université Paris Cité · Paris Cardiovascular Research Center

    Affiliation as printed

    Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France

  2. Inserm · Université Paris Cité · Paris Cardiovascular Research Center

    Affiliation as printed

    Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France

  3. Inserm · Université Paris Cité · Paris Cardiovascular Research Center

    Affiliation as printed

    Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France

  4. RWTH Aachen University

    Affiliation as printed

    Institute of Experimental Medicine and Systems Biology, RWTH Aachen University, Aachen, Germany

  5. Instituto de Investigación Sanitaria de Santiago · Complejo Hospitalario Universitario de Santiago

    Affiliation as printed

    Laboratorio de Endocrinología Celular, Área de Endocrinología Molecular y Cellular Instituto de Investigación Sanitaria de Santiago, Complejo Hospitalario Universitario de Santiago (CHUS), Santiago de Compostela, Spain

  6. Inserm · Université Paris Cité · Paris Cardiovascular Research Center

    Affiliation as printed

    Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France

  7. Inserm · Institut Necker Enfants Malades

    Affiliation as printed

    Clinique Saint Gatien Alliance (NCT + ), Saint-Cyr-sur-Loire, France, INSERM U1151, Necker Enfants Malades (INEM), IMMEDIAB Laboratory, Paris, France

  8. Inserm · Université Paris Cité · Paris Cardiovascular Research Center

    Affiliation as printed

    Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France

  9. Centre National de la Recherche Scientifique · Sorbonne Paris Cité · Inserm · Université Paris Cité · Institut des Maladies Génétiques Imagine

    Affiliation as printed

    Institut Imagine, INSERM U1163, CNRS ERL 8254, Sorbonne Paris-Cité, Laboratoire d'Excellence GR-Ex, Université Paris Cité, Paris, France

  10. Inserm · Université Paris Cité · Paris Cardiovascular Research Center

    Affiliation as printed

    Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France

  11. Inserm · Université Paris Cité · Paris Cardiovascular Research Center

    Affiliation as printed

    Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France

  12. Inserm · Université Paris Cité · Paris Cardiovascular Research Center

    Affiliation as printed

    Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France

  13. Ludwig-Maximilians-Universität München · German Centre for Cardiovascular Research · Institut für Prophylaxe und Epidemiologie der Kreislaufkrankheiten

    Affiliation as printed

    German Centre for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany

    Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University Munich (LMU), Munich, Germany

  14. Ludwig-Maximilians-Universität München · German Centre for Cardiovascular Research · University of Bern · University Hospital of Bern · Institut für Prophylaxe und Epidemiologie der Kreislaufkrankheiten

    Affiliation as printed

    Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland

    Division of Angiology, Swiss Cardiovascular Center, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland

    German Centre for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany

    Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University Munich (LMU), Munich, Germany

  15. Ludwig-Maximilians-Universität München · Maastricht University · Maastricht University Medical Centre · Institut für Prophylaxe und Epidemiologie der Kreislaufkrankheiten · Munich Cluster for Systems Neurology

    Affiliation as printed

    Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, Maastricht, The Netherlands

    Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University Munich (LMU), Munich, Germany

    Munich Cluster for Systems Neurology (SyNergy), Munich, Germany

  16. Inserm · Université Paris Cité · Paris Cardiovascular Research Center

    Affiliation as printed

    Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France

  17. Assistance Publique – Hôpitaux de Paris · Hôpital Européen Georges-Pompidou · Centre d'Investigation Clinique Hôpital Européen Georges Pompidou

    Affiliation as printed

    CIC1418 and DMU CARTE, AP-HP, Hôpital Européen Georges-Pompidou, Paris, France

  18. Assistance Publique – Hôpitaux de Paris · Hôpital Européen Georges-Pompidou · Centre d'Investigation Clinique Hôpital Européen Georges Pompidou

    Affiliation as printed

    CIC1418 and DMU CARTE, AP-HP, Hôpital Européen Georges-Pompidou, Paris, France

  19. Inserm · Université Paris Cité · Paris Cardiovascular Research Center

    Affiliation as printed

    Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France

  20. Universitätsklinikum Würzburg

    Affiliation as printed

    Institute of Experimental Biomedicine, University Hospital Würzburg, Würzburg, Germany

  21. Universitätsklinikum Würzburg

    Affiliation as printed

    Institute of Experimental Biomedicine, University Hospital Würzburg, Würzburg, Germany

  22. University of Würzburg · Helmholtz Institute for RNA-based Infection Research

    Affiliation as printed

    Helmholtz Institute for RNA-based Infection Research (HIRI), Helmholtz-Center for Infection Research (HZI), Würzburg, Germany

    Institute of Molecular Infection Biology (IMIB), University of Würzburg, Würzburg, Germany

  23. Inserm · Université Paris Cité · Universitätsklinikum Würzburg · Paris Cardiovascular Research Center

    Affiliation as printed

    Institute of Experimental Biomedicine, University Hospital Würzburg, Würzburg, Germany

    Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France

  24. Inserm · Université Paris Cité · Paris Cardiovascular Research Center

    Affiliation as printed

    Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France

  25. Inserm · Université Paris Cité · Paris Cardiovascular Research Center

    Affiliation as printed

    Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France

  26. Inserm · Université Paris Cité · Paris Cardiovascular Research Center

    Affiliation as printed

    Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France

  27. Centre National de la Recherche Scientifique · Sorbonne Paris Cité · Inserm · Université Paris Cité · Institut des Maladies Génétiques Imagine

    Affiliation as printed

    Institut Imagine, INSERM U1163, CNRS ERL 8254, Sorbonne Paris-Cité, Laboratoire d'Excellence GR-Ex, Université Paris Cité, Paris, France

  28. The University of Melbourne · Walter and Eliza Hall Institute of Medical Research

    Affiliation as printed

    Walter and Eliza Hall Institute of Medical Research and Department of Medical Biology, University of Melbourne, Parkville, Melbourne, VIC, Australia

  29. Inserm · Université Paris Cité · Paris Cardiovascular Research Center

    Affiliation as printed

    Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France

  30. RWTH Aachen University

    Affiliation as printed

    Institute of Experimental Medicine and Systems Biology, RWTH Aachen University, Aachen, Germany

  31. Inserm · Université Paris Cité · Universitätsklinikum Würzburg · Paris Cardiovascular Research Center

    Affiliation as printed

    Institute of Experimental Biomedicine, University Hospital Würzburg, Würzburg, Germany

    Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France

  32. Centre National de la Recherche Scientifique · Aix-Marseille Université · Inserm · Centre d’Immunologie de Marseille-Luminy

    Affiliation as printed

    Aix Marseille Université, CNRS, INSERM, Centre d'Immunologie de Marseille-Luminy, Marseille, France

  33. Hafid Ait-Oufella corresponding

    Sorbonne Université · Inserm · Assistance Publique – Hôpitaux de Paris · Université Paris Cité · Paris Cardiovascular Research Center

    Affiliation as printed

    Sorbonne Université, Service de médecine intensive-Réanimation, Assistance Publique, Hôpitaux de Paris, Paris, France. hafid.aitoufella@inserm.fr

    Université Paris Cité, INSERM U970, Paris Cardiovascular Research Center, Paris, France. hafid.aitoufella@inserm.fr

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References 43